platform/kernel/linux-starfive.git
7 months agotools/testing/cxl: Define a fixed volatile configuration to parse
Dan Williams [Fri, 10 Feb 2023 09:06:45 +0000 (01:06 -0800)]
tools/testing/cxl: Define a fixed volatile configuration to parse

[ Upstream commit 3d8f7ccaa611a743ae3a1e6f605346993d37c513 ]

Take two endpoints attached to the first switch on the first host-bridge
in the cxl_test topology and define a pre-initialized region. This is a
x2 interleave underneath a x1 CXL Window.

$ modprobe cxl_test
$ # cxl list -Ru
{
  "region":"region3",
  "resource":"0xf010000000",
  "size":"512.00 MiB (536.87 MB)",
  "interleave_ways":2,
  "interleave_granularity":4096,
  "decode_state":"commit"
}

Tested-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/167602000547.1924368.11613151863880268868.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Stable-dep-of: 98a04c7aced2 ("cxl/region: Fix x1 root-decoder granularity calculations")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agocxl/mem: Move devm_cxl_add_endpoint() from cxl_core to cxl_mem
Dan Williams [Thu, 1 Dec 2022 21:34:10 +0000 (13:34 -0800)]
cxl/mem: Move devm_cxl_add_endpoint() from cxl_core to cxl_mem

[ Upstream commit 7592d935b7ae71e2b4ff93830743c39a9d13d113 ]

tl;dr: Clean up an unnecessary export and enable cxl_test.

An RCD (Restricted CXL Device), in contrast to a typical CXL device in
a VH topology, obtains its component registers from the bottom half of
the associated CXL host bridge RCRB (Root Complex Register Block). In
turn this means that cxl_rcrb_to_component() needs to be called from
devm_cxl_add_endpoint().

Presently devm_cxl_add_endpoint() is part of the CXL core, but the only
user is the CXL mem module. Move it from cxl_core to cxl_mem to not only
get rid of an unnecessary export, but to also enable its call out to
cxl_rcrb_to_component(), in a subsequent patch, to be mocked by
cxl_test. Recall that cxl_test can only mock exported symbols, and since
cxl_rcrb_to_component() is itself inside the core, all callers must be
outside of cxl_core to allow cxl_test to mock it.

Reviewed-by: Robert Richter <rrichter@amd.com>
Link: https://lore.kernel.org/r/166993045072.1882361.13944923741276843683.stgit@dwillia2-xfh.jf.intel.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Stable-dep-of: 98a04c7aced2 ("cxl/region: Fix x1 root-decoder granularity calculations")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agocxl: Unify debug messages when calling devm_cxl_add_port()
Robert Richter [Tue, 18 Oct 2022 13:23:31 +0000 (15:23 +0200)]
cxl: Unify debug messages when calling devm_cxl_add_port()

[ Upstream commit f3cd264c4ec1ab9b8918f3b083cfc13c5e7c26b7 ]

CXL ports are added in a couple of code paths using devm_cxl_add_port().
Debug messages are individually generated, but are incomplete and
inconsistent. Change this by moving its generation to
devm_cxl_add_port(). This unifies the messages and reduces code
duplication.  Also, generate messages on failure. Use a
__devm_cxl_add_port() wrapper to keep the readability of the error
exits.

Signed-off-by: Robert Richter <rrichter@amd.com>
Link: https://lore.kernel.org/r/20221018132341.76259-4-rrichter@amd.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Stable-dep-of: 98a04c7aced2 ("cxl/region: Fix x1 root-decoder granularity calculations")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agoi3c: master: svc: fix random hot join failure since timeout error
Frank Li [Mon, 23 Oct 2023 16:16:58 +0000 (12:16 -0400)]
i3c: master: svc: fix random hot join failure since timeout error

[ Upstream commit 9aaeef113c55248ecf3ab941c2e4460aaa8b8b9a ]

master side report:
  silvaco-i3c-master 44330000.i3c-master: Error condition: MSTATUS 0x020090c7, MERRWARN 0x00100000

BIT 20: TIMEOUT error
  The module has stalled too long in a frame. This happens when:
  - The TX FIFO or RX FIFO is not handled and the bus is stuck in the
middle of a message,
  - No STOP was issued and between messages,
  - IBI manual is used and no decision was made.
  The maximum stall period is 100 μs.

This can be considered as being just a warning as the system IRQ latency
can easily be greater than 100us.

Fixes: dd3c52846d59 ("i3c: master: svc: Add Silvaco I3C master driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20231023161658.3890811-7-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agoi3c: master: svc: add NACK check after start byte sent
Clark Wang [Wed, 17 May 2023 03:30:30 +0000 (11:30 +0800)]
i3c: master: svc: add NACK check after start byte sent

[ Upstream commit 49b472ebc61de3d4aa7cc57539246bb39f6c5128 ]

Add NACK check after start byte is sent.
It is possible to detect early that a device is not on the bus
and avoid invalid transmissions thereafter.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230517033030.3068085-3-xiaoning.wang@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Stable-dep-of: 9aaeef113c55 ("i3c: master: svc: fix random hot join failure since timeout error")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agocxl/region: Do not try to cleanup after cxl_region_setup_targets() fails
Jim Harris [Wed, 11 Oct 2023 14:51:31 +0000 (14:51 +0000)]
cxl/region: Do not try to cleanup after cxl_region_setup_targets() fails

[ Upstream commit 0718588c7aaa7a1510b4de972370535b61dddd0d ]

Commit 5e42bcbc3fef ("cxl/region: decrement ->nr_targets on error in
cxl_region_attach()") tried to avoid 'eiw' initialization errors when
->nr_targets exceeded 16, by just decrementing ->nr_targets when
cxl_region_setup_targets() failed.

Commit 86987c766276 ("cxl/region: Cleanup target list on attach error")
extended that cleanup to also clear cxled->pos and p->targets[pos]. The
initialization error was incidentally fixed separately by:
Commit 8d4285425714 ("cxl/region: Fix port setup uninitialized variable
warnings") which was merged a few days after 5e42bcbc3fef.

But now the original cleanup when cxl_region_setup_targets() fails
prevents endpoint and switch decoder resources from being reused:

1) the cleanup does not set the decoder's region to NULL, which results
   in future dpa_size_store() calls returning -EBUSY
2) the decoder is not properly freed, which results in future commit
   errors associated with the upstream switch

Now that the initialization errors were fixed separately, the proper
cleanup for this case is to just return immediately. Then the resources
associated with this target get cleanup up as normal when the failed
region is deleted.

The ->nr_targets decrement in the error case also helped prevent
a p->targets[] array overflow, so add a new check to prevent against
that overflow.

Tested by trying to create an invalid region for a 2 switch * 2 endpoint
topology, and then following up with creating a valid region.

Fixes: 5e42bcbc3fef ("cxl/region: decrement ->nr_targets on error in cxl_region_attach()")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jim Harris <jim.harris@samsung.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/169703589120.1202031.14696100866518083806.stgit@bgt-140510-bm03.eng.stellus.in
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agocxl/region: Move region-position validation to a helper
Dan Williams [Fri, 10 Feb 2023 09:06:15 +0000 (01:06 -0800)]
cxl/region: Move region-position validation to a helper

[ Upstream commit 9995576cef48dcbb0ba3de068292ed14f72fa0eb ]

In preparation for region autodiscovery, that needs all devices
discovered before their relative position in the region can be
determined, consolidate all position dependent validation in a helper.

Recall that in the on-demand region creation flow the end-user picks the
position of a given endpoint decoder in a region. In the autodiscovery
case the position of an endpoint decoder can only be determined after
all other endpoint decoders that claim to decode the region's address
range have been enumerated and attached. So, in the autodiscovery case
endpoint decoders may be attached before their relative position is
known. Once all decoders arrive, then positions can be determined and
validated with cxl_region_validate_position() the same as user initiated
on-demand creation.

Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Tested-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/167601997584.1924368.4615769326126138969.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Stable-dep-of: 0718588c7aaa ("cxl/region: Do not try to cleanup after cxl_region_setup_targets() fails")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agocxl/region: Cleanup target list on attach error
Dan Williams [Fri, 10 Feb 2023 09:06:09 +0000 (01:06 -0800)]
cxl/region: Cleanup target list on attach error

[ Upstream commit 86987c766276acf1289700cd38bd6d5b5a167fea ]

Jonathan noticed that the target list setup is not unwound completely
upon error. Undo all the setup in the 'err_decrement:' exit path.

Fixes: 27b3f8d13830 ("cxl/region: Program target lists")
Reported-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Link: http://lore.kernel.org/r/20230208123031.00006990@Huawei.com
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/167601996980.1924368.390423634911157277.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Stable-dep-of: 0718588c7aaa ("cxl/region: Do not try to cleanup after cxl_region_setup_targets() fails")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agocxl/region: Validate region mode vs decoder mode
Dan Williams [Fri, 10 Feb 2023 09:05:51 +0000 (01:05 -0800)]
cxl/region: Validate region mode vs decoder mode

[ Upstream commit 1b9b7a6fd618239db47a83da39dff9e725a5865a ]

In preparation for a new region mode, do not, for example, allow
'ram' decoders to be assigned to 'pmem' regions and vice versa.

Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Gregory Price <gregory.price@memverge.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Fan Ni <fan.ni@samsung.com>
Link: https://lore.kernel.org/r/167601995111.1924368.7459128614177994602.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Stable-dep-of: 0718588c7aaa ("cxl/region: Do not try to cleanup after cxl_region_setup_targets() fails")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agodrm/amd/display: enable dsc_clk even if dsc_pg disabled
Muhammad Ahmed [Mon, 18 Sep 2023 20:52:54 +0000 (16:52 -0400)]
drm/amd/display: enable dsc_clk even if dsc_pg disabled

[ Upstream commit 40255df370e94d44f0f0a924400d68db0ee31bec ]

[why]
need to enable dsc_clk regardless dsc_pg

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Muhammad Ahmed <ahmed.ahmed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agoBluetooth: btusb: Add 0bda:b85b for Fn-Link RTL8852BE
Guan Wentao [Thu, 12 Oct 2023 11:21:17 +0000 (19:21 +0800)]
Bluetooth: btusb: Add 0bda:b85b for Fn-Link RTL8852BE

[ Upstream commit da06ff1f585ea784c79f80e7fab0e0c4ebb49c1c ]

Add PID/VID 0bda:b85b for Realtek RTL8852BE USB bluetooth part.
The PID/VID was reported by the patch last year. [1]
Some SBCs like rockpi 5B A8 module contains the device.
And it`s founded in website. [2] [3]

Here is the device tables in /sys/kernel/debug/usb/devices .

T:  Bus=07 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
D:  Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0bda ProdID=b85b Rev= 0.00
S:  Manufacturer=Realtek
S:  Product=Bluetooth Radio
S:  SerialNumber=00e04c000001
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Link: https://lore.kernel.org/all/20220420052402.19049-1-tangmeng@uniontech.com/
Link: https://forum.radxa.com/t/bluetooth-on-ubuntu/13051/4
Link: https://ubuntuforums.org/showthread.php?t=2489527
Cc: stable@vger.kernel.org
Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Signed-off-by: Guan Wentao <guanwentao@uniontech.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agoBluetooth: btusb: Add RTW8852BE device 13d3:3570 to device tables
Masum Reza [Sun, 24 Sep 2023 11:16:55 +0000 (16:46 +0530)]
Bluetooth: btusb: Add RTW8852BE device 13d3:3570 to device tables

[ Upstream commit 02be109d3a405dbc4d53fb4b4473d7a113548088 ]

This device is used in TP-Link TX20E WiFi+Bluetooth adapter.

Relevant information in /sys/kernel/debug/usb/devices
about the Bluetooth device is listed as the below.

T:  Bus=01 Lev=01 Prnt=01 Port=08 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
D:  Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=13d3 ProdID=3570 Rev= 0.00
S:  Manufacturer=Realtek
S:  Product=Bluetooth Radio
S:  SerialNumber=00e04c000001
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Masum Reza <masumrezarock100@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Stable-dep-of: da06ff1f585e ("Bluetooth: btusb: Add 0bda:b85b for Fn-Link RTL8852BE")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agobluetooth: Add device 13d3:3571 to device tables
Larry Finger [Thu, 23 Mar 2023 00:52:03 +0000 (19:52 -0500)]
bluetooth: Add device 13d3:3571 to device tables

[ Upstream commit 069f534247bb6db4f8c2c2ea8e9155abf495c37e ]

This device is part of a Realtek RTW8852BE chip. The device table is as follows:

T:  Bus=03 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
D:  Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=13d3 ProdID=3571 Rev= 0.00
S:  Manufacturer=Realtek
S:  Product=Bluetooth Radio
S:  SerialNumber=00e04c000001
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Stable-dep-of: da06ff1f585e ("Bluetooth: btusb: Add 0bda:b85b for Fn-Link RTL8852BE")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agobluetooth: Add device 0bda:887b to device tables
Larry Finger [Thu, 23 Mar 2023 00:52:02 +0000 (19:52 -0500)]
bluetooth: Add device 0bda:887b to device tables

[ Upstream commit 730a1d1a93a3e30c3723f87af97a8517334b2203 ]

This device is part of a Realtek RTW8852BE chip.

The device table entry is as follows:

T:  Bus=03 Lev=01 Prnt=01 Port=12 Cnt=02 Dev#=  3 Spd=12   MxCh= 0
D:  Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0bda ProdID=887b Rev= 0.00
S:  Manufacturer=Realtek
S:  Product=Bluetooth Radio
S:  SerialNumber=00e04c000001
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Stable-dep-of: da06ff1f585e ("Bluetooth: btusb: Add 0bda:b85b for Fn-Link RTL8852BE")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agoBluetooth: btusb: Add Realtek RTL8852BE support ID 0x0cb8:0xc559
Artem Lukyanov [Wed, 23 Nov 2022 08:10:05 +0000 (11:10 +0300)]
Bluetooth: btusb: Add Realtek RTL8852BE support ID 0x0cb8:0xc559

[ Upstream commit 393b4916b7b5b94faf5c6a7c68df1c62d17e4f38 ]

Add the support ID(0x0cb8, 0xc559) to usb_device_id table for
Realtek RTL8852BE.

The device info from /sys/kernel/debug/usb/devices as below.

T:  Bus=03 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
D:  Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0cb8 ProdID=c559 Rev= 0.00
S:  Manufacturer=Realtek
S:  Product=Bluetooth Radio
S:  SerialNumber=00e04c000001
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Artem Lukyanov <dukzcry@ya.ru>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Stable-dep-of: da06ff1f585e ("Bluetooth: btusb: Add 0bda:b85b for Fn-Link RTL8852BE")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agoclk: visconti: Fix undefined behavior bug in struct visconti_pll_provider
Gustavo A. R. Silva [Mon, 16 Oct 2023 22:05:27 +0000 (16:05 -0600)]
clk: visconti: Fix undefined behavior bug in struct visconti_pll_provider

[ Upstream commit 5ad1e217a2b23aa046b241183bd9452d259d70d0 ]

`struct clk_hw_onecell_data` is a flexible structure, which means that
it contains flexible-array member at the bottom, in this case array
`hws`:

include/linux/clk-provider.h:
1380 struct clk_hw_onecell_data {
1381         unsigned int num;
1382         struct clk_hw *hws[] __counted_by(num);
1383 };

This could potentially lead to an overwrite of the objects following
`clk_data` in `struct visconti_pll_provider`, in this case
`struct device_node *node;`, at run-time:

drivers/clk/visconti/pll.h:
 16 struct visconti_pll_provider {
 17         void __iomem *reg_base;
 18         struct clk_hw_onecell_data clk_data;
 19         struct device_node *node;
 20 };

Notice that a total of 56 bytes are allocated for flexible-array `hws`
at line 328. See below:

include/dt-bindings/clock/toshiba,tmpv770x.h:
 14 #define TMPV770X_NR_PLL 7

drivers/clk/visconti/pll-tmpv770x.c:
 69 ctx = visconti_init_pll(np, reg_base, TMPV770X_NR_PLL);

drivers/clk/visconti/pll.c:
321 struct visconti_pll_provider * __init visconti_init_pll(struct device_node *np,
322                                                         void __iomem *base,
323                                                         unsigned long nr_plls)
324 {
325         struct visconti_pll_provider *ctx;
...
328         ctx = kzalloc(struct_size(ctx, clk_data.hws, nr_plls), GFP_KERNEL);

`struct_size(ctx, clk_data.hws, nr_plls)` above translates to
sizeof(struct visconti_pll_provider) + sizeof(struct clk_hw *) * 7 ==
24 + 8 * 7 == 24 + 56
  ^^^^
   |
allocated bytes for flex array `hws`

$ pahole -C visconti_pll_provider drivers/clk/visconti/pll.o
struct visconti_pll_provider {
void *                     reg_base;             /*     0     8 */
struct clk_hw_onecell_data clk_data;             /*     8     8 */
struct device_node *       node;                 /*    16     8 */

/* size: 24, cachelines: 1, members: 3 */
/* last cacheline: 24 bytes */
};

And then, after the allocation, some data is written into all members
of `struct visconti_pll_provider`:

332         for (i = 0; i < nr_plls; ++i)
333                 ctx->clk_data.hws[i] = ERR_PTR(-ENOENT);
334
335         ctx->node = np;
336         ctx->reg_base = base;
337         ctx->clk_data.num = nr_plls;

Fix all these by placing the declaration of object `clk_data` at the
end of `struct visconti_pll_provider`. Also, add a comment to make it
clear that this object must always be last in the structure, and
prevent this bug from being introduced again in the future.

-Wflex-array-member-not-at-end is coming in GCC-14, and we are getting
ready to enable it globally.

Fixes: b4cbe606dc36 ("clk: visconti: Add support common clock driver and reset driver")
Cc: stable@vger.kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/57a831d94ee2b3889b11525d4ad500356f89576f.1697492890.git.gustavoars@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agoclk: visconti: remove unused visconti_pll_provider::regmap
Dario Binacchi [Thu, 2 Mar 2023 20:50:28 +0000 (21:50 +0100)]
clk: visconti: remove unused visconti_pll_provider::regmap

[ Upstream commit 7e626a080bb2db47c27c29fea569ff18afec52ed ]

Field regmap of struct visconti_pll_provider is never used. Remove it.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/r/20230302205028.2539197-1-dario.binacchi@amarulasolutions.com
Acked-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Stable-dep-of: 5ad1e217a2b2 ("clk: visconti: Fix undefined behavior bug in struct visconti_pll_provider")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agocpufreq: stats: Fix buffer overflow detection in trans_stats()
Christian Marangi [Tue, 24 Oct 2023 18:30:14 +0000 (20:30 +0200)]
cpufreq: stats: Fix buffer overflow detection in trans_stats()

[ Upstream commit ea167a7fc2426f7685c3735e104921c1a20a6d3f ]

Commit 3c0897c180c6 ("cpufreq: Use scnprintf() for avoiding potential
buffer overflow") switched from snprintf to the more secure scnprintf
but never updated the exit condition for PAGE_SIZE.

As the commit say and as scnprintf document, what scnprintf returns what
is actually written not counting the '\0' end char. This results in the
case of len exceeding the size, len set to PAGE_SIZE - 1, as it can be
written at max PAGE_SIZE - 1 (as '\0' is not counted)

Because of len is never set to PAGE_SIZE, the function never break early,
never prints the warning and never return -EFBIG.

Fix this by changing the condition to PAGE_SIZE - 1 to correctly trigger
the error.

Cc: 5.10+ <stable@vger.kernel.org> # 5.10+
Fixes: 3c0897c180c6 ("cpufreq: Use scnprintf() for avoiding potential buffer overflow")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agopmdomain: imx: Make imx pgc power domain also set the fwnode
Pengfei Li [Fri, 20 Oct 2023 18:59:49 +0000 (02:59 +0800)]
pmdomain: imx: Make imx pgc power domain also set the fwnode

[ Upstream commit 374de39d38f97b0e58cfee88da590b2d056ccf7f ]

Currently, The imx pgc power domain doesn't set the fwnode
pointer, which results in supply regulator device can't get
consumer imx pgc power domain device from fwnode when creating
a link.

This causes the driver core to instead try to create a link
between the parent gpc device of imx pgc power domain device and
supply regulator device. However, at this point, the gpc device
has already been bound, and the link creation will fail. So adding
the fwnode pointer to the imx pgc power domain device will fix
this issue.

Signed-off-by: Pengfei Li <pengfei.li_1@nxp.com>
Tested-by: Emil Kronborg <emil.kronborg@protonmail.com>
Fixes: 3fb16866b51d ("driver core: fw_devlink: Make cycle detection more robust")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231020185949.537083-1-pengfei.li_1@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agopmdomain: bcm: bcm2835-power: check if the ASB register is equal to enable
Maíra Canal [Tue, 24 Oct 2023 10:10:40 +0000 (07:10 -0300)]
pmdomain: bcm: bcm2835-power: check if the ASB register is equal to enable

[ Upstream commit 2e75396f1df61e1f1d26d0d703fc7292c4ae4371 ]

The commit c494a447c14e ("soc: bcm: bcm2835-power: Refactor ASB control")
refactored the ASB control by using a general function to handle both
the enable and disable. But this patch introduced a subtle regression:
we need to check if !!(readl(base + reg) & ASB_ACK) == enable, not just
check if (readl(base + reg) & ASB_ACK) == true.

Currently, this is causing an invalid register state in V3D when
unloading and loading the driver, because `bcm2835_asb_disable()` will
return -ETIMEDOUT and `bcm2835_asb_power_off()` will fail to disable the
ASB slave for V3D.

Fixes: c494a447c14e ("soc: bcm: bcm2835-power: Refactor ASB control")
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Stefan Wahren <stefan.wahren@i2se.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231024101251.6357-2-mcanal@igalia.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agoALSA: hda/realtek: Add quirks for HP Laptops
Stefan Binding [Wed, 15 Nov 2023 16:21:16 +0000 (16:21 +0000)]
ALSA: hda/realtek: Add quirks for HP Laptops

commit 5d639b60971f003d3a9b2b31f8ec73b0718b5d57 upstream.

These HP laptops use Realtek HDA codec combined with 2 or 4 CS35L41
Amplifiers using SPI with Internal Boost.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20231115162116.494968-3-sbinding@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoALSA: hda/realtek: Enable Mute LED on HP 255 G10
Matus Malych [Tue, 14 Nov 2023 13:35:25 +0000 (14:35 +0100)]
ALSA: hda/realtek: Enable Mute LED on HP 255 G10

commit b944aa9d86d5f782bfe5e51336434c960304839c upstream.

HP 255 G10 has a mute LED that can be made to work using quirk
ALC236_FIXUP_HP_MUTE_LED_COEFBIT2.
Enable already existing quirk - at correct line to keep order

Signed-off-by: Matus Malych <matus@malych.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20231114133524.11340-1-matus@malych.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoALSA: hda/realtek - Enable internal speaker of ASUS K6500ZC
Chandradeep Dey [Sat, 11 Nov 2023 18:25:49 +0000 (19:25 +0100)]
ALSA: hda/realtek - Enable internal speaker of ASUS K6500ZC

commit 713f040cd22285fcc506f40a0d259566e6758c3c upstream.

Apply the already existing quirk chain ALC294_FIXUP_ASUS_SPK to enable
the internal speaker of ASUS K6500ZC.

Signed-off-by: Chandradeep Dey <codesigning@chandradeepdey.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/NizcVHQ--3-9@chandradeepdey.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoALSA: hda/realtek - Add Dell ALC295 to pin fall back table
Kailang Yang [Fri, 10 Nov 2023 07:16:06 +0000 (15:16 +0800)]
ALSA: hda/realtek - Add Dell ALC295 to pin fall back table

commit 4b21a669ca21ed8f24ef4530b2918be5730114de upstream.

Add ALC295 to pin fall back table.
Remove 5 pin quirks for Dell ALC295.
ALC295 was only support MIC2 for external MIC function.
ALC295 assigned model "ALC269_FIXUP_DELL1_MIC_NO_PRESENCE" for pin
fall back table.
It was assigned wrong model. So, let's remove it.

Fixes: fbc571290d9f ("ALSA: hda/realtek - Fixed Headphone Mic can't record on Dell platform")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/7c1998e873834df98d59bd7e0d08c72e@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoALSA: hda/realtek: Enable Mute LED on HP 255 G8
Eymen Yigit [Fri, 10 Nov 2023 15:07:15 +0000 (18:07 +0300)]
ALSA: hda/realtek: Enable Mute LED on HP 255 G8

commit 8384c0baf223e1c3bc7b1c711d80a4c6106d210e upstream.

This HP Notebook uses ALC236 codec with COEF 0x07 idx 1 controlling
the mute LED. Enable already existing quirk for this device.

Signed-off-by: Eymen Yigit <eymenyg01@gmail.com>
Cc: Luka Guzenko <l.guzenko@web.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20231110150715.5141-1-eymenyg01@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoALSA: info: Fix potential deadlock at disconnection
Takashi Iwai [Thu, 9 Nov 2023 14:19:54 +0000 (15:19 +0100)]
ALSA: info: Fix potential deadlock at disconnection

commit c7a60651953359f98dbf24b43e1bf561e1573ed4 upstream.

As reported recently, ALSA core info helper may cause a deadlock at
the forced device disconnection during the procfs operation.

The proc_remove() (that is called from the snd_card_disconnect()
helper) has a synchronization of the pending procfs accesses via
wait_for_completion().  Meanwhile, ALSA procfs helper takes the global
mutex_lock(&info_mutex) at both the proc_open callback and
snd_card_info_disconnect() helper.  Since the proc_open can't finish
due to the mutex lock, wait_for_completion() never returns, either,
hence it deadlocks.

TASK#1 TASK#2
proc_reg_open()
  takes use_pde()
snd_info_text_entry_open()
snd_card_disconnect()
snd_info_card_disconnect()
  takes mutex_lock(&info_mutex)
proc_remove()
wait_for_completion(unused_pde)
  ... waiting task#1 closes
mutex_lock(&info_mutex)
=> DEADLOCK

This patch is a workaround for avoiding the deadlock scenario above.

The basic strategy is to move proc_remove() call outside the mutex
lock.  proc_remove() can work gracefully without extra locking, and it
can delete the tree recursively alone.  So, we call proc_remove() at
snd_info_card_disconnection() at first, then delete the rest resources
recursively within the info_mutex lock.

After the change, the function snd_info_disconnect() doesn't do
disconnection by itself any longer, but it merely clears the procfs
pointer.  So rename the function to snd_info_clear_entries() for
avoiding confusion.

The similar change is applied to snd_info_free_entry(), too.  Since
the proc_remove() is called only conditionally with the non-NULL
entry->p, it's skipped after the snd_info_clear_entries() call.

Reported-by: Shinhyung Kang <s47.kang@samsung.com>
Closes: https://lore.kernel.org/r/664457955.21699345385931.JavaMail.epsvc@epcpadp4
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20231109141954.4283-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agobtrfs: zoned: wait for data BG to be finished on direct IO allocation
Naohiro Aota [Tue, 17 Oct 2023 08:00:31 +0000 (17:00 +0900)]
btrfs: zoned: wait for data BG to be finished on direct IO allocation

commit 776a838f1fa95670c1c1cf7109a898090b473fa3 upstream.

Running the fio command below on a ZNS device results in "Resource
temporarily unavailable" error.

  $ sudo fio --name=w --directory=/mnt --filesize=1GB --bs=16MB --numjobs=16 \
        --rw=write --ioengine=libaio --iodepth=128 --direct=1

  fio: io_u error on file /mnt/w.2.0: Resource temporarily unavailable: write offset=117440512, buflen=16777216
  fio: io_u error on file /mnt/w.2.0: Resource temporarily unavailable: write offset=134217728, buflen=16777216
  ...

This happens because -EAGAIN error returned from btrfs_reserve_extent()
called from btrfs_new_extent_direct() is spilling over to the userland.

btrfs_reserve_extent() returns -EAGAIN when there is no active zone
available. Then, the caller should wait for some other on-going IO to
finish a zone and retry the allocation.

This logic is already implemented for buffered write in cow_file_range(),
but it is missing for the direct IO counterpart. Implement the same logic
for it.

Reported-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Fixes: 2ce543f47843 ("btrfs: zoned: wait until zone is finished when allocation didn't progress")
CC: stable@vger.kernel.org # 6.1+
Tested-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoxfs: recovery should not clear di_flushiter unconditionally
Dave Chinner [Fri, 10 Nov 2023 04:33:14 +0000 (15:33 +1100)]
xfs: recovery should not clear di_flushiter unconditionally

commit 7930d9e103700cde15833638855b750715c12091 upstream.

Because on v3 inodes, di_flushiter doesn't exist. It overlaps with
zero padding in the inode, except when NREXT64=1 configurations are
in use and the zero padding is no longer padding but holds the 64
bit extent counter.

This manifests obviously on big endian platforms (e.g. s390) because
the log dinode is in host order and the overlap is the LSBs of the
extent count field. It is not noticed on little endian machines
because the overlap is at the MSB end of the extent count field and
we need to get more than 2^^48 extents in the inode before it
manifests. i.e. the heat death of the universe will occur before we
see the problem in little endian machines.

This is a zero-day issue for NREXT64=1 configuraitons on big endian
machines. Fix it by only clearing di_flushiter on v2 inodes during
recovery.

Fixes: 9b7d16e34bbe ("xfs: Introduce XFS_DIFLAG2_NREXT64 and associated helpers")
cc: stable@kernel.org # 5.19+
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agocifs: do not reset chan_max if multichannel is not supported at mount
Shyam Prasad N [Mon, 30 Oct 2023 11:00:10 +0000 (11:00 +0000)]
cifs: do not reset chan_max if multichannel is not supported at mount

commit 6e5e64c9477d58e73cb1a0e83eacad1f8df247cf upstream.

If the mount command has specified multichannel as a mount option,
but multichannel is found to be unsupported by the server at the time
of mount, we set chan_max to 1. Which means that the user needs to
remount the share if the server starts supporting multichannel.

This change removes this reset. What it means is that if the user
specified multichannel or max_channels during mount, and at this
time, multichannel is not supported, but the server starts supporting
it at a later point, the client will be capable of scaling out the
number of channels.

Cc: stable@vger.kernel.org
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agocifs: force interface update before a fresh session setup
Shyam Prasad N [Mon, 30 Oct 2023 11:00:11 +0000 (11:00 +0000)]
cifs: force interface update before a fresh session setup

commit d9a6d78096056a3cb5c5f07a730ab92f2f9ac4e6 upstream.

During a session reconnect, it is possible that the
server moved to another physical server (happens in case
of Azure files). So at this time, force a query of server
interfaces again (in case of multichannel session), such
that the secondary channels connect to the right
IP addresses (possibly updated now).

Cc: stable@vger.kernel.org
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agocifs: reconnect helper should set reconnect for the right channel
Shyam Prasad N [Mon, 30 Oct 2023 11:00:09 +0000 (11:00 +0000)]
cifs: reconnect helper should set reconnect for the right channel

commit c3326a61cdbf3ce1273d9198b6cbf90965d7e029 upstream.

We introduced a helper function to be used by non-cifsd threads to
mark the connection for reconnect. For multichannel, when only
a particular channel needs to be reconnected, this had a bug.

This change fixes that by marking that particular channel
for reconnect.

Fixes: dca65818c80c ("cifs: use a different reconnect helper for non-cifsd threads")
Cc: stable@vger.kernel.org
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agosmb: client: fix potential deadlock when releasing mids
Paulo Alcantara [Wed, 25 Oct 2023 17:58:35 +0000 (14:58 -0300)]
smb: client: fix potential deadlock when releasing mids

commit e6322fd177c6885a21dd4609dc5e5c973d1a2eb7 upstream.

All release_mid() callers seem to hold a reference of @mid so there is
no need to call kref_put(&mid->refcount, __release_mid) under
@server->mid_lock spinlock.  If they don't, then an use-after-free bug
would have occurred anyways.

By getting rid of such spinlock also fixes a potential deadlock as
shown below

CPU 0                                CPU 1
------------------------------------------------------------------
cifs_demultiplex_thread()            cifs_debug_data_proc_show()
 release_mid()
  spin_lock(&server->mid_lock);
                                     spin_lock(&cifs_tcp_ses_lock)
      spin_lock(&server->mid_lock)
  __release_mid()
   smb2_find_smb_tcon()
    spin_lock(&cifs_tcp_ses_lock) *deadlock*

Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agosmb: client: fix use-after-free bug in cifs_debug_data_proc_show()
Paulo Alcantara [Tue, 24 Oct 2023 16:49:15 +0000 (13:49 -0300)]
smb: client: fix use-after-free bug in cifs_debug_data_proc_show()

commit d328c09ee9f15ee5a26431f5aad7c9239fa85e62 upstream.

Skip SMB sessions that are being teared down
(e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show()
to avoid use-after-free in @ses.

This fixes the following GPF when reading from /proc/fs/cifs/DebugData
while mounting and umounting

  [ 816.251274] general protection fault, probably for non-canonical
  address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI
  ...
  [  816.260138] Call Trace:
  [  816.260329]  <TASK>
  [  816.260499]  ? die_addr+0x36/0x90
  [  816.260762]  ? exc_general_protection+0x1b3/0x410
  [  816.261126]  ? asm_exc_general_protection+0x26/0x30
  [  816.261502]  ? cifs_debug_tcon+0xbd/0x240 [cifs]
  [  816.261878]  ? cifs_debug_tcon+0xab/0x240 [cifs]
  [  816.262249]  cifs_debug_data_proc_show+0x516/0xdb0 [cifs]
  [  816.262689]  ? seq_read_iter+0x379/0x470
  [  816.262995]  seq_read_iter+0x118/0x470
  [  816.263291]  proc_reg_read_iter+0x53/0x90
  [  816.263596]  ? srso_alias_return_thunk+0x5/0x7f
  [  816.263945]  vfs_read+0x201/0x350
  [  816.264211]  ksys_read+0x75/0x100
  [  816.264472]  do_syscall_64+0x3f/0x90
  [  816.264750]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
  [  816.265135] RIP: 0033:0x7fd5e669d381

Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agosmb3: fix caching of ctime on setxattr
Steve French [Wed, 8 Nov 2023 03:38:13 +0000 (21:38 -0600)]
smb3: fix caching of ctime on setxattr

commit 5923d6686a100c2b4cabd4c2ca9d5a12579c7614 upstream.

Fixes xfstest generic/728 which had been failing due to incorrect
ctime after setxattr and removexattr

Update ctime on successful set of xattr

Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agosmb3: fix touch -h of symlink
Steve French [Mon, 16 Oct 2023 17:18:23 +0000 (12:18 -0500)]
smb3: fix touch -h of symlink

commit 475efd9808a3094944a56240b2711349e433fb66 upstream.

For example:
      touch -h -t 02011200 testfile
where testfile is a symlink would not change the timestamp, but
      touch -t 02011200 testfile
does work to change the timestamp of the target

Suggested-by: David Howells <dhowells@redhat.com>
Reported-by: Micah Veilleux <micah.veilleux@iba-group.com>
Closes: https://bugzilla.samba.org/show_bug.cgi?id=14476
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agosmb3: fix creating FIFOs when mounting with "sfu" mount option
Steve French [Fri, 20 Oct 2023 04:01:49 +0000 (23:01 -0500)]
smb3: fix creating FIFOs when mounting with "sfu" mount option

commit 72bc63f5e23a38b65ff2a201bdc11401d4223fa9 upstream.

Fixes some xfstests including generic/564 and generic/157

The "sfu" mount option can be useful for creating special files (character
and block devices in particular) but could not create FIFOs. It did
recognize existing empty files with the "system" attribute flag as FIFOs
but this is too general, so to support creating FIFOs more safely use a new
tag (but the same length as those for char and block devices ie "IntxLNK"
and "IntxBLK") "LnxFIFO" to indicate that the file should be treated as a
FIFO (when mounted with the "sfu").   For some additional context note that
"sfu" followed the way that "Services for Unix" on Windows handled these
special files (at least for character and block devices and symlinks),
which is different than newer Windows which can handle special files
as reparse points (which isn't an option to many servers).

Cc: stable@vger.kernel.org
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agofs: add ctime accessors infrastructure
Jeff Layton [Wed, 5 Jul 2023 18:58:10 +0000 (14:58 -0400)]
fs: add ctime accessors infrastructure

commit 9b6304c1d53745c300b86f202d0dcff395e2d2db upstream.

struct timespec64 has unused bits in the tv_nsec field that can be used
for other purposes. In future patches, we're going to change how the
inode->i_ctime is accessed in certain inodes in order to make use of
them. In order to do that safely though, we'll need to eradicate raw
accesses of the inode->i_ctime field from the kernel.

Add new accessor functions for the ctime that we use to replace them.

Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Message-Id: <20230705185812.579118-2-jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoxhci: Enable RPM on controllers that support low-power states
Basavaraj Natikar [Thu, 19 Oct 2023 10:29:20 +0000 (13:29 +0300)]
xhci: Enable RPM on controllers that support low-power states

commit a5d6264b638efeca35eff72177fd28d149e0764b upstream.

Use the low-power states of the underlying platform to enable runtime PM.
If the platform doesn't support runtime D3, then enabling default RPM will
result in the controller malfunctioning, as in the case of hotplug devices
not being detected because of a failed interrupt generation.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20231019102924.2797346-16-mathias.nyman@linux.intel.com
Cc: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoparisc/power: Fix power soft-off when running on qemu
Helge Deller [Fri, 17 Nov 2023 15:43:52 +0000 (16:43 +0100)]
parisc/power: Fix power soft-off when running on qemu

commit 6ad6e15a9c46b8f0932cd99724f26f3db4db1cdf upstream.

Firmware returns the physical address of the power switch,
so need to use gsc_writel() instead of direct memory access.

Fixes: d0c219472980 ("parisc/power: Add power soft-off when running on qemu")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoparisc/pgtable: Do not drop upper 5 address bits of physical address
Helge Deller [Tue, 7 Nov 2023 13:33:32 +0000 (14:33 +0100)]
parisc/pgtable: Do not drop upper 5 address bits of physical address

commit 166b0110d1ee53290bd11618df6e3991c117495a upstream.

When calculating the pfn for the iitlbt/idtlbt instruction, do not
drop the upper 5 address bits. This doesn't seem to have an effect
on physical hardware which uses less physical address bits, but in
qemu the missing bits are visible.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoparisc: Prevent booting 64-bit kernels on PA1.x machines
Helge Deller [Fri, 10 Nov 2023 15:13:15 +0000 (16:13 +0100)]
parisc: Prevent booting 64-bit kernels on PA1.x machines

commit a406b8b424fa01f244c1aab02ba186258448c36b upstream.

Bail out early with error message when trying to boot a 64-bit kernel on
32-bit machines. This fixes the previous commit to include the check for
true 64-bit kernels as well.

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 591d2108f3abc ("parisc: Add runtime check to prevent PA2.0 kernels on PA1.x machines")
Cc: <stable@vger.kernel.org> # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoi3c: master: svc: fix SDA keep low when polling IBIWON timeout happen
Frank Li [Mon, 23 Oct 2023 16:16:57 +0000 (12:16 -0400)]
i3c: master: svc: fix SDA keep low when polling IBIWON timeout happen

commit dfd7cd6aafdb1f5ba93828e97e56b38304b23a05 upstream.

Upon IBIWON timeout, the SDA line will always be kept low if we don't emit
a stop. Calling svc_i3c_master_emit_stop() there will let the bus return to
idle state.

Fixes: dd3c52846d59 ("i3c: master: svc: Add Silvaco I3C master driver")
Cc: <stable@vger.kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20231023161658.3890811-6-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoi3c: master: svc: fix check wrong status register in irq handler
Frank Li [Mon, 23 Oct 2023 16:16:56 +0000 (12:16 -0400)]
i3c: master: svc: fix check wrong status register in irq handler

commit 225d5ef048c4ed01a475c95d94833bd7dd61072d upstream.

svc_i3c_master_irq_handler() wrongly checks register SVC_I3C_MINTMASKED. It
should be SVC_I3C_MSTATUS.

Fixes: dd3c52846d59 ("i3c: master: svc: Add Silvaco I3C master driver")
Cc: <stable@vger.kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20231023161658.3890811-5-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoi3c: master: svc: fix ibi may not return mandatory data byte
Frank Li [Mon, 23 Oct 2023 16:16:55 +0000 (12:16 -0400)]
i3c: master: svc: fix ibi may not return mandatory data byte

commit c85e209b799f12d18a90ae6353b997b1bb1274a5 upstream.

MSTATUS[RXPEND] is only updated after the data transfer cycle started. This
creates an issue when the I3C clock is slow, and the CPU is running fast
enough that MSTATUS[RXPEND] may not be updated when the code reaches
checking point. As a result, mandatory data can be missed.

Add a wait for MSTATUS[COMPLETE] to ensure that all mandatory data is
already in FIFO. It also works without mandatory data.

Fixes: dd3c52846d59 ("i3c: master: svc: Add Silvaco I3C master driver")
Cc: <stable@vger.kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20231023161658.3890811-4-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoi3c: master: svc: fix wrong data return when IBI happen during start frame
Frank Li [Mon, 23 Oct 2023 16:16:54 +0000 (12:16 -0400)]
i3c: master: svc: fix wrong data return when IBI happen during start frame

commit 5e5e3c92e748a6d859190e123b9193cf4911fcca upstream.

     ┌─────┐     ┏──┐  ┏──┐  ┏──┐  ┏──┐  ┏──┐  ┏──┐  ┏──┐  ┏──┐  ┌─────
SCL: ┘     └─────┛  └──┛  └──┛  └──┛  └──┛  └──┛  └──┛  └──┛  └──┘
     ───┐                       ┌─────┐     ┌─────┐     ┌───────────┐
SDA:    └───────────────────────┘     └─────┘     └─────┘           └─────
     xxx╱    ╲╱                                        ╲╱    ╲╱    ╲╱    ╲
   : xxx╲IBI ╱╲               Addr(0x0a)               ╱╲ RW ╱╲NACK╱╲ S  ╱

If an In-Band Interrupt (IBI) occurs and IBI work thread is not immediately
scheduled, when svc_i3c_master_priv_xfers() initiates the I3C transfer and
attempts to send address 0x7e, the target interprets it as an
IBI handler and returns the target address 0x0a.

However, svc_i3c_master_priv_xfers() does not handle this case and proceeds
with other transfers, resulting in incorrect data being returned.

Add IBIWON check in svc_i3c_master_xfer(). In case this situation occurs,
return a failure to the driver.

Fixes: dd3c52846d59 ("i3c: master: svc: Add Silvaco I3C master driver")
Cc: <stable@vger.kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20231023161658.3890811-3-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoi3c: master: svc: fix race condition in ibi work thread
Frank Li [Mon, 23 Oct 2023 16:16:53 +0000 (12:16 -0400)]
i3c: master: svc: fix race condition in ibi work thread

commit 6bf3fc268183816856c96b8794cd66146bc27b35 upstream.

The ibi work thread operates asynchronously with other transfers, such as
svc_i3c_master_priv_xfers(). Introduce mutex protection to ensure the
completion of the entire i3c/i2c transaction.

Fixes: dd3c52846d59 ("i3c: master: svc: Add Silvaco I3C master driver")
Cc: <stable@vger.kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20231023161658.3890811-2-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoi3c: master: cdns: Fix reading status register
Joshua Yeong [Wed, 13 Sep 2023 03:17:45 +0000 (11:17 +0800)]
i3c: master: cdns: Fix reading status register

commit 4bd8405257da717cd556f99e5fb68693d12c9766 upstream.

IBIR_DEPTH and CMDR_DEPTH should read from status0 instead of status1.

Cc: stable@vger.kernel.org
Fixes: 603f2bee2c54 ("i3c: master: Add driver for Cadence IP")
Signed-off-by: Joshua Yeong <joshua.yeong@starfivetech.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230913031743.11439-2-joshua.yeong@starfivetech.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agomtd: cfi_cmdset_0001: Byte swap OTP info
Linus Walleij [Fri, 20 Oct 2023 20:30:29 +0000 (22:30 +0200)]
mtd: cfi_cmdset_0001: Byte swap OTP info

commit 565fe150624ee77dc63a735cc1b3bff5101f38a3 upstream.

Currently the offset into the device when looking for OTP
bits can go outside of the address of the MTD NOR devices,
and if that memory isn't readable, bad things happen
on the IXP4xx (added prints that illustrate the problem before
the crash):

cfi_intelext_otp_walk walk OTP on chip 0 start at reg_prot_offset 0x00000100
ixp4xx_copy_from copy from 0x00000100 to 0xc880dd78
cfi_intelext_otp_walk walk OTP on chip 0 start at reg_prot_offset 0x12000000
ixp4xx_copy_from copy from 0x12000000 to 0xc880dd78
8<--- cut here ---
Unable to handle kernel paging request at virtual address db000000
[db000000] *pgd=00000000
(...)

This happens in this case because the IXP4xx is big endian and
the 32- and 16-bit fields in the struct cfi_intelext_otpinfo are not
properly byteswapped. Compare to how the code in read_pri_intelext()
byteswaps the fields in struct cfi_pri_intelext.

Adding a small byte swapping loop for the OTP in read_pri_intelext()
and the crash goes away.

The problem went unnoticed for many years until I enabled
CONFIG_MTD_OTP on the IXP4xx as well, triggering the bug.

Cc: stable@vger.kernel.org
Reviewed-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20231020-mtd-otp-byteswap-v4-1-0d132c06aa9d@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agomm/memory_hotplug: use pfn math in place of direct struct page manipulation
Zi Yan [Wed, 13 Sep 2023 20:12:46 +0000 (16:12 -0400)]
mm/memory_hotplug: use pfn math in place of direct struct page manipulation

commit 1640a0ef80f6d572725f5b0330038c18e98ea168 upstream.

When dealing with hugetlb pages, manipulating struct page pointers
directly can get to wrong struct page, since struct page is not guaranteed
to be contiguous on SPARSEMEM without VMEMMAP.  Use pfn calculation to
handle it properly.

Without the fix, a wrong number of page might be skipped. Since skip cannot be
negative, scan_movable_page() will end early and might miss a movable page with
-ENOENT. This might fail offline_pages(). No bug is reported. The fix comes
from code inspection.

Link: https://lkml.kernel.org/r/20230913201248.452081-4-zi.yan@sent.com
Fixes: eeb0efd071d8 ("mm,memory_hotplug: fix scan_movable_pages() for gigantic hugepages")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agomm/cma: use nth_page() in place of direct struct page manipulation
Zi Yan [Wed, 13 Sep 2023 20:12:44 +0000 (16:12 -0400)]
mm/cma: use nth_page() in place of direct struct page manipulation

commit 2e7cfe5cd5b6b0b98abf57a3074885979e187c1c upstream.

Patch series "Use nth_page() in place of direct struct page manipulation",
v3.

On SPARSEMEM without VMEMMAP, struct page is not guaranteed to be
contiguous, since each memory section's memmap might be allocated
independently.  hugetlb pages can go beyond a memory section size, thus
direct struct page manipulation on hugetlb pages/subpages might give wrong
struct page.  Kernel provides nth_page() to do the manipulation properly.
Use that whenever code can see hugetlb pages.

This patch (of 5):

When dealing with hugetlb pages, manipulating struct page pointers
directly can get to wrong struct page, since struct page is not guaranteed
to be contiguous on SPARSEMEM without VMEMMAP.  Use nth_page() to handle
it properly.

Without the fix, page_kasan_tag_reset() could reset wrong page tags,
causing a wrong kasan result.  No related bug is reported.  The fix
comes from code inspection.

Link: https://lkml.kernel.org/r/20230913201248.452081-1-zi.yan@sent.com
Link: https://lkml.kernel.org/r/20230913201248.452081-2-zi.yan@sent.com
Fixes: 2813b9c02962 ("kasan, mm, arm64: tag non slab memory allocated via pagealloc")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agos390/cmma: fix detection of DAT pages
Heiko Carstens [Tue, 24 Oct 2023 08:15:19 +0000 (10:15 +0200)]
s390/cmma: fix detection of DAT pages

commit 44d93045247661acbd50b1629e62f415f2747577 upstream.

If the cmma no-dat feature is available the kernel page tables are walked
to identify and mark all pages which are used for address translation (all
region, segment, and page tables). In a subsequent loop all other pages are
marked as "no-dat" pages with the ESSA instruction.

This information is visible to the hypervisor, so that the hypervisor can
optimize purging of guest TLB entries. The initial loop however is
incorrect: only the first three of the four pages which belong to segment
and region tables will be marked as being used for DAT. The last page is
incorrectly marked as no-dat.

This can result in incorrect guest TLB flushes.

Fix this by simply marking all four pages.

Cc: <stable@vger.kernel.org>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agodmaengine: stm32-mdma: correct desc prep when channel running
Alain Volmat [Mon, 9 Oct 2023 08:24:50 +0000 (10:24 +0200)]
dmaengine: stm32-mdma: correct desc prep when channel running

commit 03f25d53b145bc2f7ccc82fc04e4482ed734f524 upstream.

In case of the prep descriptor while the channel is already running, the
CCR register value stored into the channel could already have its EN bit
set.  This would lead to a bad transfer since, at start transfer time,
enabling the channel while other registers aren't yet properly set.
To avoid this, ensure to mask the CCR_EN bit when storing the ccr value
into the mdma channel structure.

Fixes: a4ffb13c8946 ("dmaengine: Add STM32 MDMA driver")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Cc: stable@vger.kernel.org
Tested-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://lore.kernel.org/r/20231009082450.452877-1-amelie.delaunay@foss.st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agomcb: fix error handling for different scenarios when parsing
Sanjuán García, Jorge [Thu, 19 Oct 2023 14:15:34 +0000 (14:15 +0000)]
mcb: fix error handling for different scenarios when parsing

commit 63ba2d07b4be72b94216d20561f43e1150b25d98 upstream.

chameleon_parse_gdd() may fail for different reasons and end up
in the err tag. Make sure we at least always free the mcb_device
allocated with mcb_alloc_dev().

If mcb_device_register() fails, make sure to give up the reference
in the same place the device was added.

Fixes: 728ac3389296 ("mcb: mcb-parse: fix error handing in chameleon_parse_gdd()")
Cc: stable <stable@kernel.org>
Reviewed-by: Jose Javier Rodriguez Barbarin <JoseJavier.Rodriguez@duagon.com>
Signed-off-by: Jorge Sanjuan Garcia <jorge.sanjuangarcia@duagon.com>
Link: https://lore.kernel.org/r/20231019141434.57971-2-jorge.sanjuangarcia@duagon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agodriver core: Release all resources during unbind before updating device links
Saravana Kannan [Wed, 18 Oct 2023 01:38:50 +0000 (18:38 -0700)]
driver core: Release all resources during unbind before updating device links

commit 2e84dc37920012b458e9458b19fc4ed33f81bc74 upstream.

This commit fixes a bug in commit 9ed9895370ae ("driver core: Functional
dependencies tracking support") where the device link status was
incorrectly updated in the driver unbind path before all the device's
resources were released.

Fixes: 9ed9895370ae ("driver core: Functional dependencies tracking support")
Cc: stable <stable@kernel.org>
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Closes: https://lore.kernel.org/all/20231014161721.f4iqyroddkcyoefo@pengutronix.de/
Signed-off-by: Saravana Kannan <saravanak@google.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Matti Vaittinen <mazziesaccount@gmail.com>
Cc: James Clark <james.clark@arm.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231018013851.3303928-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agotracing: Have the user copy of synthetic event address use correct context
Steven Rostedt (Google) [Tue, 31 Oct 2023 19:10:33 +0000 (15:10 -0400)]
tracing: Have the user copy of synthetic event address use correct context

commit 4f7969bcd6d33042d62e249b41b5578161e4c868 upstream.

A synthetic event is created by the synthetic event interface that can
read both user or kernel address memory. In reality, it reads any
arbitrary memory location from within the kernel. If the address space is
in USER (where CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE is set) then
it uses strncpy_from_user_nofault() to copy strings otherwise it uses
strncpy_from_kernel_nofault().

But since both functions use the same variable there's no annotation to
what that variable is (ie. __user). This makes sparse complain.

Quiet sparse by typecasting the strncpy_from_user_nofault() variable to
a __user pointer.

Link: https://lore.kernel.org/linux-trace-kernel/20231031151033.73c42e23@gandalf.local.home
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Fixes: 0934ae9977c2 ("tracing: Fix reading strings from synthetic events");
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202311010013.fm8WTxa5-lkp@intel.com/
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoi2c: core: Run atomic i2c xfer when !preemptible
Benjamin Bara [Sat, 15 Jul 2023 07:53:24 +0000 (09:53 +0200)]
i2c: core: Run atomic i2c xfer when !preemptible

commit aa49c90894d06e18a1ee7c095edbd2f37c232d02 upstream.

Since bae1d3a05a8b, i2c transfers are non-atomic if preemption is
disabled. However, non-atomic i2c transfers require preemption (e.g. in
wait_for_completion() while waiting for the DMA).

panic() calls preempt_disable_notrace() before calling
emergency_restart(). Therefore, if an i2c device is used for the
restart, the xfer should be atomic. This avoids warnings like:

[   12.667612] WARNING: CPU: 1 PID: 1 at kernel/rcu/tree_plugin.h:318 rcu_note_context_switch+0x33c/0x6b0
[   12.676926] Voluntary context switch within RCU read-side critical section!
...
[   12.742376]  schedule_timeout from wait_for_completion_timeout+0x90/0x114
[   12.749179]  wait_for_completion_timeout from tegra_i2c_wait_completion+0x40/0x70
...
[   12.994527]  atomic_notifier_call_chain from machine_restart+0x34/0x58
[   13.001050]  machine_restart from panic+0x2a8/0x32c

Use !preemptible() instead, which is basically the same check as
pre-v5.2.

Fixes: bae1d3a05a8b ("i2c: core: remove use of in_atomic()")
Cc: stable@vger.kernel.org # v5.2+
Suggested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Acked-by: Wolfram Sang <wsa@kernel.org>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benjamin Bara <benjamin.bara@skidata.com>
Link: https://lore.kernel.org/r/20230327-tegra-pmic-reboot-v7-2-18699d5dcd76@skidata.com
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agokernel/reboot: emergency_restart: Set correct system_state
Benjamin Bara [Sat, 15 Jul 2023 07:53:23 +0000 (09:53 +0200)]
kernel/reboot: emergency_restart: Set correct system_state

commit 60466c067927abbcaff299845abd4b7069963139 upstream.

As the emergency restart does not call kernel_restart_prepare(), the
system_state stays in SYSTEM_RUNNING.

Since bae1d3a05a8b, this hinders i2c_in_atomic_xfer_mode() from becoming
active, and therefore might lead to avoidable warnings in the restart
handlers, e.g.:

[   12.667612] WARNING: CPU: 1 PID: 1 at kernel/rcu/tree_plugin.h:318 rcu_note_context_switch+0x33c/0x6b0
[   12.676926] Voluntary context switch within RCU read-side critical section!
...
[   12.742376]  schedule_timeout from wait_for_completion_timeout+0x90/0x114
[   12.749179]  wait_for_completion_timeout from tegra_i2c_wait_completion+0x40/0x70
...
[   12.994527]  atomic_notifier_call_chain from machine_restart+0x34/0x58
[   13.001050]  machine_restart from panic+0x2a8/0x32c

Avoid these by setting the correct system_state.

Fixes: bae1d3a05a8b ("i2c: core: remove use of in_atomic()")
Cc: stable@vger.kernel.org # v5.2+
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benjamin Bara <benjamin.bara@skidata.com>
Link: https://lore.kernel.org/r/20230327-tegra-pmic-reboot-v7-1-18699d5dcd76@skidata.com
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoquota: explicitly forbid quota files from being encrypted
Eric Biggers [Tue, 5 Sep 2023 00:32:27 +0000 (17:32 -0700)]
quota: explicitly forbid quota files from being encrypted

commit d3cc1b0be258191d6360c82ea158c2972f8d3991 upstream.

Since commit d7e7b9af104c ("fscrypt: stop using keyrings subsystem for
fscrypt_master_key"), xfstest generic/270 causes a WARNING when run on
f2fs with test_dummy_encryption in the mount options:

$ kvm-xfstests -c f2fs/encrypt generic/270
[...]
WARNING: CPU: 1 PID: 2453 at fs/crypto/keyring.c:240 fscrypt_destroy_keyring+0x1f5/0x260

The cause of the WARNING is that not all encrypted inodes have been
evicted before fscrypt_destroy_keyring() is called, which violates an
assumption.  This happens because the test uses an external quota file,
which gets automatically encrypted due to test_dummy_encryption.

Encryption of quota files has never really been supported.  On ext4,
ext4_quota_read() does not decrypt the data, so encrypted quota files
are always considered invalid on ext4.  On f2fs, f2fs_quota_read() uses
the pagecache, so trying to use an encrypted quota file gets farther,
resulting in the issue described above being possible.  But this was
never intended to be possible, and there is no use case for it.

Therefore, make the quota support layer explicitly reject using
IS_ENCRYPTED inodes when quotaon is attempted.

Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <20230905003227.326998-1-ebiggers@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agojbd2: fix potential data lost in recovering journal raced with synchronizing fs bdev
Zhihao Cheng [Tue, 19 Sep 2023 01:25:25 +0000 (09:25 +0800)]
jbd2: fix potential data lost in recovering journal raced with synchronizing fs bdev

commit 61187fce8600e8ef90e601be84f9d0f3222c1206 upstream.

JBD2 makes sure journal data is fallen on fs device by sync_blockdev(),
however, other process could intercept the EIO information from bdev's
mapping, which leads journal recovering successful even EIO occurs during
data written back to fs device.

We found this problem in our product, iscsi + multipath is chosen for block
device of ext4. Unstable network may trigger kpartx to rescan partitions in
device mapper layer. Detailed process is shown as following:

  mount          kpartx          irq
jbd2_journal_recover
 do_one_pass
  memcpy(nbh->b_data, obh->b_data) // copy data to fs dev from journal
  mark_buffer_dirty // mark bh dirty
         vfs_read
  generic_file_read_iter // dio
   filemap_write_and_wait_range
    __filemap_fdatawrite_range
     do_writepages
      block_write_full_folio
       submit_bh_wbc
            >>  EIO occurs in disk  <<
                     end_buffer_async_write
      mark_buffer_write_io_error
       mapping_set_error
        set_bit(AS_EIO, &mapping->flags) // set!
    filemap_check_errors
     test_and_clear_bit(AS_EIO, &mapping->flags) // clear!
 err2 = sync_blockdev
  filemap_write_and_wait
   filemap_check_errors
    test_and_clear_bit(AS_EIO, &mapping->flags) // false
 err2 = 0

Filesystem is mounted successfully even data from journal is failed written
into disk, and ext4/ocfs2 could become corrupted.

Fix it by comparing the wb_err state in fs block device before recovering
and after recovering.

A reproducer can be found in the kernel bugzilla referenced below.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217888
Cc: stable@vger.kernel.org
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230919012525.1783108-1-chengzhihao1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoASoC: codecs: wsa-macro: fix uninitialized stack variables with name prefix
Krzysztof Kozlowski [Tue, 3 Oct 2023 15:54:22 +0000 (17:54 +0200)]
ASoC: codecs: wsa-macro: fix uninitialized stack variables with name prefix

commit 72151ad0cba8a07df90130ff62c979520d71f23b upstream.

Driver compares widget name in wsa_macro_spk_boost_event() widget event
callback, however it does not handle component's name prefix.  This
leads to using uninitialized stack variables as registers and register
values.  Handle gracefully such case.

Fixes: 2c4066e5d428 ("ASoC: codecs: lpass-wsa-macro: add dapm widgets and route")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231003155422.801160-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agohid: lenovo: Resend all settings on reset_resume for compact keyboards
Jamie Lentin [Mon, 2 Oct 2023 15:09:14 +0000 (15:09 +0000)]
hid: lenovo: Resend all settings on reset_resume for compact keyboards

commit 2f2bd7cbd1d1548137b351040dc4e037d18cdfdc upstream.

The USB Compact Keyboard variant requires a reset_resume function to
restore keyboard configuration after a suspend in some situations. Move
configuration normally done on probe to lenovo_features_set_cptkbd(), then
recycle this for use on reset_resume.

Without, the keyboard and driver would end up in an inconsistent state,
breaking middle-button scrolling amongst other problems, and twiddling
sysfs values wouldn't help as the middle-button mode won't be set until
the driver is reloaded.

Tested on a USB and Bluetooth Thinkpad Compact Keyboard.

CC: stable@vger.kernel.org
Fixes: 94eefa271323 ("HID: lenovo: Use native middle-button mode for compact keyboards")
Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Link: https://lore.kernel.org/r/20231002150914.22101-1-martink@posteo.de
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoselftests/resctrl: Reduce failures due to outliers in MBA/MBM tests
Ilpo Järvinen [Mon, 2 Oct 2023 09:48:13 +0000 (12:48 +0300)]
selftests/resctrl: Reduce failures due to outliers in MBA/MBM tests

commit ef43c30858754d99373a63dff33280a9969b49bc upstream.

The initial value of 5% chosen for the maximum allowed percentage
difference between resctrl mbm value and IMC mbm value in

commit 06bd03a57f8c ("selftests/resctrl: Fix MBA/MBM results reporting
       format") was "randomly chosen value" (as admitted by the changelog).

When running tests in our lab across a large number platforms, 5%
difference upper bound for success seems a bit on the low side for the
MBA and MBM tests. Some platforms produce outliers that are slightly
above that, typically 6-7%, which leads MBA/MBM test frequently
failing.

Replace the "randomly chosen value" with a success bound that is based
on those measurements across large number of platforms by relaxing the
MBA/MBM success bound to 8%. The relaxed bound removes the failures due
the frequent outliers.

Fixed commit description style error during merge:
Shuah Khan <skhan@linuxfoundation.org>

Fixes: 06bd03a57f8c ("selftests/resctrl: Fix MBA/MBM results reporting format")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoselftests/resctrl: Move _GNU_SOURCE define into Makefile
Ilpo Järvinen [Mon, 2 Oct 2023 09:48:10 +0000 (12:48 +0300)]
selftests/resctrl: Move _GNU_SOURCE define into Makefile

commit 3a1e4a91aa454a1c589a9824d54179fdbfccde45 upstream.

_GNU_SOURCE is defined in resctrl.h. Defining _GNU_SOURCE has a large
impact on what gets defined when including headers either before or
after it. This can result in compile failures if .c file decides to
include a standard header file before resctrl.h.

It is safer to define _GNU_SOURCE in Makefile so it is always defined
regardless of in which order includes are done.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoselftests/resctrl: Remove duplicate feature check from CMT test
Ilpo Järvinen [Mon, 2 Oct 2023 09:48:09 +0000 (12:48 +0300)]
selftests/resctrl: Remove duplicate feature check from CMT test

commit 030b48fb2cf045dead8ee2c5ead560930044c029 upstream.

The test runner run_cmt_test() in resctrl_tests.c checks for CMT
feature and does not run cmt_resctrl_val() if CMT is not supported.
Then cmt_resctrl_val() also check is CMT is supported.

Remove the duplicated feature check for CMT from cmt_resctrl_val().

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agonetfilter: nf_tables: split async and sync catchall in two functions
Pablo Neira Ayuso [Tue, 21 Nov 2023 12:14:22 +0000 (13:14 +0100)]
netfilter: nf_tables: split async and sync catchall in two functions

[ Upstream commit 8837ba3e58ea1e3d09ae36db80b1e80853aada95 ]

list_for_each_entry_safe() does not work for the async case which runs
under RCU, therefore, split GC logic for catchall in two functions
instead, one for each of the sync and async GC variants.

The catchall sync GC variant never sees a _DEAD bit set on ever, thus,
this handling is removed in such case, moreover, allocate GC sync batch
via GFP_KERNEL.

Fixes: 93995bf4af2c ("netfilter: nf_tables: remove catchall element in GC sync path")
Reported-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agonetfilter: nf_tables: remove catchall element in GC sync path
Pablo Neira Ayuso [Tue, 21 Nov 2023 12:14:21 +0000 (13:14 +0100)]
netfilter: nf_tables: remove catchall element in GC sync path

[ Upstream commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 ]

The expired catchall element is not deactivated and removed from GC sync
path. This path holds mutex so just call nft_setelem_data_deactivate()
and nft_setelem_catchall_remove() before queueing the GC work.

Fixes: 4a9e12ea7e70 ("netfilter: nft_set_pipapo: call nft_trans_gc_queue_sync() in catchall GC")
Reported-by: lonial con <kongln9170@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
7 months agoima: detect changes to the backing overlay file
Mimi Zohar [Wed, 18 Oct 2023 18:47:02 +0000 (14:47 -0400)]
ima: detect changes to the backing overlay file

commit b836c4d29f2744200b2af41e14bf50758dddc818 upstream.

Commit 18b44bc5a672 ("ovl: Always reevaluate the file signature for
IMA") forced signature re-evaulation on every file access.

Instead of always re-evaluating the file's integrity, detect a change
to the backing file, by comparing the cached file metadata with the
backing file's metadata.  Verifying just the i_version has not changed
is insufficient.  In addition save and compare the i_ino and s_dev
as well.

Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Tested-by: Eric Snowberg <eric.snowberg@oracle.com>
Tested-by: Raul E Rangel <rrangel@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoima: annotate iint mutex to avoid lockdep false positive warnings
Amir Goldstein [Thu, 5 Oct 2023 11:15:58 +0000 (14:15 +0300)]
ima: annotate iint mutex to avoid lockdep false positive warnings

commit e044374a8a0a99e46f4e6d6751d3042b6d9cc12e upstream.

It is not clear that IMA should be nested at all, but as long is it
measures files both on overlayfs and on underlying fs, we need to
annotate the iint mutex to avoid lockdep false positives related to
IMA + overlayfs, same as overlayfs annotates the inode mutex.

Reported-and-tested-by: syzbot+b42fe626038981fb7bfa@syzkaller.appspotmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agomfd: qcom-spmi-pmic: Fix revid implementation
Johan Hovold [Tue, 3 Oct 2023 15:29:24 +0000 (17:29 +0200)]
mfd: qcom-spmi-pmic: Fix revid implementation

commit 7b439aaa62fee474a0d84d67a25f4984467e7b95 upstream.

The Qualcomm SPMI PMIC revid implementation is broken in multiple ways.

First, it assumes that just because the sibling base device has been
registered that means that it is also bound to a driver, which may not
be the case (e.g. due to probe deferral or asynchronous probe). This
could trigger a NULL-pointer dereference when attempting to access the
driver data of the unbound device.

Second, it accesses driver data of a sibling device directly and without
any locking, which means that the driver data may be freed while it is
being accessed (e.g. on driver unbind).

Third, it leaks a struct device reference to the sibling device which is
looked up using the spmi_device_from_of() every time a function (child)
device is calling the revid function (e.g. on probe).

Fix this mess by reimplementing the revid lookup so that it is done only
at probe of the PMIC device; the base device fetches the revid info from
the hardware, while any secondary SPMI device fetches the information
from the base device and caches it so that it can be accessed safely
from its children. If the base device has not been probed yet then probe
of a secondary device is deferred.

Fixes: e9c11c6e3a0e ("mfd: qcom-spmi-pmic: expose the PMIC revid information to clients")
Cc: stable@vger.kernel.org # 6.0
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Acked-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20231003152927.15000-3-johan+linaro@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agomfd: qcom-spmi-pmic: Fix reference leaks in revid helper
Johan Hovold [Tue, 3 Oct 2023 15:29:23 +0000 (17:29 +0200)]
mfd: qcom-spmi-pmic: Fix reference leaks in revid helper

commit a0fa44c261e448c531f9adb3a5189a3520f3e316 upstream.

The Qualcomm SPMI PMIC revid implementation is broken in multiple ways.

First, it totally ignores struct device_node reference counting and
leaks references to the parent bus node as well as each child it
iterates over using an open-coded for_each_child_of_node().

Second, it leaks references to each spmi device on the bus that it
iterates over by failing to drop the reference taken by the
spmi_device_from_of() helper.

Fix the struct device_node leaks by reimplementing the lookup using
for_each_child_of_node() and adding the missing reference count
decrements. Fix the sibling struct device leaks by dropping the
unnecessary lookups of devices with the wrong USID.

Note that this still leaves one struct device reference leak in case a
base device is found but it is not the parent of the device used for the
lookup. This will be addressed in a follow-on patch.

Fixes: e9c11c6e3a0e ("mfd: qcom-spmi-pmic: expose the PMIC revid information to clients")
Cc: stable@vger.kernel.org # 6.0
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Acked-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20231003152927.15000-2-johan+linaro@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoarm64: dts: qcom: ipq6018: Fix tcsr_mutex register size
Vignesh Viswanathan [Tue, 5 Sep 2023 09:55:34 +0000 (15:25 +0530)]
arm64: dts: qcom: ipq6018: Fix tcsr_mutex register size

commit 72fc3d58b87b0d622039c6299b89024fbb7b420f upstream.

IPQ6018's TCSR Mutex HW lock register has 32 locks of size 4KB each.
Total size of the TCSR Mutex registers is 128KB.

Fix size of the tcsr_mutex hwlock register to 0x20000.

Changes in v2:
 - Drop change to remove qcom,ipq6018-tcsr-mutex compatible string
 - Added Fixes and stable tags

Cc: stable@vger.kernel.org
Fixes: 5bf635621245 ("arm64: dts: ipq6018: Add a few device nodes")
Signed-off-by: Vignesh Viswanathan <quic_viswanat@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230905095535.1263113-2-quic_viswanat@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoACPI: FPDT: properly handle invalid FPDT subtables
Vasily Khoruzhick [Wed, 27 Sep 2023 19:50:02 +0000 (12:50 -0700)]
ACPI: FPDT: properly handle invalid FPDT subtables

commit a83c68a3bf7c418c9a46693c63c638852b0c1f4e upstream.

Buggy BIOSes may have invalid FPDT subtables, e.g. on my hardware:

S3PT subtable:

7F20FE30: 53 33 50 54 24 00 00 00-00 00 00 00 00 00 18 01  *S3PT$...........*
7F20FE40: 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*
7F20FE50: 00 00 00 00

Here the first record has zero length.

FBPT subtable:

7F20FE50:             46 42 50 54-3C 00 00 00 46 42 50 54  *....FBPT<...FBPT*
7F20FE60: 02 00 30 02 00 00 00 00-00 00 00 00 00 00 00 00  *..0.............*
7F20FE70: 2A A6 BC 6E 0B 00 00 00-1A 44 41 70 0B 00 00 00  **..n.....DAp....*
7F20FE80: 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*

And here FBPT table has FBPT signature repeated instead of the first
record.

Current code will be looping indefinitely due to zero length records, so
break out of the loop if record length is zero.

While we are here, add proper handling for fpdt_process_subtable()
failures.

Fixes: d1eb86e59be0 ("ACPI: tables: introduce support for FPDT table")
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
[ rjw: Comment edit, added empty code lines ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agofirmware: qcom_scm: use 64-bit calling convention only when client is 64-bit
Kathiravan Thirumoorthy [Mon, 25 Sep 2023 08:29:22 +0000 (13:59 +0530)]
firmware: qcom_scm: use 64-bit calling convention only when client is 64-bit

commit 3337a6fea25370d3d244ec6bb38c71ee86fcf837 upstream.

Per the "SMC calling convention specification", the 64-bit calling
convention can only be used when the client is 64-bit. Whereas the
32-bit calling convention can be used by either a 32-bit or a 64-bit
client.

Currently during SCM probe, irrespective of the client, 64-bit calling
convention is made, which is incorrect and may lead to the undefined
behaviour when the client is 32-bit. Let's fix it.

Cc: stable@vger.kernel.org
Fixes: 9a434cee773a ("firmware: qcom_scm: Dynamically support SMCCC and legacy conventions")
Reviewed-By: Elliot Berman <quic_eberman@quicinc.com>
Signed-off-by: Kathiravan Thirumoorthy <quic_kathirav@quicinc.com>
Link: https://lore.kernel.org/r/20230925-scm-v3-1-8790dff6a749@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoarm64: dts: qcom: ipq8074: Fix hwlock index for SMEM
Vignesh Viswanathan [Mon, 4 Sep 2023 17:25:14 +0000 (22:55 +0530)]
arm64: dts: qcom: ipq8074: Fix hwlock index for SMEM

commit 8a781d04e580705d36f7db07f5c80e748100b69d upstream.

SMEM uses lock index 3 of the TCSR Mutex hwlock for allocations
in SMEM region shared by the Host and FW.

Fix the SMEM hwlock index to 3 for IPQ8074.

Cc: stable@vger.kernel.org
Fixes: 42124b947e8e ("arm64: dts: qcom: ipq8074: add SMEM support")
Signed-off-by: Vignesh Viswanathan <quic_viswanat@quicinc.com>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230904172516.479866-4-quic_viswanat@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agobtrfs: don't arbitrarily slow down delalloc if we're committing
Josef Bacik [Mon, 18 Sep 2023 18:15:33 +0000 (14:15 -0400)]
btrfs: don't arbitrarily slow down delalloc if we're committing

commit 11aeb97b45ad2e0040cbb2a589bc403152526345 upstream.

We have a random schedule_timeout() if the current transaction is
committing, which seems to be a holdover from the original delalloc
reservation code.

Remove this, we have the proper flushing stuff, we shouldn't be hoping
for random timing things to make everything work.  This just induces
latency for no reason.

CC: stable@vger.kernel.org # 5.4+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agorcu: kmemleak: Ignore kmemleak false positives when RCU-freeing objects
Catalin Marinas [Sat, 30 Sep 2023 17:46:56 +0000 (17:46 +0000)]
rcu: kmemleak: Ignore kmemleak false positives when RCU-freeing objects

commit 5f98fd034ca6fd1ab8c91a3488968a0e9caaabf6 upstream.

Since the actual slab freeing is deferred when calling kvfree_rcu(), so
is the kmemleak_free() callback informing kmemleak of the object
deletion. From the perspective of the kvfree_rcu() caller, the object is
freed and it may remove any references to it. Since kmemleak does not
scan RCU internal data storing the pointer, it will report such objects
as leaks during the grace period.

Tell kmemleak to ignore such objects on the kvfree_call_rcu() path. Note
that the tiny RCU implementation does not have such issue since the
objects can be tracked from the rcu_ctrlblk structure.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Christoph Paasch <cpaasch@apple.com>
Closes: https://lore.kernel.org/all/F903A825-F05F-4B77-A2B5-7356282FBA2C@apple.com/
Cc: <stable@vger.kernel.org>
Tested-by: Christoph Paasch <cpaasch@apple.com>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoPM: hibernate: Clean up sync_read handling in snapshot_write_next()
Brian Geffon [Fri, 22 Sep 2023 16:07:04 +0000 (12:07 -0400)]
PM: hibernate: Clean up sync_read handling in snapshot_write_next()

commit d08970df1980476f27936e24d452550f3e9e92e1 upstream.

In snapshot_write_next(), sync_read is set and unset in three different
spots unnecessiarly. As a result there is a subtle bug where the first
page after the meta data has been loaded unconditionally sets sync_read
to 0. If this first PFN was actually a highmem page, then the returned
buffer will be the global "buffer," and the page needs to be loaded
synchronously.

That is, I'm not sure we can always assume the following to be safe:

handle->buffer = get_buffer(&orig_bm, &ca);
handle->sync_read = 0;

Because get_buffer() can call get_highmem_page_buffer() which can
return 'buffer'.

The easiest way to address this is just set sync_read before
snapshot_write_next() returns if handle->buffer == buffer.

Signed-off-by: Brian Geffon <bgeffon@google.com>
Fixes: 8357376d3df2 ("[PATCH] swsusp: Improve handling of highmem")
Cc: All applicable <stable@vger.kernel.org>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoPM: hibernate: Use __get_safe_page() rather than touching the list
Brian Geffon [Thu, 21 Sep 2023 17:00:45 +0000 (13:00 -0400)]
PM: hibernate: Use __get_safe_page() rather than touching the list

commit f0c7183008b41e92fa676406d87f18773724b48b upstream.

We found at least one situation where the safe pages list was empty and
get_buffer() would gladly try to use a NULL pointer.

Signed-off-by: Brian Geffon <bgeffon@google.com>
Fixes: 8357376d3df2 ("[PATCH] swsusp: Improve handling of highmem")
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoarm64: dts: qcom: ipq6018: Fix hwlock index for SMEM
Vignesh Viswanathan [Mon, 4 Sep 2023 17:25:13 +0000 (22:55 +0530)]
arm64: dts: qcom: ipq6018: Fix hwlock index for SMEM

commit 95d97b111e1e184b0c8656137033ed64f2cf21e4 upstream.

SMEM uses lock index 3 of the TCSR Mutex hwlock for allocations
in SMEM region shared by the Host and FW.

Fix the SMEM hwlock index to 3 for IPQ6018.

Cc: stable@vger.kernel.org
Fixes: 5bf635621245 ("arm64: dts: ipq6018: Add a few device nodes")
Signed-off-by: Vignesh Viswanathan <quic_viswanat@quicinc.com>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230904172516.479866-3-quic_viswanat@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agorcu/tree: Defer setting of jiffies during stall reset
Joel Fernandes (Google) [Tue, 5 Sep 2023 00:02:11 +0000 (00:02 +0000)]
rcu/tree: Defer setting of jiffies during stall reset

commit b96e7a5fa0ba9cda32888e04f8f4bac42d49a7f8 upstream.

There are instances where rcu_cpu_stall_reset() is called when jiffies
did not get a chance to update for a long time. Before jiffies is
updated, the CPU stall detector can go off triggering false-positives
where a just-started grace period appears to be ages old. In the past,
we disabled stall detection in rcu_cpu_stall_reset() however this got
changed [1]. This is resulting in false-positives in KGDB usecase [2].

Fix this by deferring the update of jiffies to the third run of the FQS
loop. This is more robust, as, even if rcu_cpu_stall_reset() is called
just before jiffies is read, we would end up pushing out the jiffies
read by 3 more FQS loops. Meanwhile the CPU stall detection will be
delayed and we will not get any false positives.

[1] https://lore.kernel.org/all/20210521155624.174524-2-senozhatsky@chromium.org/
[2] https://lore.kernel.org/all/20230814020045.51950-2-chenhuacai@loongson.cn/

Tested with rcutorture.cpu_stall option as well to verify stall behavior
with/without patch.

Tested-by: Huacai Chen <chenhuacai@loongson.cn>
Reported-by: Binbin Zhou <zhoubinbin@loongson.cn>
Closes: https://lore.kernel.org/all/20230814020045.51950-2-chenhuacai@loongson.cn/
Suggested-by: Paul McKenney <paulmck@kernel.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: a80be428fbc1 ("rcu: Do not disable GP stall detection in rcu_cpu_stall_reset()")
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agosvcrdma: Drop connection after an RDMA Read error
Chuck Lever [Tue, 10 Oct 2023 17:23:41 +0000 (13:23 -0400)]
svcrdma: Drop connection after an RDMA Read error

commit 197115ebf358cb440c73e868b2a0a5ef728decc6 upstream.

When an RPC Call message cannot be pulled from the client, that
is a message loss, by definition. Close the connection to trigger
the client to resend.

Cc: <stable@vger.kernel.org>
Reviewed-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agowifi: wilc1000: use vmm_table as array in wilc struct
Ajay Singh [Tue, 17 Oct 2023 08:43:38 +0000 (10:43 +0200)]
wifi: wilc1000: use vmm_table as array in wilc struct

commit 05ac1a198a63ad66bf5ae8b7321407c102d40ef3 upstream.

Enabling KASAN and running some iperf tests raises some memory issues with
vmm_table:

BUG: KASAN: slab-out-of-bounds in wilc_wlan_handle_txq+0x6ac/0xdb4
Write of size 4 at addr c3a61540 by task wlan0-tx/95

KASAN detects that we are writing data beyond range allocated to vmm_table.
There is indeed a mismatch between the size passed to allocator in
wilc_wlan_init, and the range of possible indexes used later: allocation
size is missing a multiplication by sizeof(u32)

Fixes: 40b717bfcefa ("wifi: wilc1000: fix DMA on stack objects")
Cc: stable@vger.kernel.org
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231017-wilc1000_tx_oops-v3-1-b2155f1f7bee@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoPCI: exynos: Don't discard .remove() callback
Uwe Kleine-König [Sun, 1 Oct 2023 17:02:51 +0000 (19:02 +0200)]
PCI: exynos: Don't discard .remove() callback

commit 83a939f0fdc208ff3639dd3d42ac9b3c35607fd2 upstream.

With CONFIG_PCI_EXYNOS=y and exynos_pcie_remove() marked with __exit, the
function is discarded from the driver. In this case a bound device can
still get unbound, e.g via sysfs. Then no cleanup code is run resulting in
resource leaks or worse.

The right thing to do is do always have the remove callback available.
This fixes the following warning by modpost:

  WARNING: modpost: drivers/pci/controller/dwc/pci-exynos: section mismatch in reference: exynos_pcie_driver+0x8 (section: .data) -> exynos_pcie_remove (section: .exit.text)

(with ARCH=x86_64 W=1 allmodconfig).

Fixes: 340cba6092c2 ("pci: Add PCIe driver for Samsung Exynos")
Link: https://lore.kernel.org/r/20231001170254.2506508-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoPCI: kirin: Don't discard .remove() callback
Uwe Kleine-König [Sun, 1 Oct 2023 17:02:52 +0000 (19:02 +0200)]
PCI: kirin: Don't discard .remove() callback

commit 3064ef2e88c1629c1e67a77d7bc20020b35846f2 upstream.

With CONFIG_PCIE_KIRIN=y and kirin_pcie_remove() marked with __exit, the
function is discarded from the driver. In this case a bound device can
still get unbound, e.g via sysfs. Then no cleanup code is run resulting in
resource leaks or worse.

The right thing to do is do always have the remove callback available.
This fixes the following warning by modpost:

  drivers/pci/controller/dwc/pcie-kirin: section mismatch in reference: kirin_pcie_driver+0x8 (section: .data) -> kirin_pcie_remove (section: .exit.text)

(with ARCH=x86_64 W=1 allmodconfig).

Fixes: 000f60db784b ("PCI: kirin: Add support for a PHY layer")
Link: https://lore.kernel.org/r/20231001170254.2506508-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoPCI/ASPM: Fix L1 substate handling in aspm_attr_store_common()
Heiner Kallweit [Wed, 11 Oct 2023 07:46:45 +0000 (09:46 +0200)]
PCI/ASPM: Fix L1 substate handling in aspm_attr_store_common()

commit 8e37372ad0bea4c9b4712d9943f6ae96cff9491f upstream.

aspm_attr_store_common(), which handles sysfs control of ASPM, has the same
problem as fb097dcd5a28 ("PCI/ASPM: Disable only ASPM_STATE_L1 when driver
disables L1"): disabling L1 adds only ASPM_L1 (but not any of the L1.x
substates) to the "aspm_disable" mask.

Enabling one substate, e.g., L1.1, via sysfs removes ASPM_L1 from the
disable mask.  Since disabling L1 via sysfs doesn't add any of the
substates to the disable mask, enabling L1.1 actually enables *all* the
substates.

In this scenario:

  - Write 0 to "l1_aspm" to disable L1
  - Write 1 to "l1_1_aspm" to enable L1.1

the intention is to disable L1 and all L1.x substates, then enable just
L1.1, but in fact, *all* L1.x substates are enabled.

Fix this by explicitly disabling all the L1.x substates when disabling L1.

Fixes: 72ea91afbfb0 ("PCI/ASPM: Add sysfs attributes for controlling ASPM link states")
Link: https://lore.kernel.org/r/6ba7dd79-9cfe-4ed0-a002-d99cb842f361@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agommc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A
Bean Huo [Mon, 30 Oct 2023 22:48:09 +0000 (23:48 +0100)]
mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A

commit ed9009ad300c0f15a3ecfe9613547b1962bde02c upstream.

Micron MTFC4GACAJCN eMMC supports cache but requires that flush cache
operation be allowed only after a write has occurred. Otherwise, the
cache flush command or subsequent commands will time out.

Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Rafael Beims <rafael.beims@toradex.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231030224809.59245-1-beanhuo@iokpp.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agommc: sdhci_am654: fix start loop index for TAP value parsing
Nitin Yadav [Thu, 26 Oct 2023 06:14:58 +0000 (11:44 +0530)]
mmc: sdhci_am654: fix start loop index for TAP value parsing

commit 71956d0cb56c1e5f9feeb4819db87a076418e930 upstream.

ti,otap-del-sel-legacy/ti,itap-del-sel-legacy passed from DT
are currently ignored for all SD/MMC and eMMC modes. Fix this
by making start loop index to MMC_TIMING_LEGACY.

Fixes: 8ee5fc0e0b3b ("mmc: sdhci_am654: Update OTAPDLY writes")
Signed-off-by: Nitin Yadav <n-yadav@ti.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231026061458.1116276-1-n-yadav@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agommc: vub300: fix an error code
Dan Carpenter [Thu, 2 Nov 2023 07:51:06 +0000 (10:51 +0300)]
mmc: vub300: fix an error code

commit b44f9da81783fda72632ef9b0d05ea3f3ca447a5 upstream.

This error path should return -EINVAL instead of success.

Fixes: 88095e7b473a ("mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/0769d30c-ad80-421b-bf5d-7d6f5d85604e@moroto.mountain
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoksmbd: fix slab out of bounds write in smb_inherit_dacl()
Namjae Jeon [Sun, 5 Nov 2023 03:46:24 +0000 (12:46 +0900)]
ksmbd: fix slab out of bounds write in smb_inherit_dacl()

commit eebff19acaa35820cb09ce2ccb3d21bee2156ffb upstream.

slab out-of-bounds write is caused by that offsets is bigger than pntsd
allocation size. This patch add the check to validate 3 offsets using
allocation size.

Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-22271
Cc: stable@vger.kernel.org
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoksmbd: handle malformed smb1 message
Namjae Jeon [Tue, 7 Nov 2023 12:04:31 +0000 (21:04 +0900)]
ksmbd: handle malformed smb1 message

commit 5a5409d90bd05f87fe5623a749ccfbf3f7c7d400 upstream.

If set_smb1_rsp_status() is not implemented, It will cause NULL pointer
dereferece error when client send malformed smb1 message.
This patch add set_smb1_rsp_status() to ignore malformed smb1 message.

Cc: stable@vger.kernel.org
Reported-by: Robert Morris <rtm@csail.mit.edu>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoclk: qcom: ipq6018: drop the CLK_SET_RATE_PARENT flag from PLL clocks
Kathiravan Thirumoorthy [Thu, 14 Sep 2023 06:59:52 +0000 (12:29 +0530)]
clk: qcom: ipq6018: drop the CLK_SET_RATE_PARENT flag from PLL clocks

commit 99cd4935cb972d0aafb16838bb2aeadbcaf196ce upstream.

GPLL, NSS crypto PLL clock rates are fixed and shouldn't be scaled based
on the request from dependent clocks. Doing so will result in the
unexpected behaviour. So drop the CLK_SET_RATE_PARENT flag from the PLL
clocks.

Cc: stable@vger.kernel.org
Fixes: d9db07f088af ("clk: qcom: Add ipq6018 Global Clock Controller support")
Signed-off-by: Kathiravan Thirumoorthy <quic_kathirav@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230913-gpll_cleanup-v2-2-c8ceb1a37680@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoclk: qcom: ipq8074: drop the CLK_SET_RATE_PARENT flag from PLL clocks
Kathiravan Thirumoorthy [Thu, 14 Sep 2023 06:59:51 +0000 (12:29 +0530)]
clk: qcom: ipq8074: drop the CLK_SET_RATE_PARENT flag from PLL clocks

commit e641a070137dd959932c7c222e000d9d941167a2 upstream.

GPLL, NSS crypto PLL clock rates are fixed and shouldn't be scaled based
on the request from dependent clocks. Doing so will result in the
unexpected behaviour. So drop the CLK_SET_RATE_PARENT flag from the PLL
clocks.

Cc: stable@vger.kernel.org
Fixes: b8e7e519625f ("clk: qcom: ipq8074: add remaining PLL’s")
Signed-off-by: Kathiravan Thirumoorthy <quic_kathirav@quicinc.com>
Link: https://lore.kernel.org/r/20230913-gpll_cleanup-v2-1-c8ceb1a37680@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoclk: socfpga: Fix undefined behavior bug in struct stratix10_clock_data
Gustavo A. R. Silva [Tue, 24 Oct 2023 03:30:52 +0000 (21:30 -0600)]
clk: socfpga: Fix undefined behavior bug in struct stratix10_clock_data

commit d761bb01c85b22d5b44abe283eb89019693f6595 upstream.

`struct clk_hw_onecell_data` is a flexible structure, which means that
it contains flexible-array member at the bottom, in this case array
`hws`:

include/linux/clk-provider.h:
1380 struct clk_hw_onecell_data {
1381         unsigned int num;
1382         struct clk_hw *hws[] __counted_by(num);
1383 };

This could potentially lead to an overwrite of the objects following
`clk_data` in `struct stratix10_clock_data`, in this case
`void __iomem *base;` at run-time:

drivers/clk/socfpga/stratix10-clk.h:
  9 struct stratix10_clock_data {
 10         struct clk_hw_onecell_data      clk_data;
 11         void __iomem            *base;
 12 };

There are currently three different places where memory is allocated for
`struct stratix10_clock_data`, including the flex-array `hws` in
`struct clk_hw_onecell_data`:

drivers/clk/socfpga/clk-agilex.c:
469         clk_data = devm_kzalloc(dev, struct_size(clk_data, clk_data.hws,
470                                 num_clks), GFP_KERNEL);

drivers/clk/socfpga/clk-agilex.c:
509         clk_data = devm_kzalloc(dev, struct_size(clk_data, clk_data.hws,
510                                 num_clks), GFP_KERNEL);

drivers/clk/socfpga/clk-s10.c:
400         clk_data = devm_kzalloc(dev, struct_size(clk_data, clk_data.hws,
401                                                  num_clks), GFP_KERNEL);

I'll use just one of them to describe the issue. See below.

Notice that a total of 440 bytes are allocated for flexible-array member
`hws` at line 469:

include/dt-bindings/clock/agilex-clock.h:
 70 #define AGILEX_NUM_CLKS 55

drivers/clk/socfpga/clk-agilex.c:
459         struct stratix10_clock_data *clk_data;
460         void __iomem *base;
...
466
467         num_clks = AGILEX_NUM_CLKS;
468
469         clk_data = devm_kzalloc(dev, struct_size(clk_data, clk_data.hws,
470                                 num_clks), GFP_KERNEL);

`struct_size(clk_data, clk_data.hws, num_clks)` above translates to
sizeof(struct stratix10_clock_data) + sizeof(struct clk_hw *) * 55 ==
16 + 8 * 55 == 16 + 440
    ^^^
     |
allocated bytes for flex-array `hws`

474         for (i = 0; i < num_clks; i++)
475                 clk_data->clk_data.hws[i] = ERR_PTR(-ENOENT);
476
477         clk_data->base = base;

and then some data is written into both `hws` and `base` objects.

Fix this by placing the declaration of object `clk_data` at the end of
`struct stratix10_clock_data`. Also, add a comment to make it clear
that this object must always be last in the structure.

-Wflex-array-member-not-at-end is coming in GCC-14, and we are getting
ready to enable it globally.

Fixes: ba7e258425ac ("clk: socfpga: Convert to s10/agilex/n5x to use clk_hw")
Cc: stable@vger.kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/1da736106d8e0806aeafa6e471a13ced490eae22.1698117815.git.gustavoars@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoparisc/power: Add power soft-off when running on qemu
Helge Deller [Tue, 17 Oct 2023 20:19:53 +0000 (22:19 +0200)]
parisc/power: Add power soft-off when running on qemu

commit d0c219472980d15f5cbc5c8aec736848bda3f235 upstream.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoparisc/pdc: Add width field to struct pdc_model
Helge Deller [Sun, 22 Oct 2023 09:48:11 +0000 (11:48 +0200)]
parisc/pdc: Add width field to struct pdc_model

commit 6240553b52c475d9fc9674de0521b77e692f3764 upstream.

PDC2.0 specifies the additional PSW-bit field.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoarm64: Restrict CPU_BIG_ENDIAN to GNU as or LLVM IAS 15.x or newer
Nathan Chancellor [Wed, 25 Oct 2023 17:21:28 +0000 (10:21 -0700)]
arm64: Restrict CPU_BIG_ENDIAN to GNU as or LLVM IAS 15.x or newer

commit 146a15b873353f8ac28dc281c139ff611a3c4848 upstream.

Prior to LLVM 15.0.0, LLVM's integrated assembler would incorrectly
byte-swap NOP when compiling for big-endian, and the resulting series of
bytes happened to match the encoding of FNMADD S21, S30, S0, S0.

This went unnoticed until commit:

  34f66c4c4d5518c1 ("arm64: Use a positive cpucap for FP/SIMD")

Prior to that commit, the kernel would always enable the use of FPSIMD
early in boot when __cpu_setup() initialized CPACR_EL1, and so usage of
FNMADD within the kernel was not detected, but could result in the
corruption of user or kernel FPSIMD state.

After that commit, the instructions happen to trap during boot prior to
FPSIMD being detected and enabled, e.g.

| Unhandled 64-bit el1h sync exception on CPU0, ESR 0x000000001fe00000 -- ASIMD
| CPU: 0 PID: 0 Comm: swapper Not tainted 6.6.0-rc3-00013-g34f66c4c4d55 #1
| Hardware name: linux,dummy-virt (DT)
| pstate: 400000c9 (nZcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
| pc : __pi_strcmp+0x1c/0x150
| lr : populate_properties+0xe4/0x254
| sp : ffffd014173d3ad0
| x29: ffffd014173d3af0 x28: fffffbfffddffcb8 x27: 0000000000000000
| x26: 0000000000000058 x25: fffffbfffddfe054 x24: 0000000000000008
| x23: fffffbfffddfe000 x22: fffffbfffddfe000 x21: fffffbfffddfe044
| x20: ffffd014173d3b70 x19: 0000000000000001 x18: 0000000000000005
| x17: 0000000000000010 x16: 0000000000000000 x15: 00000000413e7000
| x14: 0000000000000000 x13: 0000000000001bcc x12: 0000000000000000
| x11: 00000000d00dfeed x10: ffffd414193f2cd0 x9 : 0000000000000000
| x8 : 0101010101010101 x7 : ffffffffffffffc0 x6 : 0000000000000000
| x5 : 0000000000000000 x4 : 0101010101010101 x3 : 000000000000002a
| x2 : 0000000000000001 x1 : ffffd014171f2988 x0 : fffffbfffddffcb8
| Kernel panic - not syncing: Unhandled exception
| CPU: 0 PID: 0 Comm: swapper Not tainted 6.6.0-rc3-00013-g34f66c4c4d55 #1
| Hardware name: linux,dummy-virt (DT)
| Call trace:
|  dump_backtrace+0xec/0x108
|  show_stack+0x18/0x2c
|  dump_stack_lvl+0x50/0x68
|  dump_stack+0x18/0x24
|  panic+0x13c/0x340
|  el1t_64_irq_handler+0x0/0x1c
|  el1_abort+0x0/0x5c
|  el1h_64_sync+0x64/0x68
|  __pi_strcmp+0x1c/0x150
|  unflatten_dt_nodes+0x1e8/0x2d8
|  __unflatten_device_tree+0x5c/0x15c
|  unflatten_device_tree+0x38/0x50
|  setup_arch+0x164/0x1e0
|  start_kernel+0x64/0x38c
|  __primary_switched+0xbc/0xc4

Restrict CONFIG_CPU_BIG_ENDIAN to a known good assembler, which is
either GNU as or LLVM's IAS 15.0.0 and newer, which contains the linked
commit.

Closes: https://github.com/ClangBuiltLinux/linux/issues/1948
Link: https://github.com/llvm/llvm-project/commit/1379b150991f70a5782e9a143c2ba5308da1161c
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Cc: stable@vger.kernel.org
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20231025-disable-arm64-be-ias-b4-llvm-15-v1-1-b25263ed8b23@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoPCI: keystone: Don't discard .probe() callback
Uwe Kleine-König [Sun, 1 Oct 2023 17:02:54 +0000 (19:02 +0200)]
PCI: keystone: Don't discard .probe() callback

commit 7994db905c0fd692cf04c527585f08a91b560144 upstream.

The __init annotation makes the ks_pcie_probe() function disappear after
booting completes. However a device can also be bound later. In that case,
we try to call ks_pcie_probe(), but the backing memory is likely already
overwritten.

The right thing to do is do always have the probe callback available.  Note
that the (wrong) __refdata annotation prevented this issue to be noticed by
modpost.

Fixes: 0c4ffcfe1fbc ("PCI: keystone: Add TI Keystone PCIe driver")
Link: https://lore.kernel.org/r/20231001170254.2506508-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoPCI: keystone: Don't discard .remove() callback
Uwe Kleine-König [Sun, 1 Oct 2023 17:02:53 +0000 (19:02 +0200)]
PCI: keystone: Don't discard .remove() callback

commit 200bddbb3f5202bbce96444fdc416305de14f547 upstream.

With CONFIG_PCIE_KEYSTONE=y and ks_pcie_remove() marked with __exit, the
function is discarded from the driver. In this case a bound device can
still get unbound, e.g via sysfs. Then no cleanup code is run resulting in
resource leaks or worse.

The right thing to do is do always have the remove callback available.
Note that this driver cannot be compiled as a module, so ks_pcie_remove()
was always discarded before this change and modpost couldn't warn about
this issue. Furthermore the __ref annotation also prevents a warning.

Fixes: 0c4ffcfe1fbc ("PCI: keystone: Add TI Keystone PCIe driver")
Link: https://lore.kernel.org/r/20231001170254.2506508-4-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoKEYS: trusted: Rollback init_trusted() consistently
Jarkko Sakkinen [Tue, 10 Oct 2023 23:08:25 +0000 (02:08 +0300)]
KEYS: trusted: Rollback init_trusted() consistently

commit 31de287345f41bbfaec36a5c8cbdba035cf76442 upstream.

Do bind neither static calls nor trusted_key_exit() before a successful
init, in order to maintain a consistent state. In addition, depart the
init_trusted() in the case of a real error (i.e. getting back something
else than -ENODEV).

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Closes: https://lore.kernel.org/linux-integrity/CAHk-=whOPoLaWM8S8GgoOPT7a2+nMH5h3TLKtn=R_3w4R1_Uvg@mail.gmail.com/
Cc: stable@vger.kernel.org # v5.13+
Fixes: 5d0682be3189 ("KEYS: trusted: Add generic trusted keys framework")
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 months agoKEYS: trusted: tee: Refactor register SHM usage
Sumit Garg [Tue, 22 Aug 2023 11:29:33 +0000 (16:59 +0530)]
KEYS: trusted: tee: Refactor register SHM usage

commit c745cd1718b7825d69315fe7127e2e289e617598 upstream.

The OP-TEE driver using the old SMC based ABI permits overlapping shared
buffers, but with the new FF-A based ABI each physical page may only
be registered once.

As the key and blob buffer are allocated adjancently, there is no need
for redundant register shared memory invocation. Also, it is incompatibile
with FF-A based ABI limitation. So refactor register shared memory
implementation to use only single invocation to register both key and blob
buffers.

[jarkko: Added cc to stable.]
Cc: stable@vger.kernel.org # v5.16+
Fixes: 4615e5a34b95 ("optee: add FF-A support")
Reported-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Tested-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>