linux-kernel - Re: [PATCH v2 1/2] Staging: rts5208: Replace strncpy() with strscpy()

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Date:   Mon, 30 Oct 2023 15:29:00 +0300
From:   Dan Carpenter <dan.carpenter@...aro.org>
To:     Nancy Nyambura <nicymimz@...il.com>
Cc:     nicydaniels@...il.com, outreachy@...ts.linux.dev,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] Staging: rts5208: Replace strncpy() with strscpy()

On Mon, Oct 30, 2023 at 02:59:34PM +0300, Nancy Nyambura wrote:
> warning found by checkpatch.pl script.I replaced the usage of strncpy()
> with strscpy() in the code(line 524) for the buf buffer to improve
> string copying.This is appropriate since strscpy() is used when you want
> to copy a NUL-terminated string and the destination buffer requires
> trailing NUL-padding.
> 
> Signed-off-by: Nancy Nyambura <nicymimz@...il.com>
> ---
> Changes in v2:
>   - Make the commit message more clearer.

Hi Nancy,

Your commit message does not explain why you used strscpy() instead of
strscpy_pad().  I have written a blog that might be helpful.

https://staticthinking.wordpress.com/2023/10/30/strcpy-strncpy-strlcpy-and-strscpy/

regards,
dan carpenter