mlxsw: spectrum_span: Annotate struct mlxsw_sp_span with __counted_by

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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 mlxsw_sp_span.

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

Cc: Petr Machata <petrm@nvidia.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20230929180746.3005922-5-keescook@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Kees Cook 2023-09-29 11:07:44 -07:00 • committed by Jakub Kicinski

parent 4d3a42ec5c

commit 18cee9da32

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c

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