diff options
| author | Kees Cook <keescook@chromium.org> | 2023-08-17 16:58:43 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-09-28 16:42:14 +0530 |
| commit | fd1cb31a037bf8894a710392c2354281c5276d09 (patch) | |
| tree | 1721bd39f4569581a2279d5d74c2a9405c17dfe7 /drivers/dma/qcom/bam_dma.c | |
| parent | 7d4b82185521538eab8b0532b9bd7b8c8ca3e63b (diff) | |
| download | linux-stable-fd1cb31a037bf8894a710392c2354281c5276d09.tar.gz linux-stable-fd1cb31a037bf8894a710392c2354281c5276d09.tar.bz2 linux-stable-fd1cb31a037bf8894a710392c2354281c5276d09.zip | |
dmaengine: moxart-dma: Annotate struct moxart_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 moxart_desc.
Additionally, since the element count member must be set before accessing
the annotated flexible array member, move its initialization earlier.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Vinod Koul <vkoul@kernel.org>
Cc: dmaengine@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230817235859.49846-6-keescook@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/qcom/bam_dma.c')
0 files changed, 0 insertions, 0 deletions