diff options
| author | Kees Cook <keescook@chromium.org> | 2023-10-03 16:18:43 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-05 18:32:10 -0700 |
| commit | 4514aa9f56fd7acf9e4f247bd38c0642e55109f7 (patch) | |
| tree | 7f4a9236e00067f9fe4ecfd0a7f3e119bdaae6f6 /drivers | |
| parent | 0fef0907d6faaab280d052e385d0da876182a1d2 (diff) | |
nfp: Annotate struct nfp_reprs 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 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 nfp_reprs.
Cc: Simon Horman <simon.horman@corigine.com>
Cc: oss-drivers@corigine.com
Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1]
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Louis Peens <louis.peens@corigine.com>
Link: https://lore.kernel.org/r/20231003231843.work.811-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_repr.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h index 48a74accbbd3..77bf4198dbde 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h @@ -18,7 +18,7 @@ struct nfp_port; */ struct nfp_reprs { unsigned int num_reprs; - struct net_device __rcu *reprs[]; + struct net_device __rcu *reprs[] __counted_by(num_reprs); }; /** |