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Message-ID: <IA1PR11MB7317A294F4AAFFBE7263EA6CE9E92@IA1PR11MB7317.namprd11.prod.outlook.com>
Date: Mon, 20 May 2024 15:02:01 +0000
From: "Saleem, Shiraz" <shiraz.saleem@...el.com>
To: Christophe JAILLET <christophe.jaillet@...adoo.fr>, "Ismail, Mustafa"
<mustafa.ismail@...el.com>, Jason Gunthorpe <jgg@...pe.ca>, Leon Romanovsky
<leon@...nel.org>, Kees Cook <keescook@...omium.org>, "Gustavo A. R. Silva"
<gustavoars@...nel.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
"linux-hardening@...r.kernel.org" <linux-hardening@...r.kernel.org>
Subject: RE: [PATCH] RDMA/irdma: Annotate flexible array with __counted_by()
in struct irdma_qvlist_info
> Subject: [PATCH] RDMA/irdma: Annotate flexible array with __counted_by() in
> struct irdma_qvlist_info
>
> 'num_vectors' is used to count the number of elements in the 'qv_info'
> flexible array in "struct irdma_qvlist_info".
>
> So annotate it with __counted_by() to make it explicit and enable some
> additional checks.
>
> This allocation is done in irdma_save_msix_info().
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
> drivers/infiniband/hw/irdma/main.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/infiniband/hw/irdma/main.h
> b/drivers/infiniband/hw/irdma/main.h
> index b65bc2ea542f..9f0ed6e84471 100644
> --- a/drivers/infiniband/hw/irdma/main.h
> +++ b/drivers/infiniband/hw/irdma/main.h
> @@ -239,7 +239,7 @@ struct irdma_qv_info {
>
> struct irdma_qvlist_info {
> u32 num_vectors;
> - struct irdma_qv_info qv_info[];
> + struct irdma_qv_info qv_info[] __counted_by(num_vectors);
> };
Acked-by: Shiraz Saleem <shiraz.saleem@...el.com>
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