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strncpy() is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. ethtool_sprintf() is designed specifically for get_strings() usage. Let's replace strncpy in favor of this dedicated helper function. 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 Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20231012-strncpy-drivers-net-phy-smsc-c-v1-1-00528f7524b3@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>