Merge branch 'next' into for-linus

Prepare input updates for 6.16 merge window.

Merge drm/drm-next into drm-intel-gt-next

Need to pull in a67221b5eb8d ("drm/i915/dp: Return min bpc supported by source instead of 0")
in order to fix build breakage on GCC 9.4.0 (from Ubuntu 20.04

Merge drm/drm-next into drm-intel-gt-next

Need to pull in a67221b5eb8d ("drm/i915/dp: Return min bpc supported by source instead of 0")
in order to fix build breakage on GCC 9.4.0 (from Ubuntu 20.04).

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

show more ...

Merge drm/drm-next into drm-intel-next

Backmerge to sync with v6.15-rc, xe, and specifically async flip changes
in drm-misc.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge tag 'v6.15-rc6' into next

Sync up with mainline to bring in xpad controller changes.

Merge remote-tracking branch 'drm-misc/drm-misc-next' into msm-next

Merge drm-misc-next to get commit Fixes: fec450ca15af ("drm/display:
hdmi: provide central data authority for ACR params").

Signe

Merge remote-tracking branch 'drm-misc/drm-misc-next' into msm-next

Merge drm-misc-next to get commit Fixes: fec450ca15af ("drm/display:
hdmi: provide central data authority for ACR params").

Signed-off-by: Rob Clark <robdclark@chromium.org>

show more ...

Merge drm/drm-next into drm-xe-next

Backmerge to bring in linux 6.15-rc.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

Merge tag 'v6.15-rc1' into x86/cpu, to refresh the branch with upstream changes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.15-rc1' into x86/asm, to refresh the branch

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge drm/drm-fixes into drm-misc-fixes

Backmerging to get updates from v6.15-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Backmerging to get v6.15-rc1 into drm-misc-next. Also fixes a
build issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.

Signed-off-by: Thomas Zimmermann <tzimmerm

Merge drm/drm-next into drm-misc-next

Backmerging to get v6.15-rc1 into drm-misc-next. Also fixes a
build issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

show more ...

Merge tag 'bpf-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf updates from Alexei Starovoitov:
"For this merge window we're splitting BPF pull request into three

Merge tag 'bpf-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf updates from Alexei Starovoitov:
"For this merge window we're splitting BPF pull request into three for
higher visibility: main changes, res_spin_lock, try_alloc_pages.

These are the main BPF changes:

- Add DFA-based live registers analysis to improve verification of
programs with loops (Eduard Zingerman)

- Introduce load_acquire and store_release BPF instructions and add
x86, arm64 JIT support (Peilin Ye)

- Fix loop detection logic in the verifier (Eduard Zingerman)

- Drop unnecesary lock in bpf_map_inc_not_zero() (Eric Dumazet)

- Add kfunc for populating cpumask bits (Emil Tsalapatis)

- Convert various shell based tests to selftests/bpf/test_progs
format (Bastien Curutchet)

- Allow passing referenced kptrs into struct_ops callbacks (Amery
Hung)

- Add a flag to LSM bpf hook to facilitate bpf program signing
(Blaise Boscaccy)

- Track arena arguments in kfuncs (Ihor Solodrai)

- Add copy_remote_vm_str() helper for reading strings from remote VM
and bpf_copy_from_user_task_str() kfunc (Jordan Rome)

- Add support for timed may_goto instruction (Kumar Kartikeya
Dwivedi)

- Allow bpf_get_netns_cookie() int cgroup_skb programs (Mahe Tardy)

- Reduce bpf_cgrp_storage_busy false positives when accessing cgroup
local storage (Martin KaFai Lau)

- Introduce bpf_dynptr_copy() kfunc (Mykyta Yatsenko)

- Allow retrieving BTF data with BTF token (Mykyta Yatsenko)

- Add BPF kfuncs to set and get xattrs with 'security.bpf.' prefix
(Song Liu)

- Reject attaching programs to noreturn functions (Yafang Shao)

- Introduce pre-order traversal of cgroup bpf programs (Yonghong
Song)"

* tag 'bpf-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (186 commits)
selftests/bpf: Add selftests for load-acquire/store-release when register number is invalid
bpf: Fix out-of-bounds read in check_atomic_load/store()
libbpf: Add namespace for errstr making it libbpf_errstr
bpf: Add struct_ops context information to struct bpf_prog_aux
selftests/bpf: Sanitize pointer prior fclose()
selftests/bpf: Migrate test_xdp_vlan.sh into test_progs
selftests/bpf: test_xdp_vlan: Rename BPF sections
bpf: clarify a misleading verifier error message
selftests/bpf: Add selftest for attaching fexit to __noreturn functions
bpf: Reject attaching fexit/fmod_ret to __noreturn functions
bpf: Only fails the busy counter check in bpf_cgrp_storage_get if it creates storage
bpf: Make perf_event_read_output accessible in all program types.
bpftool: Using the right format specifiers
bpftool: Add -Wformat-signedness flag to detect format errors
selftests/bpf: Test freplace from user namespace
libbpf: Pass BPF token from find_prog_btf_id to BPF_BTF_GET_FD_BY_ID
bpf: Return prog btf_id without capable check
bpf: BPF token support for BPF_BTF_GET_FD_BY_ID
bpf, x86: Fix objtool warning for timed may_goto
bpf: Check map->record at the beginning of check_and_free_fields()
...

show more ...

Merge branch 'extend-struct_ops-support-for-operators'

Amery Hung says:

====================
This patchset supports struct_ops operators that acquire kptrs through
arguments and operators that retu

Merge branch 'extend-struct_ops-support-for-operators'

Amery Hung says:

====================
This patchset supports struct_ops operators that acquire kptrs through
arguments and operators that return a kptr. A coming new struct_ops use
case, bpf qdisc [0], has two operators that are not yet supported by
current struct_ops infrastructure. Qdisc_ops::enqueue requires getting
referenced skb kptr from the argument; Qdisc_ops::dequeue needs to return
a referenced skb kptr. This patchset will allow bpf qdisc and other
potential struct_ops implementers to do so.

For struct_ops implementers:

- To get a kptr from an argument, a struct_ops implementer needs to
annotate the argument name in the stub function with "__ref" suffix.

- The kptr return will automatically work as we now allow operators that
return a struct pointer.

- The verifier allows returning a null pointer. More control can be
added later if there is a future struct_ops implementer only expecting
valid pointers.

For struct_ops users:

- The referenced kptr acquired through the argument needs to be released
or xchged into maps just like ones acquired via kfuncs.

- To return a referenced kptr in struct_ops,
1) The type of the pointer must matches the return type
2) The pointer must comes from the kernel (not locally allocated), and
3) The pointer must be in its unmodified form

[0] https://lore.kernel.org/bpf/20250210174336.2024258-1-ameryhung@gmail.com/
---
v2
- Replace kcalloc+memcpy with kmemdup_array in
bpf_prog_ctx_arg_info_init()
- Remove unnecessary checks when kfree-ing ctx_arg_info
- Remove conditional assignment of ref_obj_id in btf_ctx_access()

v1
- Link: https://lore.kernel.org/bpf/20250214164520.1001211-1-ameryhung@gmail.com/
- Fix missing kfree for ctx_arg_info
====================

Link: https://patch.msgid.link/20250217190640.1748177-1-ameryhung@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...

selftests/bpf: Test referenced kptr arguments of struct_ops programs

Test referenced kptr acquired through struct_ops argument tagged with
"__ref". The success case checks whether 1) a reference to

selftests/bpf: Test referenced kptr arguments of struct_ops programs

Test referenced kptr acquired through struct_ops argument tagged with
"__ref". The success case checks whether 1) a reference to the correct
type is acquired, and 2) the referenced kptr argument can be accessed in
multiple paths as long as it hasn't been released. In the fail cases,
we first confirm that a referenced kptr acquried through a struct_ops
argument is not allowed to be leaked. Then, we make sure this new
referenced kptr acquiring mechanism does not accidentally allow referenced
kptrs to flow into global subprograms through their arguments.

Signed-off-by: Amery Hung <amery.hung@bytedance.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20250217190640.1748177-4-ameryhung@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...