mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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1,447,411 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
4d84667627 |
Performance events changes for v7.0:
x86 PMU driver updates:
- Add support for the core PMU for Intel Diamond Rapids (DMR) CPUs.
Compared to previous iterations of the Intel PMU code, there's
been a lot of changes, which center around three main areas:
- Introduce the OFF-MODULE RESPONSE (OMR) facility to
replace the Off-Core Response (OCR) facility
- New PEBS data source encoding layout
- Support the new "RDPMC user disable" feature
(Dapeng Mi)
- Likewise, a large series adds uncore PMU support for
Intel Diamond Rapids (DMR) CPUs, which center around these
four main areas:
- DMR may have two Integrated I/O and Memory Hub (IMH) dies,
separate from the compute tile (CBB) dies. Each CBB and
each IMH die has its own discovery domain.
- Unlike prior CPUs that retrieve the global discovery table
portal exclusively via PCI or MSR, DMR uses PCI for IMH PMON
discovery and MSR for CBB PMON discovery.
- DMR introduces several new PMON types: SCA, HAMVF, D2D_ULA,
UBR, PCIE4, CRS, CPC, ITC, OTC, CMS, and PCIE6.
- IIO free-running counters in DMR are MMIO-based, unlike SPR.
(Zide Chen)
- Also add support for Add missing PMON units for Intel Panther Lake,
and support Nova Lake (NVL), which largely maps to Panther Lake.
(Zide Chen)
- KVM integration: Add support for mediated vPMUs (by Kan Liang
and Sean Christopherson, with fixes and cleanups by Peter Zijlstra,
Sandipan Das and Mingwei Zhang)
- Add Intel cstate driver to support for Wildcat Lake (WCL)
CPUs, which are a low-power variant of Panther Lake.
(Zide Chen)
- Add core, cstate and MSR PMU support for the Airmont NP Intel CPU
(aka MaxLinear Lightning Mountain), which maps to the existing
Airmont code. (Martin Schiller)
Performance enhancements:
- core: Speed up kexec shutdown by avoiding unnecessary
cross CPU calls. (Jan H. Schönherr)
- core: Fix slow perf_event_task_exit() with LBR callstacks
(Namhyung Kim)
User-space stack unwinding support:
- Various cleanups and refactorings in preparation to generalize
the unwinding code for other architectures. (Jens Remus)
Uprobes updates:
- Transition from kmap_atomic to kmap_local_page (Keke Ming)
- Fix incorrect lockdep condition in filter_chain() (Breno Leitao)
- Fix XOL allocation failure for 32-bit tasks (Oleg Nesterov)
Misc fixes and cleanups:
- s390: Remove kvm_types.h from Kbuild (Randy Dunlap)
- x86/intel/uncore: Convert comma to semicolon (Chen Ni)
- x86/uncore: Clean up const mismatch (Greg Kroah-Hartman)
- x86/ibs: Fix typo in dc_l2tlb_miss comment (Xiang-Bin Shi)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance event updates from Ingo Molnar:
"x86 PMU driver updates:
- Add support for the core PMU for Intel Diamond Rapids (DMR) CPUs
(Dapeng Mi)
Compared to previous iterations of the Intel PMU code, there's been
a lot of changes, which center around three main areas:
- Introduce the OFF-MODULE RESPONSE (OMR) facility to replace the
Off-Core Response (OCR) facility
- New PEBS data source encoding layout
- Support the new "RDPMC user disable" feature
- Likewise, a large series adds uncore PMU support for Intel Diamond
Rapids (DMR) CPUs (Zide Chen)
This centers around these four main areas:
- DMR may have two Integrated I/O and Memory Hub (IMH) dies,
separate from the compute tile (CBB) dies. Each CBB and each IMH
die has its own discovery domain.
- Unlike prior CPUs that retrieve the global discovery table
portal exclusively via PCI or MSR, DMR uses PCI for IMH PMON
discovery and MSR for CBB PMON discovery.
- DMR introduces several new PMON types: SCA, HAMVF, D2D_ULA, UBR,
PCIE4, CRS, CPC, ITC, OTC, CMS, and PCIE6.
- IIO free-running counters in DMR are MMIO-based, unlike SPR.
- Also add support for Add missing PMON units for Intel Panther Lake,
and support Nova Lake (NVL), which largely maps to Panther Lake.
(Zide Chen)
- KVM integration: Add support for mediated vPMUs (by Kan Liang and
Sean Christopherson, with fixes and cleanups by Peter Zijlstra,
Sandipan Das and Mingwei Zhang)
- Add Intel cstate driver to support for Wildcat Lake (WCL) CPUs,
which are a low-power variant of Panther Lake (Zide Chen)
- Add core, cstate and MSR PMU support for the Airmont NP Intel CPU
(aka MaxLinear Lightning Mountain), which maps to the existing
Airmont code (Martin Schiller)
Performance enhancements:
- Speed up kexec shutdown by avoiding unnecessary cross CPU calls
(Jan H. Schönherr)
- Fix slow perf_event_task_exit() with LBR callstacks (Namhyung Kim)
User-space stack unwinding support:
- Various cleanups and refactorings in preparation to generalize the
unwinding code for other architectures (Jens Remus)
Uprobes updates:
- Transition from kmap_atomic to kmap_local_page (Keke Ming)
- Fix incorrect lockdep condition in filter_chain() (Breno Leitao)
- Fix XOL allocation failure for 32-bit tasks (Oleg Nesterov)
Misc fixes and cleanups:
- s390: Remove kvm_types.h from Kbuild (Randy Dunlap)
- x86/intel/uncore: Convert comma to semicolon (Chen Ni)
- x86/uncore: Clean up const mismatch (Greg Kroah-Hartman)
- x86/ibs: Fix typo in dc_l2tlb_miss comment (Xiang-Bin Shi)"
* tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
s390: remove kvm_types.h from Kbuild
uprobes: Fix incorrect lockdep condition in filter_chain()
x86/ibs: Fix typo in dc_l2tlb_miss comment
x86/uprobes: Fix XOL allocation failure for 32-bit tasks
perf/x86/intel/uncore: Convert comma to semicolon
perf/x86/intel: Add support for rdpmc user disable feature
perf/x86: Use macros to replace magic numbers in attr_rdpmc
perf/x86/intel: Add core PMU support for Novalake
perf/x86/intel: Add support for PEBS memory auxiliary info field in NVL
perf/x86/intel: Add core PMU support for DMR
perf/x86/intel: Add support for PEBS memory auxiliary info field in DMR
perf/x86/intel: Support the 4 new OMR MSRs introduced in DMR and NVL
perf/core: Fix slow perf_event_task_exit() with LBR callstacks
perf/core: Speed up kexec shutdown by avoiding unnecessary cross CPU calls
uprobes: use kmap_local_page() for temporary page mappings
arm/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
mips/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
arm64/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
riscv/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
perf/x86/intel/uncore: Add Nova Lake support
...
|
||
|
Linus Torvalds
|
a9aabb3b83 |
Rust changes for v6.20 / v7.0
Toolchain and infrastructure:
- Add '__rust_helper' annotation to the C helpers.
This is needed to inline these helpers into Rust code.
- Remove imports available via the prelude, treewide.
This was possible thanks to a new lint in Klint that Gary has
implemented -- more Klint-related changes, including initial upstream
support, are coming.
- Deduplicate pin-init flags.
'kernel' crate:
- Add support for calling a function exactly once with the new
'do_once_lite!' macro (and 'OnceLite' type).
Based on this, add 'pr_*_once!' macros to print only once.
- Add 'impl_flags!' macro for defining common bitflags operations:
impl_flags!(
/// Represents multiple permissions.
#[derive(Debug, Clone, Default, Copy, PartialEq, Eq)]
pub struct Permissions(u32);
/// Represents a single permission.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Permission {
/// Read permission.
Read = 1 << 0,
/// Write permission.
Write = 1 << 1,
/// Execute permission.
Execute = 1 << 2,
}
);
let mut f: Permissions = Permission::Read | Permission::Write;
assert!(f.contains(Permission::Read));
assert!(!f.contains(Permission::Execute));
f |= Permission::Execute;
assert!(f.contains(Permission::Execute));
let f2: Permissions = Permission::Write | Permission::Execute;
assert!((f ^ f2).contains(Permission::Read));
assert!(!(f ^ f2).contains(Permission::Write));
- 'bug' module: support 'CONFIG_DEBUG_BUGVERBOSE_DETAILED' in the
'warn_on!' macro in order to show the evaluated condition alongside
the file path:
------------[ cut here ]------------
WARNING: [val == 1] linux/samples/rust/rust_minimal.rs:27 at ...
Modules linked in: rust_minimal(+)
- Add safety module with 'unsafe_precondition_assert!' macro, currently
a wrapper for 'debug_assert!', intended to mark the validation of
safety preconditions where possible:
/// # Safety
///
/// The caller must ensure that `index` is less than `N`.
unsafe fn set_unchecked(&mut self, index: usize, value: T) {
unsafe_precondition_assert!(
index < N,
"set_unchecked() requires index ({index}) < N ({N})"
);
...
}
- Add instructions to 'build_assert!' documentation requesting to
always inline functions when used with function arguments.
- 'ptr' module: replace 'build_assert!' with a 'const' one.
- 'rbtree' module: reduce unsafe blocks on pointer derefs.
- 'transmute' module: implement 'FromBytes' and 'AsBytes' for
inhabited ZSTs, and use it in Nova.
- More treewide replacements of 'c_str!' with C string literals.
'macros' crate:
- Rewrite most procedural macros ('module!', 'concat_idents!',
'#[export]', '#[vtable]', '#[kunit_tests]') to use the 'syn' parsing
library which we introduced last cycle, with better diagnostics.
This also allows to support '#[cfg]' properly in the '#[vtable]'
macro, to support arbitrary types in 'module!' macro (not just an
identifier) and to remove several custom parsing helpers we had.
- Use 'quote!' from the recently vendored 'quote' library and remove
our custom one.
The vendored one also allows us to avoid quoting '"' and '{}' inside
the template anymore and editors can now highlight it. In addition,
it improves robustness as it eliminates the need for string quoting
and escaping.
- Use 'pin_init::zeroed()' to simplify KUnit code.
'pin-init' crate:
- Rewrite all procedural macros ('[pin_]init!', '#[pin_data]',
'#[pinned_drop]', 'derive([Maybe]Zeroable)') to use the 'syn' parsing
library which we introduced last cycle, with better diagnostics.
- Implement 'InPlaceWrite' for '&'static mut MaybeUninit<T>'. This
enables users to use external allocation mechanisms such as
'static_cell'.
- Support tuple structs in 'derive([Maybe]Zeroable)'.
- Support attributes on fields in '[pin_]init!' (such as
'#[cfg(...)]').
- Add a '#[default_error(<type>)]' attribute to '[pin_]init!' to
override the default error (when no '? Error' is specified).
- Support packed structs in '[pin_]init!' with
'#[disable_initialized_field_access]'.
- Remove 'try_[pin_]init!' in favor of merging their feature
with '[pin_]init!'. Update the kernel's own 'try_[pin_]init!'
macros to use the 'default_error' attribute.
- Correct 'T: Sized' bounds to 'T: ?Sized' in the generated
'PinnedDrop' check by '#[pin_data]'.
Documentation:
- Conclude the Rust experiment.
MAINTAINERS:
- Add "RUST [RUST-ANALYZER]" entry for the rust-analyzer support. Tamir
and Jesung will take care of it. They have both been active around it
for a while. The new tree will flow through the Rust one.
- Add Gary as maintainer for "RUST [PIN-INIT]".
- Update Boqun and Tamir emails to their kernel.org accounts.
And a few other cleanups and improvements.
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Merge tag 'rust-6.20-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Add '__rust_helper' annotation to the C helpers
This is needed to inline these helpers into Rust code
- Remove imports available via the prelude, treewide
This was possible thanks to a new lint in Klint that Gary has
implemented -- more Klint-related changes, including initial
upstream support, are coming
- Deduplicate pin-init flags
'kernel' crate:
- Add support for calling a function exactly once with the new
'do_once_lite!' macro (and 'OnceLite' type)
Based on this, add 'pr_*_once!' macros to print only once
- Add 'impl_flags!' macro for defining common bitflags operations:
impl_flags!(
/// Represents multiple permissions.
#[derive(Debug, Clone, Default, Copy, PartialEq, Eq)]
pub struct Permissions(u32);
/// Represents a single permission.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Permission {
/// Read permission.
Read = 1 << 0,
/// Write permission.
Write = 1 << 1,
/// Execute permission.
Execute = 1 << 2,
}
);
let mut f: Permissions = Permission::Read | Permission::Write;
assert!(f.contains(Permission::Read));
assert!(!f.contains(Permission::Execute));
f |= Permission::Execute;
assert!(f.contains(Permission::Execute));
let f2: Permissions = Permission::Write | Permission::Execute;
assert!((f ^ f2).contains(Permission::Read));
assert!(!(f ^ f2).contains(Permission::Write));
- 'bug' module: support 'CONFIG_DEBUG_BUGVERBOSE_DETAILED' in the
'warn_on!' macro in order to show the evaluated condition alongside
the file path:
------------[ cut here ]------------
WARNING: [val == 1] linux/samples/rust/rust_minimal.rs:27 at ...
Modules linked in: rust_minimal(+)
- Add safety module with 'unsafe_precondition_assert!' macro,
currently a wrapper for 'debug_assert!', intended to mark the
validation of safety preconditions where possible:
/// # Safety
///
/// The caller must ensure that `index` is less than `N`.
unsafe fn set_unchecked(&mut self, index: usize, value: T) {
unsafe_precondition_assert!(
index < N,
"set_unchecked() requires index ({index}) < N ({N})"
);
...
}
- Add instructions to 'build_assert!' documentation requesting to
always inline functions when used with function arguments
- 'ptr' module: replace 'build_assert!' with a 'const' one
- 'rbtree' module: reduce unsafe blocks on pointer derefs
- 'transmute' module: implement 'FromBytes' and 'AsBytes' for
inhabited ZSTs, and use it in Nova
- More treewide replacements of 'c_str!' with C string literals
'macros' crate:
- Rewrite most procedural macros ('module!', 'concat_idents!',
'#[export]', '#[vtable]', '#[kunit_tests]') to use the 'syn'
parsing library which we introduced last cycle, with better
diagnostics
This also allows to support '#[cfg]' properly in the '#[vtable]'
macro, to support arbitrary types in 'module!' macro (not just an
identifier) and to remove several custom parsing helpers we had
- Use 'quote!' from the recently vendored 'quote' library and remove
our custom one
The vendored one also allows us to avoid quoting '"' and '{}'
inside the template anymore and editors can now highlight it. In
addition, it improves robustness as it eliminates the need for
string quoting and escaping
- Use 'pin_init::zeroed()' to simplify KUnit code
'pin-init' crate:
- Rewrite all procedural macros ('[pin_]init!', '#[pin_data]',
'#[pinned_drop]', 'derive([Maybe]Zeroable)') to use the 'syn'
parsing library which we introduced last cycle, with better
diagnostics
- Implement 'InPlaceWrite' for '&'static mut MaybeUninit<T>'. This
enables users to use external allocation mechanisms such as
'static_cell'
- Support tuple structs in 'derive([Maybe]Zeroable)'
- Support attributes on fields in '[pin_]init!' (such as
'#[cfg(...)]')
- Add a '#[default_error(<type>)]' attribute to '[pin_]init!' to
override the default error (when no '? Error' is specified)
- Support packed structs in '[pin_]init!' with
'#[disable_initialized_field_access]'
- Remove 'try_[pin_]init!' in favor of merging their feature with
'[pin_]init!'. Update the kernel's own 'try_[pin_]init!' macros to
use the 'default_error' attribute
- Correct 'T: Sized' bounds to 'T: ?Sized' in the generated
'PinnedDrop' check by '#[pin_data]'
Documentation:
- Conclude the Rust experiment
MAINTAINERS:
- Add "RUST [RUST-ANALYZER]" entry for the rust-analyzer support.
Tamir and Jesung will take care of it. They have both been active
around it for a while. The new tree will flow through the Rust one
- Add Gary as maintainer for "RUST [PIN-INIT]"
- Update Boqun and Tamir emails to their kernel.org accounts
And a few other cleanups and improvements"
* tag 'rust-6.20-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (59 commits)
rust: safety: introduce `unsafe_precondition_assert!` macro
rust: add `impl_flags!` macro for defining common bitflag operations
rust: print: Add pr_*_once macros
rust: bug: Support DEBUG_BUGVERBOSE_DETAILED option
rust: print: Add support for calling a function exactly once
rust: kbuild: deduplicate pin-init flags
gpu: nova-core: remove imports available via prelude
rust: clk: replace `kernel::c_str!` with C-Strings
MAINTAINERS: Update my email address to @kernel.org
rust: macros: support `#[cfg]` properly in `#[vtable]` macro.
rust: kunit: use `pin_init::zeroed` instead of custom null value
rust: macros: rearrange `#[doc(hidden)]` in `module!` macro
rust: macros: allow arbitrary types to be used in `module!` macro
rust: macros: convert `#[kunit_tests]` macro to use `syn`
rust: macros: convert `concat_idents!` to use `syn`
rust: macros: convert `#[export]` to use `syn`
rust: macros: use `quote!` for `module!` macro
rust: macros: use `syn` to parse `module!` macro
rust: macros: convert `#[vtable]` macro to use `syn`
rust: macros: use `quote!` from vendored crate
...
|
||
|
Linus Torvalds
|
f144367d01 |
bitmap updates for v6.20
- more rust helpers (Alice); - more bitops tests (Ryota); - FIND_NTH_BIT() uninitialized variable fix (Lee Yongjun); - random cleanups (Andy, H. Peter). -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmmJIqMACgkQsUSA/Tof vsj/uwv/WIv9Wa3oTm3qzkIyaxeowIQE+DeDduporSoO8fnVfEYHjPuihMy3J5Gv x6iNUq9n8fMhmg/qHHyKwb/Ow8Ob11re9MZWS6a02wlm8Het0W9hKEk1z7qauFsI Vqq3rlMO3wYGaSPmlnh7rn/NHByrJ49ZrJcoX3he0Ov5MKp1w+dP3Czee4HGTb3A SM0cf4iCR3/Jj3flTsMghZgqZKNhsIe+ejX++dFPhmv82FHbIBcwUfN6CM27OGdy M7GAro1xIaoTwQVKCO2AycLAu8j+Rx9s+mcGuIAWynDo6YG1tVetADZQ+nRJG+x9 WdUDZwBDyEZlx/8BGnS56wevYxXEfC0lMTTgBqsYlCtLToyeE8G6NUVCLzEJAQCJ iWhcsenQVIiEHtYBZI/o2PmEp1Puzk1jI0+uFib1jE5Llf3+FrfMQGOiN2TBStEa zVIOipr+L9EaBbJdiKCV1jTl/MoDuCdRPLyby8egxPS+rk4RugvDsGc31XN48118 OHIJO2M/ =WnLV -----END PGP SIGNATURE----- Merge tag 'bitmap-for-6.20' of https://github.com/norov/linux Pull bitmap updates from Yury Norov: - more rust helpers (Alice) - more bitops tests (Ryota) - FIND_NTH_BIT() uninitialized variable fix (Lee Yongjun) - random cleanups (Andy, H. Peter) * tag 'bitmap-for-6.20' of https://github.com/norov/linux: lib/tests: extend KUnit test for bitops with more cases bitops: Add more files to the MAINTAINERS lib/find_bit: fix uninitialized variable use in FIND_NTH_BIT lib/tests: add KUnit test for bitops rust: cpumask: add __rust_helper to helpers rust: bitops: add __rust_helper to helpers rust: bitmap: add __rust_helper to helpers linux/bitfield.h: replace __auto_type with auto |
||
|
Linus Torvalds
|
f17b474e36 |
bpf-next-7.0
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Merge tag 'bpf-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
- Support associating BPF program with struct_ops (Amery Hung)
- Switch BPF local storage to rqspinlock and remove recursion detection
counters which were causing false positives (Amery Hung)
- Fix live registers marking for indirect jumps (Anton Protopopov)
- Introduce execution context detection BPF helpers (Changwoo Min)
- Improve verifier precision for 32bit sign extension pattern
(Cupertino Miranda)
- Optimize BTF type lookup by sorting vmlinux BTF and doing binary
search (Donglin Peng)
- Allow states pruning for misc/invalid slots in iterator loops (Eduard
Zingerman)
- In preparation for ASAN support in BPF arenas teach libbpf to move
global BPF variables to the end of the region and enable arena kfuncs
while holding locks (Emil Tsalapatis)
- Introduce support for implicit arguments in kfuncs and migrate a
number of them to new API. This is a prerequisite for cgroup
sub-schedulers in sched-ext (Ihor Solodrai)
- Fix incorrect copied_seq calculation in sockmap (Jiayuan Chen)
- Fix ORC stack unwind from kprobe_multi (Jiri Olsa)
- Speed up fentry attach by using single ftrace direct ops in BPF
trampolines (Jiri Olsa)
- Require frozen map for calculating map hash (KP Singh)
- Fix lock entry creation in TAS fallback in rqspinlock (Kumar
Kartikeya Dwivedi)
- Allow user space to select cpu in lookup/update operations on per-cpu
array and hash maps (Leon Hwang)
- Make kfuncs return trusted pointers by default (Matt Bobrowski)
- Introduce "fsession" support where single BPF program is executed
upon entry and exit from traced kernel function (Menglong Dong)
- Allow bpf_timer and bpf_wq use in all programs types (Mykyta
Yatsenko, Andrii Nakryiko, Kumar Kartikeya Dwivedi, Alexei
Starovoitov)
- Make KF_TRUSTED_ARGS the default for all kfuncs and clean up their
definition across the tree (Puranjay Mohan)
- Allow BPF arena calls from non-sleepable context (Puranjay Mohan)
- Improve register id comparison logic in the verifier and extend
linked registers with negative offsets (Puranjay Mohan)
- In preparation for BPF-OOM introduce kfuncs to access memcg events
(Roman Gushchin)
- Use CFI compatible destructor kfunc type (Sami Tolvanen)
- Add bitwise tracking for BPF_END in the verifier (Tianci Cao)
- Add range tracking for BPF_DIV and BPF_MOD in the verifier (Yazhou
Tang)
- Make BPF selftests work with 64k page size (Yonghong Song)
* tag 'bpf-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (268 commits)
selftests/bpf: Fix outdated test on storage->smap
selftests/bpf: Choose another percpu variable in bpf for btf_dump test
selftests/bpf: Remove test_task_storage_map_stress_lookup
selftests/bpf: Update task_local_storage/task_storage_nodeadlock test
selftests/bpf: Update task_local_storage/recursion test
selftests/bpf: Update sk_storage_omem_uncharge test
bpf: Switch to bpf_selem_unlink_nofail in bpf_local_storage_{map_free, destroy}
bpf: Support lockless unlink when freeing map or local storage
bpf: Prepare for bpf_selem_unlink_nofail()
bpf: Remove unused percpu counter from bpf_local_storage_map_free
bpf: Remove cgroup local storage percpu counter
bpf: Remove task local storage percpu counter
bpf: Change local_storage->lock and b->lock to rqspinlock
bpf: Convert bpf_selem_unlink to failable
bpf: Convert bpf_selem_link_map to failable
bpf: Convert bpf_selem_unlink_map to failable
bpf: Select bpf_local_storage_map_bucket based on bpf_local_storage
selftests/xsk: fix number of Tx frags in invalid packet
selftests/xsk: properly handle batch ending in the middle of a packet
bpf: Prevent reentrance into call_rcu_tasks_trace()
...
|
||
Ziyi Guo
|
9f16d96e12 |
ASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put()
This reverts commit |
||
Mark Brown
|
f14c94d21f |
Linux 6.19
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||
Arnd Bergmann
|
8f7df60fe0 |
ksmbd: fix non-IPv6 build
The newly added procfs code fails to build when CONFIG_IPv6 is disabled:
fs/smb/server/connection.c: In function 'proc_show_clients':
fs/smb/server/connection.c:47:58: error: 'struct ksmbd_conn' has no member named 'inet6_addr'; did you mean 'inet_addr'?
47 | seq_printf(m, "%-20pI6c", &conn->inet6_addr);
| ^~~~~~~~~~
| inet_addr
make[7]: *** [scripts/Makefile.build:279: fs/smb/server/connection.o] Error 1
fs/smb/server/mgmt/user_session.c: In function 'show_proc_sessions':
fs/smb/server/mgmt/user_session.c:215:65: error: 'struct ksmbd_conn' has no member named 'inet6_addr'; did you mean 'inet_addr'?
215 | seq_printf(m, " %-40pI6c", &chan->conn->inet6_addr);
| ^~~~~~~~~~
| inet_addr
Rearrange the condition to allow adding a simple preprocessor conditional.
Fixes:
|
||
Maciej Patelczyk
|
d287dee565 |
drm/gpusvm: Fix unbalanced unlock in drm_gpusvm_scan_mm()
There is a unbalanced lock/unlock to gpusvm notifier lock:
[ 931.045868] =====================================
[ 931.046509] WARNING: bad unlock balance detected!
[ 931.047149] 6.19.0-rc6+xe-**************** #9 Tainted: G U
[ 931.048150] -------------------------------------
[ 931.048790] kworker/u5:0/51 is trying to release lock (&gpusvm->notifier_lock) at:
[ 931.049801] [<ffffffffa090c0d8>] drm_gpusvm_scan_mm+0x188/0x460 [drm_gpusvm_helper]
[ 931.050802] but there are no more locks to release!
[ 931.051463]
The drm_gpusvm_notifier_unlock() sits under err_free label and the
first jump to err_free is just before calling the
drm_gpusvm_notifier_lock() causing unbalanced unlock.
Fixes:
|
||
|
Linus Torvalds
|
a7423e6ea2 |
Modules changes for v7.0-rc1
Module signing:
- Remove SHA-1 support for signing modules. SHA-1 is no longer
considered secure for signatures due to vulnerabilities that can
lead to hash collisions. None of the major distributions use
SHA-1 anymore, and the kernel has defaulted to SHA-512 since
v6.11. Note that loading SHA-1 signed modules is still supported.
- Update scripts/sign-file to use only the OpenSSL CMS API for
signing. As SHA-1 support is gone, we can drop the legacy PKCS#7
API which was limited to SHA-1. This also cleans up support for
legacy OpenSSL versions.
Cleanups and fixes:
- Use system_dfl_wq instead of the per-cpu system_wq following the
ongoing workqueue API refactoring.
- Avoid open-coded kvrealloc() in module decompression logic by
using the standard helper.
- Improve section annotations by replacing the custom __modinit
with __init_or_module and removing several unused __INIT*_OR_MODULE
macros.
- Fix kernel-doc warnings in include/linux/moduleparam.h.
- Ensure set_module_sig_enforced is only declared when module
signing is enabled.
- Fix gendwarfksyms build failures on 32-bit hosts.
MAINTAINERS:
- Update the module subsystem entry to reflect the maintainer
rotation and update the git repository link.
The changes have been soaking in linux-next since -rc2.
Note that like Daniel mentioned in the previous pull request [1], we
rotate maintainership every 6 months, and I will be handling the module
subsystem pull requests for the first half of this year.
Link: https://lore.kernel.org/r/20251203234840.3720-1-da.gomez@kernel.org [1]
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Merge tag 'modules-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
Pull module updates from Sami Tolvanen:
"Module signing:
- Remove SHA-1 support for signing modules.
SHA-1 is no longer considered secure for signatures due to
vulnerabilities that can lead to hash collisions. None of the major
distributions use SHA-1 anymore, and the kernel has defaulted to
SHA-512 since v6.11.
Note that loading SHA-1 signed modules is still supported.
- Update scripts/sign-file to use only the OpenSSL CMS API for
signing.
As SHA-1 support is gone, we can drop the legacy PKCS#7 API which
was limited to SHA-1. This also cleans up support for legacy
OpenSSL versions.
Cleanups and fixes:
- Use system_dfl_wq instead of the per-cpu system_wq following the
ongoing workqueue API refactoring.
- Avoid open-coded kvrealloc() in module decompression logic by using
the standard helper.
- Improve section annotations by replacing the custom __modinit with
__init_or_module and removing several unused __INIT*_OR_MODULE
macros.
- Fix kernel-doc warnings in include/linux/moduleparam.h.
- Ensure set_module_sig_enforced is only declared when module signing
is enabled.
- Fix gendwarfksyms build failures on 32-bit hosts.
MAINTAINERS:
- Update the module subsystem entry to reflect the maintainer
rotation and update the git repository link"
* tag 'modules-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
modules: moduleparam.h: fix kernel-doc comments
module: Only declare set_module_sig_enforced when CONFIG_MODULE_SIG=y
module/decompress: Avoid open-coded kvrealloc()
gendwarfksyms: Fix build on 32-bit hosts
sign-file: Use only the OpenSSL CMS API for signing
module: Remove SHA-1 support for module signing
module: replace use of system_wq with system_dfl_wq
params: Replace __modinit with __init_or_module
module: Remove unused __INIT*_OR_MODULE macros
MAINTAINERS: Update module subsystem maintainers and repository
|
||
|
Linus Torvalds
|
b63c907203 |
keys: Support for ML-DSA module signing
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||
|
Linus Torvalds
|
958f7fb68c |
kmalloc_obj branch for v7.0-rc1
- Introduce kmalloc_obj*() family of type-based allocator APIs - checkpatch: Suggest kmalloc_obj family for sizeof allocations - coccinelle: Add kmalloc_objs conversion script -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCaYosbAAKCRA2KwveOeQk u+pzAPwK+re4aOGay+muhKaA5omh0wFz20a/BxjJVcDfp3qBcwEAhG7YGZ2cITH9 7dFgStecoHtvg8eObMq+W4XVwWdmeQQ= =52iK -----END PGP SIGNATURE----- Merge tag 'kmalloc_obj-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull kmalloc_obj updates from Kees Cook: "Introduce the kmalloc_obj* family of APIs for switching to type-based kmalloc allocations, away from purely size-based allocations. Discussed on lkml, with you, and at Linux Plumbers. It's been in -next for the entire dev cycle. Before the merge window closes, I'd like to send the treewide change (generated from the Coccinelle script included here), which mechanically converts almost 20k callsites from kmalloc* to kmalloc_obj*: 8007 files changed, 19980 insertions(+), 20838 deletions(-) This change needed fixes for mismatched types (since now the return type from allocations is a pointer to the requested type, not "void *"), and I've been fixing these over the last 4 releases. These fixes have mostly been trivial mismatches with const qualifiers or accidentally identical sizes (e.g. same object size: "struct kvec" vs "struct iovec", or differing pointers to pointers), but I did catch one case of too-small allocation. Summary: - Introduce kmalloc_obj*() family of type-based allocator APIs - checkpatch: Suggest kmalloc_obj family for sizeof allocations - coccinelle: Add kmalloc_objs conversion script" * tag 'kmalloc_obj-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: coccinelle: Add kmalloc_objs conversion script slab: Introduce kmalloc_flex() and family compiler_types: Introduce __flex_counter() and family checkpatch: Suggest kmalloc_obj family for sizeof allocations slab: Introduce kmalloc_obj() and family |
||
|
Linus Torvalds
|
85f24b0ace |
hardening updates for v7.0-rc1
- Various missed __counted_by annotations (Thorsten Blum)
- Various missed -Wflex-array-member-not-at-end fixes (Gustavo A. R. Silva)
- Avoid leftover tempfiles for interrupted compile-time FORTIFY tests
(Nicolas Schier)
- Remove non-existant CONFIG_UBSAN_REPORT_FULL from docs (Stefan Wiehler)
- fortify: Use C arithmetic not FIELD_xxx() in FORTIFY_REASON defines
(David Laight)
- Add __counted_by_ptr attribute, tests, and first user (Bill Wendling,
Kees Cook)
- Update MAINTAINERS file to make hardening section not include pstore
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Merge tag 'hardening-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
"Mostly small cleanups and various scattered annotations and flex array
warning fixes that we reviewed by unlanded in other trees. Introduces
new annotation for expanding counted_by to pointer members, now that
compiler behavior between GCC and Clang has been normalized.
- Various missed __counted_by annotations (Thorsten Blum)
- Various missed -Wflex-array-member-not-at-end fixes (Gustavo A. R.
Silva)
- Avoid leftover tempfiles for interrupted compile-time FORTIFY tests
(Nicolas Schier)
- Remove non-existant CONFIG_UBSAN_REPORT_FULL from docs (Stefan
Wiehler)
- fortify: Use C arithmetic not FIELD_xxx() in FORTIFY_REASON defines
(David Laight)
- Add __counted_by_ptr attribute, tests, and first user (Bill
Wendling, Kees Cook)
- Update MAINTAINERS file to make hardening section not include
pstore"
* tag 'hardening-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
MAINTAINERS: pstore: Remove L: entry
nfp: tls: Avoid -Wflex-array-member-not-at-end warnings
carl9170: Avoid -Wflex-array-member-not-at-end warning
coredump: Use __counted_by_ptr for struct core_name::corename
lkdtm/bugs: Add __counted_by_ptr() test PTR_BOUNDS
compiler_types.h: Attributes: Add __counted_by_ptr macro
fortify: Cleanup temp file also on non-successful exit
fortify: Rename temporary file to match ignore pattern
fortify: Use C arithmetic not FIELD_xxx() in FORTIFY_REASON defines
ecryptfs: Annotate struct ecryptfs_message with __counted_by
fs/xattr: Annotate struct simple_xattr with __counted_by
crypto: af_alg - Annotate struct af_alg_iv with __counted_by
Kconfig.ubsan: Remove CONFIG_UBSAN_REPORT_FULL from documentation
drm/nouveau: fifo: Avoid -Wflex-array-member-not-at-end warning
|
||
|
Linus Torvalds
|
bffce9b427 |
pstore updates for v7.0-rc1
- Catch unlikely NULL return from vmap() (Ruipeng Qi) - Handle corner case of past incomplete buffer fills causing heap overflow (Sai Ritvik Tanksalkar) -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCaYonBwAKCRA2KwveOeQk u6vxAP9C+rIsIFZ3Rivgz2vWUmjVGfERG0PpXClXvuJPdIXpiQEA0YoPozkiU/fd FEyBDKU7NaQVfpRrdz1Zd3wWVkJv4AU= =iu74 -----END PGP SIGNATURE----- Merge tag 'pstore-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull pstore updates from Kees Cook: - Catch unlikely NULL return from vmap() (Ruipeng Qi) - Handle corner case of past incomplete buffer fills causing heap overflow (Sai Ritvik Tanksalkar) * tag 'pstore-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore/ram: fix buffer overflow in persistent_ram_save_old() pstore: ram_core: fix incorrect success return when vmap() fails |
||
|
Linus Torvalds
|
eecb03b0f9 |
execve update for v7.0-rc1
- fs/tests: exec: drop duplicate bprm_stack_limits test vectors (Titouan Ameline de Cadeville) -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCaYol/gAKCRA2KwveOeQk u3lvAQDynoCjJrvx2pifVCv0EswBMnUW4EIy2qbXfrK7sx+CuAD8DCMCEooXH0qg RQjXuajV9UnguEN8m9vkdmLXuc+2mAY= =JjEB -----END PGP SIGNATURE----- Merge tag 'execve-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull execve update from Kees Cook: - drop duplicate bprm_stack_limits test vectors (Titouan Ameline de Cadeville) * tag 'execve-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: fs/tests: exec: drop duplicate bprm_stack_limits test vectors |
||
Chintan Patel
|
857e2d886a |
drm/panel: jdi-lt070me05000: Use MIPI DSI multi functions
Convert to the non-deprecated mipi_dsi_*_multi() helpers per the TODO list. This reduces boilerplate error checking while providing proper error accumulation. Use mipi_dsi_msleep() and mipi_dsi_usleep_range() macros for delays. Replace mdelay(10) and mdelay(20) with mipi_dsi_usleep_range() calls using tighter slop (10-11ms and 20-21ms respectively) since these functions aren't run often and don't need large timing windows. In jdi_panel_off(), reset the error context between display_off and enter_sleep_mode to preserve the original behavior of continuing power-down even if display_off fails. This ensures enter_sleep_mode executes before GPIO/regulator control, which is critical for proper power sequencing. Signed-off-by: Chintan Patel <chintanlike@gmail.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://patch.msgid.link/20260203044605.5890-1-chintanlike@gmail.com |
||
Kees Cook
|
1562b1fb7e |
crypto: omap - Allocate OMAP_CRYPTO_FORCE_COPY scatterlists correctly
The existing allocation of scatterlists in omap_crypto_copy_sg_lists()
was allocating an array of scatterlist pointers, not scatterlist objects,
resulting in a 4x too small allocation.
Use sizeof(*new_sg) to get the correct object size.
Fixes:
|
||
|
Linus Torvalds
|
08df88fa14 |
This update includes the following changes:
API:
- Fix race condition in hwrng core by using RCU.
Algorithms:
- Allow authenc(sha224,rfc3686) in fips mode.
- Add test vectors for authenc(hmac(sha384),cbc(aes)).
- Add test vectors for authenc(hmac(sha224),cbc(aes)).
- Add test vectors for authenc(hmac(md5),cbc(des3_ede)).
- Add lz4 support in hisi_zip.
- Only allow clear key use during self-test in s390/{phmac,paes}.
Drivers:
- Set rng quality to 900 in airoha.
- Add gcm(aes) support for AMD/Xilinx Versal device.
- Allow tfms to share device in hisilicon/trng.
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Merge tag 'v7.0-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
"API:
- Fix race condition in hwrng core by using RCU
Algorithms:
- Allow authenc(sha224,rfc3686) in fips mode
- Add test vectors for authenc(hmac(sha384),cbc(aes))
- Add test vectors for authenc(hmac(sha224),cbc(aes))
- Add test vectors for authenc(hmac(md5),cbc(des3_ede))
- Add lz4 support in hisi_zip
- Only allow clear key use during self-test in s390/{phmac,paes}
Drivers:
- Set rng quality to 900 in airoha
- Add gcm(aes) support for AMD/Xilinx Versal device
- Allow tfms to share device in hisilicon/trng"
* tag 'v7.0-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (100 commits)
crypto: img-hash - Use unregister_ahashes in img_{un}register_algs
crypto: testmgr - Add test vectors for authenc(hmac(md5),cbc(des3_ede))
crypto: cesa - Simplify return statement in mv_cesa_dequeue_req_locked
crypto: testmgr - Add test vectors for authenc(hmac(sha224),cbc(aes))
crypto: testmgr - Add test vectors for authenc(hmac(sha384),cbc(aes))
hwrng: core - use RCU and work_struct to fix race condition
crypto: starfive - Fix memory leak in starfive_aes_aead_do_one_req()
crypto: xilinx - Fix inconsistant indentation
crypto: rng - Use unregister_rngs in register_rngs
crypto: atmel - Use unregister_{aeads,ahashes,skciphers}
hwrng: optee - simplify OP-TEE context match
crypto: ccp - Add sysfs attribute for boot integrity
dt-bindings: crypto: atmel,at91sam9g46-sha: add microchip,lan9691-sha
dt-bindings: crypto: atmel,at91sam9g46-aes: add microchip,lan9691-aes
dt-bindings: crypto: qcom,inline-crypto-engine: document the Milos ICE
crypto: caam - fix netdev memory leak in dpaa2_caam_probe
crypto: hisilicon/qm - increase wait time for mailbox
crypto: hisilicon/qm - obtain the mailbox configuration at one time
crypto: hisilicon/qm - remove unnecessary code in qm_mb_write()
crypto: hisilicon/qm - move the barrier before writing to the mailbox register
...
|
||
|
Linus Torvalds
|
13d83ea9d8 |
Crypto library updates for 7.0
- Add support for verifying ML-DSA signatures.
ML-DSA (Module-Lattice-Based Digital Signature Algorithm) is a
recently-standardized post-quantum (quantum-resistant) signature
algorithm. It was known as Dilithium pre-standardization.
The first use case in the kernel will be module signing. But there
are also other users of RSA and ECDSA signatures in the kernel that
might want to upgrade to ML-DSA eventually.
- Improve the AES library:
- Make the AES key expansion and single block encryption and
decryption functions use the architecture-optimized AES code.
Enable these optimizations by default.
- Support preparing an AES key for encryption-only, using about
half as much memory as a bidirectional key.
- Replace the existing two generic implementations of AES with a
single one.
- Simplify how Adiantum message hashing is implemented. Remove the
"nhpoly1305" crypto_shash in favor of direct lib/crypto/ support for
NH hashing, and enable optimizations by default.
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Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library updates from Eric Biggers:
- Add support for verifying ML-DSA signatures.
ML-DSA (Module-Lattice-Based Digital Signature Algorithm) is a
recently-standardized post-quantum (quantum-resistant) signature
algorithm. It was known as Dilithium pre-standardization.
The first use case in the kernel will be module signing. But there
are also other users of RSA and ECDSA signatures in the kernel that
might want to upgrade to ML-DSA eventually.
- Improve the AES library:
- Make the AES key expansion and single block encryption and
decryption functions use the architecture-optimized AES code.
Enable these optimizations by default.
- Support preparing an AES key for encryption-only, using about
half as much memory as a bidirectional key.
- Replace the existing two generic implementations of AES with a
single one.
- Simplify how Adiantum message hashing is implemented. Remove the
"nhpoly1305" crypto_shash in favor of direct lib/crypto/ support for
NH hashing, and enable optimizations by default.
* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (53 commits)
lib/crypto: mldsa: Clarify the documentation for mldsa_verify() slightly
lib/crypto: aes: Drop 'volatile' from aes_sbox and aes_inv_sbox
lib/crypto: aes: Remove old AES en/decryption functions
lib/crypto: aesgcm: Use new AES library API
lib/crypto: aescfb: Use new AES library API
crypto: omap - Use new AES library API
crypto: inside-secure - Use new AES library API
crypto: drbg - Use new AES library API
crypto: crypto4xx - Use new AES library API
crypto: chelsio - Use new AES library API
crypto: ccp - Use new AES library API
crypto: x86/aes-gcm - Use new AES library API
crypto: arm64/ghash - Use new AES library API
crypto: arm/ghash - Use new AES library API
staging: rtl8723bs: core: Use new AES library API
net: phy: mscc: macsec: Use new AES library API
chelsio: Use new AES library API
Bluetooth: SMP: Use new AES library API
crypto: x86/aes - Remove the superseded AES-NI crypto_cipher
lib/crypto: x86/aes: Add AES-NI optimization
...
|
||
|
Linus Torvalds
|
35149653ee |
smb client: Add generated file to gitignore file
The smb client code recently started generating the error mapping table
from a common header, but didn't tell git about it, so then git ends up
thinking maybe it should be committed.
Let's fix that.
Fixes:
|
||
Thomas Bogendoerfer
|
720452a6d0 |
Revert "clk: microchip: core: allow driver to be compiled with COMPILE_TEST"
This reverts commit
|
||
|
Thomas Bogendoerfer
|
df136764e8 |
Revert "clk: microchip: fix typo in reference to a config option"
This reverts commit
|
||
Günther Noack
|
65b691f84d |
landlock: Transpose the layer masks data structure
The layer masks data structure tracks the requested but unfulfilled access rights during an operation's security check. It stores one bit for each combination of access right and layer index. If the bit is set, that access right is not granted (yet) in the given layer and we have to traverse the path further upwards to grant it. Previously, the layer masks were stored as arrays mapping from access right indices to layer_mask_t. The layer_mask_t value then indicates all layers in which the given access right is still (tentatively) denied. This patch introduces struct layer_access_masks instead: This struct contains an array with the access_mask_t of each (tentatively) denied access right in that layer. The hypothesis of this patch is that this simplifies the code enough so that the resulting code will run faster: * We can use bitwise operations in multiple places where we previously looped over bits individually with macros. (Should require less branch speculation and lends itself to better loop unrolling.) * Code is ~75 lines smaller. Other noteworthy changes: * In no_more_access(), call a new helper function may_refer(), which only solves the asymmetric case. Previously, the code interleaved the checks for the two symmetric cases in RENAME_EXCHANGE. It feels that the code is clearer when renames without RENAME_EXCHANGE are more obviously the normal case. Tradeoffs: This change improves performance, at a slight size increase to the layer masks data structure. This fixes the size of the data structure at 32 bytes for all types of access rights. (64, once we introduce a 17th filesystem access right). For filesystem access rights, at the moment, the data structure has the same size as before, but once we introduce the 17th filesystem access right, it will double in size (from 32 to 64 bytes), as access_mask_t grows from 16 to 32 bit [1]. Link: https://lore.kernel.org/all/20260120.haeCh4li9Vae@digikod.net/ [1] Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20260206151154.97915-5-gnoack3000@gmail.com [mic: Cosmetic fixes, moved struct layer_access_masks definition] Signed-off-by: Mickaël Salaün <mic@digikod.net> |
||
|
Günther Noack
|
45f2a2926b |
landlock: Add access_mask_subset() helper
This helper function checks whether an access_mask_t has a subset of the bits enabled than another one. This expresses the intent a bit smoother in the code and does not cost us anything when it gets inlined. Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20260206151154.97915-4-gnoack3000@gmail.com [mic: Improve subject] Signed-off-by: Mickaël Salaün <mic@digikod.net> |
||
|
Günther Noack
|
9adbe89351 |
selftests/landlock: Add filesystem access benchmark
fs_bench benchmarks the performance of Landlock's path walk by exercising it in a scenario that amplifies Landlock's overhead: * Create a large number of nested directories * Enforce a Landlock policy in which a rule is associated with each of these subdirectories * Benchmark openat() applied to the deepest directory, forcing Landlock to walk the entire path. Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20260206151154.97915-3-gnoack3000@gmail.com [mic: Fix missing mode with O_CREAT, improve text consistency, sort includes] Signed-off-by: Mickaël Salaün <mic@digikod.net> |
||
Matt Roper
|
e04c609eed |
drm/xe/xe2_hpg: Fix handling of Wa_14019988906 & Wa_14019877138
The PSS_CHICKEN register has been part of the RCS engine's LRC since it
was first introduced in Xe_LP. That means that any workarounds that
adjust its value (such as Wa_14019988906 and Wa_14019877138) need to be
implemented in the lrc_was[] table so that they become part of the
default LRC from which all subsequent LRCs are copied. Although these
workarounds were implemented correctly on most platforms, they were
incorrectly placed on the engine_was[] table for Xe2_HPG.
Move the workarounds to the proper lrc_was[] table and switch the
'xe_rtp_match_first_render_or_compute' rule to specifically match the
RCS since that's the engine whose LRC manages the register.
Bspec: 65182
Fixes:
|
||
Rong Zhang
|
5a5203a45b |
platform/x86: lenovo-wmi-{capdata,other}: Fix HWMON channel visibility
The LWMI_SUPP_MAY_{GET,SET} macros are fundamentally broken. When I
introduced them, I meant to check LWMI_SUPP_VALID *and* the
corresponding bits for get/set capabilities. However, `supported &
LWMI_SUPP_MAY_{GET,SET}' means *or*, so it accidentally passes the check
when LWMI_SUPP_VALID is set.
Fix them by only including the corresponding get/set bit without
LWMI_SUPP_VALID. Meanwhile, rename them to LWMI_SUPP_{GET,SET} to make
them less confusing.
Fixes:
|
||
Carl Lee
|
9e33c1dba2 |
hwmon: (pmbus/mpq8785) fix VOUT_MODE mismatch during identification
When MPQ8785 reports VOUT_MODE as VID mode, mpq8785_identify()
configures the driver for direct mode. The subsequent
pmbus_identify_common() check then fails due to a mismatch
between the reported mode and the configured mode, causing
device initialization to fail.
Override the reported VOUT_MODE to direct mode to keep the
driver configuration consistent with the reported mode and
allow successful device initialization.
This does not change how voltages are interpreted, but avoids
a false identification failure caused by mismatched mode
handling.
Fixes:
|
||
Guenter Roeck
|
8bde3e395a |
Revert "hwmon: (ibmpex) fix use-after-free in high/low store"
This reverts commit |
||
Paolo Abeni
|
3a23b80dd7 |
Merge branch 'disable-interrupts-and-ensure-dbell-updation'
Vimlesh Kumar says: ==================== disable interrupts and ensure dbell updation Disable per ring interrupts when netdev goes down and ensure dbell BADDR updation for both PFs and VFs by adding wait and check for updated value. Resending based on discussion with reviewer. ==================== Link: https://patch.msgid.link/20260206111510.1045092-1-vimleshk@marvell.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
Vimlesh Kumar
|
484e834d53 |
octeon_ep_vf: ensure dbell BADDR updation
Make sure the OUT DBELL base address reflects the
latest values written to it.
Fix:
Add a wait until the OUT DBELL base address register
is updated with the DMA ring descriptor address,
and modify the setup_oq function to properly
handle failures.
Fixes:
|
||
|
Vimlesh Kumar
|
ce8fe3fc4f |
octeon_ep: ensure dbell BADDR updation
Make sure the OUT DBELL base address reflects the
latest values written to it.
Fix:
Add a wait until the OUT DBELL base address register
is updated with the DMA ring descriptor address,
and modify the setup_oq function to properly
handle failures.
Fixes:
|
||
|
Vimlesh Kumar
|
73e6ffa37c |
octeon_ep: disable per ring interrupts
Disable the MSI-X per ring interrupt for every PF ring when PF
netdev goes down.
Fixes:
|
||
Simon Horman
|
ad1f18e985 |
net/mlx5e: remove declarations of mlx5e_shampo_{fill_umr,dealloc_hd}
These functions were recently removed by commit
|
||
Thomas Fourier
|
36bd7d5dee |
net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()
The priv->rx_buffer and priv->tx_buffer are alloc'd together as
contiguous buffers in uhdlc_init() but freed as two buffers in
uhdlc_memclean().
Change the cleanup to only call dma_free_coherent() once on the whole
buffer.
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Fixes:
|
||
Vladimir Oltean
|
c22ba07c82 |
net: dsa: eliminate local type for tc policers
David Yang is saying that struct flow_action_entry in include/net/flow_offload.h has gained new fields and DSA's struct dsa_mall_policer_tc_entry, derived from that, isn't keeping up. This structure is passed to drivers and they are completely oblivious to the values of fields they don't see. This has happened before, and almost always the solution was to make the DSA layer thinner and use the upstream data structures. Here, the reason why we didn't do that is because struct flow_action_entry :: police is an anonymous structure. That is easily enough fixable, just name those fields "struct flow_action_police" and reference them from DSA. Make the according transformations to the two users (sja1105 and felix): "rate_bytes_per_sec" -> "rate_bytes_ps". Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Co-developed-by: David Yang <mmyangfl@gmail.com> Signed-off-by: David Yang <mmyangfl@gmail.com> Link: https://patch.msgid.link/20260206075427.44733-1-mmyangfl@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
Jiayuan Chen
|
308e7e4d0a |
serial: caif: fix use-after-free in caif_serial ldisc_close()
There is a use-after-free bug in caif_serial where handle_tx() may
access ser->tty after the tty has been freed.
The race condition occurs between ldisc_close() and packet transmission:
CPU 0 (close) CPU 1 (xmit)
------------- ------------
ldisc_close()
tty_kref_put(ser->tty)
[tty may be freed here]
<-- race window -->
caif_xmit()
handle_tx()
tty = ser->tty // dangling ptr
tty->ops->write() // UAF!
schedule_work()
ser_release()
unregister_netdevice()
The root cause is that tty_kref_put() is called in ldisc_close() while
the network device is still active and can receive packets.
Since ser and tty have a 1:1 binding relationship with consistent
lifecycles (ser is allocated in ldisc_open and freed in ser_release
via unregister_netdevice, and each ser binds exactly one tty), we can
safely defer the tty reference release to ser_release() where the
network device is unregistered.
Fix this by moving tty_kref_put() from ldisc_close() to ser_release(),
after unregister_netdevice(). This ensures the tty reference is held
as long as the network device exists, preventing the UAF.
Note: We save ser->tty before unregister_netdevice() because ser is
embedded in netdev's private data and will be freed along with netdev
(needs_free_netdev = true).
How to reproduce: Add mdelay(500) at the beginning of ldisc_close()
to widen the race window, then run the reproducer program [1].
Note: There is a separate deadloop issue in handle_tx() when using
PORT_UNKNOWN serial ports (e.g., /dev/ttyS3 in QEMU without proper
serial backend). This deadloop exists even without this patch,
and is likely caused by inconsistency between uart_write_room() and
uart_write() in serial core. It has been addressed in a separate
patch [2].
KASAN report:
==================================================================
BUG: KASAN: slab-use-after-free in handle_tx+0x5d1/0x620
Read of size 1 at addr ffff8881131e1490 by task caif_uaf_trigge/9929
Call Trace:
<TASK>
dump_stack_lvl+0x10e/0x1f0
print_report+0xd0/0x630
kasan_report+0xe4/0x120
handle_tx+0x5d1/0x620
dev_hard_start_xmit+0x9d/0x6c0
__dev_queue_xmit+0x6e2/0x4410
packet_xmit+0x243/0x360
packet_sendmsg+0x26cf/0x5500
__sys_sendto+0x4a3/0x520
__x64_sys_sendto+0xe0/0x1c0
do_syscall_64+0xc9/0xf80
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f615df2c0d7
Allocated by task 9930:
Freed by task 64:
Last potentially related work creation:
The buggy address belongs to the object at ffff8881131e1000
which belongs to the cache kmalloc-cg-2k of size 2048
The buggy address is located 1168 bytes inside of
freed 2048-byte region [ffff8881131e1000, ffff8881131e1800)
The buggy address belongs to the physical page:
page_owner tracks the page as allocated
page last free pid 9778 tgid 9778 stack trace:
Memory state around the buggy address:
ffff8881131e1380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881131e1400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881131e1480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8881131e1500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881131e1580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
[1]: https://gist.github.com/mrpre/f683f244544f7b11e7fa87df9e6c2eeb
[2]: https://lore.kernel.org/linux-serial/20260204074327.226165-1-jiayuan.chen@linux.dev/T/#u
Reported-by: syzbot+827272712bd6d12c79a4@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000a4a7550611e234f5@google.com/T/
Fixes:
|
||
Felix Gu
|
fef0e649f8 |
drm/logicvc: Fix device node reference leak in logicvc_drm_config_parse()
The logicvc_drm_config_parse() function calls of_get_child_by_name() to
find the "layers" node but fails to release the reference, leading to a
device node reference leak.
Fix this by using the __free(device_node) cleanup attribute to automatic
release the reference when the variable goes out of scope.
Fixes:
|
||
Ethan Nelson-Moore
|
d01103fdcb |
net: ethernet: marvell: skge: remove incorrect conflicting PCI ID
The ID 1186:4302 is matched by both r8169 and skge. The same device ID
should not be in more than one driver, because in that case, which
driver is used is unpredictable. I downloaded the latest drivers for
all hardware revisions of the D-Link DGE-530T from D-Link's website,
and the only drivers which contain this ID are Realtek drivers.
Therefore, remove this device ID from skge.
In the kernel bug report which requested addition of this device ID,
someone created a patch to add the ID to skge. Then, it was pointed
out that this device is an "r8169 in disguise", and a patch was created
to add it to r8169. Somehow, both of these patches got merged. See the
link below.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=38862
Fixes:
|
||
|
Jiayuan Chen
|
81b84de32b |
xfrm: fix ip_rt_bug race in icmp_route_lookup reverse path
icmp_route_lookup() performs multiple route lookups to find a suitable
route for sending ICMP error messages, with special handling for XFRM
(IPsec) policies.
The lookup sequence is:
1. First, lookup output route for ICMP reply (dst = original src)
2. Pass through xfrm_lookup() for policy check
3. If blocked (-EPERM) or dst is not local, enter "reverse path"
4. In reverse path, call xfrm_decode_session_reverse() to get fl4_dec
which reverses the original packet's flow (saddr<->daddr swapped)
5. If fl4_dec.saddr is local (we are the original destination), use
__ip_route_output_key() for output route lookup
6. If fl4_dec.saddr is NOT local (we are a forwarding node), use
ip_route_input() to simulate the reverse packet's input path
7. Finally, pass rt2 through xfrm_lookup() with XFRM_LOOKUP_ICMP flag
The bug occurs in step 6: ip_route_input() is called with fl4_dec.daddr
(original packet's source) as destination. If this address becomes local
between the initial check and ip_route_input() call (e.g., due to
concurrent "ip addr add"), ip_route_input() returns a LOCAL route with
dst.output set to ip_rt_bug.
This route is then used for ICMP output, causing dst_output() to call
ip_rt_bug(), triggering a WARN_ON:
------------[ cut here ]------------
WARNING: net/ipv4/route.c:1275 at ip_rt_bug+0x21/0x30, CPU#1
Call Trace:
<TASK>
ip_push_pending_frames+0x202/0x240
icmp_push_reply+0x30d/0x430
__icmp_send+0x1149/0x24f0
ip_options_compile+0xa2/0xd0
ip_rcv_finish_core+0x829/0x1950
ip_rcv+0x2d7/0x420
__netif_receive_skb_one_core+0x185/0x1f0
netif_receive_skb+0x90/0x450
tun_get_user+0x3413/0x3fb0
tun_chr_write_iter+0xe4/0x220
...
Fix this by checking rt2->rt_type after ip_route_input(). If it's
RTN_LOCAL, the route cannot be used for output, so treat it as an error.
The reproducer requires kernel modification to widen the race window,
making it unsuitable as a selftest. It is available at:
https://gist.github.com/mrpre/eae853b72ac6a750f5d45d64ddac1e81
Reported-by: syzbot+e738404dcd14b620923c@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000b1060905eada8881@google.com/T/
Closes: https://lore.kernel.org/r/20260128090523.356953-1-jiayuan.chen@linux.dev
Fixes:
|
||
Adam Ford
|
1a4b0c9991 |
regulator: mt6363: Fix interrmittent timeout
Sometimes, the mt6363 regulator would fail to initialize and return with
a TIMEOUT error, so add an extra instruction to wake up the bus before
issuing the commands.
Fixes:
|
||
Jack Yu
|
5578da7d95 |
ASoC: rt721-sdca: Fix issue of fail to detect OMTP jack type
Add related HP-JD settings to fix issue of fail to detect OMTP jack type. Signed-off-by: Jack Yu <jack.yu@realtek.com> Link: https://patch.msgid.link/20260210074335.2337830-1-jack.yu@realtek.com Signed-off-by: Mark Brown <broonie@kernel.org> |
||
Gustavo Sousa
|
d2e0540a62 |
drm/xe/nvlp: Bump maximum WOPCM size
On NVL-P, the primary GT's WOPCM gained an extra 8MiB for the Memory URB. As such, we need to bump the maximum size in the driver so that the driver is able to load without erroring out thinking that the WOPCM is too small. FIXME: The wopcm code in xe driver is a bit confusing. For the case where the offsets for GUC WOPCM are already locked, it appears we are using the maximum overall WOPCM size instead of the sizes relative to each type of GT. The function __check_layout() should be checking against the latter. Bspec: 67090 Reviewed-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com> Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-15-636e1ad32688@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> |
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Matt Roper
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d59d94f91f |
drm/i915/nvlp: Hook up display support
Although NVL-S and NVL-P are quite different on the GT side, they use identical Xe3p_LPD display IP and should take all the same codepaths. Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-14-636e1ad32688@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> |
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Dnyaneshwar Bhadane
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b9006dacb8 |
drm/xe/nvlp: Attach MOCS table for nvlp
The MOCS table for NVL-P is same as for Xe2/Xe3 platforms. Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-13-636e1ad32688@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> |
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Shekhar Chauhan
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be07d8f707 |
drm/xe/nvlp: Add NVL-P platform definition
Add platform definition along with device IDs for NVL-P. Here is the list of device descriptor fields and associated Bspec references: .dma_mask_size (Bspec 74198) .has_cached_pt (Bspec 71582) .has_display (Bspec 74196) .has_flat_ccs (Bspec 74110) .has_page_reclaim_hw_assist (Bspec 73451) .max_gt_per_tile (Bspec 74196) .va_bits (Bspec 74198) .vm_max_level (Bspec 59507) v2: - Add list of descriptor fields and Bspec references. (Matt) Signed-off-by: Shekhar Chauhan <shekhar.chauhan@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-12-636e1ad32688@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> |
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Aradhya Bhatia
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377c89bfaa |
drm/xe/xe3p_lpg: Set STLB bank hash mode to 4KB
Since the dominant size of the pages referred in an i-gpu, such as Xe3p_LPG, will be 4KB, the HW default of mix of 64K and 2M for STLB bank hash mode does not make sense. Allow the SW to change it to 4KB Mode, for Xe3p_LPG. v2: - Add Bspec reference. (Matt) Bspec: 78248 Signed-off-by: Aradhya Bhatia <aradhya.bhatia@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-11-636e1ad32688@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> |
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Gustavo Sousa
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1888b3397e |
drm/xe/xe3p_lpg: Update LRC sizes
Like with previous generations, the engine context images for of both RCS and CCS in Xe3p_LPG contain a common layout at the end for the context related to the "Compute Pipeline". The size of the memory area written to such section varies; it depends on the type of preemption has taken place during the execution and type of command streamer instruction that was used on the pipeline. For Xe3p_LPG, the maximum possible size, including NOOPs for cache line alignment, is 4368 dwords, which would be the case of a mid-thread preemption during the execution of a COMPUTE_WALKER_2 instruction. The maximum size has increased in such a way that we need to update xe_gt_lrc_size() to match the new sizing requirement. When we add that to the engine-specific parts, we have: - RCS context image: 6672 dwords = 26688 bytes -> 7 pages - CCS context image: 5024 dwords = 20096 bytes -> 5 pages Bspec: 65182, 55793, 73590 Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-10-636e1ad32688@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> |
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Matt Roper
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60fcdf645c |
drm/xe/xe3p_lpg: Extend 'group ID' mask size
Xe3p_LPG extends the 'group ID' register mask by one bit. Since the new upper bit (12) was unused on previous platforms, we can safely extend the existing mask size without worrying about adding conditional version checks to the register programming. Bspec: 67175 Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com> Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-9-636e1ad32688@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> |
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Matt Roper
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ce0e1a6384 |
drm/xe/xe3p_lpg: Drop unnecessary tuning settings
From Xe3p onward, the desired settings are now the hardware's default values and the driver does not need to program them explicitly. Since 35.xx seems to be the starting point for "Xe3p" version numbers; we'll adjust the bounds of the old programming to stop at 34.99. Even though there's no platform with version 35.00 at the moment, this is simplest in case one does show up in the future. Bspec: 72161, 59928, 59930 Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com> Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-8-636e1ad32688@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> |
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Matt Roper
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e5db97a305 |
drm/xe/xe3p_lpg: Disable reporting of context switch status to GHWSP
By default the hardware reports context switch status into the global hardware status page. The Xe driver doesn't use this information for anything, and as of Xe3p, leaving this setting enabled will prevent other hardware optimizations from being enabled. Disable this reporting as suggested by the tuning guide. Bspec: 72161 Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com> Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-7-636e1ad32688@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> |