diff options
| author | Kees Cook <[email protected]> | 2023-08-17 16:58:52 -0700 |
|---|---|---|
| committer | Vinod Koul <[email protected]> | 2023-09-28 16:42:15 +0530 |
| commit | 32b5e2d7cd14c80de1fa1cdffcc6ec211b615d82 (patch) | |
| tree | 73d258b894d7834192a3aa5ac8f9dd1d789c3098 | |
| parent | 7ba0035dc02ce0c877004dc4052c6d5f873539db (diff) | |
dmaengine: tegra: Annotate struct tegra_dma_desc 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 tegra_dma_desc.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Vinod Koul <[email protected]>
Cc: Laxman Dewangan <[email protected]>
Cc: Jon Hunter <[email protected]>
Cc: Thierry Reding <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Kees Cook <[email protected]>
Reviewed-by: "Gustavo A. R. Silva" <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
| -rw-r--r-- | drivers/dma/tegra186-gpc-dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/tegra186-gpc-dma.c b/drivers/dma/tegra186-gpc-dma.c index 868c18cc72b1..fa4d4142a68a 100644 --- a/drivers/dma/tegra186-gpc-dma.c +++ b/drivers/dma/tegra186-gpc-dma.c @@ -221,7 +221,7 @@ struct tegra_dma_desc { unsigned int sg_count; struct virt_dma_desc vd; struct tegra_dma_channel *tdc; - struct tegra_dma_sg_req sg_req[]; + struct tegra_dma_sg_req sg_req[] __counted_by(sg_count); }; /* |