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authorXiongfeng Wang <xiongfeng.wang@linaro.org>2018-01-08 14:43:00 +0300
committerDavid S. Miller <davem@davemloft.net>2018-01-09 19:52:18 +0300
commit3dc2fa47549aca71773afdd12a78d31802bb22b4 (patch)
treeedb6546ee6dd724c23e5b4f257e4769cfbc6afe4 /net/caif/caif_dev.c
parentb8fd0823e0770c2d5fdbd865bccf0d5e058e5287 (diff)
downloadlinux-3dc2fa47549aca71773afdd12a78d31802bb22b4.tar.xz
net: caif: use strlcpy() instead of strncpy()
gcc-8 reports net/caif/caif_dev.c: In function 'caif_enroll_dev': ./include/linux/string.h:245:9: warning: '__builtin_strncpy' output may be truncated copying 15 bytes from a string of length 15 [-Wstringop-truncation] net/caif/cfctrl.c: In function 'cfctrl_linkup_request': ./include/linux/string.h:245:9: warning: '__builtin_strncpy' output may be truncated copying 15 bytes from a string of length 15 [-Wstringop-truncation] net/caif/cfcnfg.c: In function 'caif_connect_client': ./include/linux/string.h:245:9: warning: '__builtin_strncpy' output may be truncated copying 15 bytes from a string of length 15 [-Wstringop-truncation] The compiler require that the input param 'len' of strncpy() should be greater than the length of the src string, so that '\0' is copied as well. We can just use strlcpy() to avoid this warning. Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/caif/caif_dev.c')
-rw-r--r--net/caif/caif_dev.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index 2d38b6e34203..e0adcd123f48 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -334,9 +334,8 @@ void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev,
mutex_lock(&caifdevs->lock);
list_add_rcu(&caifd->list, &caifdevs->list);
- strncpy(caifd->layer.name, dev->name,
- sizeof(caifd->layer.name) - 1);
- caifd->layer.name[sizeof(caifd->layer.name) - 1] = 0;
+ strlcpy(caifd->layer.name, dev->name,
+ sizeof(caifd->layer.name));
caifd->layer.transmit = transmit;
cfcnfg_add_phy_layer(cfg,
dev,