linux/drivers/gpu
Nathan Chancellor a860f266a0
drm/selftest: plane_helper: Put test structures in static storage
Clang warns on certain 32-bit architectures:

  drivers/gpu/drm/selftests/test-drm_plane_helper.c:76:5: warning: stack frame size (1064) exceeds limit (1024) in 'igt_check_plane_state' [-Wframe-larger-than]
  int igt_check_plane_state(void *ignored)
      ^
  1 warning generated.

The structures in igt_check_plane_state() total 1008 bytes, so any small
amount of inlining will cause the stack frame to exceed the 32-bit limit
of 1024, triggering the warning.

Move these structures to static storage, which dramatically reduces the
amount of stack space in igt_check_plane_state(). There is no testing
impact, as igt_check_plane_state() is only called once in the driver.

Fixes: 943e6a8bee ("mock a drm_plane in igt_check_plane_state to make the test more robust")
Link: https://github.com/ClangBuiltLinux/linux/issues/1600
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220302235909.784935-1-nathan@kernel.org
2022-03-21 11:05:05 +01:00
..
drm drm/selftest: plane_helper: Put test structures in static storage 2022-03-21 11:05:05 +01:00
host1x gpu: host1x: Fix a memory leak in 'host1x_remove()' 2022-03-01 11:13:09 +01:00
ipu-v3
trace
vga
Makefile