Re: [PATCH v2] hwmon: (ibmpowernv) refactor deprecated strncpy

[Michael Ellerman]

Justin Stitt <justinstitt@xxxxxxxxxx> writes:
> `strncpy` is deprecated for use on NUL-terminated destination strings [1].
>
> A suitable replacement is `memcpy` as we've already precisely calculated
> the number of bytes to copy while `buf` has been explicitly
> zero-initialized:
> | 	char buf[8] = { 0 };
>
> 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>
> ---
> Changes in v2:
> - prefer memcpy to strscpy (thanks Kees)
> - Link to v1: https://lore.kernel.org/r/20230914-strncpy-drivers-hwmon-ibmpowernv-c-v1-1-ba6b7f42c98c@xxxxxxxxxx
> ---
>  drivers/hwmon/ibmpowernv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Tested-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc)

cheers