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| author | Kees Cook <keescook@chromium.org> | 2023-09-22 19:32:10 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2023-10-05 11:30:50 +0200 |
| commit | 9760e50db54f3a858e67703f74f99e65784fd873 (patch) | |
| tree | eb1dd38ca534165824265ffe6daf2bd4355c1554 | |
| parent | drm/msm/dpu: Annotate struct dpu_hw_intr with __counted_by (diff) | |
| download | linux-9760e50db54f3a858e67703f74f99e65784fd873.tar.xz linux-9760e50db54f3a858e67703f74f99e65784fd873.zip | |
drm/nouveau/pm: Annotate struct nvkm_perfdom with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct nvkm_perfdom.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230922173216.3823169-5-keescook@chromium.org
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/pm/priv.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/pm/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/pm/priv.h index 6ae25d3e7f45..c011227f7052 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/pm/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/pm/priv.h @@ -82,7 +82,7 @@ struct nvkm_perfdom { u8 mode; u32 clk; u16 signal_nr; - struct nvkm_perfsig signal[]; + struct nvkm_perfsig signal[] __counted_by(signal_nr); }; struct nvkm_funcdom { |