Re: [PATCH] net/mlx5: Annotate struct mlx5_fc_bulk with __counted_by

From: Leon Romanovsky
Date: Wed Oct 04 2023 - 14:45:01 EST


On Tue, Oct 03, 2023 at 04:21:05PM -0700, Justin Stitt wrote:
> On Tue, Oct 3, 2023 at 4:17 PM Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> >
> > 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 mlx5_fc_bulk.
> >
> > Cc: Saeed Mahameed <saeedm@xxxxxxxxxx>
> > Cc: Leon Romanovsky <leon@xxxxxxxxxx>
> > Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> > Cc: Eric Dumazet <edumazet@xxxxxxxxxx>
> > Cc: Jakub Kicinski <kuba@xxxxxxxxxx>
> > Cc: Paolo Abeni <pabeni@xxxxxxxxxx>
> > Cc: netdev@xxxxxxxxxxxxxxx
> > Cc: linux-rdma@xxxxxxxxxxxxxxx
> > Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1]
> > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> > ---
> > drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >

Thanks,
Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>