The sharp crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-35-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The pixpaper crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-34-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The cirrus crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-33-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The bochs crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-32-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The appletbdrm crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Acked-by: Aditya Garg <aditya.garg@linux.dev>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-31-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The KUnit test helpers use the deprecated
drm_atomic_helper_crtc_reset() as their reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-28-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The sun4i crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-27-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The stm crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Acked-by: Raphaël Gallais-Pou <raphael.gallais-pou@foss.st.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-26-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The sti crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Acked-by: Raphaël Gallais-Pou <rgallaispou@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-25-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The sprd crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-24-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The st7571 crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-23-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The simple KMS crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-22-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The reset_crtc hook in drm_simple_display_pipe_funcs allows simple
KMS drivers to provide a custom CRTC reset implementation. However,
no driver ever implemented it.
Remove the hook and the wrapper function, and use
drm_atomic_helper_crtc_reset() directly.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-21-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The shmobile crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-20-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The qxl crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-19-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The mxsfb crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-18-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The mdp4 crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-17-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The meson crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-16-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The kmb crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-14-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The ingenic crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Acked-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-13-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The imx dcss crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-12-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The imx dc crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-11-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The hyperv crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-10-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The kirin crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Acked-by: John Stultz <jstultz@google.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-9-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The hibmc crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-8-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The gud crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Acked-by: Ruben Wauters <rubenru09@aol.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-7-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The fsl-dcu crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-6-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The exynos crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-5-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The armada crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-4-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The hdlcd crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-3-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The adp crtc implementation uses the deprecated
drm_atomic_helper_crtc_reset() as its reset hook.
Switch to drm_atomic_helper_crtc_create_state() instead.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-1-fb793475c05a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The simple KMS helpers are deprecated because they only add an
intermediate layer between drivers and atomic modesetting.
All driver users of drm_simple_encoder_init() have been converted to
drm_encoder_init(). Drop the helper and open-code its remaining internal
use in drm_simple_display_pipe_init() to prevent new users.
Signed-off-by: Diogo Silva <diogompaissilva@gmail.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260720-drm_simple_encoder_init-v2-14-5020b630668a@gmail.com
drm_sysfb_plane_helper_atomic_disable() previously used
plane_state->src_* coordinates to construct the clear rectangle,
which depends on user-controlled input. Instead, clear the entire
visible framebuffer region using fb_mode dimensions, and use
drm_format_info_min_pitch() to compute the safe per-line clear size
without touching non-visible bytes at the end of each line.
Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260826075613.483617-1-oushixiong1025@163.com
DisplayPort supports EDID up to 256 bytes (blocks 0 and 1). Update the
block check to allow these two blocks. For any block beyond that
(i.e. the monitor's EDID is larger than the 256 bytes ASPEED DP can
hold), report it as an all-zero block instead of a read failure.
Also remove the manual checksum/extension-count patch of block 0's
last four bytes. That code was already dead, so the condition can never
be true.
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260819-upstream_ast_dp_edid-v3-1-15d36c28afe2@aspeedtech.com
Getting drm-misc-next up to v7.3-rc1.
In exynos, there was a conflict in exynos_dbi_bind(). The merge resolves
it to the state of commit 3cc8eee9f3 ("drm/exynos: remove dependency
on DRM simple helpers").
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Sang-Heon Jeon <ekffu200098@gmail.com> has cleaned up a number
of the semantic patches in the scripts/coccinelle directory,
particularly with respect to functions that no longer exist in
the kernel. He and I have also done some reorganizations that
improve performance.
I eliminatd some false positives.
相浦彰 / AIURA，AKIRA <akira.aiura.bj@hitachi.com> fixed an
out of date URL.
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Merge tag 'cocci-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux
Pull Coccinelle updates from Julia Lawall:
- Clean up a number of the semantic patches in the scripts/coccinelle
directory, particularly with respect to functions that no longer
exist in the kernel (Sang-Heon Jeon)
He and I have also done some reorganizations that improve
performance.
- Eliminate some false positives (me)
- Fix an out of date URL (相浦彰)
* tag 'cocci-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
coccinelle: ifnulldev_put: update error message
coccinelle: ifnulldev_put: update outdated helper names
coccinelle: atomic_as_refcounter: drop atomic_long_dec_and_lock
coccinelle: kfree_mismatch: drop vmalloc_exec
coccinelle: pool_zalloc-simple: drop the pci_pool_alloc rules
coccinelle: zalloc-simple: drop the kmem_alloc rules
coccinelle: alloc_cast: drop removed allocators
coccinelle: remove obsolete pci_free_consistent.cocci
scripts: coccinelle: devm_free: reduce false positives
coccinelle: misc: struct_size: drop unneeded parentheses
coccinelle: mini_lock: improve performance when searching loops
coccinelle: api: check for macro context
coccinelle: update Coccinelle website URL
coccinelle: misc: minmax: avoid unhelpful isomorphisms
coccinelle: misc: minmax: check for the presence of if cases
coccinelle: misc: minmax: drop unneeded parentheses
coccinelle: misc: minmax: improve performance when no candidate exists
coccinelle: double_lock: improve performance when no double lock exists
Add myself to CREDITS because apparently I've never done that; and
update mailmap so that all my old email addresses get remapped to the
kernel.org redirector.
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
specific timex.h header. (Thomas Weißschuh)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2026-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Ingo Molnar:
- Fix UM build regression caused by the removal of the UM
specific timex.h header (Thomas Weißschuh)
* tag 'timers-urgent-2026-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
um: Use asm-generic/timex.h over the host architecture one
in the subtle limitations & fragility of guards (again...) and
caused a regression (Peter Zijlstra)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-urgent-2026-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fix from Ingo Molnar:
- Revert a commit to spinlock cleanup guards that got caught up
in the subtle limitations & fragility of guards (again...) and
caused a regression (Peter Zijlstra)
* tag 'locking-urgent-2026-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking: Revert switching guards to _irq_{disable,enable}()
Toolchain and infrastructure:
- Fix KCFI failures, such as in Rust doctests, by disabling function
merging when CFI is enabled. Gary reported the LLVM bug to upstream
and it is now fixed in their mainline.
- Fix 'objtool' fallthrough warnings under the experimental
'CONFIG_RUST_INLINE_HELPERS' by passing (for the combined Rust and
helpers code) the LLVM options needed to preserve the unreachable
traps that 'rustc' normally emits.
In addition, fix 'objtool' errors when LTO is enabled on top, by
also filtering out the LTO flags (for the combined Rust and helpers
code) so that the traps are kept in place.
- Fix 'objtool' warnings by adding one more 'noreturn' function.
- Fix 'make rusttest' target when the 'rustc-dev' component is
installed and Rust >= 1.82.0, <= 1.87.0 is used.
'kernel' crate:
- 'num' module: fix soundness issue in the 'Bounded' conversion from
'bool' by restricting the conversions to unsigned 'Bounded'.
- 'jump_label' module: fix future 'make rusttest' target failures when
'ARCH=' is set to an arch different than the host's.
- 'list' module: fix incorrect 'pop_back()' comment.
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Merge tag 'rust-fixes-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust fixes from Miguel Ojeda:
"Toolchain and infrastructure:
- Fix KCFI failures, such as in Rust doctests, by disabling function
merging when CFI is enabled. Gary reported the LLVM bug to upstream
and it is now fixed in their mainline.
- Fix 'objtool' fallthrough warnings under the experimental
'CONFIG_RUST_INLINE_HELPERS' by passing (for the combined Rust and
helpers code) the LLVM options needed to preserve the unreachable
traps that 'rustc' normally emits.
In addition, fix 'objtool' errors when LTO is enabled on top, by
also filtering out the LTO flags (for the combined Rust and helpers
code) so that the traps are kept in place.
- Fix 'objtool' warnings by adding one more 'noreturn' function.
- Fix 'make rusttest' target when the 'rustc-dev' component is
installed and Rust >= 1.82.0, <= 1.87.0 is used.
'kernel' crate:
- 'num' module: fix soundness issue in the 'Bounded' conversion from
'bool' by restricting the conversions to unsigned 'Bounded'.
- 'jump_label' module: fix future 'make rusttest' target failures
when 'ARCH=' is set to an arch different than the host's.
- 'list' module: fix incorrect 'pop_back()' comment"
* tag 'rust-fixes-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
rust: kbuild: disambiguate `zerocopy_derive` for `rusttest`
rust: num: restrict bool conversion to unsigned Bounded
kbuild: rust: keep Rust objects out of Clang LTO with inline helpers
kbuild: rust: preserve unreachable traps with inline helpers
rust: cfi: disable function merging if CFI is enabled
rust: jump_label: skip arch-specific asm in `testlib` builds
objtool/rust: add one more `noreturn` Rust function
rust: kernel: list: fix incorrect pop_back example comment
- add module description for kprobes testing module
- remove references to CONFIG_CPU_ARM92x_CPU_IDLE options
- expand comment in ARM's __switch_to()
Also a number of fixes that missed 7.2:
- disable broken eBPF on RiscPC
- more BKPT fixes (guys, it's a *very* bad idea when everyone uses
the BKPT instruction for their own differing purposes.)
- another preempt-rt fix, this time for siglock / CPU timers
- fix another path where we try to send signals to processes
with interrupts disabled
- acquire mmap write lock for show_pte() with user faults
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux
Pull arm updates from Russell King:
"Updates for 7.3:
- add module description for kprobes testing module
- remove references to CONFIG_CPU_ARM92x_CPU_IDLE options
- expand comment in ARM's __switch_to()
Also a number of fixes that missed 7.2:
- disable broken eBPF on RiscPC
- more BKPT fixes (guys, it's a *very* bad idea when everyone uses
the BKPT instruction for their own differing purposes)
- another preempt-rt fix, this time for siglock / CPU timers
- fix another path where we try to send signals to processes with
interrupts disabled
- acquire mmap write lock for show_pte() with user faults"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
ARM: 9480/1: entry: expand comment in __switch_to
ARM: 9478/1: Remove references to removed CONFIG_CPU_ARM92x_CPU_IDLE options
ARM: 9485/1: mm: acquire mmap write lock around show_pte() for user faults
ARM: 9484/1: enable interrupts when unhandled user faults are triggered
ARM: 9483/1: select HAVE_POSIX_CPU_TIMERS_TASK_WORK
ARM: 9481/2: breakpoint: CFI breakpoints only on demand
ARM: 9477/1: Disable broken eBPF JIT on the Risc PC
ARM: 9473/1: kprobes: test: add MODULE_DESCRIPTION
One small item and one bug fix.
* The bug fix is to fix an unchecked access in our or1k_atomic syscall,
I am debating if we should just deprecate this as there is minimal
need for it.
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Merge tag 'for-linus' of https://github.com/openrisc/linux
Pull OpenRISC updates from Stafford Horne:
"One small trivial macro cleanup and one bug fix.
The bug fix is to fix an unchecked access in our or1k_atomic syscall,
I am debating if we should just deprecate this as there is minimal
need for it"
* tag 'for-linus' of https://github.com/openrisc/linux:
openrisc: fix arbitrary kernel memory access via or1k_atomic syscall
openrisc: drop unneeded semicolon
- Fix error output of boot instance creation failure
Currently if a boot instance creation fails, instead of printing out the
name of the instance that failed, it prints "(null)". That is because it
prints "cur_str" that had already been processed by strsep(). Print the
saved name instead.
While at it, print the error code of the failure.
- Fix use-after-free for same named historgrams
Histograms can be named so that they can be used in multiple events. But
if the named histogram has a variable attached, the second event that uses
the named histogram which duplicates it and needs to free the original
after duplication leaves the old variable in place and still visible. If
another histogram uses than variable, it will use the stale one which will
try to reference the freed duplicate histogram and crash the kernel.
Free the duplicate variables along with the duplicated histogram data.
- Check return value of kthread_run() in event self test
The events self tests uses a kthread for testing but does not check if it
succeeded in creating a kthread. If the kthread creation were to fail, the
code will still try to call kthread_stop() on the error returned.
- Fix race between reading trace_pipe and updating subbuffer size
If a user is reading the trace_pipe file at the same time they update the
ring buffer sub-buffer size, can cause the trace_pipe read to read stale
data. Add trace_access_lock() around updating the ring buffer sub-buffer
size.
- Fix eventfs_inode on failure path in creation of the events directory
In the creation of the "events" directory, if after allocating the
eventfs_inode a failure is detected, it calls cleanup_ei() which calls
free_ei(). The free_ei() will test if eventfs_inode being freed has no
children. It is a bug if it does. But on the failure case of the creation
of the "events" directory, the children lists have not yet been
initialized and the free will trigger a warning because list_empty() on an
uninitialized list returns false.
Move the initialization into init_ei() where it makes more sense and makes
sure that a created eventfs_inode has its lists initialized upon creation.
- Check return value of kthread_run() in ftrace direct sample code
The sample code that shows how to use the ftrace direct calls does not
test the return of kthread_run() to see if it succeeds. Return a failure
if the kthread_run() doesn't succeed.
- Clear user events state on fork in case of alloc failure
On fork, the child gets a pointer to the parent's user events state. It
makes a copy of it then updates the child's pointer to it. But if the
allocation fails, the duplication function leaves the child with a pointer
to its parent's descriptor. When the child cleans up its data, it will free
the parent's descriptor while the parent is still using it.
In the duplication function, set the child's user_event_mm to NULL before
testing if the allocation succeeded, and when it exits it will not free
the parent's descriptor.
- Fix retry exhaustion in simple ring buffer reader swap
simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
post-decrements it only after a failed link replacement. On the final
attempt, a successful replacement leaves retry at zero, while a failed
replacement leaves it at -1.
But the check for success expects the retry value to be non-zero and exits
with an error on zero. This is the opposite result. Fix it.
- Fail nicely when the remote swap_reader_page() returns an error
Currently, if the swap_reader_page() of a remote buffer fails, it triggers
a WARN_ON_ONCE() and continues normally. Instead, have it exit with an
error and a pr_warn() print instead of a full WARNING.
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Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix error output of boot instance creation failure
Currently if a boot instance creation fails, instead of printing out
the name of the instance that failed, it prints "(null)". That is
because it prints "cur_str" that had already been processed by
strsep(). Print the saved name instead.
While at it, print the error code of the failure.
- Fix use-after-free for same named historgrams
Histograms can be named so that they can be used in multiple events.
But if the named histogram has a variable attached, the second event
that uses the named histogram which duplicates it and needs to free
the original after duplication leaves the old variable in place and
still visible. If another histogram uses than variable, it will use
the stale one which will try to reference the freed duplicate
histogram and crash the kernel.
Free the duplicate variables along with the duplicated histogram
data.
- Check return value of kthread_run() in event self test
The events self tests uses a kthread for testing but does not check
if it succeeded in creating a kthread. If the kthread creation were
to fail, the code will still try to call kthread_stop() on the error
returned.
- Fix race between reading trace_pipe and updating subbuffer size
If a user is reading the trace_pipe file at the same time they update
the ring buffer sub-buffer size, can cause the trace_pipe read to
read stale data. Add trace_access_lock() around updating the ring
buffer sub-buffer size.
- Fix eventfs_inode on failure path in creation of the events directory
In the creation of the "events" directory, if after allocating the
eventfs_inode a failure is detected, it calls cleanup_ei() which
calls free_ei(). The free_ei() will test if eventfs_inode being freed
has no children. It is a bug if it does. But on the failure case of
the creation of the "events" directory, the children lists have not
yet been initialized and the free will trigger a warning because
list_empty() on an uninitialized list returns false.
Move the initialization into init_ei() where it makes more sense and
makes sure that a created eventfs_inode has its lists initialized
upon creation.
- Check return value of kthread_run() in ftrace direct sample code
The sample code that shows how to use the ftrace direct calls does
not test the return of kthread_run() to see if it succeeds. Return a
failure if the kthread_run() doesn't succeed.
- Clear user events state on fork in case of alloc failure
On fork, the child gets a pointer to the parent's user events state.
It makes a copy of it then updates the child's pointer to it. But if
the allocation fails, the duplication function leaves the child with
a pointer to its parent's descriptor. When the child cleans up its
data, it will free the parent's descriptor while the parent is still
using it.
In the duplication function, set the child's user_event_mm to NULL
before testing if the allocation succeeded, and when it exits it will
not free the parent's descriptor.
- Fix retry exhaustion in simple ring buffer reader swap
simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
post-decrements it only after a failed link replacement. On the final
attempt, a successful replacement leaves retry at zero, while a
failed replacement leaves it at -1.
But the check for success expects the retry value to be non-zero and
exits with an error on zero. This is the opposite result. Fix it.
- Fail nicely when the remote swap_reader_page() returns an error
Currently, if the swap_reader_page() of a remote buffer fails, it
triggers a WARN_ON_ONCE() and continues normally. Instead, have it
exit with an error and a pr_warn() print instead of a full WARNING.
* tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Stop remote reader update when page swap fails
tracing: Fix retry exhaustion in simple ring buffer reader swap
tracing/user_events: Clear copied tracing state before fork duplication
samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify
samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify
eventfs: Initialize ei->children and ei->list in init_ei()
tracing: Fix use-after-free in trace_pipe read on sub-buffer order change
tracing: Fix crash passing ERR_PTR to kthread_stop()
tracing: Fix use-after-free with same-name named triggers
tracing: Fix logged instance name on creation failure
dev_put_track() and dev_hold_track() were renamed to netdev_put() and
netdev_hold() by commit d62607c3fe ("net: rename reference+tracking
helpers").
So update the names.
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
atomic_long_dec_and_lock() has never existed. So drop it from the rules.
No functional change.
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
vmalloc_exec() was removed by commit 7a0e27b2a0 ("mm: remove
vmalloc_exec").
So drop it from the rules.
No functional change.
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
