RDMA/siw: Annotate struct siw_pbl 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 siw_pbl. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Bernard Metzler <bmt@zurich.ibm.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Leon Romanovsky <leon@kernel.org> Cc: linux-rdma@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230929180431.3005464-4-keescook@chromium.org Signed-off-by: Leon Romanovsky <leon@kernel.org>
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@ -137,7 +137,7 @@ struct siw_pble {
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struct siw_pbl {
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unsigned int num_buf;
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unsigned int max_buf;
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struct siw_pble pbe[];
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struct siw_pble pbe[] __counted_by(max_buf);
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};
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/*
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