Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-24 21:21:41 +00:00
Code Issues Packages Projects Releases Wiki Activity

RDMA: Annotate struct rdma_hw_stats with __counted_by

Browse Source 
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 rdma_hw_stats.

[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci

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/20230929180431.3005464-1-keescook@chromium.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Kees Cook 2023-09-29 11:04:24 -07:00 committed by Leon Romanovsky
parent c9813b0b99
commit 4755dc6f29
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/rdma/ib_verbs.h
View File

@ -608,7 +608,7 @@ struct rdma_hw_stats {
const struct rdma_stat_desc *descs;
unsigned long *is_disabled;
int num_counters;
u64 value[];
u64 value[] __counted_by(num_counters);
};
#define RDMA_HW_STATS_DEFAULT_LIFESPAN 10