diff options
| author | Justin Stitt <justinstitt@google.com> | 2023-10-09 18:24:20 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-11 17:26:04 -0700 |
| commit | ed9417206de7d306d6f79340fbe4849d3bdfae4e (patch) | |
| tree | 89c4c295a592a55efe1ab741ee158e3f31fe380d /drivers/net/dsa/lantiq_gswip.c | |
| parent | ac49b992578d366bde19cfb9316d07784e255d2c (diff) | |
net: dsa: lantiq_gswip: replace deprecated strncpy with ethtool_sprintf
`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 more robust and easier to
understand interface.
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: Kees Cook <keescook@chromium.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20231009-strncpy-drivers-net-dsa-lantiq_gswip-c-v1-1-d55a986a14cc@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/dsa/lantiq_gswip.c')
| -rw-r--r-- | drivers/net/dsa/lantiq_gswip.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c index 25abf2caf5fb..1a2d5797bf98 100644 --- a/drivers/net/dsa/lantiq_gswip.c +++ b/drivers/net/dsa/lantiq_gswip.c @@ -1759,8 +1759,7 @@ static void gswip_get_strings(struct dsa_switch *ds, int port, u32 stringset, return; for (i = 0; i < ARRAY_SIZE(gswip_rmon_cnt); i++) - strncpy(data + i * ETH_GSTRING_LEN, gswip_rmon_cnt[i].name, - ETH_GSTRING_LEN); + ethtool_sprintf(&data, "%s", gswip_rmon_cnt[i].name); } static u32 gswip_bcm_ram_entry_read(struct gswip_priv *priv, u32 table, |