Re: [PATCH] crypto: cavium/nitrox - refactor deprecated strncpy

[Herbert Xu]

On Wed, Sep 13, 2023 at 12:32:31AM +0000, Justin Stitt wrote:
> `strncpy` is deprecated for use on NUL-terminated destination strings [1].
> 
> We know `hw.partname` is supposed to be NUL-terminated by its later use with seq_printf:
> | nitrox_debugfs.c +25
> |      seq_printf(s, "  Part Name: %s\n", ndev->hw.partname);
> 
> Let's prefer a more robust and less ambiguous string interface.
> 
> A suitable replacement is `strscpy` [2] due to the fact that it guarantees
> NUL-termination on the destination buffer.
> 
> Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
> Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
> Link: https://github.com/KSPP/linux/issues/90
> Cc: linux-hardening@xxxxxxxxxxxxxxx
> Signed-off-by: Justin Stitt <justinstitt@xxxxxxxxxx>
> ---
> Note: build-tested only.
> ---
>  drivers/crypto/cavium/nitrox/nitrox_hal.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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