diff options
| author | Kees Cook <[email protected]> | 2023-09-22 10:32:10 -0700 |
|---|---|---|
| committer | Christian König <[email protected]> | 2023-10-05 11:30:50 +0200 |
| commit | 9760e50db54f3a858e67703f74f99e65784fd873 (patch) | |
| tree | eb1dd38ca534165824265ffe6daf2bd4355c1554 | |
| parent | 8f5d3daad715ea55d1cfdaa3e180d3820237cad5 (diff) | |
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 <[email protected]>
Cc: Karol Herbst <[email protected]>
Cc: Lyude Paul <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Kees Cook <[email protected]>
Reviewed-by: Lyude Paul <[email protected]>
Reviewed-by: Gustavo A. R. Silva <[email protected]>
Signed-off-by: Christian König <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
| -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 { |