With W=1 the following error is reported:
In function ‘strncpy’,
inlined from ‘hdlcdrv_ioctl’ at drivers/net/hamradio/hdlcdrv.c:600:4:
./include/linux/string.h:297:30: warning: ‘__builtin_strncpy’ specified bound
32 equals destination size [-Wstringop-truncation]
297 | #define __underlying_strncpy __builtin_strncpy
| ^
./include/linux/string.h:307:9: note: in expansion of macro
‘__underlying_strncpy’
307 | return __underlying_strncpy(p, q, size);
Replace strncpy with strlcpy to guarantee the string is terminated.
Signed-off-by: Andrew Lunn <and...@lunn.ch>
---
drivers/net/hamradio/hdlcdrv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/hamradio/hdlcdrv.c b/drivers/net/hamradio/hdlcdrv.c
index e7413a643929..9e0058154ac3 100644
--- a/drivers/net/hamradio/hdlcdrv.c
+++ b/drivers/net/hamradio/hdlcdrv.c
@@ -597,7 +597,7 @@ static int hdlcdrv_ioctl(struct net_device *dev, struct
ifreq *ifr, int cmd)
case HDLCDRVCTL_DRIVERNAME:
if (s->ops && s->ops->drvname) {
- strncpy(bi.data.drivername, s->ops->drvname,
+ strlcpy(bi.data.drivername, s->ops->drvname,
sizeof(bi.data.drivername));
break;
}
--
2.28.0
