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author | Kees Cook <keescook@chromium.org> | 2023-08-18 02:58:40 +0300 |
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committer | Vinod Koul <vkoul@kernel.org> | 2023-09-28 14:12:02 +0300 |
commit | f1bc0d01cb349da43d55548b57c915ef8fe024c7 (patch) | |
tree | bf808fef86f6fcdfcd688cb2f718d7427c44888e /include/asm-generic/current.h | |
parent | 81cd3cb3b3dd37df1fc45c5b6443a07bc2a7fee4 (diff) | |
download | linux-f1bc0d01cb349da43d55548b57c915ef8fe024c7.tar.xz |
dmaengine: axi-dmac: Annotate struct axi_dmac_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 axi_dmac_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: Lars-Peter Clausen <lars@metafoo.de>
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/20230817235859.49846-3-keescook@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/asm-generic/current.h')
0 files changed, 0 insertions, 0 deletions