[PATCH 00/10] treewide: switch to __nonnull_args() macro

[Dmitry Ilvokhin <d@ilvokhin.com>]

Commit 22302af28d3f ("cleanup: Annotate guard constructors with
nonnull") added the __nonnull_args() macro to wrap the raw compiler
attribute, keeping the attribute's quirks in one place rather than
open-coded at every call site.

This series replaces the remaining open-coded __attribute__((nonnull))
users with __nonnull_args() to standardize nonnull attribute usage
across the tree.

Each patch can be applied separately by the respective maintainers. The
only dependency is kernel-doc: the string and lib/list_sort patches need
patch 1 ("docs: xforms_lists: support __nonnull_args()") in the same
release, otherwise strends() and list_sort() drop out of the generated
documentation.

Latest Sparse release could not properly parse __nonnull_args() without
arguments. Fix was proposed [1] and merged, but until updated version of
Sparse will reach wide masses it might trip on __nonnull_args() without
arguments.

There are few more instances of __attribute__((nonnull)) usages left in
the tools subdirectory, they are perf related copied files and can
(should?) be updated separately after this patchset lands.

Build-tested allmodconfig with GCC 11.5.0 and clang 22.1.8.

[1]: https://lore.kernel.org/all/20261019175633.415493-19-bvanassche@acm.org/

Dmitry Ilvokhin (10):
  docs: xforms_lists: support __nonnull_args()
  string: Switch to __nonnull_args() macro
  lib/list_sort: Switch to __nonnull_args() macro
  xarray: switch to __nonnull_args() macro
  drm/i915: switch to __nonnull_args() macro
  drm/amdgpu: switch to __nonnull_args() macro
  drm/gem: Switch to __nonnull_args() macro
  leds: pwm: Switch to __nonnull_args() macro
  soc: aspeed: lpc-snoop: Switch to __nonnull_args() macro
  checkpatch: suggest nonnull attribute conversion

 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c    | 2 +-
 drivers/gpu/drm/i915/gem/i915_gem_object.h | 4 ++--
 drivers/gpu/drm/i915/i915_request.h        | 4 ++--
 drivers/leds/leds-pwm.c                    | 2 +-
 drivers/soc/aspeed/aspeed-lpc-snoop.c      | 4 ++--
 include/drm/drm_gem.h                      | 2 +-
 include/linux/list_sort.h                  | 4 ++--
 include/linux/string.h                     | 2 +-
 include/linux/xarray.h                     | 4 ++--
 lib/list_sort.c                            | 6 +++---
 scripts/checkpatch.pl                      | 3 +++
 tools/include/linux/compiler.h             | 4 ++++
 tools/lib/python/kdoc/xforms_lists.py      | 1 +
 13 files changed, 25 insertions(+), 17 deletions(-)


base-commit: 6b4b543fa18757297ac756a6fe6e64f506b7844a
-- 
2.53.0-Meta