platform/kernel/linux-starfive.git
14 months agos390/crypto: use kfree_sensitive() instead of kfree()
Wang Ming [Mon, 17 Jul 2023 09:45:19 +0000 (17:45 +0800)]
s390/crypto: use kfree_sensitive() instead of kfree()

key might contain private part of the key, so better use
kfree_sensitive() to free it.

Signed-off-by: Wang Ming <machel@vivo.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230717094533.18418-1-machel@vivo.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
14 months agoMerge tag 'asoc-fix-v6.5-rc1-2' of https://git.kernel.org/pub/scm/linux/kernel/git...
Takashi Iwai [Thu, 20 Jul 2023 13:16:11 +0000 (15:16 +0200)]
Merge tag 'asoc-fix-v6.5-rc1-2' of https://git./linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.5

A few more fixes for v6.5, just small driver specific ones.

14 months agoregmap: Disable locking for RBTREE and MAPLE unit tests
Guenter Roeck [Thu, 20 Jul 2023 03:28:47 +0000 (20:28 -0700)]
regmap: Disable locking for RBTREE and MAPLE unit tests

REGCACHE_RBTREE and REGCACHE_MAPLE dynamically allocate memory
for regmap operations. This is incompatible with spinlock based locking
which is used for fast_io operations. Disable locking for the associated
unit tests to avoid lockdep splashes.

Fixes: f033c26de5a5 ("regmap: Add maple tree based register cache")
Fixes: 2238959b6ad2 ("regmap: Add some basic kunit tests")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230720032848.1306349-1-linux@roeck-us.net
Signed-off-by: Mark Brown <broonie@kernel.org>
14 months agogpio: mvebu: fix irq domain leak
Bartosz Golaszewski [Wed, 19 Jul 2023 11:41:01 +0000 (13:41 +0200)]
gpio: mvebu: fix irq domain leak

Uwe Kleine-König pointed out we still have one resource leak in the mvebu
driver triggered on driver detach. Let's address it with a custom devm
action.

Fixes: 812d47889a8e ("gpio/mvebu: Use irq_domain_add_linear")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
14 months agoaccel/habanalabs: add more debugfs stub helpers
Arnd Bergmann [Fri, 9 Jun 2023 12:06:32 +0000 (14:06 +0200)]
accel/habanalabs: add more debugfs stub helpers

Two functions got added with normal prototypes for debugfs, but not
alternative when building without it:

drivers/accel/habanalabs/common/device.c: In function 'hl_device_init':
drivers/accel/habanalabs/common/device.c:2177:14: error: implicit declaration of function 'hl_debugfs_device_init'; did you mean 'hl_debugfs_init'? [-Werror=implicit-function-declaration]
drivers/accel/habanalabs/common/device.c:2305:9: error: implicit declaration of function 'hl_debugfs_device_fini'; did you mean 'hl_debugfs_remove_file'? [-Werror=implicit-function-declaration]

Add stubs for these as well.

Fixes: 3b9abb4fa642 ("accel/habanalabs: expose debugfs files later")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Acked-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20230609120636.3969045-1-arnd@kernel.org
14 months agoarm64: vdso: Clear common make C=2 warnings
Zhen Lei [Thu, 13 Jul 2023 11:58:31 +0000 (19:58 +0800)]
arm64: vdso: Clear common make C=2 warnings

make C=2 ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- xxx.o

When I use the command above to do a 'make C=2' check on any object file,
the following warnings are always output:

  CHECK   arch/arm64/kernel/vdso/vgettimeofday.c
arch/arm64/kernel/vdso/vgettimeofday.c:9:5: warning:
 symbol '__kernel_clock_gettime' was not declared. Should it be static?
arch/arm64/kernel/vdso/vgettimeofday.c:15:5: warning:
 symbol '__kernel_gettimeofday' was not declared. Should it be static?
arch/arm64/kernel/vdso/vgettimeofday.c:21:5: warning:
 symbol '__kernel_clock_getres' was not declared. Should it be static?

Therefore, the declaration of the three functions is added to eliminate
these common warnings to provide a clean output.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20230713115831.777-1-thunder.leizhen@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
14 months agoarm64: mm: Make hibernation aware of KFENCE
Nikhil V [Thu, 13 Jul 2023 07:07:57 +0000 (12:37 +0530)]
arm64: mm: Make hibernation aware of KFENCE

In the restore path, swsusp_arch_suspend_exit uses copy_page() to
over-write memory. However, with features like KFENCE enabled, there could
be situations where it may have marked some pages as not valid, due to
which it could be reported as invalid accesses.

Consider a situation where page 'P' was part of the hibernation image.
Now, when the resume kernel tries to restore the pages, the same page 'P'
is already in use in the resume kernel and is kfence protected, due to
which its mapping is removed from linear map. Since restoring pages happens
with the resume kernel page tables, we would end up accessing 'P' during
copy and results in kernel pagefault.

The proposed fix tries to solve this issue by marking PTE as valid for such
kfence protected pages.

Co-developed-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Signed-off-by: Nikhil V <quic_nprakash@quicinc.com>
Link: https://lore.kernel.org/r/20230713070757.4093-1-quic_nprakash@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>
14 months agonetfilter: nft_set_pipapo: fix improper element removal
Florian Westphal [Wed, 19 Jul 2023 19:08:21 +0000 (21:08 +0200)]
netfilter: nft_set_pipapo: fix improper element removal

end key should be equal to start unless NFT_SET_EXT_KEY_END is present.

Its possible to add elements that only have a start key
("{ 1.0.0.0 . 2.0.0.0 }") without an internval end.

Insertion treats this via:

if (nft_set_ext_exists(ext, NFT_SET_EXT_KEY_END))
   end = (const u8 *)nft_set_ext_key_end(ext)->data;
else
   end = start;

but removal side always uses nft_set_ext_key_end().
This is wrong and leads to garbage remaining in the set after removal
next lookup/insert attempt will give:

BUG: KASAN: slab-use-after-free in pipapo_get+0x8eb/0xb90
Read of size 1 at addr ffff888100d50586 by task nft-pipapo_uaf_/1399
Call Trace:
 kasan_report+0x105/0x140
 pipapo_get+0x8eb/0xb90
 nft_pipapo_insert+0x1dc/0x1710
 nf_tables_newsetelem+0x31f5/0x4e00
 ..

Fixes: 3c4287f62044 ("nf_tables: Add set type for arbitrary concatenation of ranges")
Reported-by: lonial con <kongln9170@gmail.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
14 months agonetfilter: nf_tables: can't schedule in nft_chain_validate
Florian Westphal [Mon, 17 Jul 2023 23:30:33 +0000 (01:30 +0200)]
netfilter: nf_tables: can't schedule in nft_chain_validate

Can be called via nft set element list iteration, which may acquire
rcu and/or bh read lock (depends on set type).

BUG: sleeping function called from invalid context at net/netfilter/nf_tables_api.c:3353
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 1232, name: nft
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
2 locks held by nft/1232:
 #0: ffff8881180e3ea8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid
 #1: ffffffff83f5f540 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire
Call Trace:
 nft_chain_validate
 nft_lookup_validate_setelem
 nft_pipapo_walk
 nft_lookup_validate
 nft_chain_validate
 nft_immediate_validate
 nft_chain_validate
 nf_tables_validate
 nf_tables_abort

No choice but to move it to nf_tables_validate().

Fixes: 81ea01066741 ("netfilter: nf_tables: add rescheduling points during loop detection walks")
Signed-off-by: Florian Westphal <fw@strlen.de>
14 months agonetfilter: nf_tables: fix spurious set element insertion failure
Florian Westphal [Wed, 19 Jul 2023 22:29:58 +0000 (00:29 +0200)]
netfilter: nf_tables: fix spurious set element insertion failure

On some platforms there is a padding hole in the nft_verdict
structure, between the verdict code and the chain pointer.

On element insertion, if the new element clashes with an existing one and
NLM_F_EXCL flag isn't set, we want to ignore the -EEXIST error as long as
the data associated with duplicated element is the same as the existing
one.  The data equality check uses memcmp.

For normal data (NFT_DATA_VALUE) this works fine, but for NFT_DATA_VERDICT
padding area leads to spurious failure even if the verdict data is the
same.

This then makes the insertion fail with 'already exists' error, even
though the new "key : data" matches an existing entry and userspace
told the kernel that it doesn't want to receive an error indication.

Fixes: c016c7e45ddf ("netfilter: nf_tables: honor NLM_F_EXCL flag in set element insertion")
Signed-off-by: Florian Westphal <fw@strlen.de>
14 months agoALSA: hda/realtek: Add support for DELL Oasis 13/14/16 laptops
Vitaly Rodionov [Thu, 20 Jul 2023 08:20:22 +0000 (09:20 +0100)]
ALSA: hda/realtek: Add support for DELL Oasis 13/14/16 laptops

Adding support for new Dell laptops using Cirrus Logic CS35L41
smart amplifiers with Realtek codec.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230720082022.13033-2-vitalyr@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
14 months agoALSA: hda/realtek: Fix generic fixup definition for cs35l41 amp
Vitaly Rodionov [Thu, 20 Jul 2023 08:20:21 +0000 (09:20 +0100)]
ALSA: hda/realtek: Fix generic fixup definition for cs35l41 amp

Generic fixup for CS35L41 amplifies should not have vendor specific
chained fixup. For ThinkPad laptops with led issue, we can just add
specific fixup.

Fixes: a6ac60b36dade (ALSA: hda/realtek: Fix mute led issue on thinkpad with cs35l41 s-codec)
Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230720082022.13033-1-vitalyr@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
14 months agoMerge branch 'net-support-stp-on-bridge-in-non-root-netns'
Paolo Abeni [Thu, 20 Jul 2023 08:46:33 +0000 (10:46 +0200)]
Merge branch 'net-support-stp-on-bridge-in-non-root-netns'

Kuniyuki Iwashima says:

====================
net: Support STP on bridge in non-root netns.

Currently, STP does not work in non-root netns as llc_rcv() drops
packets from non-root netns.

This series fixes it by making some protocol handlers netns-aware,
which are called from llc_rcv() as follows:

  llc_rcv()
  |
  |- sap->rcv_func : registered by llc_sap_open()
  |
  |  * functions : regsitered by register_8022_client()
  |    -> No in-kernel user call register_8022_client()
  |
  |  * snap_rcv()
  |    |
  |    `- proto->rcvfunc() : registered by register_snap_client()
  |
  |       * aarp_rcv()  : drop packets from non-root netns
  |       * atalk_rcv() : drop packets from non-root netns
  |
  |  * stp_pdu_rcv()
  |    |
  |    `- garp_protos[]->rcv() : registered by stp_proto_register()
  |
  |       * garp_pdu_rcv() : netns-aware
  |       * br_stp_rcv()   : netns-aware
  |
  |- llc_type_handlers[llc_pdu_type(skb) - 1]
  |
  |  * llc_sap_handler()  : NOT netns-aware (Patch 1)
  |  * llc_conn_handler() : NOT netns-aware (Patch 2)
  |
  `- llc_station_handler

     * llc_station_rcv() : netns-aware

Patch 1 & 2 convert not-netns-aware functions and Patch 3 remove the
netns restriction in llc_rcv().

Note this series does not namespacify AF_LLC so that these patches
can be backported to stable without conflicts (at least to 4.14.y).

Another series that adds netns support for AF_LLC will be targeted
to net-next later.
====================

Link: https://lore.kernel.org/r/20230718174152.57408-1-kuniyu@amazon.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
14 months agoRevert "bridge: Add extack warning when enabling STP in netns."
Kuniyuki Iwashima [Tue, 18 Jul 2023 17:41:52 +0000 (10:41 -0700)]
Revert "bridge: Add extack warning when enabling STP in netns."

This reverts commit 56a16035bb6effb37177867cea94c13a8382f745.

Since the previous commit, STP works on bridge in netns.

  # unshare -n
  # ip link add br0 type bridge
  # ip link add veth0 type veth peer name veth1

  # ip link set veth0 master br0 up
  [   50.558135] br0: port 1(veth0) entered blocking state
  [   50.558366] br0: port 1(veth0) entered disabled state
  [   50.558798] veth0: entered allmulticast mode
  [   50.564401] veth0: entered promiscuous mode

  # ip link set veth1 master br0 up
  [   54.215487] br0: port 2(veth1) entered blocking state
  [   54.215657] br0: port 2(veth1) entered disabled state
  [   54.215848] veth1: entered allmulticast mode
  [   54.219577] veth1: entered promiscuous mode

  # ip link set br0 type bridge stp_state 1
  # ip link set br0 up
  [   61.960726] br0: port 2(veth1) entered blocking state
  [   61.961097] br0: port 2(veth1) entered listening state
  [   61.961495] br0: port 1(veth0) entered blocking state
  [   61.961653] br0: port 1(veth0) entered listening state
  [   63.998835] br0: port 2(veth1) entered blocking state
  [   77.437113] br0: port 1(veth0) entered learning state
  [   86.653501] br0: received packet on veth0 with own address as source address (addr:6e:0f:e7:6f:5f:5f, vlan:0)
  [   92.797095] br0: port 1(veth0) entered forwarding state
  [   92.797398] br0: topology change detected, propagating

Let's remove the warning.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
14 months agollc: Don't drop packet from non-root netns.
Kuniyuki Iwashima [Tue, 18 Jul 2023 17:41:51 +0000 (10:41 -0700)]
llc: Don't drop packet from non-root netns.

Now these upper layer protocol handlers can be called from llc_rcv()
as sap->rcv_func(), which is registered by llc_sap_open().

  * function which is passed to register_8022_client()
    -> no in-kernel user calls register_8022_client().

  * snap_rcv()
    `- proto->rcvfunc() : registered by register_snap_client()
       -> aarp_rcv() and atalk_rcv() drop packets from non-root netns

  * stp_pdu_rcv()
    `- garp_protos[]->rcv() : registered by stp_proto_register()
       -> garp_pdu_rcv() and br_stp_rcv() are netns-aware

So, we can safely remove the netns restriction in llc_rcv().

Fixes: e730c15519d0 ("[NET]: Make packet reception network namespace safe")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
14 months agollc: Check netns in llc_estab_match() and llc_listener_match().
Kuniyuki Iwashima [Tue, 18 Jul 2023 17:41:50 +0000 (10:41 -0700)]
llc: Check netns in llc_estab_match() and llc_listener_match().

We will remove this restriction in llc_rcv() in the following patch,
which means that the protocol handler must be aware of netns.

        if (!net_eq(dev_net(dev), &init_net))
                goto drop;

llc_rcv() fetches llc_type_handlers[llc_pdu_type(skb) - 1] and calls it
if not NULL.

If the PDU type is LLC_DEST_CONN, llc_conn_handler() is called to pass
skb to corresponding sockets.  Then, we must look up a proper socket in
the same netns with skb->dev.

llc_conn_handler() calls __llc_lookup() to look up a established or
litening socket by __llc_lookup_established() and llc_lookup_listener().

Both functions iterate on a list and call llc_estab_match() or
llc_listener_match() to check if the socket is the correct destination.
However, these functions do not check netns.

Also, bind() and connect() call llc_establish_connection(), which
finally calls __llc_lookup_established(), to check if there is a
conflicting socket.

Let's test netns in llc_estab_match() and llc_listener_match().

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
14 months agollc: Check netns in llc_dgram_match().
Kuniyuki Iwashima [Tue, 18 Jul 2023 17:41:49 +0000 (10:41 -0700)]
llc: Check netns in llc_dgram_match().

We will remove this restriction in llc_rcv() soon, which means that the
protocol handler must be aware of netns.

if (!net_eq(dev_net(dev), &init_net))
goto drop;

llc_rcv() fetches llc_type_handlers[llc_pdu_type(skb) - 1] and calls it
if not NULL.

If the PDU type is LLC_DEST_SAP, llc_sap_handler() is called to pass skb
to corresponding sockets.  Then, we must look up a proper socket in the
same netns with skb->dev.

If the destination is a multicast address, llc_sap_handler() calls
llc_sap_mcast().  It calculates a hash based on DSAP and skb->dev->ifindex,
iterates on a socket list, and calls llc_mcast_match() to check if the
socket is the correct destination.  Then, llc_mcast_match() checks if
skb->dev matches with llc_sk(sk)->dev.  So, we need not check netns here.

OTOH, if the destination is a unicast address, llc_sap_handler() calls
llc_lookup_dgram() to look up a socket, but it does not check the netns.

Therefore, we need to add netns check in llc_lookup_dgram().

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
14 months agofbdev: Explicitly include correct DT includes
Rob Herring [Tue, 18 Jul 2023 14:32:26 +0000 (08:32 -0600)]
fbdev: Explicitly include correct DT includes

The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agofbdev: ep93xx-fb: fix return value check in ep93xxfb_probe
Yuanjun Gong [Mon, 17 Jul 2023 14:48:09 +0000 (22:48 +0800)]
fbdev: ep93xx-fb: fix return value check in ep93xxfb_probe

function clk_prepare_enable may fail in ep93xxfb_probe, therefore,
add a return value check to clk_prepare_enable and handle the
error.

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agofbdev: au1200fb: Fix missing IRQ check in au1200fb_drv_probe
Zhang Shurong [Sat, 15 Jul 2023 08:16:56 +0000 (16:16 +0800)]
fbdev: au1200fb: Fix missing IRQ check in au1200fb_drv_probe

This func misses checking for platform_get_irq()'s call and may passes the
negative error codes to request_irq(), which takes unsigned IRQ #,
causing it to fail with -EINVAL, overriding an original error code.

Fix this by stop calling request_irq() with invalid IRQ #s.

Fixes: 1630d85a8312 ("au1200fb: fix hardcoded IRQ")
Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agofbdev: kyro: make some const read-only arrays static and reduce type size
Colin Ian King [Wed, 12 Jul 2023 16:11:23 +0000 (17:11 +0100)]
fbdev: kyro: make some const read-only arrays static and reduce type size

Don't populate the const read-only arrays on the stack but instead
make them static const. Use smaller types to use less storage for
the arrays.  Also makes the object code a little smaller.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agofbcon: remove unused display (p) from fbcon_redraw()
Jiri Slaby (SUSE) [Wed, 12 Jul 2023 08:59:42 +0000 (10:59 +0200)]
fbcon: remove unused display (p) from fbcon_redraw()

The parameter is unused.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agosticon: make sticon_set_def_font() void and remove op parameter
Jiri Slaby (SUSE) [Wed, 12 Jul 2023 08:59:41 +0000 (10:59 +0200)]
sticon: make sticon_set_def_font() void and remove op parameter

sticon_set_def_font() always returns 0, so make it void. And remove an
unused 'op' parameter.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agovgacon: cache vc_cell_height in vgacon_cursor()
Jiri Slaby (SUSE) [Wed, 12 Jul 2023 08:59:40 +0000 (10:59 +0200)]
vgacon: cache vc_cell_height in vgacon_cursor()

There are many places c->vc_cell_height is used in the code of
vgacon_cursor(). Caching the value to a local variable makes the code
much easier to follow.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agovgacon: let vgacon_doresize() return void
Jiri Slaby (SUSE) [Wed, 12 Jul 2023 08:59:39 +0000 (10:59 +0200)]
vgacon: let vgacon_doresize() return void

The return value is neither used, nor vgacon_doresize() returns an
error. So change the reurn type to void.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agovgacon: remove unused xpos from vgacon_set_cursor_size()
Jiri Slaby (SUSE) [Wed, 12 Jul 2023 08:59:38 +0000 (10:59 +0200)]
vgacon: remove unused xpos from vgacon_set_cursor_size()

xpos is unused, remove it.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agovgacon: remove unneeded forward declarations
Jiri Slaby (SUSE) [Wed, 12 Jul 2023 08:59:37 +0000 (10:59 +0200)]
vgacon: remove unneeded forward declarations

Most of the forward declarations in vgacon are not needed. Drop them.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agovgacon: switch vgacon_scrolldelta() and vgacon_restore_screen()
Jiri Slaby (SUSE) [Wed, 12 Jul 2023 08:59:36 +0000 (10:59 +0200)]
vgacon: switch vgacon_scrolldelta() and vgacon_restore_screen()

Switch vgacon_scrolldelta() and vgacon_restore_screen() positions, so
that the former is not needed to be forward-declared.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
14 months agonet: ethernet: mtk_eth_soc: always mtk_get_ib1_pkt_type
Daniel Golle [Wed, 19 Jul 2023 00:39:36 +0000 (01:39 +0100)]
net: ethernet: mtk_eth_soc: always mtk_get_ib1_pkt_type

entries and bind debugfs files would display wrong data on NETSYS_V2 and
later because instead of using mtk_get_ib1_pkt_type the driver would use
MTK_FOE_IB1_PACKET_TYPE which corresponds to NETSYS_V1(.x) SoCs.
Use mtk_get_ib1_pkt_type so entries and bind records display correctly.

Fixes: 03a3180e5c09e ("net: ethernet: mtk_eth_soc: introduce flow offloading support for mt7986")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/c0ae03d0182f4d27b874cbdf0059bc972c317f3c.1689727134.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoMerge branch 'r8169-revert-two-changes-that-caused-regressions'
Jakub Kicinski [Thu, 20 Jul 2023 04:09:14 +0000 (21:09 -0700)]
Merge branch 'r8169-revert-two-changes-that-caused-regressions'

Heiner Kallweit says:

====================
r8169: revert two changes that caused regressions

This reverts two changes that caused regressions.
====================

Link: https://lore.kernel.org/r/ddadceae-19c9-81b8-47b5-a4ff85e2563a@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoRevert "r8169: disable ASPM during NAPI poll"
Heiner Kallweit [Tue, 18 Jul 2023 11:12:32 +0000 (13:12 +0200)]
Revert "r8169: disable ASPM during NAPI poll"

This reverts commit e1ed3e4d91112027b90c7ee61479141b3f948e6a.

Turned out the change causes a performance regression.

Link: https://lore.kernel.org/netdev/20230713124914.GA12924@green245/T/
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/055c6bc2-74fa-8c67-9897-3f658abb5ae7@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agor8169: revert 2ab19de62d67 ("r8169: remove ASPM restrictions now that ASPM is disable...
Heiner Kallweit [Tue, 18 Jul 2023 11:11:31 +0000 (13:11 +0200)]
r8169: revert 2ab19de62d67 ("r8169: remove ASPM restrictions now that ASPM is disabled during NAPI poll")

There have been reports that on a number of systems this change breaks
network connectivity. Therefore effectively revert it. Mainly affected
seem to be systems where BIOS denies ASPM access to OS.
Due to later changes we can't do a direct revert.

Fixes: 2ab19de62d67 ("r8169: remove ASPM restrictions now that ASPM is disabled during NAPI poll")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/netdev/e47bac0d-e802-65e1-b311-6acb26d5cf10@freenet.de/T/
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217596
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/57f13ec0-b216-d5d8-363d-5b05528ec5fb@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoRevert "tcp: avoid the lookup process failing to get sk in ehash table"
Kuniyuki Iwashima [Mon, 17 Jul 2023 21:59:18 +0000 (14:59 -0700)]
Revert "tcp: avoid the lookup process failing to get sk in ehash table"

This reverts commit 3f4ca5fafc08881d7a57daa20449d171f2887043.

Commit 3f4ca5fafc08 ("tcp: avoid the lookup process failing to get sk in
ehash table") reversed the order in how a socket is inserted into ehash
to fix an issue that ehash-lookup could fail when reqsk/full sk/twsk are
swapped.  However, it introduced another lookup failure.

The full socket in ehash is allocated from a slab with SLAB_TYPESAFE_BY_RCU
and does not have SOCK_RCU_FREE, so the socket could be reused even while
it is being referenced on another CPU doing RCU lookup.

Let's say a socket is reused and inserted into the same hash bucket during
lookup.  After the blamed commit, a new socket is inserted at the end of
the list.  If that happens, we will skip sockets placed after the previous
position of the reused socket, resulting in ehash lookup failure.

As described in Documentation/RCU/rculist_nulls.rst, we should insert a
new socket at the head of the list to avoid such an issue.

This issue, the swap-lookup-failure, and another variant reported in [0]
can all be handled properly by adding a locked ehash lookup suggested by
Eric Dumazet [1].

However, this issue could occur for every packet, thus more likely than
the other two races, so let's revert the change for now.

Link: https://lore.kernel.org/netdev/20230606064306.9192-1-duanmuquan@baidu.com/
Link: https://lore.kernel.org/netdev/CANn89iK8snOz8TYOhhwfimC7ykYA78GA3Nyv8x06SZYa1nKdyA@mail.gmail.com/
Fixes: 3f4ca5fafc08 ("tcp: avoid the lookup process failing to get sk in ehash table")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230717215918.15723-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoMerge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Jakub Kicinski [Wed, 19 Jul 2023 22:01:10 +0000 (15:01 -0700)]
Merge tag 'for-netdev' of https://git./linux/kernel/git/bpf/bpf

Alexei Starovoitov says:

====================
pull-request: bpf 2023-07-19

We've added 4 non-merge commits during the last 1 day(s) which contain
a total of 3 files changed, 55 insertions(+), 10 deletions(-).

The main changes are:

1) Fix stack depth check in presence of async callbacks,
   from Kumar Kartikeya Dwivedi.

2) Fix BTI type used for freplace attached functions,
   from Alexander Duyck.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf, arm64: Fix BTI type used for freplace attached functions
  selftests/bpf: Add more tests for check_max_stack_depth bug
  bpf: Repeat check_max_stack_depth for async callbacks
  bpf: Fix subprog idx logic in check_max_stack_depth
====================

Link: https://lore.kernel.org/r/20230719174502.74023-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoRevert "intel_idle: Add support for using intel_idle in a VM guest using just hlt"
Rafael J. Wysocki [Wed, 19 Jul 2023 18:10:03 +0000 (20:10 +0200)]
Revert "intel_idle: Add support for using intel_idle in a VM guest using just hlt"

This reverts commit 2f3d08f074b0 ("intel_idle: Add support for using
intel_idle in a VM guest using just hlt"), because it causes functional
issues to appear and it is not really useful without a related commit
that got reverted previously.

Link: https://lore.kernel.org/linux-pm/5c7de6d5-7706-c4a5-7c41-146db1269aff@intel.com
Reported-by: Xiaoyao Li <xiaoyao.li@intel.com>
Requested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
14 months agoRevert "intel_idle: Add a "Long HLT" C1 state for the VM guest mode"
Rafael J. Wysocki [Wed, 19 Jul 2023 17:57:39 +0000 (19:57 +0200)]
Revert "intel_idle: Add a "Long HLT" C1 state for the VM guest mode"

This reverts commit 0fac214bb75e ("intel_idle: Add a "Long HLT" C1 state
for the VM guest mode"), because there is a coding mistake in it and its
validity is questioned.

Link: https://lore.kernel.org/all/20230711132553.GN3062772@hirez.programming.kicks-ass.net
Requested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
14 months agoMerge tag 'fuse-update-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...
Linus Torvalds [Wed, 19 Jul 2023 18:00:27 +0000 (11:00 -0700)]
Merge tag 'fuse-update-6.5' of git://git./linux/kernel/git/mszeredi/fuse

Pull fuse fixes from Miklos Szeredi:
 "Small but important fixes and a trivial cleanup"

* tag 'fuse-update-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: ioctl: translate ENOSYS in outarg
  fuse: revalidate: don't invalidate if interrupted
  fuse: Apply flags2 only when userspace set the FUSE_INIT_EXT
  fuse: remove duplicate check for nodeid
  fuse: add feature flag for expire-only

14 months agoRevert "intel_idle: Add __init annotation to matchup_vm_state_with_baremetal()"
Rafael J. Wysocki [Wed, 19 Jul 2023 17:56:08 +0000 (19:56 +0200)]
Revert "intel_idle: Add __init annotation to matchup_vm_state_with_baremetal()"

This reverts commit b2918089d5cb ("intel_idle: Add __init annotation to
matchup_vm_state_with_baremetal()"), because the commit fixed by it will
be reverted.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
14 months agoALSA: hda/realtek: Enable Mute LED on HP Laptop 15s-eq2xxx
Luka Guzenko [Tue, 18 Jul 2023 16:12:41 +0000 (18:12 +0200)]
ALSA: hda/realtek: Enable Mute LED on HP Laptop 15s-eq2xxx

The HP Laptop 15s-eq2xxx uses ALC236 codec and controls the mute LED using
COEF 0x07 index 1. No existing quirk covers this configuration.
Adds a new quirk and enables it for the device.

Signed-off-by: Luka Guzenko <l.guzenko@web.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230718161241.393181-1-l.guzenko@web.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
14 months agoselftests: ALSA: Add test-pcmtest-driver to .gitignore
Takashi Iwai [Wed, 19 Jul 2023 11:43:36 +0000 (13:43 +0200)]
selftests: ALSA: Add test-pcmtest-driver to .gitignore

It was forgotten to add the new binary to .gitignore.  Let's fix it.

Fixes: 10b98a4db11a ("selftests: ALSA: Add test for the 'pcmtest' driver")
Link: https://lore.kernel.org/r/20230719114336.18409-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
14 months agoregcache: Push async I/O request down into the rbtree cache
Mark Brown [Tue, 18 Jul 2023 23:30:40 +0000 (00:30 +0100)]
regcache: Push async I/O request down into the rbtree cache

Currently the regcache core unconditionally enables async I/O for all cache
types, causing problems for the maple tree cache which dynamically allocates
the buffers used to write registers to the device since async requires the
buffers to be kept around until the I/O has been completed.

This use of async I/O is mainly for the rbtree cache which stores data in
a format directly usable for regmap_raw_write(), though there is a special
case for single register writes which would also have allowed it to be used
with the flat cache. It is a bit of a landmine for other caches since it
implicitly converts sync operations to async, and with modern hardware it
is not clear that async I/O is actually a performance win as shown by the
performance work David Jander did with SPI. In multi core systems the cost
of managing concurrency ends up swamping the performance benefit and almost
all modern systems are multi core.

Address this by pushing the enablement of async I/O down into the rbtree
cache where it is actively used, avoiding surprises for other cache
implementations.

Reported-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Fixes: bfa0b38c1483 ("regmap: maple: Implement block sync for the maple tree cache")
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Tested-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230719-regcache-async-rbtree-v1-1-b03d30cf1daf@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
14 months agogpio: mvebu: Make use of devm_pwmchip_add
Uwe Kleine-König [Mon, 17 Jul 2023 14:27:43 +0000 (16:27 +0200)]
gpio: mvebu: Make use of devm_pwmchip_add

This allows to get rid of a call to pwmchip_remove() in the error path. There
is no .remove function for this driver, so this change fixes a resource leak
when a gpio-mvebu device is unbound.

Fixes: 757642f9a584 ("gpio: mvebu: Add limited PWM support")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
14 months agoRevert "powerpc/64s: Remove support for ELFv1 little endian userspace"
Andrew Donnellan [Wed, 19 Jul 2023 07:18:21 +0000 (17:18 +1000)]
Revert "powerpc/64s: Remove support for ELFv1 little endian userspace"

This reverts commit 606787fed7268feb256957872586370b56af697a.

ELFv1 with LE has never been a thing, and people who try to make ELFv1 LE
binaries are maniacs who need to be stopped, but unfortunately there are
ELFv1 LE binaries out there in the wild.

One such binary is the ppc64el (as Debian calls it) helper for
arch-test[0], a tool for detecting architectures that can be executed on a
given machine by means of attempting to execute helper binaries compiled
for each architecture and seeing which binaries succeed and fail. The
helpers are small snippets of assembly, and the ppc64el assembly doesn't
include the right directives to generate an ELFv2 binary.

This results in arch-test incorrectly determining that a ppc64el kernel
can't execute a ppc64el userspace, which in turn means that a number of
developer tools such as debootstrap will break (assuming arch-test is
installed).

[0] https://github.com/kilobyte/arch-test

Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230719071821.320594-1-ajd@linux.ibm.com
14 months agoipv4: ip_gre: fix return value check in erspan_xmit()
Yuanjun Gong [Mon, 17 Jul 2023 14:49:18 +0000 (22:49 +0800)]
ipv4: ip_gre: fix return value check in erspan_xmit()

goto free_skb if an unexpected result is returned by pskb_tirm()
in erspan_xmit().

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 months agoipv4: ip_gre: fix return value check in erspan_fb_xmit()
Yuanjun Gong [Mon, 17 Jul 2023 14:49:02 +0000 (22:49 +0800)]
ipv4: ip_gre: fix return value check in erspan_fb_xmit()

goto err_free_skb if an unexpected result is returned by pskb_tirm()
in erspan_fb_xmit().

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 months agodrivers:net: fix return value check in ocelot_fdma_receive_skb
Yuanjun Gong [Mon, 17 Jul 2023 14:46:52 +0000 (22:46 +0800)]
drivers:net: fix return value check in ocelot_fdma_receive_skb

ocelot_fdma_receive_skb should return false if an unexpected
value is returned by pskb_trim.

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 months agodrivers: net: fix return value check in emac_tso_csum()
Yuanjun Gong [Mon, 17 Jul 2023 14:46:21 +0000 (22:46 +0800)]
drivers: net: fix return value check in emac_tso_csum()

in emac_tso_csum(), return an error code if an unexpected value
is returned by pskb_trim().

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 months agonet:ipv6: check return value of pskb_trim()
Yuanjun Gong [Mon, 17 Jul 2023 14:45:19 +0000 (22:45 +0800)]
net:ipv6: check return value of pskb_trim()

goto tx_err if an unexpected result is returned by pskb_tirm()
in ip6erspan_tunnel_xmit().

Fixes: 5a963eb61b7c ("ip6_gre: Add ERSPAN native tunnel support")
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 months agogpio: tps68470: Make tps68470_gpio_output() always set the initial value
Hans de Goede [Mon, 10 Jul 2023 12:34:25 +0000 (14:34 +0200)]
gpio: tps68470: Make tps68470_gpio_output() always set the initial value

Make tps68470_gpio_output() call tps68470_gpio_set() for output-only pins
too, so that the initial value passed to gpiod_direction_output() is
honored for these pins too.

Fixes: 275b13a65547 ("gpio: Add support for TPS68470 GPIOs")
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Tested-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
14 months agonet: ipv4: Use kfree_sensitive instead of kfree
Wang Ming [Mon, 17 Jul 2023 09:59:19 +0000 (17:59 +0800)]
net: ipv4: Use kfree_sensitive instead of kfree

key might contain private part of the key, so better use
kfree_sensitive to free it.

Fixes: 38320c70d282 ("[IPSEC]: Use crypto_aead and authenc in ESP")
Signed-off-by: Wang Ming <machel@vivo.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 months agodrm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP
Ben Skeggs [Wed, 19 Jul 2023 04:40:51 +0000 (14:40 +1000)]
drm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP

Fixes OOPS on boards with ANX9805 DP encoders.

Cc: stable@vger.kernel.org # 6.4+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719044051.6975-3-skeggsb@gmail.com
14 months agodrm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts
Ben Skeggs [Wed, 19 Jul 2023 04:40:50 +0000 (14:40 +1000)]
drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts

Fixes crash on boards with ANX9805 TMDS/DP encoders.

Cc: stable@vger.kernel.org # 6.4+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719044051.6975-2-skeggsb@gmail.com
14 months agodrm/nouveau/i2c: fix number of aux event slots
Ben Skeggs [Wed, 19 Jul 2023 04:40:49 +0000 (14:40 +1000)]
drm/nouveau/i2c: fix number of aux event slots

This was completely bogus before, using maximum DCB device index rather
than maximum AUX ID to size the buffer that stores event refcounts.

*Pretty* unlikely to have been an actual problem on most configurations,
that is, unless you've got one of the rare boards that have off-chip DP.

There, it'll likely crash.

Cc: stable@vger.kernel.org # 6.4+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719044051.6975-1-skeggsb@gmail.com
14 months agoMerge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Jakub Kicinski [Wed, 19 Jul 2023 02:49:08 +0000 (19:49 -0700)]
Merge branch '40GbE' of git://git./linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2023-07-17 (iavf)

This series contains updates to iavf driver only.

Ding Hui fixes use-after-free issue by calling netif_napi_del() for all
allocated q_vectors. He also resolves out-of-bounds issue by not
updating to new values when timeout is encountered.

Marcin and Ahmed change the way resets are handled so that the callback
operating under the RTNL lock will wait for the reset to finish, the
rtnl_lock sensitive functions in reset flow will schedule the netdev update
for later in order to remove circular dependency with the critical lock.

* '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  iavf: fix reset task race with iavf_remove()
  iavf: fix a deadlock caused by rtnl and driver's lock circular dependencies
  Revert "iavf: Do not restart Tx queues after reset task failure"
  Revert "iavf: Detach device during reset task"
  iavf: Wait for reset in callbacks which trigger it
  iavf: use internal state to free traffic IRQs
  iavf: Fix out-of-bounds when setting channels on remove
  iavf: Fix use-after-free in free_netdev
====================

Link: https://lore.kernel.org/r/20230717175205.3217774-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoMerge branch 'tcp-annotate-data-races-in-tcp_rsk-req'
Jakub Kicinski [Wed, 19 Jul 2023 02:45:29 +0000 (19:45 -0700)]
Merge branch 'tcp-annotate-data-races-in-tcp_rsk-req'

Eric Dumazet says:

====================
tcp: annotate data-races in tcp_rsk(req)

Small series addressing two syzbot reports around tcp_rsk(req)
====================

Link: https://lore.kernel.org/r/20230717144445.653164-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agotcp: annotate data-races around tcp_rsk(req)->ts_recent
Eric Dumazet [Mon, 17 Jul 2023 14:44:45 +0000 (14:44 +0000)]
tcp: annotate data-races around tcp_rsk(req)->ts_recent

TCP request sockets are lockless, tcp_rsk(req)->ts_recent
can change while being read by another cpu as syzbot noticed.

This is harmless, but we should annotate the known races.

Note that tcp_check_req() changes req->ts_recent a bit early,
we might change this in the future.

BUG: KCSAN: data-race in tcp_check_req / tcp_check_req

write to 0xffff88813c8afb84 of 4 bytes by interrupt on cpu 1:
tcp_check_req+0x694/0xc70 net/ipv4/tcp_minisocks.c:762
tcp_v4_rcv+0x12db/0x1b70 net/ipv4/tcp_ipv4.c:2071
ip_protocol_deliver_rcu+0x356/0x6d0 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x13c/0x1a0 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:303 [inline]
ip_local_deliver+0xec/0x1c0 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:468 [inline]
ip_rcv_finish net/ipv4/ip_input.c:449 [inline]
NF_HOOK include/linux/netfilter.h:303 [inline]
ip_rcv+0x197/0x270 net/ipv4/ip_input.c:569
__netif_receive_skb_one_core net/core/dev.c:5493 [inline]
__netif_receive_skb+0x90/0x1b0 net/core/dev.c:5607
process_backlog+0x21f/0x380 net/core/dev.c:5935
__napi_poll+0x60/0x3b0 net/core/dev.c:6498
napi_poll net/core/dev.c:6565 [inline]
net_rx_action+0x32b/0x750 net/core/dev.c:6698
__do_softirq+0xc1/0x265 kernel/softirq.c:571
do_softirq+0x7e/0xb0 kernel/softirq.c:472
__local_bh_enable_ip+0x64/0x70 kernel/softirq.c:396
local_bh_enable+0x1f/0x20 include/linux/bottom_half.h:33
rcu_read_unlock_bh include/linux/rcupdate.h:843 [inline]
__dev_queue_xmit+0xabb/0x1d10 net/core/dev.c:4271
dev_queue_xmit include/linux/netdevice.h:3088 [inline]
neigh_hh_output include/net/neighbour.h:528 [inline]
neigh_output include/net/neighbour.h:542 [inline]
ip_finish_output2+0x700/0x840 net/ipv4/ip_output.c:229
ip_finish_output+0xf4/0x240 net/ipv4/ip_output.c:317
NF_HOOK_COND include/linux/netfilter.h:292 [inline]
ip_output+0xe5/0x1b0 net/ipv4/ip_output.c:431
dst_output include/net/dst.h:458 [inline]
ip_local_out net/ipv4/ip_output.c:126 [inline]
__ip_queue_xmit+0xa4d/0xa70 net/ipv4/ip_output.c:533
ip_queue_xmit+0x38/0x40 net/ipv4/ip_output.c:547
__tcp_transmit_skb+0x1194/0x16e0 net/ipv4/tcp_output.c:1399
tcp_transmit_skb net/ipv4/tcp_output.c:1417 [inline]
tcp_write_xmit+0x13ff/0x2fd0 net/ipv4/tcp_output.c:2693
__tcp_push_pending_frames+0x6a/0x1a0 net/ipv4/tcp_output.c:2877
tcp_push_pending_frames include/net/tcp.h:1952 [inline]
__tcp_sock_set_cork net/ipv4/tcp.c:3336 [inline]
tcp_sock_set_cork+0xe8/0x100 net/ipv4/tcp.c:3343
rds_tcp_xmit_path_complete+0x3b/0x40 net/rds/tcp_send.c:52
rds_send_xmit+0xf8d/0x1420 net/rds/send.c:422
rds_send_worker+0x42/0x1d0 net/rds/threads.c:200
process_one_work+0x3e6/0x750 kernel/workqueue.c:2408
worker_thread+0x5f2/0xa10 kernel/workqueue.c:2555
kthread+0x1d7/0x210 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

read to 0xffff88813c8afb84 of 4 bytes by interrupt on cpu 0:
tcp_check_req+0x32a/0xc70 net/ipv4/tcp_minisocks.c:622
tcp_v4_rcv+0x12db/0x1b70 net/ipv4/tcp_ipv4.c:2071
ip_protocol_deliver_rcu+0x356/0x6d0 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x13c/0x1a0 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:303 [inline]
ip_local_deliver+0xec/0x1c0 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:468 [inline]
ip_rcv_finish net/ipv4/ip_input.c:449 [inline]
NF_HOOK include/linux/netfilter.h:303 [inline]
ip_rcv+0x197/0x270 net/ipv4/ip_input.c:569
__netif_receive_skb_one_core net/core/dev.c:5493 [inline]
__netif_receive_skb+0x90/0x1b0 net/core/dev.c:5607
process_backlog+0x21f/0x380 net/core/dev.c:5935
__napi_poll+0x60/0x3b0 net/core/dev.c:6498
napi_poll net/core/dev.c:6565 [inline]
net_rx_action+0x32b/0x750 net/core/dev.c:6698
__do_softirq+0xc1/0x265 kernel/softirq.c:571
run_ksoftirqd+0x17/0x20 kernel/softirq.c:939
smpboot_thread_fn+0x30a/0x4a0 kernel/smpboot.c:164
kthread+0x1d7/0x210 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

value changed: 0x1cd237f1 -> 0x1cd237f2

Fixes: 079096f103fa ("tcp/dccp: install syn_recv requests into ehash table")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230717144445.653164-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agotcp: annotate data-races around tcp_rsk(req)->txhash
Eric Dumazet [Mon, 17 Jul 2023 14:44:44 +0000 (14:44 +0000)]
tcp: annotate data-races around tcp_rsk(req)->txhash

TCP request sockets are lockless, some of their fields
can change while being read by another cpu as syzbot noticed.

This is usually harmless, but we should annotate the known
races.

This patch takes care of tcp_rsk(req)->txhash,
a separate one is needed for tcp_rsk(req)->ts_recent.

BUG: KCSAN: data-race in tcp_make_synack / tcp_rtx_synack

write to 0xffff8881362304bc of 4 bytes by task 32083 on cpu 1:
tcp_rtx_synack+0x9d/0x2a0 net/ipv4/tcp_output.c:4213
inet_rtx_syn_ack+0x38/0x80 net/ipv4/inet_connection_sock.c:880
tcp_check_req+0x379/0xc70 net/ipv4/tcp_minisocks.c:665
tcp_v6_rcv+0x125b/0x1b20 net/ipv6/tcp_ipv6.c:1673
ip6_protocol_deliver_rcu+0x92f/0xf30 net/ipv6/ip6_input.c:437
ip6_input_finish net/ipv6/ip6_input.c:482 [inline]
NF_HOOK include/linux/netfilter.h:303 [inline]
ip6_input+0xbd/0x1b0 net/ipv6/ip6_input.c:491
dst_input include/net/dst.h:468 [inline]
ip6_rcv_finish+0x1e2/0x2e0 net/ipv6/ip6_input.c:79
NF_HOOK include/linux/netfilter.h:303 [inline]
ipv6_rcv+0x74/0x150 net/ipv6/ip6_input.c:309
__netif_receive_skb_one_core net/core/dev.c:5452 [inline]
__netif_receive_skb+0x90/0x1b0 net/core/dev.c:5566
netif_receive_skb_internal net/core/dev.c:5652 [inline]
netif_receive_skb+0x4a/0x310 net/core/dev.c:5711
tun_rx_batched+0x3bf/0x400
tun_get_user+0x1d24/0x22b0 drivers/net/tun.c:1997
tun_chr_write_iter+0x18e/0x240 drivers/net/tun.c:2043
call_write_iter include/linux/fs.h:1871 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x4ab/0x7d0 fs/read_write.c:584
ksys_write+0xeb/0x1a0 fs/read_write.c:637
__do_sys_write fs/read_write.c:649 [inline]
__se_sys_write fs/read_write.c:646 [inline]
__x64_sys_write+0x42/0x50 fs/read_write.c:646
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff8881362304bc of 4 bytes by task 32078 on cpu 0:
tcp_make_synack+0x367/0xb40 net/ipv4/tcp_output.c:3663
tcp_v6_send_synack+0x72/0x420 net/ipv6/tcp_ipv6.c:544
tcp_conn_request+0x11a8/0x1560 net/ipv4/tcp_input.c:7059
tcp_v6_conn_request+0x13f/0x180 net/ipv6/tcp_ipv6.c:1175
tcp_rcv_state_process+0x156/0x1de0 net/ipv4/tcp_input.c:6494
tcp_v6_do_rcv+0x98a/0xb70 net/ipv6/tcp_ipv6.c:1509
tcp_v6_rcv+0x17b8/0x1b20 net/ipv6/tcp_ipv6.c:1735
ip6_protocol_deliver_rcu+0x92f/0xf30 net/ipv6/ip6_input.c:437
ip6_input_finish net/ipv6/ip6_input.c:482 [inline]
NF_HOOK include/linux/netfilter.h:303 [inline]
ip6_input+0xbd/0x1b0 net/ipv6/ip6_input.c:491
dst_input include/net/dst.h:468 [inline]
ip6_rcv_finish+0x1e2/0x2e0 net/ipv6/ip6_input.c:79
NF_HOOK include/linux/netfilter.h:303 [inline]
ipv6_rcv+0x74/0x150 net/ipv6/ip6_input.c:309
__netif_receive_skb_one_core net/core/dev.c:5452 [inline]
__netif_receive_skb+0x90/0x1b0 net/core/dev.c:5566
netif_receive_skb_internal net/core/dev.c:5652 [inline]
netif_receive_skb+0x4a/0x310 net/core/dev.c:5711
tun_rx_batched+0x3bf/0x400
tun_get_user+0x1d24/0x22b0 drivers/net/tun.c:1997
tun_chr_write_iter+0x18e/0x240 drivers/net/tun.c:2043
call_write_iter include/linux/fs.h:1871 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x4ab/0x7d0 fs/read_write.c:584
ksys_write+0xeb/0x1a0 fs/read_write.c:637
__do_sys_write fs/read_write.c:649 [inline]
__se_sys_write fs/read_write.c:646 [inline]
__x64_sys_write+0x42/0x50 fs/read_write.c:646
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x91d25731 -> 0xe79325cd

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 32078 Comm: syz-executor.4 Not tainted 6.5.0-rc1-syzkaller-00033-geb26cbb1a754 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023

Fixes: 58d607d3e52f ("tcp: provide skb->hash to synack packets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230717144445.653164-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoocteontx2-pf: mcs: Generate hash key using ecb(aes)
Subbaraya Sundeep [Mon, 17 Jul 2023 06:16:43 +0000 (11:46 +0530)]
octeontx2-pf: mcs: Generate hash key using ecb(aes)

Hardware generated encryption and ICV tags are found to
be wrong when tested with IEEE MACSEC test vectors.
This is because as per the HRM, the hash key (derived by
AES-ECB block encryption of an all 0s block with the SAK)
has to be programmed by the software in
MCSX_RS_MCS_CPM_TX_SLAVE_SA_PLCY_MEM_4X register.
Hence fix this by generating hash key in software and
configuring in hardware.

Fixes: c54ffc73601c ("octeontx2-pf: mcs: Introduce MACSEC hardware offloading")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://lore.kernel.org/r/1689574603-28093-1-git-send-email-sbhatta@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoigc: Prevent garbled TX queue with XDP ZEROCOPY
Florian Kauer [Mon, 17 Jul 2023 17:54:44 +0000 (10:54 -0700)]
igc: Prevent garbled TX queue with XDP ZEROCOPY

In normal operation, each populated queue item has
next_to_watch pointing to the last TX desc of the packet,
while each cleaned item has it set to 0. In particular,
next_to_use that points to the next (necessarily clean)
item to use has next_to_watch set to 0.

When the TX queue is used both by an application using
AF_XDP with ZEROCOPY as well as a second non-XDP application
generating high traffic, the queue pointers can get in
an invalid state where next_to_use points to an item
where next_to_watch is NOT set to 0.

However, the implementation assumes at several places
that this is never the case, so if it does hold,
bad things happen. In particular, within the loop inside
of igc_clean_tx_irq(), next_to_clean can overtake next_to_use.
Finally, this prevents any further transmission via
this queue and it never gets unblocked or signaled.
Secondly, if the queue is in this garbled state,
the inner loop of igc_clean_tx_ring() will never terminate,
completely hogging a CPU core.

The reason is that igc_xdp_xmit_zc() reads next_to_use
before acquiring the lock, and writing it back
(potentially unmodified) later. If it got modified
before locking, the outdated next_to_use is written
pointing to an item that was already used elsewhere
(and thus next_to_watch got written).

Fixes: 9acf59a752d4 ("igc: Enable TX via AF_XDP zero-copy")
Signed-off-by: Florian Kauer <florian.kauer@linutronix.de>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Tested-by: Kurt Kanzenbach <kurt@linutronix.de>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20230717175444.3217831-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoMerge tag 'linux-can-fixes-for-6.5-20230717' of git://git.kernel.org/pub/scm/linux...
Jakub Kicinski [Wed, 19 Jul 2023 01:33:34 +0000 (18:33 -0700)]
Merge tag 'linux-can-fixes-for-6.5-20230717' of git://git./linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2023-07-17

The 1st patch is by Ziyang Xuan and fixes a possible memory leak in
the receiver handling in the CAN RAW protocol.

YueHaibing contributes a use after free in bcm_proc_show() of the
Broad Cast Manager (BCM) CAN protocol.

The next 2 patches are by me and fix a possible null pointer
dereference in the RX path of the gs_usb driver with activated
hardware timestamps and the candlelight firmware.

The last patch is by Fedor Ross, Marek Vasut and me and targets the
mcp251xfd driver. The polling timeout of __mcp251xfd_chip_set_mode()
is increased to fix bus joining on busy CAN buses and very low bit
rate.

* tag 'linux-can-fixes-for-6.5-20230717' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
  can: mcp251xfd: __mcp251xfd_chip_set_mode(): increase poll timeout
  can: gs_usb: fix time stamp counter initialization
  can: gs_usb: gs_can_open(): improve error handling
  can: bcm: Fix UAF in bcm_proc_show()
  can: raw: fix receiver memory leak
====================

Link: https://lore.kernel.org/r/20230717180938.230816-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agomailmap: Add entry for old intel email
John Fastabend [Mon, 17 Jul 2023 17:33:06 +0000 (10:33 -0700)]
mailmap: Add entry for old intel email

Fix old email to avoid bouncing email from net/drivers and older
netdev work. Anyways my @intel email hasn't been active for years.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20230717173306.38407-1-john.fastabend@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agomailmap: add entries for past lives
Shannon Nelson [Mon, 17 Jul 2023 19:32:42 +0000 (12:32 -0700)]
mailmap: add entries for past lives

Update old emails for my current work email.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://lore.kernel.org/r/20230717193242.43670-1-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoMerge branch 'selftests-tc-increase-timeout-and-add-missing-kconfig'
Jakub Kicinski [Tue, 18 Jul 2023 23:52:15 +0000 (16:52 -0700)]
Merge branch 'selftests-tc-increase-timeout-and-add-missing-kconfig'

Matthieu Baerts says:

====================
selftests: tc: increase timeout and add missing kconfig

When looking for something else in LKFT reports [1], I noticed that the
TC selftest ended with a timeout error:

  not ok 1 selftests: tc-testing: tdc.sh # TIMEOUT 45 seconds

I also noticed most of the tests were skipped because the "teardown
stage" did not complete successfully. It was due to missing kconfig.

These patches fix these two errors plus an extra one because this
selftest reads info from "/proc/net/nf_conntrack". Thank you Pedro for
having helped me fixing these issues [2].

Link: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230711/testrun/18267241/suite/kselftest-tc-testing/test/tc-testing_tdc_sh/log
Link: https://lore.kernel.org/netdev/0e061d4a-9a23-9f58-3b35-d8919de332d7@tessares.net/T/
====================

Link: https://lore.kernel.org/r/20230713-tc-selftests-lkft-v1-0-1eb4fd3a96e7@tessares.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoselftests: tc: add ConnTrack procfs kconfig
Matthieu Baerts [Thu, 13 Jul 2023 21:16:46 +0000 (23:16 +0200)]
selftests: tc: add ConnTrack procfs kconfig

When looking at the TC selftest reports, I noticed one test was failing
because /proc/net/nf_conntrack was not available.

  not ok 373 3992 - Add ct action triggering DNAT tuple conflict
   Could not match regex pattern. Verify command output:
  cat: /proc/net/nf_conntrack: No such file or directory

It is only available if NF_CONNTRACK_PROCFS kconfig is set. So the issue
can be fixed simply by adding it to the list of required kconfig.

Fixes: e46905641316 ("tc-testing: add test for ct DNAT tuple collision")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/netdev/0e061d4a-9a23-9f58-3b35-d8919de332d7@tessares.net/T/
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Tested-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20230713-tc-selftests-lkft-v1-3-1eb4fd3a96e7@tessares.net
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoselftests: tc: add 'ct' action kconfig dep
Matthieu Baerts [Thu, 13 Jul 2023 21:16:45 +0000 (23:16 +0200)]
selftests: tc: add 'ct' action kconfig dep

When looking for something else in LKFT reports [1], I noticed most of
the tests were skipped because the "teardown stage" did not complete
successfully.

Pedro found out this is due to the fact CONFIG_NF_FLOW_TABLE is required
but not listed in the 'config' file. Adding it to the list fixes the
issues on LKFT side. CONFIG_NET_ACT_CT is now set to 'm' in the final
kconfig.

Fixes: c34b961a2492 ("net/sched: act_ct: Create nf flow table per zone")
Cc: stable@vger.kernel.org
Link: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230711/testrun/18267241/suite/kselftest-tc-testing/test/tc-testing_tdc_sh/log
Link: https://lore.kernel.org/netdev/0e061d4a-9a23-9f58-3b35-d8919de332d7@tessares.net/T/
Suggested-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Tested-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20230713-tc-selftests-lkft-v1-2-1eb4fd3a96e7@tessares.net
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agoselftests: tc: set timeout to 15 minutes
Matthieu Baerts [Thu, 13 Jul 2023 21:16:44 +0000 (23:16 +0200)]
selftests: tc: set timeout to 15 minutes

When looking for something else in LKFT reports [1], I noticed that the
TC selftest ended with a timeout error:

  not ok 1 selftests: tc-testing: tdc.sh # TIMEOUT 45 seconds

The timeout had been introduced 3 years ago, see the Fixes commit below.

This timeout is only in place when executing the selftests via the
kselftests runner scripts. I guess this is not what most TC devs are
using and nobody noticed the issue before.

The new timeout is set to 15 minutes as suggested by Pedro [2]. It looks
like it is plenty more time than what it takes in "normal" conditions.

Fixes: 852c8cbf34d3 ("selftests/kselftest/runner.sh: Add 45 second timeout per test")
Cc: stable@vger.kernel.org
Link: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230711/testrun/18267241/suite/kselftest-tc-testing/test/tc-testing_tdc_sh/log
Link: https://lore.kernel.org/netdev/0e061d4a-9a23-9f58-3b35-d8919de332d7@tessares.net/T/
Suggested-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Reviewed-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20230713-tc-selftests-lkft-v1-1-1eb4fd3a96e7@tessares.net
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 months agobpf, arm64: Fix BTI type used for freplace attached functions
Alexander Duyck [Thu, 13 Jul 2023 16:49:31 +0000 (09:49 -0700)]
bpf, arm64: Fix BTI type used for freplace attached functions

When running an freplace attached bpf program on an arm64 system w were
seeing the following issue:
  Unhandled 64-bit el1h sync exception on CPU47, ESR 0x0000000036000003 -- BTI

After a bit of work to track it down I determined that what appeared to be
happening is that the 'bti c' at the start of the program was somehow being
reached after a 'br' instruction. Further digging pointed me toward the
fact that the function was attached via freplace. This in turn led me to
build_plt which I believe is invoking the long jump which is triggering
this error.

To resolve it we can replace the 'bti c' with 'bti jc' and add a comment
explaining why this has to be modified as such.

Fixes: b2ad54e1533e ("bpf, arm64: Implement bpf_arch_text_poke() for arm64")
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Acked-by: Xu Kuohai <xukuohai@huawei.com>
Link: https://lore.kernel.org/r/168926677665.316237.9953845318337455525.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
14 months agoMerge branch 'two-more-fixes-for-check_max_stack_depth'
Alexei Starovoitov [Tue, 18 Jul 2023 22:21:09 +0000 (15:21 -0700)]
Merge branch 'two-more-fixes-for-check_max_stack_depth'

Kumar Kartikeya Dwivedi says:

====================
Two more fixes for check_max_stack_depth

I noticed two more bugs while reviewing the code, description and
examples available in the patches.

One leads to incorrect subprog index to be stored in the frame stack
maintained by the function (leading to incorrect tail_call_reachable
marks, among other things).

The other problem is missing exploration pass of other async callbacks
when they are not called from the main prog. Call chains rooted at them
can thus bypass the stack limits (32 call frames * max permitted stack
depth per function).

Changelog:
----------
v1 -> v2
v1: https://lore.kernel.org/bpf/20230713003118.1327943-1-memxor@gmail.com

 * Fix commit message for patch 2 (Alexei)
====================

Link: https://lore.kernel.org/r/20230717161530.1238-1-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
14 months agoselftests/bpf: Add more tests for check_max_stack_depth bug
Kumar Kartikeya Dwivedi [Mon, 17 Jul 2023 16:15:30 +0000 (21:45 +0530)]
selftests/bpf: Add more tests for check_max_stack_depth bug

Another test which now exercies the path of the verifier where it will
explore call chains rooted at the async callback. Without the prior
fixes, this program loads successfully, which is incorrect.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20230717161530.1238-4-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
14 months agobpf: Repeat check_max_stack_depth for async callbacks
Kumar Kartikeya Dwivedi [Mon, 17 Jul 2023 16:15:29 +0000 (21:45 +0530)]
bpf: Repeat check_max_stack_depth for async callbacks

While the check_max_stack_depth function explores call chains emanating
from the main prog, which is typically enough to cover all possible call
chains, it doesn't explore those rooted at async callbacks unless the
async callback will have been directly called, since unlike non-async
callbacks it skips their instruction exploration as they don't
contribute to stack depth.

It could be the case that the async callback leads to a callchain which
exceeds the stack depth, but this is never reachable while only
exploring the entry point from main subprog. Hence, repeat the check for
the main subprog *and* all async callbacks marked by the symbolic
execution pass of the verifier, as execution of the program may begin at
any of them.

Consider functions with following stack depths:
main: 256
async: 256
foo: 256

main:
    rX = async
    bpf_timer_set_callback(...)

async:
    foo()

Here, async is not descended as it does not contribute to stack depth of
main (since it is referenced using bpf_pseudo_func and not
bpf_pseudo_call). However, when async is invoked asynchronously, it will
end up breaching the MAX_BPF_STACK limit by calling foo.

Hence, in addition to main, we also need to explore call chains
beginning at all async callback subprogs in a program.

Fixes: 7ddc80a476c2 ("bpf: Teach stack depth check about async callbacks.")
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20230717161530.1238-3-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
14 months agobpf: Fix subprog idx logic in check_max_stack_depth
Kumar Kartikeya Dwivedi [Mon, 17 Jul 2023 16:15:28 +0000 (21:45 +0530)]
bpf: Fix subprog idx logic in check_max_stack_depth

The assignment to idx in check_max_stack_depth happens once we see a
bpf_pseudo_call or bpf_pseudo_func. This is not an issue as the rest of
the code performs a few checks and then pushes the frame to the frame
stack, except the case of async callbacks. If the async callback case
causes the loop iteration to be skipped, the idx assignment will be
incorrect on the next iteration of the loop. The value stored in the
frame stack (as the subprogno of the current subprog) will be incorrect.

This leads to incorrect checks and incorrect tail_call_reachable
marking. Save the target subprog in a new variable and only assign to
idx once we are done with the is_async_cb check which may skip pushing
of frame to the frame stack and subsequent stack depth checks and tail
call markings.

Fixes: 7ddc80a476c2 ("bpf: Teach stack depth check about async callbacks.")
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20230717161530.1238-2-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
14 months agoMerge tag 'perf-tools-fixes-for-v6.5-1-2023-07-18' of git://git.kernel.org/pub/scm...
Linus Torvalds [Tue, 18 Jul 2023 21:51:29 +0000 (14:51 -0700)]
Merge tag 'perf-tools-fixes-for-v6.5-1-2023-07-18' of git://git./linux/kernel/git/perf/perf-tools

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Don't group events when computing metrics that require more than the
   maximum number of simultaneously enabled events on AMD systems.

 - Fix multi CU handling in 'perf probe', add a 'perf test' entry to
   regress test it.

 - Make the 'perf test task_exit' stop generating samples by using the
   'dummy' event, all it is testing is if a PERF_RECORD_EXIT is
   generated at the end of a perf session. This makes this perf test to
   stop sometimes failing on some systems due to a full ring buffer.

 - Avoid SEGV if PMU lookup fails for legacy cache terms.

 - Fix libsubcmd SEGV/use-after-free when commands aren't excluded.

 - Fix OpenCSD (ARM64's CoreSight hardware tracing) library path
   resolution when specifying CSLIBS= in the make command line.

 - Fix broken feature check for libtracefs due to external lib changes,
   use the provided pkgconfig file instead future proof it.

 - Sync drm, fcntl, kvm, mount, prctl, socket, vhost, asound, arm64's
   cputype headers with the kernel sources, in some cases this made the
   tools become aware of new kernel APIs such as ioctls and the
   cachestat sysctl.

* tag 'perf-tools-fixes-for-v6.5-1-2023-07-18' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
  perf test task_exit: No need for a cycles event to check if we get an PERF_RECORD_EXIT
  tools headers arm64: Sync arm64's cputype.h with the kernel sources
  tools include UAPI: Sync the sound/asound.h copy with the kernel sources
  tools include UAPI: Sync linux/vhost.h with the kernel sources
  perf beauty: Update copy of linux/socket.h with the kernel sources
  perf parse-events: Avoid SEGV if PMU lookup fails for legacy cache terms
  libsubcmd: Avoid SEGV/use-after-free when commands aren't excluded
  tools headers UAPI: Sync linux/prctl.h with the kernel sources
  perf build: Fix broken feature check for libtracefs due to external lib changes
  tools include UAPI: Sync linux/mount.h copy with the kernel sources
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  tools headers uapi: Sync linux/fcntl.h with the kernel sources
  perf vendor events amd: Fix large metrics
  perf build: Fix library not found error when using CSLIBS
  tools headers UAPI: Sync files changed by new cachestat syscall with the kernel sources
  tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
  perf probe: Read DWARF files from the correct CU
  perf probe: Add test for regression introduced by switch to die_get_decl_file()

14 months agoMerge tag 'mm-hotfixes-stable-2023-07-18-12-28' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Tue, 18 Jul 2023 21:19:42 +0000 (14:19 -0700)]
Merge tag 'mm-hotfixes-stable-2023-07-18-12-28' of git://git./linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
 "Seven hotfixes, six of which are cc:stable and one of which addresses
  a post-6.5 issue"

* tag 'mm-hotfixes-stable-2023-07-18-12-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  maple_tree: fix node allocation testing on 32 bit
  maple_tree: fix 32 bit mas_next testing
  selftests/mm: mkdirty: fix incorrect position of #endif
  maple_tree: set the node limit when creating a new root node
  mm/mlock: fix vma iterator conversion of apply_vma_lock_flags()
  prctl: move PR_GET_AUXV out of PR_MCE_KILL
  selftests/mm: give scripts execute permission

14 months agoio_uring: don't audit the capability check in io_uring_create()
Ondrej Mosnacek [Tue, 18 Jul 2023 11:56:07 +0000 (13:56 +0200)]
io_uring: don't audit the capability check in io_uring_create()

The check being unconditional may lead to unwanted denials reported by
LSMs when a process has the capability granted by DAC, but denied by an
LSM. In the case of SELinux such denials are a problem, since they can't
be effectively filtered out via the policy and when not silenced, they
produce noise that may hide a true problem or an attack.

Since not having the capability merely means that the created io_uring
context will be accounted against the current user's RLIMIT_MEMLOCK
limit, we can disable auditing of denials for this check by using
ns_capable_noaudit() instead of capable().

Fixes: 2b188cc1bb85 ("Add io_uring IO interface")
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2193317
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Link: https://lore.kernel.org/r/20230718115607.65652-1-omosnace@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
14 months agodrm/amdgpu: use a macro to define no xcp partition case
Guchun Chen [Fri, 14 Jul 2023 11:38:16 +0000 (19:38 +0800)]
drm/amdgpu: use a macro to define no xcp partition case

~0 as no xcp partition is used in several places, so improve its
definition by a macro for code consistency.

Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amdgpu/vm: use the same xcp_id from root PD
Guchun Chen [Thu, 13 Jul 2023 07:55:58 +0000 (15:55 +0800)]
drm/amdgpu/vm: use the same xcp_id from root PD

Other PDs/PTs allocation should just use the same xcp_id as that
stored in root PD.

Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amdgpu: fix slab-out-of-bounds issue in amdgpu_vm_pt_create
Guchun Chen [Thu, 13 Jul 2023 07:09:37 +0000 (15:09 +0800)]
drm/amdgpu: fix slab-out-of-bounds issue in amdgpu_vm_pt_create

Recent code set xcp_id stored from file private data when opening
device to amdgpu bo for accounting memory usage etc, but not all
VMs are attached to this fpriv structure like the vm cases in
amdgpu_mes_self_test, otherwise, KASAN will complain below out
of bound access. And more importantly, VM code should not touch
fpriv structure, so drop fpriv code handling from amdgpu_vm_pt.

[   77.292314] BUG: KASAN: slab-out-of-bounds in amdgpu_vm_pt_create+0x17e/0x4b0 [amdgpu]
[   77.293845] Read of size 4 at addr ffff888102c48a48 by task modprobe/1069
[   77.294146] Call Trace:
[   77.294178]  <TASK>
[   77.294208]  dump_stack_lvl+0x49/0x63
[   77.294260]  print_report+0x16f/0x4a6
[   77.294307]  ? amdgpu_vm_pt_create+0x17e/0x4b0 [amdgpu]
[   77.295979]  ? kasan_complete_mode_report_info+0x3c/0x200
[   77.296057]  ? amdgpu_vm_pt_create+0x17e/0x4b0 [amdgpu]
[   77.297556]  kasan_report+0xb4/0x130
[   77.297609]  ? amdgpu_vm_pt_create+0x17e/0x4b0 [amdgpu]
[   77.299202]  __asan_load4+0x6f/0x90
[   77.299272]  amdgpu_vm_pt_create+0x17e/0x4b0 [amdgpu]
[   77.300796]  ? amdgpu_init+0x6e/0x1000 [amdgpu]
[   77.302222]  ? amdgpu_vm_pt_clear+0x750/0x750 [amdgpu]
[   77.303721]  ? preempt_count_sub+0x18/0xc0
[   77.303786]  amdgpu_vm_init+0x39e/0x870 [amdgpu]
[   77.305186]  ? amdgpu_vm_wait_idle+0x90/0x90 [amdgpu]
[   77.306683]  ? kasan_set_track+0x25/0x30
[   77.306737]  ? kasan_save_alloc_info+0x1b/0x30
[   77.306795]  ? __kasan_kmalloc+0x87/0xa0
[   77.306852]  amdgpu_mes_self_test+0x169/0x620 [amdgpu]

v2: without specifying xcp partition for PD/PT bo, the xcp id is -1.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2686
Fixes: 3ebfd221c1a8 ("drm/amdkfd: Store xcp partition id to amdgpu bo")
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amdgpu: Allocate root PD on correct partition
Guchun Chen [Mon, 17 Jul 2023 01:55:07 +0000 (09:55 +0800)]
drm/amdgpu: Allocate root PD on correct partition

file_priv needs to be setup firstly, otherwise, root PD
will always be allocated on partition 0, even if opening
the device from other partitions.

Fixes: 3ebfd221c1a8 ("drm/amdkfd: Store xcp partition id to amdgpu bo")
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amd/display: Keep PHY active for DP displays on DCN31
Nicholas Kazlauskas [Thu, 29 Jun 2023 14:35:59 +0000 (10:35 -0400)]
drm/amd/display: Keep PHY active for DP displays on DCN31

[Why & How]
Port of a change that went into DCN314 to keep the PHY enabled
when we have a connected and active DP display.

The PHY can hang if PHY refclk is disabled inadvertently.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Josip Pavic <josip.pavic@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amd/display: Prevent vtotal from being set to 0
Daniel Miess [Thu, 22 Jun 2023 12:11:48 +0000 (08:11 -0400)]
drm/amd/display: Prevent vtotal from being set to 0

[Why]
In dcn314 DML the destination pipe vtotal was being set
to the crtc adjustment vtotal_min value even in cases
where that value is 0.

[How]
Only set vtotal to the crtc adjustment vtotal_min value
in cases where the value is non-zero.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: Daniel Miess <daniel.miess@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amd/display: Disable MPC split by default on special asic
Zhikai Zhai [Fri, 30 Jun 2023 03:35:14 +0000 (11:35 +0800)]
drm/amd/display: Disable MPC split by default on special asic

[WHY]
All of pipes will be used when the MPC split enable on the dcn
which just has 2 pipes. Then MPO enter will trigger the minimal
transition which need programe dcn from 2 pipes MPC split to 2
pipes MPO. This action will cause lag if happen frequently.

[HOW]
Disable the MPC split for the platform which dcn resource is limited

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: Zhikai Zhai <zhikai.zhai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amd/display: check TG is non-null before checking if enabled
Taimur Hassan [Tue, 20 Jun 2023 21:00:28 +0000 (17:00 -0400)]
drm/amd/display: check TG is non-null before checking if enabled

[Why & How]
If there is no TG allocation we can dereference a NULL pointer when
checking if the TG is enabled.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: Taimur Hassan <syed.hassan@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amd/display: Add polling method to handle MST reply packet
Wayne Lin [Wed, 9 Mar 2022 09:05:05 +0000 (17:05 +0800)]
drm/amd/display: Add polling method to handle MST reply packet

[Why]
Specific TBT4 dock doesn't send out short HPD to notify source
that IRQ event DOWN_REP_MSG_RDY is set. Which violates the spec
and cause source can't send out streams to mst sinks.

[How]
To cover this misbehavior, add an additional polling method to detect
DOWN_REP_MSG_RDY is set. HPD driven handling method is still kept.
Just hook up our handler to drm mgr->cbs->poll_hpd_irq().

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amd/display: Clean up errors & warnings in amdgpu_dm.c
Srinivasan Shanmugam [Sat, 17 Jun 2023 15:39:46 +0000 (21:09 +0530)]
drm/amd/display: Clean up errors & warnings in amdgpu_dm.c

Fix the following errors & warnings reported by checkpatch:

ERROR: space required before the open brace '{'
ERROR: space required before the open parenthesis '('
ERROR: that open brace { should be on the previous line
ERROR: space prohibited before that ',' (ctx:WxW)
ERROR: else should follow close brace '}'
ERROR: open brace '{' following function definitions go on the next line
ERROR: code indent should use tabs where possible

WARNING: braces {} are not necessary for single statement blocks
WARNING: void function return statements are not generally useful
WARNING: Block comments use * on subsequent lines
WARNING: Block comments use a trailing */ on a separate line

Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amdgpu: Allow the initramfs generator to include psp_13_0_6_ta
Candice Li [Wed, 5 Jul 2023 07:00:45 +0000 (15:00 +0800)]
drm/amdgpu: Allow the initramfs generator to include psp_13_0_6_ta

Allow the initramfs generator to automatically include psp_13_0_6_ta
firmware to initramfs.

Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amdgpu/pm: make mclk consistent for smu 13.0.7
Alex Deucher [Tue, 13 Jun 2023 16:36:17 +0000 (12:36 -0400)]
drm/amdgpu/pm: make mclk consistent for smu 13.0.7

Use current uclk to be consistent with other dGPUs.

Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
14 months agodrm/amdgpu/pm: make gfxclock consistent for sienna cichlid
Alex Deucher [Tue, 13 Jun 2023 16:15:38 +0000 (12:15 -0400)]
drm/amdgpu/pm: make gfxclock consistent for sienna cichlid

Use average gfxclock for consistency with other dGPUs.

Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
14 months agodrm/amd/display: only accept async flips for fast updates
Simon Ser [Wed, 21 Jun 2023 20:24:59 +0000 (17:24 -0300)]
drm/amd/display: only accept async flips for fast updates

Up until now, amdgpu was silently degrading to vsync when
user-space requested an async flip but the hardware didn't support
it.

The hardware doesn't support immediate flips when the update changes
the FB pitch, the DCC state, the rotation, enables or disables CRTCs
or planes, etc. This is reflected in the dm_crtc_state.update_type
field: UPDATE_TYPE_FAST means that immediate flip is supported.

Silently degrading async flips to vsync is not the expected behavior
from a uAPI point-of-view. Xorg expects async flips to fail if
unsupported, to be able to fall back to a blit. i915 already behaves
this way.

This patch aligns amdgpu with uAPI expectations and returns a failure
when an async flip is not possible.

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
14 months agodrm/amdgpu/vkms: relax timer deactivation by hrtimer_try_to_cancel
Guchun Chen [Thu, 6 Jul 2023 07:57:21 +0000 (15:57 +0800)]
drm/amdgpu/vkms: relax timer deactivation by hrtimer_try_to_cancel

In below thousands of screen rotation loop tests with virtual display
enabled, a CPU hard lockup issue may happen, leading system to unresponsive
and crash.

do {
xrandr --output Virtual --rotate inverted
xrandr --output Virtual --rotate right
xrandr --output Virtual --rotate left
xrandr --output Virtual --rotate normal
} while (1);

NMI watchdog: Watchdog detected hard LOCKUP on cpu 1

? hrtimer_run_softirq+0x140/0x140
? store_vblank+0xe0/0xe0 [drm]
hrtimer_cancel+0x15/0x30
amdgpu_vkms_disable_vblank+0x15/0x30 [amdgpu]
drm_vblank_disable_and_save+0x185/0x1f0 [drm]
drm_crtc_vblank_off+0x159/0x4c0 [drm]
? record_print_text.cold+0x11/0x11
? wait_for_completion_timeout+0x232/0x280
? drm_crtc_wait_one_vblank+0x40/0x40 [drm]
? bit_wait_io_timeout+0xe0/0xe0
? wait_for_completion_interruptible+0x1d7/0x320
? mutex_unlock+0x81/0xd0
amdgpu_vkms_crtc_atomic_disable

It's caused by a stuck in lock dependency in such scenario on different
CPUs.

CPU1                                             CPU2
drm_crtc_vblank_off                              hrtimer_interrupt
    grab event_lock (irq disabled)                   __hrtimer_run_queues
        grab vbl_lock/vblank_time_block                  amdgpu_vkms_vblank_simulate
            amdgpu_vkms_disable_vblank                       drm_handle_vblank
                hrtimer_cancel                                         grab dev->event_lock

So CPU1 stucks in hrtimer_cancel as timer callback is running endless on
current clock base, as that timer queue on CPU2 has no chance to finish it
because of failing to hold the lock. So NMI watchdog will throw the errors
after its threshold, and all later CPUs are impacted/blocked.

So use hrtimer_try_to_cancel to fix this, as disable_vblank callback
does not need to wait the handler to finish. And also it's not necessary
to check the return value of hrtimer_try_to_cancel, because even if it's
-1 which means current timer callback is running, it will be reprogrammed
in hrtimer_start with calling enable_vblank to make it works.

v2: only re-arm timer when vblank is enabled (Christian) and add a Fixes
tag as well

v3: drop warn printing (Christian)

v4: drop superfluous check of blank->enabled in timer function, as it's
guaranteed in drm_handle_vblank (Christian)

Fixes: 84ec374bd580 ("drm/amdgpu: create amdgpu_vkms (v4)")
Cc: stable@vger.kernel.org
Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amd/display: add DCN301 specific logic for OTG programming
Aurabindo Pillai [Wed, 12 Jul 2023 16:35:16 +0000 (12:35 -0400)]
drm/amd/display: add DCN301 specific logic for OTG programming

[Why&How]
DCN301 does not have FAMS hence the workaround needed on other DCN3x
variants related to OTG min/max selector programming is not applicable for it.
Hence isolate it and have it use the old sequence without workaround.

Fixes: 1598fc576420 ("drm/amd/display: Program OTG vtotal min/max selectors unconditionally for DCN1+")
Reviewed-by: Swapnil Patel <swapnil.patel@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amd/display: export some optc function for reuse
Aurabindo Pillai [Tue, 11 Jul 2023 18:14:43 +0000 (14:14 -0400)]
drm/amd/display: export some optc function for reuse

[Why&How]
Make a few functions non static so that they can be reused for other
asic. This is in preparation for separating out OTG programming sequence
for DCN301

Fixes: 1598fc576420 ("drm/amd/display: Program OTG vtotal min/max selectors unconditionally for DCN1+")
Reviewed-by: Swapnil Patel <swapnil.patel@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agodrm/amd: Use amdgpu_device_pcie_dynamic_switching_supported() for SMU7
Mario Limonciello [Sat, 8 Jul 2023 02:26:10 +0000 (21:26 -0500)]
drm/amd: Use amdgpu_device_pcie_dynamic_switching_supported() for SMU7

SMU7 does a check if the dGPU is inserted into a Rocket Lake system,
to turn off DPM.  Extend this check to all systems that have problems
with dynamic switching by using the
amdgpu_device_pcie_dynamic_switching_supported() helper.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
14 months agoMerge tag 'linux-kselftest-fixes-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Tue, 18 Jul 2023 15:56:02 +0000 (08:56 -0700)]
Merge tag 'linux-kselftest-fixes-6.5-rc3' of git://git./linux/kernel/git/shuah/linux-kselftest

Pull Kselftest fixes from Shuah Khan:
 "Fixes to bugs that are interfering with arm64 and risc workflows. Also
  two fixes to timer and mincore tests that are causing test failures"

* tag 'linux-kselftest-fixes-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/arm64: fix build failure during the "emit_tests" step
  selftests/riscv: fix potential build failure during the "emit_tests" step
  tools: timers: fix freq average calculation
  selftests/mincore: fix skip condition for check_huge_pages test

14 months agoMerge tag 'tpmdd-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko...
Linus Torvalds [Tue, 18 Jul 2023 15:43:35 +0000 (08:43 -0700)]
Merge tag 'tpmdd-v6.5-rc3' of git://git./linux/kernel/git/jarkko/linux-tpmdd

Pull tpm fixes from Jarkko Sakkinen.

Mostly interrupt storm fixes, with some other minor changes.

* tag 'tpmdd-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm,tpm_tis: Disable interrupts after 1000 unhandled IRQs
  tpm/tpm_tis: Disable interrupts for Lenovo L590 devices
  tpm: Do not remap from ACPI resources again for Pluton TPM
  tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 13th gen
  tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 12th gen
  security: keys: Modify mismatched function name
  tpm: return false from tpm_amd_is_rng_defective on non-x86 platforms
  keys: Fix linking a duplicate key to a keyring's assoc_array
  tpm: tis_i2c: Limit write bursts to I2C_SMBUS_BLOCK_MAX (32) bytes
  tpm: tis_i2c: Limit read bursts to I2C_SMBUS_BLOCK_MAX (32) bytes
  tpm_tis_spi: Release chip select when flow control fails
  tpm: tpm_tis: Disable interrupts *only* for AEON UPX-i11
  tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation

14 months agoALSA: hda/realtek: Add quirk for Clevo NS70AU
Christoffer Sandberg [Tue, 18 Jul 2023 14:57:22 +0000 (16:57 +0200)]
ALSA: hda/realtek: Add quirk for Clevo NS70AU

Fixes headset detection on Clevo NS70AU.

Co-developed-by: Werner Sembach <wse@tuxedocomputers.com>
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Signed-off-by: Christoffer Sandberg <cs@tuxedo.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230718145722.10592-1-wse@tuxedocomputers.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
14 months agos390/mm: fix per vma lock fault handling
Sven Schnelle [Thu, 13 Jul 2023 13:54:23 +0000 (15:54 +0200)]
s390/mm: fix per vma lock fault handling

With per-vma locks, handle_mm_fault() may return non-fatal error
flags. In this case the code should reset the fault flags before
returning.

Fixes: e06f47a16573 ("s390/mm: try VMA lock-based page fault handling first")
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
14 months agoocteontx2-pf: Dont allocate BPIDs for LBK interfaces
Geetha sowjanya [Sun, 16 Jul 2023 09:37:41 +0000 (15:07 +0530)]
octeontx2-pf: Dont allocate BPIDs for LBK interfaces

Current driver enables backpressure for LBK interfaces.
But these interfaces do not support this feature.
Hence, this patch fixes the issue by skipping the
backpressure configuration for these interfaces.

Fixes: 75f36270990c ("octeontx2-pf: Support to enable/disable pause frames via ethtool").
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Link: https://lore.kernel.org/r/20230716093741.28063-1-gakula@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
14 months agovrf: Fix lockdep splat in output path
Ido Schimmel [Sat, 15 Jul 2023 15:36:05 +0000 (18:36 +0300)]
vrf: Fix lockdep splat in output path

Cited commit converted the neighbour code to use the standard RCU
variant instead of the RCU-bh variant, but the VRF code still uses
rcu_read_lock_bh() / rcu_read_unlock_bh() around the neighbour lookup
code in its IPv4 and IPv6 output paths, resulting in lockdep splats
[1][2]. Can be reproduced using [3].

Fix by switching to rcu_read_lock() / rcu_read_unlock().

[1]
=============================
WARNING: suspicious RCU usage
6.5.0-rc1-custom-g9c099e6dbf98 #403 Not tainted
-----------------------------
include/net/neighbour.h:302 suspicious rcu_dereference_check() usage!

other info that might help us debug this:

rcu_scheduler_active = 2, debug_locks = 1
2 locks held by ping/183:
 #0: ffff888105ea1d80 (sk_lock-AF_INET){+.+.}-{0:0}, at: raw_sendmsg+0xc6c/0x33c0
 #1: ffffffff85b46820 (rcu_read_lock_bh){....}-{1:2}, at: vrf_output+0x2e3/0x2030

stack backtrace:
CPU: 0 PID: 183 Comm: ping Not tainted 6.5.0-rc1-custom-g9c099e6dbf98 #403
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc37 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xc1/0xf0
 lockdep_rcu_suspicious+0x211/0x3b0
 vrf_output+0x1380/0x2030
 ip_push_pending_frames+0x125/0x2a0
 raw_sendmsg+0x200d/0x33c0
 inet_sendmsg+0xa2/0xe0
 __sys_sendto+0x2aa/0x420
 __x64_sys_sendto+0xe5/0x1c0
 do_syscall_64+0x38/0x80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

[2]
=============================
WARNING: suspicious RCU usage
6.5.0-rc1-custom-g9c099e6dbf98 #403 Not tainted
-----------------------------
include/net/neighbour.h:302 suspicious rcu_dereference_check() usage!

other info that might help us debug this:

rcu_scheduler_active = 2, debug_locks = 1
2 locks held by ping6/182:
 #0: ffff888114b63000 (sk_lock-AF_INET6){+.+.}-{0:0}, at: rawv6_sendmsg+0x1602/0x3e50
 #1: ffffffff85b46820 (rcu_read_lock_bh){....}-{1:2}, at: vrf_output6+0xe9/0x1310

stack backtrace:
CPU: 0 PID: 182 Comm: ping6 Not tainted 6.5.0-rc1-custom-g9c099e6dbf98 #403
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc37 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xc1/0xf0
 lockdep_rcu_suspicious+0x211/0x3b0
 vrf_output6+0xd32/0x1310
 ip6_local_out+0xb4/0x1a0
 ip6_send_skb+0xbc/0x340
 ip6_push_pending_frames+0xe5/0x110
 rawv6_sendmsg+0x2e6e/0x3e50
 inet_sendmsg+0xa2/0xe0
 __sys_sendto+0x2aa/0x420
 __x64_sys_sendto+0xe5/0x1c0
 do_syscall_64+0x38/0x80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

[3]
#!/bin/bash

ip link add name vrf-red up numtxqueues 2 type vrf table 10
ip link add name swp1 up master vrf-red type dummy
ip address add 192.0.2.1/24 dev swp1
ip address add 2001:db8:1::1/64 dev swp1
ip neigh add 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm dev swp1
ip neigh add 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud perm dev swp1
ip vrf exec vrf-red ping 192.0.2.2 -c 1 &> /dev/null
ip vrf exec vrf-red ping6 2001:db8:1::2 -c 1 &> /dev/null

Fixes: 09eed1192cec ("neighbour: switch to standard rcu, instead of rcu_bh")
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Link: https://lore.kernel.org/netdev/CA+G9fYtEr-=GbcXNDYo3XOkwR+uYgehVoDjsP0pFLUpZ_AZcyg@mail.gmail.com/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230715153605.4068066-1-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
14 months agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net...
Paolo Abeni [Tue, 18 Jul 2023 09:50:10 +0000 (11:50 +0200)]
Merge branch '100GbE' of git://git./linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2023-07-14 (ice)

This series contains updates to ice driver only.

Petr Oros removes multiple calls made to unregister netdev and
devlink_port.

Michal fixes null pointer dereference that can occur during reload.
====================

Link: https://lore.kernel.org/r/20230714201041.1717834-1-anthony.l.nguyen@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
14 months agoKVM: s390: pv: fix index value of replaced ASCE
Claudio Imbrenda [Wed, 5 Jul 2023 11:19:37 +0000 (13:19 +0200)]
KVM: s390: pv: fix index value of replaced ASCE

The index field of the struct page corresponding to a guest ASCE should
be 0. When replacing the ASCE in s390_replace_asce(), the index of the
new ASCE should also be set to 0.

Having the wrong index might lead to the wrong addresses being passed
around when notifying pte invalidations, and eventually to validity
intercepts (VM crash) if the prefix gets unmapped and the notifier gets
called with the wrong address.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Fixes: faa2f72cb356 ("KVM: s390: pv: leak the topmost page table when destroy fails")
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20230705111937.33472-3-imbrenda@linux.ibm.com>