Linus Torvalds [Sat, 7 Mar 2020 13:59:30 +0000 (07:59 -0600)]
Merge tag 'sound-5.6-rc5' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The regular "bump-in-the-middle" updates, containing mostly ASoC-
related fixes at this time. All changes are reasonably small.
A few entries are for ASoC and ALSA core parts (DAPM, PCM, topology)
for followups of the recent changes and potential buffer overflow by
snprintf(), while the rest are (both new and old) device-specific
fixes for Intel, meson, tas2562, rt1015, as well as the usual HD-audio
quirks"
* tag 'sound-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (25 commits)
ALSA: sgio2audio: Remove usage of dropped hw_params/hw_free functions
ALSA: hda/realtek - Enable the headset of ASUS B9450FA with ALC294
ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master
ALSA: hda/realtek - Add Headset Button supported for ThinkPad X1
ALSA: hda/realtek - Add Headset Mic supported
ASoC: wm8741: Fix typo in Kconfig prompt
ASoC: stm32: sai: manage rebind issue
ASoC: SOF: Fix snd_sof_ipc_stream_posn()
ASoC: rt1015: modify pre-divider for sysclk
ASoC: rt1015: add operation callback function for rt1015_dai[]
ASoC: soc-component: tidyup snd_soc_pcm_component_sync_stop()
ASoC: dapm: Correct DAPM handling of active widgets during shutdown
ASoC: tas2562: Fix sample rate error message
ASoC: Intel: Skylake: Fix available clock counter incrementation
ASoC: soc-pcm/soc-compress: don't use snd_soc_dapm_stream_stop()
ASoC: meson: g12a: add tohdmitx reset
ASoC: pcm512x: Fix unbalanced regulator enable call in probe error path
ASoC: soc-core: fix for_rtd_codec_dai_rollback() macro
ASoC: topology: Fix memleak in soc_tplg_manifest_load()
ASoC: topology: Fix memleak in soc_tplg_link_elems_load()
...
Takashi Iwai [Sat, 7 Mar 2020 06:24:36 +0000 (07:24 +0100)]
Merge tag 'asoc-fix-v5.6-rc4' of https://git./linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.6
More fixes that have arrived since the merge window, spread out all
over. There's a few things like the operation callback addition for
rt1015 and the meson reset addition which add small new bits of
functionality to fix non-working systems, they're all very small and for
parts of newly added functionality.
Linus Torvalds [Fri, 6 Mar 2020 23:03:37 +0000 (17:03 -0600)]
Merge tag 'linux-kselftest-5.6-rc5' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull kselftest update from Shuah Khan:
"This consists of a cleanup patch to undo changes to global .gitignore
that added selftests/lkdtm objects and add them to a local
selftests/lkdtm/.gitignore.
Summary of Linus's comments on local vs. global gitignore scope:
- Keep local gitignore patterns in local files.
- Put only global gitignore patterns in the top-level gitignore file.
Local scope keeps things much better separated. It also incidentally
means that if a directory gets renamed, the gitignore file continues
to work unless in the case of renaming the actual files themselves
that are named in the gitignore"
* tag 'linux-kselftest-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftest/lkdtm: Use local .gitignore
Linus Torvalds [Fri, 6 Mar 2020 22:38:33 +0000 (16:38 -0600)]
Merge tag 'riscv-for-linus-5.6-rc5' of git://git./linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"This contains a handful of fixes that I would like to target for 5.6:
- A pair of fixes to module loading, which we hope solve the last of
the issues with module text being loaded too sparsely for our call
relocations.
- A Kconfig fix that disallows selecting memory models not supported
by NOMMU.
- A series of Kconfig updates to ease selecting the drivers necessary
to run on QEMU's virt platform.
- DTS updates for SiFive's HiFive Unleashed.
- A fix to our seccomp support that avoids mangling restartable
syscalls"
* tag 'riscv-for-linus-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: fix seccomp reject syscall code path
riscv: dts: Add GPIO reboot method to HiFive Unleashed DTS file
RISC-V: Select Goldfish RTC driver for QEMU virt machine
RISC-V: Select SYSCON Reboot and Poweroff for QEMU virt machine
RISC-V: Enable QEMU virt machine support in defconfigs
RISC-V: Add kconfig option for QEMU virt machine
riscv: Fix range looking for kernel image memblock
riscv: Force flat memory model with no-mmu
riscv: Change code model of module to medany to improve data accessing
riscv: avoid the PIC offset of static percpu data in module beyond 2G limits
Jonathan Neuschäfer [Fri, 6 Mar 2020 22:13:11 +0000 (23:13 +0100)]
parse-maintainers: Mark as executable
This makes the script more convenient to run.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 6 Mar 2020 22:11:34 +0000 (16:11 -0600)]
Merge tag 'devicetree-fixes-for-5.6-3' of git://git./linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
"Another batch of DT fixes. I think this should be the last of it, but
sending pull requests seems to cause people to send more fixes.
Summary:
- Fixes for warnings introduced by hierarchical PSCI binding changes
- Fixes for broken doc references due to DT schema conversions
- Several grammar and typo fixes
- Fix a bunch of dtc warnings in examples"
* tag 'devicetree-fixes-for-5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: arm: Fixup the DT bindings for hierarchical PSCI states
dt-bindings: power: Extend nodename pattern for power-domain providers
MAINTAINERS: update ALLWINNER CPUFREQ DRIVER entry
dt-bindings: bus: Drop empty compatible string in example
dt-bindings: power: Convert domain-idle-states bindings to json-schema
dt-bindings: arm: Fix cpu compatibles in the hierarchical example for PSCI
dt-bindings: arm: Correct links to idle states definitions
dt-bindings: mfd: Fix typo in file name of twl-familly.txt
dt-bindings: mfd: tps65910: Improve grammar
dt-bindings: mfd: zii,rave-sp: Fix a typo ("onborad")
dt-bindings: arm: fsl: fix APF6Dev compatible
dt-bindings: Fix dtc warnings in examples
docs: dt: fix several broken doc references
docs: dt: fix several broken references due to renames
MAINTAINERS: clean up PCIE DRIVER FOR CAVIUM THUNDERX
Linus Torvalds [Fri, 6 Mar 2020 22:08:48 +0000 (16:08 -0600)]
Merge tag 'drm-fixes-2020-03-06-1' of git://anongit.freedesktop.org/drm/drm
Pull vgacon fix from Daniel Vetter:
"One vgacon input check for stable"
* tag 'drm-fixes-2020-03-06-1' of git://anongit.freedesktop.org/drm/drm:
vgacon: Fix a UAF in vgacon_invert_region
Linus Torvalds [Fri, 6 Mar 2020 20:56:46 +0000 (14:56 -0600)]
Merge tag 'for-5.6-rc4-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"One fixup for DIO when in use with the new checksums, a missed case
where the checksum size was still assuming u32"
* tag 'for-5.6-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix RAID direct I/O reads with alternate csums
Linus Torvalds [Fri, 6 Mar 2020 20:55:27 +0000 (14:55 -0600)]
Merge tag 'filelock-v5.6-1' of git://git./linux/kernel/git/jlayton/linux
Pull file locking fixes from Jeff Layton:
"Just a couple of late-breaking patches for the file locking code. The
second patch (from yangerkun) fixes a rather nasty looking potential
use-after-free that should go to stable.
The other patch could technically wait for 5.7, but it's fairly
innocuous so I figured we might as well take it"
* tag 'filelock-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
locks: fix a potential use-after-free problem when wakeup a waiter
fcntl: Distribute switch variables for initialization
Linus Torvalds [Fri, 6 Mar 2020 20:50:16 +0000 (14:50 -0600)]
Merge tag 'spi-fix-v5.6-rc4' of git://git./linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A selection of small fixes, mostly for drivers, that have arrived
since the merge window. None of them are earth shattering in
themselves but all useful for affected systems"
* tag 'spi-fix-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spi_register_controller(): free bus id on error paths
spi: bcm63xx-hsspi: Really keep pll clk enabled
spi: atmel-quadspi: fix possible MMIO window size overrun
spi/zynqmp: remove entry that causes a cs glitch
spi: pxa2xx: Add CS control clock quirk
spi: spidev: Fix CS polarity if GPIO descriptors are used
spi: qup: call spi_qup_pm_resume_runtime before suspending
spi: spi-omap2-mcspi: Support probe deferral for DMA channels
spi: spi-omap2-mcspi: Handle DMA size restriction on AM65x
Linus Torvalds [Fri, 6 Mar 2020 20:48:30 +0000 (14:48 -0600)]
Merge tag 'regulator-fix-v5.6-rc4' of git://git./linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A couple of small fixes, one for a minor issue in the stm32-vrefbuf
driver and a documentation fix in the Qualcomm code"
* tag 'regulator-fix-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: stm32-vrefbuf: fix a possible overshoot when re-enabling
regulator: qcom_spmi: Fix docs for PM8004
Linus Torvalds [Fri, 6 Mar 2020 20:47:06 +0000 (14:47 -0600)]
Merge tag 'hwmon-for-v5.6-rc5' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix an error return in the adt7462 driver, bad voltage limits reported
by the xdpe12284 driver, and a broken documentation reference in the
adm1177 driver documentation"
* tag 'hwmon-for-v5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (adt7462) Fix an error return in ADT7462_REG_VOLT()
hwmon: (pmbus/xdpe12284) Add callback for vout limits conversion
docs: adm1177: fix a broken reference
Linus Torvalds [Fri, 6 Mar 2020 20:35:47 +0000 (14:35 -0600)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Here are another three arm64 fixes for 5.6, all pretty minor. Main
thing is fixing a silly bug in the fsl_imx8_ddr PMU driver where we
would zero the counters when disabling them.
- Fix misreporting of ASID limit when KPTI is enabled
- Fix busted NULL pointer checks for GICC structure in ACPI PMU code
- Avoid nobbling the "fsl_imx8_ddr" PMU counters when disabling them"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: context: Fix ASID limit in boot messages
drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer
drivers/perf: fsl_imx8_ddr: Correct the CLEAR bit definition
Zhang Xiaoxu [Wed, 4 Mar 2020 02:24:29 +0000 (10:24 +0800)]
vgacon: Fix a UAF in vgacon_invert_region
When syzkaller tests, there is a UAF:
BUG: KASan: use after free in vgacon_invert_region+0x9d/0x110 at addr
ffff880000100000
Read of size 2 by task syz-executor.1/16489
page:
ffffea0000004000 count:0 mapcount:-127 mapping: (null)
index:0x0
page flags: 0xfffff00000000()
page dumped because: kasan: bad access detected
CPU: 1 PID: 16489 Comm: syz-executor.1 Not tainted
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014
Call Trace:
[<
ffffffffb119f309>] dump_stack+0x1e/0x20
[<
ffffffffb04af957>] kasan_report+0x577/0x950
[<
ffffffffb04ae652>] __asan_load2+0x62/0x80
[<
ffffffffb090f26d>] vgacon_invert_region+0x9d/0x110
[<
ffffffffb0a39d95>] invert_screen+0xe5/0x470
[<
ffffffffb0a21dcb>] set_selection+0x44b/0x12f0
[<
ffffffffb0a3bfae>] tioclinux+0xee/0x490
[<
ffffffffb0a1d114>] vt_ioctl+0xff4/0x2670
[<
ffffffffb0a0089a>] tty_ioctl+0x46a/0x1a10
[<
ffffffffb052db3d>] do_vfs_ioctl+0x5bd/0xc40
[<
ffffffffb052e2f2>] SyS_ioctl+0x132/0x170
[<
ffffffffb11c9b1b>] system_call_fastpath+0x22/0x27
Memory state around the buggy address:
ffff8800000fff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
ffff8800000fff80: 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00
>
ffff880000100000: ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
It can be reproduce in the linux mainline by the program:
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <linux/vt.h>
struct tiocl_selection {
unsigned short xs; /* X start */
unsigned short ys; /* Y start */
unsigned short xe; /* X end */
unsigned short ye; /* Y end */
unsigned short sel_mode; /* selection mode */
};
#define TIOCL_SETSEL 2
struct tiocl {
unsigned char type;
unsigned char pad;
struct tiocl_selection sel;
};
int main()
{
int fd = 0;
const char *dev = "/dev/char/4:1";
struct vt_consize v = {0};
struct tiocl tioc = {0};
fd = open(dev, O_RDWR, 0);
v.v_rows = 3346;
ioctl(fd, VT_RESIZEX, &v);
tioc.type = TIOCL_SETSEL;
ioctl(fd, TIOCLINUX, &tioc);
return 0;
}
When resize the screen, update the 'vc->vc_size_row' to the new_row_size,
but when 'set_origin' in 'vgacon_set_origin', vgacon use 'vga_vram_base'
for 'vc_origin' and 'vc_visible_origin', not 'vc_screenbuf'. It maybe
smaller than 'vc_screenbuf'. When TIOCLINUX, use the new_row_size to calc
the offset, it maybe larger than the vga_vram_size in vgacon driver, then
bad access.
Also, if set an larger screenbuf firstly, then set an more larger
screenbuf, when copy old_origin to new_origin, a bad access may happen.
So, If the screen size larger than vga_vram, resize screen should be
failed. This alse fix CVE-2020-8649 and CVE-2020-8647.
Linus pointed out that overflow checking seems absent. We're saved by
the existing bounds checks in vc_do_resize() with rather strict
limits:
if (cols > VC_RESIZE_MAXCOL || lines > VC_RESIZE_MAXROW)
return -EINVAL;
Fixes:
0aec4867dca14 ("[PATCH] SVGATextMode fix")
Reference: CVE-2020-8647 and CVE-2020-8649
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
[danvet: augment commit message to point out overflow safety]
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200304022429.37738-1-zhangxiaoxu5@huawei.com
Ulf Hansson [Tue, 3 Mar 2020 15:07:47 +0000 (16:07 +0100)]
dt-bindings: arm: Fixup the DT bindings for hierarchical PSCI states
The hierarchical topology with power-domain should be described through
child nodes, rather than as currently described in the PSCI root node. Fix
this by adding a patternProperties with a corresponding reference to the
power-domain DT binding.
Additionally, update the example to conform to the new pattern, but also to
the adjusted domain-idle-state DT binding.
Fixes:
a3f048b5424e ("dt: psci: Update DT bindings to support hierarchical PSCI states")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[robh: Add missing allOf, tweak power-domain node name]
Signed-off-by: Rob Herring <robh@kernel.org>
Ulf Hansson [Tue, 3 Mar 2020 15:07:46 +0000 (16:07 +0100)]
dt-bindings: power: Extend nodename pattern for power-domain providers
The existing binding requires the nodename to have a '@', which is a bit
limiting for the wider use case. Therefore, let's extend the pattern to
allow either '@' or '-'.
Fixes:
a3f048b5424e ("dt: psci: Update DT bindings to support hierarchical PSCI states")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[robh: drop example change]
Signed-off-by: Rob Herring <robh@kernel.org>
yangerkun [Wed, 4 Mar 2020 07:25:56 +0000 (15:25 +0800)]
locks: fix a potential use-after-free problem when wakeup a waiter
'
16306a61d3b7 ("fs/locks: always delete_block after waiting.")' add the
logic to check waiter->fl_blocker without blocked_lock_lock. And it will
trigger a UAF when we try to wakeup some waiter:
Thread 1 has create a write flock a on file, and now thread 2 try to
unlock and delete flock a, thread 3 try to add flock b on the same file.
Thread2 Thread3
flock syscall(create flock b)
...flock_lock_inode_wait
flock_lock_inode(will insert
our fl_blocked_member list
to flock a's fl_blocked_requests)
sleep
flock syscall(unlock)
...flock_lock_inode_wait
locks_delete_lock_ctx
...__locks_wake_up_blocks
__locks_delete_blocks(
b->fl_blocker = NULL)
...
break by a signal
locks_delete_block
b->fl_blocker == NULL &&
list_empty(&b->fl_blocked_requests)
success, return directly
locks_free_lock b
wake_up(&b->fl_waiter)
trigger UAF
Fix it by remove this logic, and this patch may also fix CVE-2019-19769.
Cc: stable@vger.kernel.org
Fixes:
16306a61d3b7 ("fs/locks: always delete_block after waiting.")
Signed-off-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Linus Torvalds [Fri, 6 Mar 2020 13:18:36 +0000 (07:18 -0600)]
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"7 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
arch/Kconfig: update HAVE_RELIABLE_STACKTRACE description
mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled
mm/z3fold.c: do not include rwlock.h directly
fat: fix uninit-memory access for partial initialized inode
mm: avoid data corruption on CoW fault into PFN-mapped VMA
mm: fix possible PMD dirty bit lost in set_pmd_migration_entry()
mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa
Miroslav Benes [Fri, 6 Mar 2020 06:28:45 +0000 (22:28 -0800)]
arch/Kconfig: update HAVE_RELIABLE_STACKTRACE description
save_stack_trace_tsk_reliable() is not the only function providing the
reliable stack traces anymore. Architecture might define ARCH_STACKWALK
which provides a newer stack walking interface and has
arch_stack_walk_reliable() function. Update the description accordingly.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: http://lkml.kernel.org/r/20200120154042.9934-1-mbenes@suse.cz
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vlastimil Babka [Fri, 6 Mar 2020 06:28:42 +0000 (22:28 -0800)]
mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled
Commit
cd02cf1aceea ("mm/hotplug: fix an imbalance with DEBUG_PAGEALLOC")
fixed memory hotplug with debug_pagealloc enabled, where onlining a page
goes through page freeing, which removes the direct mapping. Some arches
don't like when the page is not mapped in the first place, so
generic_online_page() maps it first. This is somewhat wasteful, but
better than special casing page freeing fast paths.
The commit however missed that DEBUG_PAGEALLOC configured doesn't mean
it's actually enabled. One has to test debug_pagealloc_enabled() since
031bc5743f15 ("mm/debug-pagealloc: make debug-pagealloc boottime
configurable"), or alternatively debug_pagealloc_enabled_static() since
8e57f8acbbd1 ("mm, debug_pagealloc: don't rely on static keys too early"),
but this is not done.
As a result, a s390 kernel with DEBUG_PAGEALLOC configured but not enabled
will crash:
Unable to handle kernel pointer dereference in virtual kernel address space
Failing address:
0000000000000000 TEID:
0000000000000483
Fault in home space mode while using kernel ASCE.
AS:
0000001ece13400b R2:
000003fff7fd000b R3:
000003fff7fcc007 S:
000003fff7fd7000 P:
000000000000013d
Oops: 0004 ilc:2 [#1] SMP
CPU: 1 PID: 26015 Comm: chmem Kdump: loaded Tainted: GX 5.3.18-5-default #1 SLE15-SP2 (unreleased)
Krnl PSW :
0704e00180000000 0000001ecd281b9e (__kernel_map_pages+0x166/0x188)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3
Krnl GPRS:
0000000000000000 0000000000000800 0000400b00000000 0000000000000100
0000000000000001 0000000000000000 0000000000000002 0000000000000100
0000001ece139230 0000001ecdd98d40 0000400b00000100 0000000000000000
000003ffa17e4000 001fffe0114f7d08 0000001ecd4d93ea 001fffe0114f7b20
Krnl Code:
0000001ecd281b8e:
ec17ffff00d8 ahik %r1,%r7,-1
0000001ecd281b94:
ec111dbc0355 risbg %r1,%r1,29,188,3
>
0000001ecd281b9e:
94fb5006 ni 6(%r5),251
0000001ecd281ba2:
41505008 la %r5,8(%r5)
0000001ecd281ba6:
ec51fffc6064 cgrj %r5,%r1,6,
1ecd281b9e
0000001ecd281bac: 1a07 ar %r0,%r7
0000001ecd281bae:
ec03ff584076 crj %r0,%r3,4,
1ecd281a5e
Call Trace:
[<
0000001ecd281b9e>] __kernel_map_pages+0x166/0x188
[<
0000001ecd4d9516>] online_pages_range+0xf6/0x128
[<
0000001ecd2a8186>] walk_system_ram_range+0x7e/0xd8
[<
0000001ecda28aae>] online_pages+0x2fe/0x3f0
[<
0000001ecd7d02a6>] memory_subsys_online+0x8e/0xc0
[<
0000001ecd7add42>] device_online+0x5a/0xc8
[<
0000001ecd7d0430>] state_store+0x88/0x118
[<
0000001ecd5b9f62>] kernfs_fop_write+0xc2/0x200
[<
0000001ecd5064b6>] vfs_write+0x176/0x1e0
[<
0000001ecd50676a>] ksys_write+0xa2/0x100
[<
0000001ecda315d4>] system_call+0xd8/0x2c8
Fix this by checking debug_pagealloc_enabled_static() before calling
kernel_map_pages(). Backports for kernel before 5.5 should use
debug_pagealloc_enabled() instead. Also add comments.
Fixes:
cd02cf1aceea ("mm/hotplug: fix an imbalance with DEBUG_PAGEALLOC")
Reported-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: <stable@vger.kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Qian Cai <cai@lca.pw>
Link: http://lkml.kernel.org/r/20200224094651.18257-1-vbabka@suse.cz
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sebastian Andrzej Siewior [Fri, 6 Mar 2020 06:28:39 +0000 (22:28 -0800)]
mm/z3fold.c: do not include rwlock.h directly
rwlock.h should not be included directly. Instead linux/splinlock.h
should be included. One thing it does is to break the RT build.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20200224133631.1510569-1-bigeasy@linutronix.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
OGAWA Hirofumi [Fri, 6 Mar 2020 06:28:36 +0000 (22:28 -0800)]
fat: fix uninit-memory access for partial initialized inode
When get an error in the middle of reading an inode, some fields in the
inode might be still not initialized. And then the evict_inode path may
access those fields via iput().
To fix, this makes sure that inode fields are initialized.
Reported-by: syzbot+9d82b8de2992579da5d0@syzkaller.appspotmail.com
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/871rqnreqx.fsf@mail.parknet.co.jp
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kirill A. Shutemov [Fri, 6 Mar 2020 06:28:32 +0000 (22:28 -0800)]
mm: avoid data corruption on CoW fault into PFN-mapped VMA
Jeff Moyer has reported that one of xfstests triggers a warning when run
on DAX-enabled filesystem:
WARNING: CPU: 76 PID: 51024 at mm/memory.c:2317 wp_page_copy+0xc40/0xd50
...
wp_page_copy+0x98c/0xd50 (unreliable)
do_wp_page+0xd8/0xad0
__handle_mm_fault+0x748/0x1b90
handle_mm_fault+0x120/0x1f0
__do_page_fault+0x240/0xd70
do_page_fault+0x38/0xd0
handle_page_fault+0x10/0x30
The warning happens on failed __copy_from_user_inatomic() which tries to
copy data into a CoW page.
This happens because of race between MADV_DONTNEED and CoW page fault:
CPU0 CPU1
handle_mm_fault()
do_wp_page()
wp_page_copy()
do_wp_page()
madvise(MADV_DONTNEED)
zap_page_range()
zap_pte_range()
ptep_get_and_clear_full()
<TLB flush>
__copy_from_user_inatomic()
sees empty PTE and fails
WARN_ON_ONCE(1)
clear_page()
The solution is to re-try __copy_from_user_inatomic() under PTL after
checking that PTE is matches the orig_pte.
The second copy attempt can still fail, like due to non-readable PTE, but
there's nothing reasonable we can do about, except clearing the CoW page.
Reported-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Jeff Moyer <jmoyer@redhat.com>
Cc: <stable@vger.kernel.org>
Cc: Justin He <Justin.He@arm.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Link: http://lkml.kernel.org/r/20200218154151.13349-1-kirill.shutemov@linux.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Huang Ying [Fri, 6 Mar 2020 06:28:29 +0000 (22:28 -0800)]
mm: fix possible PMD dirty bit lost in set_pmd_migration_entry()
In set_pmd_migration_entry(), pmdp_invalidate() is used to change PMD
atomically. But the PMD is read before that with an ordinary memory
reading. If the THP (transparent huge page) is written between the PMD
reading and pmdp_invalidate(), the PMD dirty bit may be lost, and cause
data corruption. The race window is quite small, but still possible in
theory, so need to be fixed.
The race is fixed via using the return value of pmdp_invalidate() to get
the original content of PMD, which is a read/modify/write atomic
operation. So no THP writing can occur in between.
The race has been introduced when the THP migration support is added in
the commit
616b8371539a ("mm: thp: enable thp migration in generic path").
But this fix depends on the commit
d52605d7cb30 ("mm: do not lose dirty
and accessed bits in pmdp_invalidate()"). So it's easy to be backported
after v4.16. But the race window is really small, so it may be fine not
to backport the fix at all.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: <stable@vger.kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Link: http://lkml.kernel.org/r/20200220075220.2327056-1-ying.huang@intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mel Gorman [Fri, 6 Mar 2020 06:28:26 +0000 (22:28 -0800)]
mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa
: A user reported a bug against a distribution kernel while running a
: proprietary workload described as "memory intensive that is not swapping"
: that is expected to apply to mainline kernels. The workload is
: read/write/modifying ranges of memory and checking the contents. They
: reported that within a few hours that a bad PMD would be reported followed
: by a memory corruption where expected data was all zeros. A partial
: report of the bad PMD looked like
:
: [ 5195.338482] ../mm/pgtable-generic.c:33: bad pmd
ffff8888157ba008(
000002e0396009e2)
: [ 5195.341184] ------------[ cut here ]------------
: [ 5195.356880] kernel BUG at ../mm/pgtable-generic.c:35!
: ....
: [ 5195.410033] Call Trace:
: [ 5195.410471] [<
ffffffff811bc75d>] change_protection_range+0x7dd/0x930
: [ 5195.410716] [<
ffffffff811d4be8>] change_prot_numa+0x18/0x30
: [ 5195.410918] [<
ffffffff810adefe>] task_numa_work+0x1fe/0x310
: [ 5195.411200] [<
ffffffff81098322>] task_work_run+0x72/0x90
: [ 5195.411246] [<
ffffffff81077139>] exit_to_usermode_loop+0x91/0xc2
: [ 5195.411494] [<
ffffffff81003a51>] prepare_exit_to_usermode+0x31/0x40
: [ 5195.411739] [<
ffffffff815e56af>] retint_user+0x8/0x10
:
: Decoding revealed that the PMD was a valid prot_numa PMD and the bad PMD
: was a false detection. The bug does not trigger if automatic NUMA
: balancing or transparent huge pages is disabled.
:
: The bug is due a race in change_pmd_range between a pmd_trans_huge and
: pmd_nond_or_clear_bad check without any locks held. During the
: pmd_trans_huge check, a parallel protection update under lock can have
: cleared the PMD and filled it with a prot_numa entry between the transhuge
: check and the pmd_none_or_clear_bad check.
:
: While this could be fixed with heavy locking, it's only necessary to make
: a copy of the PMD on the stack during change_pmd_range and avoid races. A
: new helper is created for this as the check if quite subtle and the
: existing similar helpful is not suitable. This passed 154 hours of
: testing (usually triggers between 20 minutes and 24 hours) without
: detecting bad PMDs or corruption. A basic test of an autonuma-intensive
: workload showed no significant change in behaviour.
Although Mel withdrew the patch on the face of LKML comment
https://lkml.org/lkml/2017/4/10/922 the race window aforementioned is
still open, and we have reports of Linpack test reporting bad residuals
after the bad PMD warning is observed. In addition to that, bad
rss-counter and non-zero pgtables assertions are triggered on mm teardown
for the task hitting the bad PMD.
host kernel: mm/pgtable-generic.c:40: bad pmd
00000000b3152f68(
8000000d2d2008e7)
....
host kernel: BUG: Bad rss-counter state mm:
00000000b583043d idx:1 val:512
host kernel: BUG: non-zero pgtables_bytes on freeing mm: 4096
The issue is observed on a v4.18-based distribution kernel, but the race
window is expected to be applicable to mainline kernels, as well.
[akpm@linux-foundation.org: fix comment typo, per Rafael]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Cc: <stable@vger.kernel.org>
Cc: Zi Yan <zi.yan@cs.rutgers.edu>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@suse.com>
Link: http://lkml.kernel.org/r/20200216191800.22423-1-aquini@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 6 Mar 2020 12:50:26 +0000 (06:50 -0600)]
Merge tag 'devprop-5.6-rc5' of git://git./linux/kernel/git/rafael/linux-pm
Pull device properties framework fix from Rafael Wysocki:
"Revert a problematic commit from the 5.3 development cycle (Brendan
Higgins)"
* tag 'devprop-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "software node: Simplify software_node_release() function"
Linus Torvalds [Fri, 6 Mar 2020 12:49:09 +0000 (06:49 -0600)]
Merge tag 'acpi-5.6-rc5' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI documentation fix from Rafael Wysocki:
"Fix Sphinx format warinings in an ACPI fan document added recently
(Randy Dunlap)"
* tag 'acpi-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Documentation/admin-guide/acpi: fix fan_performance_states.rst warnings
Linus Torvalds [Fri, 6 Mar 2020 12:45:20 +0000 (06:45 -0600)]
Merge tag 'drm-fixes-2020-03-06' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Weekly fixes round, looks like a few people woke up, got a bunch of
fixes across the drivers. Bit bigger than I'd like but they all seem
fine and hopefully it quiets down now.
sun4i, kirin, mediatek and exynos on the ARM side. virtio-gpu and core
have some mmap fixes, and there is a dma-buf leak. one ttm fence leak
is also fixed.
Otherwise it's mostly amdgpu and i915.
One of the i915 fixes is for a very long latency I was seeing (using
latencytop) running gnome-shell locally when using firefox and eating
nearly all my RAM, it really helps with desktop responsiveness esp
when firefox is chewing a lot.
dma-buf:
- fix memory leak
core:
- shmem object mmap fix.
ttm:
- Fix fence leak in ttm_buffer_object_transfer().
amdgpu:
- Gfx reset fix for gfx9, 10
- Fix for gfx10
- DP MST fix
- DCC fix
- Renoir power fixes
- Navi power fix
i915:
- Break up long lists of object reclaim with cond_resched()
- PSR probe fix
- TGL workarounds
- Selftest return value fix
- Drop timeline mutex while waiting for retirement
- Wait for OA configuration completion before writes to OA buffer
virtio:
- Fix resource id creation race in virtio.
- mmap fixes
sun4i:
- Fixes for sun4i VI layer format support.
kirin:
- kirin: Revert "Fix for hikey620 display offset problem"
exynos:
- fix a kernel oops problem in case that driver is loaded as module.
- fix a regulator warning issue when I2C DDC adapter cannot be gathered.
- print out an error message only in error case excepting -EPROBE_DEFER.
mediatek:
- overlay, cursor and gce fixes"
`
* tag 'drm-fixes-2020-03-06' of git://anongit.freedesktop.org/drm/drm: (38 commits)
drm/amdgpu/display: navi1x copy dcn watermark clock settings to smu resume from s3 (v2)
drm/amd/powerplay: map mclk to fclk for COMBINATIONAL_BYPASS case
drm/amd/powerplay: fix pre-check condition for setting clock range
drm/amd/display: fix dcc swath size calculations on dcn1
drm/amd/display: Clear link settings on MST disable connector
drm/amdgpu: disable 3D pipe 1 on Navi1x
drm/amdgpu: clean wptr on wb when gpu recovery
drm: kirin: Revert "Fix for hikey620 display offset problem"
drm/i915/gt: Drop the timeline->mutex as we wait for retirement
drm/i915/perf: Reintroduce wait on OA configuration completion
drm/sun4i: Fix DE2 VI layer format support
drm/sun4i: Add separate DE3 VI layer formats
drm/sun4i: de2/de3: Remove unsupported VI layer formats
drm/i915/selftests: Fix return in assert_mmap_offset()
drm/i915: Protect i915_request_await_start from early waits
drm/i915/tgl: Add Wa_1608008084
drm/i915/tgl: Add Wa_22010178259:tgl
drm/i915: Program MBUS with rmw during initialization
drm/i915/psr: Force PSR probe only after full initialization
drm/i915/gem: Break up long lists of object reclaim
...
Thomas Bogendoerfer [Fri, 6 Mar 2020 10:58:37 +0000 (11:58 +0100)]
ALSA: sgio2audio: Remove usage of dropped hw_params/hw_free functions
Commit
ee88f4ebe575 ("ALSA: mips: Use managed buffer allocation") removed
superfluous hw_params/hw_free callbacks, but forgot to remove them where
they were used.
Fixes:
ee88f4ebe575 ("ALSA: mips: Use managed buffer allocation")
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Link: https://lore.kernel.org/r/20200306105837.31523-1-tsbogend@alpha.franken.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Rafael J. Wysocki [Fri, 6 Mar 2020 09:57:46 +0000 (10:57 +0100)]
Merge branch 'acpi-doc'
* acpi-doc:
Documentation/admin-guide/acpi: fix fan_performance_states.rst warnings
Dave Airlie [Fri, 6 Mar 2020 01:06:33 +0000 (11:06 +1000)]
Merge tag 'amd-drm-fixes-5.6-2020-03-05' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.6-2020-03-05:
amdgpu:
- Gfx reset fix for gfx9, 10
- Fix for gfx10
- DP MST fix
- DCC fix
- Renoir power fixes
- Navi power fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305185957.4268-1-alexander.deucher@amd.com
Dave Airlie [Thu, 5 Mar 2020 23:18:18 +0000 (09:18 +1000)]
Merge tag 'drm-intel-fixes-2020-03-05' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.6-rc5:
- Break up long lists of object reclaim with cond_resched()
- PSR probe fix
- TGL workarounds
- Selftest return value fix
- Drop timeline mutex while waiting for retirement
- Wait for OA configuration completion before writes to OA buffer
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87eeu7nl6z.fsf@intel.com
Dave Airlie [Thu, 5 Mar 2020 19:40:12 +0000 (05:40 +1000)]
Merge tag 'drm-misc-fixes-2020-03-05' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Fixes for v5.6.rc5:
- dma-buf fix memory leak
- Fix resource id creation race in virtio.
- Various mmap fixes.
- Fix fence leak in ttm_buffer_object_transfer().
- Fixes for sun4i VI layer format support.
- kirin: Revert "Fix for hikey620 display offset problem"
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/56de63c7-0cdf-5805-e268-44944af7fef2@linux.intel.com
Tycho Andersen [Sat, 8 Feb 2020 15:18:17 +0000 (08:18 -0700)]
riscv: fix seccomp reject syscall code path
If secure_computing() rejected a system call, we were previously setting
the system call number to -1, to indicate to later code that the syscall
failed. However, if something (e.g. a user notification) was sleeping, and
received a signal, we may set a0 to -ERESTARTSYS and re-try the system call
again.
In this case, seccomp "denies" the syscall (because of the signal), and we
would set a7 to -1, thus losing the value of the system call we want to
restart.
Instead, let's return -1 from do_syscall_trace_enter() to indicate that the
syscall was rejected, so we don't clobber the value in case of -ERESTARTSYS
or whatever.
This commit fixes the user_notification_signal seccomp selftest on riscv to
no longer hang. That test expects the system call to be re-issued after the
signal, and it wasn't due to the above bug. Now that it is, everything
works normally.
Note that in the ptrace (tracer) case, the tracer can set the register
values to whatever they want, so we still need to keep the code that
handles out-of-bounds syscalls. However, we can drop the comment.
We can also drop syscall_set_nr(), since it is no longer used anywhere, and
the code that re-loads the value in a7 because of it.
Reported in: https://lore.kernel.org/bpf/CAEn-LTp=ss0Dfv6J00=rCAy+N78U2AmhqJNjfqjr2FDpPYjxEQ@mail.gmail.com/
Reported-by: David Abdurachmanov <david.abdurachmanov@gmail.com>
Signed-off-by: Tycho Andersen <tycho@tycho.ws>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Yash Shah [Wed, 19 Feb 2020 03:49:07 +0000 (09:19 +0530)]
riscv: dts: Add GPIO reboot method to HiFive Unleashed DTS file
Add the ability to reboot the HiFive Unleashed board via GPIO.
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Anup Patel [Tue, 3 Dec 2019 03:49:39 +0000 (03:49 +0000)]
RISC-V: Select Goldfish RTC driver for QEMU virt machine
We select Goldfish RTC driver using QEMU virt machine kconfig option
to access RTC device on QEMU virt machine.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Anup Patel [Tue, 3 Dec 2019 03:49:37 +0000 (03:49 +0000)]
RISC-V: Select SYSCON Reboot and Poweroff for QEMU virt machine
The SYSCON Reboot and Poweroff drivers can be used on QEMU virt machine
to reboot or poweroff the system hence we select these drivers using
QEMU virt machine kconfig option.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Anup Patel [Tue, 3 Dec 2019 03:49:34 +0000 (03:49 +0000)]
RISC-V: Enable QEMU virt machine support in defconfigs
We have kconfig option for QEMU virt machine so let's enable it
in RV32 and RV64 defconfigs. Also, we remove various VIRTIO configs
from RV32 and RV64 defconfigs because these are now selected by
QEMU virt machine kconfig option.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Anup Patel [Tue, 3 Dec 2019 03:49:31 +0000 (03:49 +0000)]
RISC-V: Add kconfig option for QEMU virt machine
We add kconfig option for QEMU virt machine and select all
required VIRTIO drivers using this kconfig option.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Linus Torvalds [Thu, 5 Mar 2020 18:23:22 +0000 (12:23 -0600)]
Merge tag 'hyperv-fixes-signed' of git://git./linux/kernel/git/hyperv/linux
Pull Hyper-V update from Wei Liu:
- Update MAINTAINERS file for Hyper-V
- One cleanup patch for Hyper-V HID driver
* tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
HID: hyperv: NULL check before some freeing functions is not needed.
Hyper-V: add myself as a maintainer
Hyper-V: Drop Sasha Levin from the Hyper-V maintainers
Linus Torvalds [Thu, 5 Mar 2020 18:19:34 +0000 (12:19 -0600)]
Merge tag 'dmaengine-fix-5.6-rc5' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"A bunch of driver fixes:
- Doc updates to clean warnings for dmaengine
- Fixes for newly added Intel idxd driver
- More fixes for newly added TI k3-udma driver
- Fixes for IMX and Tegra drivers"
* tag 'dmaengine-fix-5.6-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: imx-sdma: Fix the event id check to include RX event for UART6
dmaengine: tegra-apb: Prevent race conditions of tasklet vs free list
dmaengine: tegra-apb: Fix use-after-free
dmaengine: imx-sdma: fix context cache
dmaengine: idxd: wq size configuration needs to check global max size
dmaengine: idxd: sysfs input of wq incorrect wq type should return error
dmaengine: coh901318: Fix a double lock bug in dma_tc_handle()
dmaengine: idxd: correct reserved token calculation
dmaengine: ti: k3-udma: Fix terminated transfer handling
dmaengine: ti: k3-udma: Use the channel direction in pause/resume functions
dmaengine: ti: k3-udma: Use the TR counter helper for slave_sg and cyclic
dmaengine: ti: k3-udma: Move the TR counter calculation to helper function
dmaengine: ti: k3-udma: Workaround for RX teardown with stale data in peer
dmaengine: ti: k3-udma: Use ktime/usleep_range based TX completion check
dmaengine: idxd: Fix error handling in idxd_wq_cdev_dev_setup()
dmaengine: doc: fix warnings/issues of client.rst
dmaengine: idxd: fix runaway module ref count on device driver bind
Jian-Hong Pan [Tue, 25 Feb 2020 07:29:21 +0000 (15:29 +0800)]
ALSA: hda/realtek - Enable the headset of ASUS B9450FA with ALC294
A headset on the laptop like ASUS B9450FA does not work, until quirk
ALC294_FIXUP_ASUS_HPE is applied.
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200225072920.109199-1-jian-hong@endlessm.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Hersen Wu [Thu, 13 Feb 2020 15:50:13 +0000 (10:50 -0500)]
drm/amdgpu/display: navi1x copy dcn watermark clock settings to smu resume from s3 (v2)
This interface is for dGPU Navi1x. Linux dc-pplib interface depends
on window driver dc implementation.
For Navi1x, clock settings of dcn watermarks are fixed. the settings
should be passed to smu during boot up and resume from s3.
boot up: dc calculate dcn watermark clock settings within dc_create,
dcn20_resource_construct, then call pplib functions below to pass
the settings to smu:
smu_set_watermarks_for_clock_ranges
smu_set_watermarks_table
navi10_set_watermarks_table
smu_write_watermarks_table
For Renoir, clock settings of dcn watermark are also fixed values.
dc has implemented different flow for window driver:
dc_hardware_init / dc_set_power_state
dcn10_init_hw
notify_wm_ranges
set_wm_ranges
For Linux
smu_set_watermarks_for_clock_ranges
renoir_set_watermarks_table
smu_write_watermarks_table
dc_hardware_init -> amdgpu_dm_init
dc_set_power_state --> dm_resume
therefore, linux dc-pplib interface of navi10/12/14 is different
from that of Renoir.
v2: add missing unlock in error case
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Prike Liang [Wed, 4 Mar 2020 02:36:21 +0000 (10:36 +0800)]
drm/amd/powerplay: map mclk to fclk for COMBINATIONAL_BYPASS case
When hit COMBINATIONAL_BYPASS the mclk will be bypass and can export
fclk frequency to user usage.
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Prike Liang [Mon, 2 Mar 2020 01:36:15 +0000 (09:36 +0800)]
drm/amd/powerplay: fix pre-check condition for setting clock range
This fix will handle some MP1 FW issue like as mclk dpm table in renoir has a reverse
dpm clock layout and a zero frequency dpm level as following case.
cat pp_dpm_mclk
0: 1200Mhz
1: 1200Mhz
2: 800Mhz
3: 0Mhz
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Josip Pavic [Fri, 21 Feb 2020 17:26:19 +0000 (12:26 -0500)]
drm/amd/display: fix dcc swath size calculations on dcn1
[Why]
Swath sizes are being calculated incorrectly. The horizontal swath size
should be the product of block height, viewport width, and bytes per
element, but the calculation uses viewport height instead of width. The
vertical swath size is similarly incorrectly calculated. The effect of
this is that we report the wrong DCC caps.
[How]
Use viewport width in the horizontal swath size calculation and viewport
height in the vertical swath size calculation.
Signed-off-by: Josip Pavic <Josip.Pavic@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Bhawanpreet Lakha [Thu, 20 Feb 2020 16:16:14 +0000 (11:16 -0500)]
drm/amd/display: Clear link settings on MST disable connector
[Why]
If we have a single MST display and we disconnect it, we dont disable that
link. This causes the old link settings to still exist
Now on a replug for MST we think its a link loss and will try to reallocate
mst payload which will fail, throwing warning below.
[ 129.374192] [drm] Failed to updateMST allocation table forpipe idx:0
[ 129.374206] ------------[ cut here ]------------
[ 129.374284] WARNING: CPU: 14 PID: 1710 at
drivers/gpu/drm/amd/amdgpu/../dal-dev/dc/core/dc_link.c:3153
dc_link_allocate_mst_payload+0x1f7/0x220 [amdgpu]
[ 129.374285] Modules linked in: amdgpu(OE) amd_iommu_v2 gpu_sched ttm
drm_kms_helper drm fb_sys_fops syscopyarea sysfillrect sysimgblt
binfmt_misc nls_iso8859_1 edac_mce_amd snd_hda_codec_realtek
snd_hda_codec_generic ledtrig_audio kvm snd_hda_codec_hdmi snd_hda_intel
snd_intel_nhlt snd_hda_codec irqbypass snd_hda_core snd_hwdep snd_pcm
snd_seq_midi snd_seq_midi_event snd_rawmidi crct10dif_pclmul snd_seq
crc32_pclmul ghash_clmulni_intel snd_seq_device snd_timer snd aesni_intel
eeepc_wmi crypto_simd asus_wmi joydev cryptd sparse_keymap input_leds
soundcore video glue_helper wmi_bmof mxm_wmi k10temp ccp mac_hid
sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4
hid_generic usbhid hid igb i2c_algo_bit ahci dca i2c_piix4 libahci
gpio_amdpt wmi gpio_generic
[ 129.374318] CPU: 14 PID: 1710 Comm: kworker/14:2 Tainted: G W OE 5.4.0-rc7bhawan+ #480
[ 129.374318] Hardware name: System manufacturer System Product Name/PRIME X370-PRO, BIOS 0515 03/30/2017
[ 129.374397] Workqueue: events dm_irq_work_func [amdgpu]
[ 129.374468] RIP: 0010:dc_link_allocate_mst_payload+0x1f7/0x220 [amdgpu]
[ 129.374470] Code: 52 20 e8 1c 63 ad f4 48 8b 5d d0 65 48 33 1c 25 28 00
00 00 b8 01 00 00 00 75 16 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3
<0f> 0b e9 fa fe ff ff e8 ed 5b d6 f3 41 0f b6 b6 c4 02 00 00 48 c7
[ 129.374471] RSP: 0018:
ffff9f9141e7fcc0 EFLAGS:
00010246
[ 129.374472] RAX:
0000000000000000 RBX:
ffff91ef0762f800 RCX:
0000000000000000
[ 129.374473] RDX:
0000000000000005 RSI:
ffffffffc0c4a988 RDI:
0000000000000004
[ 129.374474] RBP:
ffff9f9141e7fd10 R08:
0000000000000005 R09:
0000000000000000
[ 129.374475] R10:
0000000000000002 R11:
0000000000000001 R12:
ffff91eebd510c00
[ 129.374475] R13:
ffff91eebd510e58 R14:
ffff91ef052c01b8 R15:
0000000000000006
[ 129.374476] FS:
0000000000000000(0000) GS:
ffff91ef0ef80000(0000) knlGS:
0000000000000000
[ 129.374477] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[ 129.374478] CR2:
000055623ea01d50 CR3:
0000000408a8c000 CR4:
00000000003406e0
[ 129.374479] Call Trace:
[ 129.374550] dc_link_reallocate_mst_payload+0x12e/0x150 [amdgpu]
[ 129.374617] dc_link_handle_hpd_rx_irq+0x6d4/0x6e0 [amdgpu]
[ 129.374693] handle_hpd_rx_irq+0x77/0x310 [amdgpu]
[ 129.374768] dm_irq_work_func+0x53/0x70 [amdgpu]
[ 129.374774] process_one_work+0x1fd/0x3f0
[ 129.374776] worker_thread+0x255/0x410
[ 129.374778] kthread+0x121/0x140
[ 129.374780] ? process_one_work+0x3f0/0x3f0
[ 129.374781] ? kthread_park+0x90/0x90
[ 129.374785] ret_from_fork+0x22/0x40
[How]
when we disable MST we should clear the cur link settings (lane_count=0 is
good enough). This will cause us to not reallocate payloads earlier than
expected and not throw the warning
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tianci.Yin [Fri, 28 Feb 2020 09:10:21 +0000 (17:10 +0800)]
drm/amdgpu: disable 3D pipe 1 on Navi1x
[why]
CP firmware decide to skip setting the state for 3D pipe 1 for Navi1x as there
is no use case.
[how]
Disable 3D pipe 1 on Navi1x.
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Christian Lachner [Sun, 23 Feb 2020 09:24:16 +0000 (10:24 +0100)]
ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master
The Gigabyte X570 Aorus Master motherboard with ALC1220 codec
requires a similar workaround for Clevo laptops to enforce the
DAC/mixer connection path. Set up a quirk entry for that.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205275
Signed-off-by: Christian Lachner <gladiac@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200223092416.15016-2-gladiac@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Kailang Yang [Mon, 10 Feb 2020 08:30:26 +0000 (16:30 +0800)]
ALSA: hda/realtek - Add Headset Button supported for ThinkPad X1
ThinkPad want to support Headset Button control.
This patch will enable it.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/7f0b7128f40f41f6b5582ff610adc33d@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Kailang Yang [Thu, 20 Feb 2020 07:21:54 +0000 (15:21 +0800)]
ALSA: hda/realtek - Add Headset Mic supported
Dell desktop platform supported headset Mic.
Add pin verb to enable headset Mic.
This platform only support fixed type headset for Iphone type.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/b9da28d772ef43088791b0f3675929e7@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Lucas Tanure [Sat, 29 Feb 2020 17:30:07 +0000 (17:30 +0000)]
HID: hyperv: NULL check before some freeing functions is not needed.
Fix below warnings reported by coccicheck:
drivers/hid/hid-hyperv.c:197:2-7: WARNING: NULL check before some freeing functions is not needed.
drivers/hid/hid-hyperv.c:211:2-7: WARNING: NULL check before some freeing functions is not needed.
Signed-off-by: Lucas Tanure <tanure@linux.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Wei Liu <wei.liu@kernel.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Wei Liu [Wed, 4 Mar 2020 14:47:09 +0000 (14:47 +0000)]
Hyper-V: add myself as a maintainer
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Sasha Levin [Wed, 5 Feb 2020 21:32:42 +0000 (16:32 -0500)]
Hyper-V: Drop Sasha Levin from the Hyper-V maintainers
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Lukas Bulwahn [Wed, 4 Mar 2020 21:26:00 +0000 (22:26 +0100)]
MAINTAINERS: update ALLWINNER CPUFREQ DRIVER entry
Commit
b30d8cf5e171 ("dt-bindings: opp: Convert Allwinner H6 OPP to a
schema") converted in Documentation/devicetree/bindings/opp/ the file
sun50i-nvmem-cpufreq.txt to allwinner,sun50i-h6-operating-points.yaml.
Since then, ./scripts/get_maintainer.pl --self-test complains:
warning: no file matches \
F: Documentation/devicetree/bindings/opp/sun50i-nvmem-cpufreq.txt
Adjust the file pattern in the ALLWINNER CPUFREQ DRIVER entry.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Axel Lin [Wed, 4 Mar 2020 14:02:41 +0000 (22:02 +0800)]
ASoC: wm8741: Fix typo in Kconfig prompt
Fix trivial copy-n-paste mistake.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20200304140241.340-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Yintian Tao [Fri, 28 Feb 2020 06:24:42 +0000 (14:24 +0800)]
drm/amdgpu: clean wptr on wb when gpu recovery
The TDR will be randomly failed due to compute ring
test failure. If the compute ring wptr & 0x7ff(ring_buf_mask)
is 0x100 then after map mqd the compute ring rptr will be
synced with 0x100. And the ring test packet size is also 0x100.
Then after invocation of amdgpu_ring_commit, the cp will not
really handle the packet on the ring buffer because rptr is equal to wptr.
Signed-off-by: Yintian Tao <yttao@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Dave Airlie [Thu, 5 Mar 2020 02:59:39 +0000 (12:59 +1000)]
Merge tag 'mediatek-drm-fixes-5.6' of https://github.com/ckhu-mediatek/linux.git-tags into drm-fixes
Mediatek DRM Fixes for Linux 5.6
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1583373069.364.4.camel@mtksdaap41
Dave Airlie [Thu, 5 Mar 2020 02:34:50 +0000 (12:34 +1000)]
Merge tag 'exynos-drm-fixes-for-v5.6-rc5' of git://git./linux/kernel/git/daeinki/drm-exynos into drm-fixes
Three fixups
- fix a kernel oops problem in case that driver is loaded as module.
- fix a regulator warning issue when I2C DDC adapter cannot be gathered.
- print out an error message only in error case excepting -EPROBE_DEFER.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1583126752-30477-1-git-send-email-inki.dae@samsung.com
Alexandre Ghiti [Mon, 17 Feb 2020 05:28:47 +0000 (00:28 -0500)]
riscv: Fix range looking for kernel image memblock
When looking for the memblock where the kernel lives, we should check
that the memory range associated to the memblock entirely comprises the
kernel image and not only intersects with it.
Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Brendan Higgins [Fri, 28 Feb 2020 00:00:01 +0000 (16:00 -0800)]
Revert "software node: Simplify software_node_release() function"
This reverts commit
3df85a1ae51f6b256982fe9d17c2dc5bfb4cc402.
The reverted commit says "It's possible to release the node ID
immediately when fwnode_remove_software_node() is called, no need to
wait for software_node_release() with that." However, releasing the node
ID before waiting for software_node_release() to be called causes the
node ID to be released before the kobject and the underlying sysfs
entry; this means there is a period of time where a sysfs entry exists
that is associated with an unallocated node ID.
Once consequence of this is that there is a race condition where it is
possible to call fwnode_create_software_node() with no parent node
specified (NULL) and have it fail with -EEXIST because the node ID that
was assigned is still associated with a stale sysfs entry that hasn't
been cleaned up yet.
Although it is difficult to reproduce this race condition under normal
conditions, it can be deterministically reproduced with the following
minconfig on UML:
CONFIG_KUNIT_DRIVER_PE_TEST=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_TIMERS=y
CONFIG_DEBUG_KOBJECT_RELEASE=y
CONFIG_KUNIT=y
Running the tests with this configuration causes the following failure:
<snip>
kobject: 'node0' ((____ptrval____)): kobject_release, parent (____ptrval____) (delayed 400)
ok 1 - pe_test_uints
sysfs: cannot create duplicate filename '/kernel/software_nodes/node0'
CPU: 0 PID: 28 Comm: kunit_try_catch Not tainted 5.6.0-rc3-next-
20200227 #14
<snip>
kobject_add_internal failed for node0 with -EEXIST, don't try to register things with the same name in the same directory.
kobject: 'node0' ((____ptrval____)): kobject_release, parent (____ptrval____) (delayed 100)
# pe_test_uint_arrays: ASSERTION FAILED at drivers/base/test/property-entry-test.c:123
Expected node is not error, but is: -17
not ok 2 - pe_test_uint_arrays
<snip>
Reported-by: Heidi Fahim <heidifahim@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: 5.3+ <stable@vger.kernel.org> # 5.3+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rob Herring [Mon, 2 Mar 2020 17:36:20 +0000 (11:36 -0600)]
dt-bindings: bus: Drop empty compatible string in example
In preparation to add generic checks of compatible strings, drop
the compatible as '...' is not a valid compatible string.
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Linus Torvalds [Wed, 4 Mar 2020 19:02:45 +0000 (13:02 -0600)]
Merge tag 'for-5.6/dm-fixes' of git://git./linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix request-based DM's congestion_fn and actually wire it up to the
bdi.
- Extend dm-bio-record to track additional struct bio members needed by
DM integrity target.
- Fix DM core to properly advertise that a device is suspended during
unload (between the presuspend and postsuspend hooks). This change is
a prereq for related DM integrity and DM writecache fixes. It
elevates DM integrity's 'suspending' state tracking to DM core.
- Four stable fixes for DM integrity target.
- Fix crash in DM cache target due to incorrect work item cancelling.
- Fix DM thin metadata lockdep warning that was introduced during 5.6
merge window.
- Fix DM zoned target's chunk work refcounting that regressed during
recent conversion to refcount_t.
- Bump the minor version for DM core and all target versions that have
seen interface changes or important fixes during the 5.6 cycle.
* tag 'for-5.6/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: bump version of core and various targets
dm: fix congested_fn for request-based device
dm integrity: use dm_bio_record and dm_bio_restore
dm bio record: save/restore bi_end_io and bi_integrity
dm zoned: Fix reference counter initial value of chunk works
dm writecache: verify watermark during resume
dm: report suspended device during destroy
dm thin metadata: fix lockdep complaint
dm cache: fix a crash due to incorrect work item cancelling
dm integrity: fix invalid table returned due to argument count mismatch
dm integrity: fix a deadlock due to offloading to an incorrect workqueue
dm integrity: fix recalculation when moving from journal mode to bitmap mode
Damien Le Moal [Wed, 12 Feb 2020 10:34:24 +0000 (19:34 +0900)]
riscv: Force flat memory model with no-mmu
Compilation errors trigger if ARCH_SPARSEMEM_ENABLE is enabled for
a nommu kernel. Since the sparsemem model does not make sense anyway
for the nommu case, do not allow selecting this option to always use
the flatmem model.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Ulf Hansson [Tue, 3 Mar 2020 15:07:45 +0000 (16:07 +0100)]
dt-bindings: power: Convert domain-idle-states bindings to json-schema
While converting to the json-schema, let's also take the opportunity to
further specify/clarify some more details about the DT binding.
For example, let's define the label where to put the states nodes, set a
pattern for nodename of the state nodes and finally add an example.
Fixes:
a3f048b5424e ("dt: psci: Update DT bindings to support hierarchical PSCI states")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[robh: drop type refs from standard unit properties]
Signed-off-by: Rob Herring <robh@kernel.org>
Ulf Hansson [Tue, 3 Mar 2020 15:07:44 +0000 (16:07 +0100)]
dt-bindings: arm: Fix cpu compatibles in the hierarchical example for PSCI
Fixes:
a3f048b5424e ("dt: psci: Update DT bindings to support hierarchical PSCI states")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Ulf Hansson [Tue, 3 Mar 2020 15:07:43 +0000 (16:07 +0100)]
dt-bindings: arm: Correct links to idle states definitions
The arm,idle-state DT bindings recently got converted to the json-schema,
but some links are still pointing to the old, non-existing, txt file. Let's
update the links to fix this.
Fixes:
baac82fe06db ("dt-bindings: arm: Convert arm,idle-state binding to DT schema")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Aaro Koskinen [Wed, 4 Mar 2020 11:17:40 +0000 (13:17 +0200)]
spi: spi_register_controller(): free bus id on error paths
Some error paths leave the bus id allocated. As a result the IDR
allocation will fail after a deferred probe. Fix by freeing the bus id
always on error.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Message-Id: <
20200304111740.27915-1-aaro.koskinen@nokia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Fabrice Gasnier [Wed, 4 Mar 2020 08:55:32 +0000 (09:55 +0100)]
regulator: stm32-vrefbuf: fix a possible overshoot when re-enabling
There maybe an overshoot, when disabling, then re-enabling vrefbuf
too quickly. VREFBUF is used by ADC/DAC on some boards. When re-enabling
too quickly, an overshoot on the reference voltage make the conversions
inaccurate for a short period of time.
- Don't put the VREFBUF in HiZ when disabling, to force an active
discharge.
- Enforce a 1ms OFF/ON delay
Fixes:
0cdbf481e927 ("regulator: Add support for stm32-vrefbuf")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Message-Id: <
1583312132-20932-1-git-send-email-fabrice.gasnier@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
John Stultz [Tue, 3 Mar 2020 16:32:28 +0000 (16:32 +0000)]
drm: kirin: Revert "Fix for hikey620 display offset problem"
This reverts commit
ff57c6513820efe945b61863cf4a51b79f18b592.
With the commit
ff57c6513820 ("drm: kirin: Fix for hikey620
display offset problem") we added support for handling LDI
overflows by resetting the hardware.
However, its been observed that when we do hit the LDI overflow
condition, the irq seems to be screaming, and we do nothing but
stream:
[drm:ade_irq_handler [kirin_drm]] *ERROR* LDI underflow!
over and over to the screen
I've tried a few appraoches to avoid this, but none has yet
been successful and the cure here is worse then the original
disease, so revert this for now.
Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Rongrong Zou <zourongrong@gmail.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Chen Feng <puck.chen@hisilicon.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel <dri-devel@lists.freedesktop.org>
Fixes:
ff57c6513820 ("drm: kirin: Fix for hikey620 display offset problem")
Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Xinliang Liu <xinliang.liu@linaro.org>
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200303163228.52741-1-john.stultz@linaro.org
Olivier Moysan [Wed, 4 Mar 2020 10:24:06 +0000 (11:24 +0100)]
ASoC: stm32: sai: manage rebind issue
The commit
e894efef9ac7 ("ASoC: core: add support to card rebind")
allows to rebind the sound card after a rebind of one of its component.
With this commit, the sound card is actually rebound,
but may be no more functional. The following problems have been seen
with STM32 SAI driver.
1) DMA channel is not requested:
With the sound card rebind the simplified call sequence is:
stm32_sai_sub_probe
snd_soc_register_component
snd_soc_try_rebind_card
snd_soc_instantiate_card
devm_snd_dmaengine_pcm_register
The problem occurs because the pcm must be registered,
before snd_soc_instantiate_card() is called.
Modify SAI driver, to change the call sequence as follows:
stm32_sai_sub_probe
devm_snd_dmaengine_pcm_register
snd_soc_register_component
snd_soc_try_rebind_card
2) DMA channel is not released:
dma_release_channel() is not called when
devm_dmaengine_pcm_release() is executed.
This occurs because SND_DMAENGINE_PCM_DRV_NAME component,
has already been released through devm_component_release().
devm_dmaengine_pcm_release() should be called before
devm_component_release() to avoid this problem.
Call snd_dmaengine_pcm_unregister() and snd_soc_unregister_component()
explicitly from SAI driver, to have the right sequence.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Message-Id: <
20200304102406.8093-1-olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Chris Wilson [Tue, 3 Mar 2020 14:00:09 +0000 (14:00 +0000)]
drm/i915/gt: Drop the timeline->mutex as we wait for retirement
As we have pinned the timeline (using tl->active_count), we can safely
drop the tl->mutex as we wait for what we believe to be the final
request on that timeline. This is useful for ensuring that we do not
block the engine heartbeat by hogging the kernel_context's timeline on a
dead GPU.
References: https://gitlab.freedesktop.org/drm/intel/issues/1364
Fixes:
058179e72e09 ("drm/i915/gt: Replace hangcheck by heartbeats")
Fixes:
f33a8a51602c ("drm/i915: Merge wait_for_timelines with retire_request")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200303140009.1494819-1-chris@chris-wilson.co.uk
(cherry picked from commit
82126e596d8519baac416aee83cad938f1d23cf8)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Chris Wilson [Mon, 2 Mar 2020 08:57:57 +0000 (08:57 +0000)]
drm/i915/perf: Reintroduce wait on OA configuration completion
We still need to wait for the initial OA configuration to happen
before we enable OA report writes to the OA buffer.
Reported-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes:
15d0ace1f876 ("drm/i915/perf: execute OA configuration from command stream")
Closes: https://gitlab.freedesktop.org/drm/intel/issues/1356
Testcase: igt/perf/stream-open-close
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200302085812.4172450-7-chris@chris-wilson.co.uk
(cherry picked from commit
4b4e973d5eb89244b67d3223b60f752d0479f253)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Linus Torvalds [Tue, 3 Mar 2020 23:31:19 +0000 (17:31 -0600)]
Merge tag '5.6-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Five small cifs/smb3 fixes, two for stable (one for a reconnect
problem and the other fixes a use case when renaming an open file)"
* tag '5.6-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Use #define in cifs_dbg
cifs: fix rename() by ensuring source handle opened with DELETE bit
cifs: add missing mount option to /proc/mounts
cifs: fix potential mismatch of UNC paths
cifs: don't leak -EAGAIN for stat() during reconnect
Jonathan Neuschäfer [Thu, 27 Feb 2020 17:07:01 +0000 (18:07 +0100)]
dt-bindings: mfd: Fix typo in file name of twl-familly.txt
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Rob Herring <robh@kernel.org>
Jonathan Neuschäfer [Thu, 27 Feb 2020 16:05:21 +0000 (17:05 +0100)]
dt-bindings: mfd: tps65910: Improve grammar
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Rob Herring <robh@kernel.org>
Jonathan Neuschäfer [Thu, 27 Feb 2020 15:55:00 +0000 (16:55 +0100)]
dt-bindings: mfd: zii,rave-sp: Fix a typo ("onborad")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Rob Herring <robh@kernel.org>
Jernej Skrabec [Mon, 24 Feb 2020 17:38:57 +0000 (18:38 +0100)]
drm/sun4i: Fix DE2 VI layer format support
DE2 VI layer doesn't support blending which means alpha channel is
ignored. Replace all formats with alpha with "don't care" (X) channel.
Fixes:
7480ba4d7571 ("drm/sun4i: Add support for DE2 VI planes")
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-4-jernej.skrabec@siol.net
Jernej Skrabec [Mon, 24 Feb 2020 17:38:56 +0000 (18:38 +0100)]
drm/sun4i: Add separate DE3 VI layer formats
DE3 VI layers support alpha blending, but DE2 VI layers do not.
Additionally, DE3 VI layers support 10-bit RGB and YUV formats.
Make a separate list for DE3.
Fixes:
c50519e6db4d ("drm/sun4i: Add basic support for DE3")
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-3-jernej.skrabec@siol.net
Jernej Skrabec [Mon, 24 Feb 2020 17:38:55 +0000 (18:38 +0100)]
drm/sun4i: de2/de3: Remove unsupported VI layer formats
YUV444 and YVU444 are planar formats, but HW format RGB888 is packed.
This means that those two mappings were never correct. Remove them.
Fixes:
60a3dcf96aa8 ("drm/sun4i: Add DE2 definitions for YUV formats")
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-2-jernej.skrabec@siol.net
Dan Carpenter [Tue, 3 Mar 2020 10:16:08 +0000 (13:16 +0300)]
hwmon: (adt7462) Fix an error return in ADT7462_REG_VOLT()
This is only called from adt7462_update_device(). The caller expects it
to return zero on error. I fixed a similar issue earlier in commit
a4bf06d58f21 ("hwmon: (adt7462) ADT7462_REG_VOLT_MAX() should return 0")
but I missed this one.
Fixes:
c0b4e3ab0c76 ("adt7462: new hwmon driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Link: https://lore.kernel.org/r/20200303101608.kqjwfcazu2ylhi2a@kili.mountain
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Vincent Chen [Fri, 21 Feb 2020 02:47:55 +0000 (10:47 +0800)]
riscv: Change code model of module to medany to improve data accessing
All the loaded module locates in the region [&_end-2G,VMALLOC_END] at
runtime, so the distance from the module start to the end of the kernel
image does not exceed 2GB. Hence, the code model of the kernel module can
be changed to medany to improve the performance data access.
Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Vincent Chen [Fri, 21 Feb 2020 02:47:54 +0000 (10:47 +0800)]
riscv: avoid the PIC offset of static percpu data in module beyond 2G limits
The compiler uses the PIC-relative method to access static variables
instead of GOT when the code model is PIC. Therefore, the limitation of
the access range from the instruction to the symbol address is +-2GB.
Under this circumstance, the kernel cannot load a kernel module if this
module has static per-CPU symbols declared by DEFINE_PER_CPU(). The reason
is that kernel relocates the .data..percpu section of the kernel module to
the end of kernel's .data..percpu. Hence, the distance between the per-CPU
symbols and the instruction will exceed the 2GB limits. To solve this
problem, the kernel should place the loaded module in the memory area
[&_end-2G, VMALLOC_END].
Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Suggested-by: Alexandre Ghiti <alex@ghiti.fr>
Suggested-by: Anup Patel <anup@brainfault.org>
Tested-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Carlos de Paula <me@carlosedp.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Mike Snitzer [Thu, 27 Feb 2020 19:25:31 +0000 (14:25 -0500)]
dm: bump version of core and various targets
Changes made during the 5.6 cycle warrant bumping the version number
for DM core and the targets modified by this commit.
It should be noted that dm-thin, dm-crypt and dm-raid already had
their target version bumped during the 5.6 merge window.
Signed-off-by; Mike Snitzer <snitzer@redhat.com>
Hou Tao [Tue, 3 Mar 2020 08:45:01 +0000 (16:45 +0800)]
dm: fix congested_fn for request-based device
We neither assign congested_fn for requested-based blk-mq device nor
implement it correctly. So fix both.
Also, remove incorrect comment from dm_init_normal_md_queue and rename
it to dm_init_congested_fn.
Fixes:
4aa9c692e052 ("bdi: separate out congested state into a separate struct")
Cc: stable@vger.kernel.org
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Kees Cook [Thu, 20 Feb 2020 06:22:43 +0000 (22:22 -0800)]
fcntl: Distribute switch variables for initialization
Variables declared in a switch statement before any case statements
cannot be automatically initialized with compiler instrumentation (as
they are not part of any execution flow). With GCC's proposed automatic
stack variable initialization feature, this triggers a warning (and they
don't get initialized). Clang's automatic stack variable initialization
(via CONFIG_INIT_STACK_ALL=y) doesn't throw a warning, but it also
doesn't initialize such variables[1]. Note that these warnings (or silent
skipping) happen before the dead-store elimination optimization phase,
so even when the automatic initializations are later elided in favor of
direct initializations, the warnings remain.
To avoid these problems, move such variables into the "case" where
they're used or lift them up into the main function body.
fs/fcntl.c: In function ‘send_sigio_to_task’:
fs/fcntl.c:738:20: warning: statement will never be executed [-Wswitch-unreachable]
738 | kernel_siginfo_t si;
| ^~
[1] https://bugs.llvm.org/show_bug.cgi?id=44916
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Mike Snitzer [Fri, 28 Feb 2020 23:11:53 +0000 (18:11 -0500)]
dm integrity: use dm_bio_record and dm_bio_restore
In cases where dec_in_flight() has to requeue the integrity_bio_wait
work to transfer the rest of the data, the bio's __bi_remaining might
already have been decremented to 0, e.g.: if bio passed to underlying
data device was split via blk_queue_split().
Use dm_bio_{record,restore} rather than effectively open-coding them in
dm-integrity -- these methods now manage __bi_remaining too.
Depends-on:
f7f0b057a9c1 ("dm bio record: save/restore bi_end_io and bi_integrity")
Reported-by: Daniel Glöckner <dg@emlix.com>
Suggested-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Mike Snitzer [Fri, 28 Feb 2020 23:00:53 +0000 (18:00 -0500)]
dm bio record: save/restore bi_end_io and bi_integrity
Also, save/restore __bi_remaining in case the bio was used in a
BIO_CHAIN (e.g. due to blk_queue_split).
Suggested-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Omar Sandoval [Mon, 2 Mar 2020 22:02:49 +0000 (14:02 -0800)]
btrfs: fix RAID direct I/O reads with alternate csums
btrfs_lookup_and_bind_dio_csum() does pointer arithmetic which assumes
32-bit checksums. If using a larger checksum, this leads to spurious
failures when a direct I/O read crosses a stripe. This is easy
to reproduce:
# mkfs.btrfs -f --checksum blake2 -d raid0 /dev/vdc /dev/vdd
...
# mount /dev/vdc /mnt
# cd /mnt
# dd if=/dev/urandom of=foo bs=1M count=1 status=none
# dd if=foo of=/dev/null bs=1M iflag=direct status=none
dd: error reading 'foo': Input/output error
# dmesg | tail -1
[ 135.821568] BTRFS warning (device vdc): csum failed root 5 ino 257 off 421888 ...
Fix it by using the actual checksum size.
Fixes:
1e25a2e3ca0d ("btrfs: don't assume ordered sums to be 4 bytes")
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Dan Carpenter [Tue, 3 Mar 2020 10:18:58 +0000 (13:18 +0300)]
ASoC: SOF: Fix snd_sof_ipc_stream_posn()
We're passing "&posn" instead of "posn" so it ends up corrupting
memory instead of doing something useful.
Fixes:
53e0c72d98ba ("ASoC: SOF: Add support for IPC IO between DSP and Host")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200303101858.ytehbrivocyp3cnf@kili.mountain
Signed-off-by: Mark Brown <broonie@kernel.org>
Jack Yu [Tue, 3 Mar 2020 02:59:13 +0000 (10:59 +0800)]
ASoC: rt1015: modify pre-divider for sysclk
Modify pre-divider for system clock.
Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20200303025913.24499-1-jack.yu@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Sébastien Szymanski [Tue, 25 Feb 2020 12:39:04 +0000 (13:39 +0100)]
dt-bindings: arm: fsl: fix APF6Dev compatible
APF6 Dev compatible is armadeus,imx6dl-apf6dev and not
armadeus,imx6dl-apf6dldev.
Fixes:
3d735471d066 ("dt-bindings: arm: Document Armadeus SoM and Dev boards devicetree binding")
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Christophe Leroy [Thu, 27 Feb 2020 14:07:10 +0000 (14:07 +0000)]
selftest/lkdtm: Use local .gitignore
Commit
68ca0fd272da ("selftest/lkdtm: Don't pollute 'git status'")
introduced patterns for git to ignore files generated in
tools/testing/selftests/lkdtm/
Use local .gitignore file instead of using the root one.
Fixes:
68ca0fd272da ("selftest/lkdtm: Don't pollute 'git status'")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Christophe JAILLET [Fri, 28 Feb 2020 21:38:38 +0000 (22:38 +0100)]
spi: bcm63xx-hsspi: Really keep pll clk enabled
The purpose of commit
0fd85869c2a9 ("spi/bcm63xx-hsspi: keep pll clk enabled")
was to keep the pll clk enabled through the lifetime of the device.
In order to do that, some 'clk_prepare_enable()'/'clk_disable_unprepare()'
calls have been added in the error handling path of the probe function, in
the remove function and in the suspend and resume functions.
However, a 'clk_disable_unprepare()' call has been unfortunately left in
the probe function. So the commit seems to be more or less a no-op.
Axe it now, so that the pll clk is left enabled through the lifetime of
the device, as described in the commit.
Fixes:
0fd85869c2a9 ("spi/bcm63xx-hsspi: keep pll clk enabled")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://lore.kernel.org/r/20200228213838.7124-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Jack Yu [Mon, 2 Mar 2020 01:54:24 +0000 (09:54 +0800)]
ASoC: rt1015: add operation callback function for rt1015_dai[]
Add operation callback function for rt1015_dai[].
Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20200302015424.9075-1-jack.yu@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Linus Torvalds [Mon, 2 Mar 2020 12:54:54 +0000 (06:54 -0600)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Misc fixes: a pkeys fix for a bug that triggers with weird BIOS
settings, and two Xen PV fixes: a paravirt interface fix, and
pagetable dumping fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Fix dump_pagetables with Xen PV
x86/ioperm: Add new paravirt function update_io_bitmap()
x86/pkeys: Manually set X86_FEATURE_OSPKE to preserve existing changes
Linus Torvalds [Mon, 2 Mar 2020 12:51:43 +0000 (06:51 -0600)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
"Fix a scheduler statistics bug"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix statistics for find_idlest_group()
Linus Torvalds [Mon, 2 Mar 2020 12:46:39 +0000 (06:46 -0600)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"No kernel side changes, all tooling fixes plus two tooling cleanups
that were committed late in the merge window alongside the perf
annotate fixes, delayed by Arnaldo's European trip"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
perf annotate: Fix segfault with source toggle
perf annotate: Align struct annotate_args
perf annotate: Simplify disasm_line allocation and freeing code
perf annotate: Remove privsize from symbol__annotate() args
perf probe: Check return value of strlist__add() for -ENOMEM
perf config: Document missing config options
perf annotate: Fix perf config option description
perf annotate: Prefer cmdline option over default config
perf annotate: Make perf config effective
perf config: Introduce perf_config_u8()
perf annotate: Fix --show-nr-samples for tui/stdio2
perf annotate: Fix --show-total-period for tui/stdio2
perf annotate/tui: Re-render title bar after switching back from script browser
tools headers UAPI: Update tools's copy of kvm.h headers
tools arch x86: Sync the msr-index.h copy with the kernel sources
perf arch powerpc: Sync powerpc syscall.tbl with the kernel sources
perf auxtrace: Add auxtrace_record__read_finish()
perf arm-spe: Fix endless record after being terminated
perf cs-etm: Fix endless record after being terminated
perf intel-bts: Fix endless record after being terminated
...
Linus Torvalds [Mon, 2 Mar 2020 12:41:41 +0000 (06:41 -0600)]
Merge branch 'efi-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
"Three fixes to EFI mixed boot mode, mostly related to x86-64 vmap
stacks activated years ago, bug-fixed recently for EFI, which had
knock-on effects of various 1:1 mapping assumptions in mixed mode.
There's also a READ_ONCE() fix for reading an mmap-ed EFI firmware
data field only once, out of caution"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: READ_ONCE rng seed size before munmap
efi/x86: Handle by-ref arguments covering multiple pages in mixed mode
efi/x86: Remove support for EFI time and counter services in mixed mode
efi/x86: Align GUIDs to their size in the mixed mode runtime wrapper
Jean-Philippe Brucker [Thu, 27 Feb 2020 08:34:47 +0000 (09:34 +0100)]
arm64: context: Fix ASID limit in boot messages
Since commit
f88f42f853a8 ("arm64: context: Free up kernel ASIDs if KPTI
is not in use"), the NUM_USER_ASIDS macro doesn't correspond to the
effective number of ASIDs when KPTI is enabled. Get an accurate number
of available ASIDs in an arch_initcall, once we've discovered all CPUs'
capabilities and know if we still need to halve the ASID space for KPTI.
Fixes:
f88f42f853a8 ("arm64: context: Free up kernel ASIDs if KPTI is not in use")
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>