linux-kernel - Re: [PATCH v2] staging: qlge: Replace strncpy with strscpy

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Message-ID: <20231009172245.wholw3yhu46l6xiq@google.com>
Date:   Mon, 9 Oct 2023 17:22:45 +0000
From:   Justin Stitt <justinstitt@...gle.com>
To:     Ricardo Lopes <ricardoapl.dev@...il.com>
Cc:     manishc@...vell.com, GR-Linux-NIC-Dev@...vell.com,
        coiby.xu@...il.com, gregkh@...uxfoundation.org,
        netdev@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] staging: qlge: Replace strncpy with strscpy

On Fri, Oct 06, 2023 at 05:12:24PM +0100, Ricardo Lopes wrote:
> Reported by checkpatch:
>
> WARNING: Prefer strscpy, strscpy_pad, or __nonstring over strncpy
>
> Signed-off-by: Ricardo Lopes <ricardoapl.dev@...il.com>

Nice patch!

It looks good to me and helps towards [1].

Reviewed-by: Justin Stitt <justinstitt@...gle.com>

> ---
> v2: Redo changelog text
>
>  drivers/staging/qlge/qlge_dbg.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/staging/qlge/qlge_dbg.c b/drivers/staging/qlge/qlge_dbg.c
> index c7e865f51..5f08a8492 100644
> --- a/drivers/staging/qlge/qlge_dbg.c
> +++ b/drivers/staging/qlge/qlge_dbg.c
> @@ -696,7 +696,7 @@ static void qlge_build_coredump_seg_header(struct mpi_coredump_segment_header *s
>  	seg_hdr->cookie = MPI_COREDUMP_COOKIE;
>  	seg_hdr->seg_num = seg_number;
>  	seg_hdr->seg_size = seg_size;
> -	strncpy(seg_hdr->description, desc, (sizeof(seg_hdr->description)) - 1);
> +	strscpy(seg_hdr->description, desc, sizeof(seg_hdr->description));
>  }
>
>  /*
> @@ -737,7 +737,7 @@ int qlge_core_dump(struct qlge_adapter *qdev, struct qlge_mpi_coredump *mpi_core
>  		sizeof(struct mpi_coredump_global_header);
>  	mpi_coredump->mpi_global_header.image_size =
>  		sizeof(struct qlge_mpi_coredump);
> -	strncpy(mpi_coredump->mpi_global_header.id_string, "MPI Coredump",
> +	strscpy(mpi_coredump->mpi_global_header.id_string, "MPI Coredump",
>  		sizeof(mpi_coredump->mpi_global_header.id_string));
>
>  	/* Get generic NIC reg dump */
> @@ -1225,7 +1225,7 @@ static void qlge_gen_reg_dump(struct qlge_adapter *qdev,
>  		sizeof(struct mpi_coredump_global_header);
>  	mpi_coredump->mpi_global_header.image_size =
>  		sizeof(struct qlge_reg_dump);
> -	strncpy(mpi_coredump->mpi_global_header.id_string, "MPI Coredump",
> +	strscpy(mpi_coredump->mpi_global_header.id_string, "MPI Coredump",
>  		sizeof(mpi_coredump->mpi_global_header.id_string));
>
>  	/* segment 16 */
> --
> 2.41.0
>

[1]: https://github.com/KSPP/linux/issues/90