diff mbox series

IB/cma: use strlcpy() instead of strncpy()

Message ID 1515743765-116090-1-git-send-email-wangxiongfeng2@huawei.com
State New
Headers show
Series IB/cma: use strlcpy() instead of strncpy() | expand

Commit Message

Xiongfeng Wang Jan. 12, 2018, 7:56 a.m. UTC
From: Xiongfeng Wang <xiongfeng.wang@linaro.org>


gcc-8 reports

drivers/infiniband/core/cma_configfs.c: In function 'make_cma_dev':
./include/linux/string.h:245:9: warning: '__builtin_strncpy' specified
bound 64 equals destination size [-Wstringop-truncation]

We need to use strlcpy() to make sure the string is nul-terminated.

Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>

---
 drivers/infiniband/core/cma_configfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
1.8.3.1

Comments

Leon Romanovsky Jan. 12, 2018, 11:43 a.m. UTC | #1
On Fri, Jan 12, 2018 at 03:56:05PM +0800, Xiongfeng Wang wrote:
> From: Xiongfeng Wang <xiongfeng.wang@linaro.org>

>

> gcc-8 reports

>

> drivers/infiniband/core/cma_configfs.c: In function 'make_cma_dev':

> ./include/linux/string.h:245:9: warning: '__builtin_strncpy' specified

> bound 64 equals destination size [-Wstringop-truncation]

>

> We need to use strlcpy() to make sure the string is nul-terminated.

>

> Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>

> ---

>  drivers/infiniband/core/cma_configfs.c | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

>



Thanks,
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Jason Gunthorpe Jan. 15, 2018, 11:04 p.m. UTC | #2
On Fri, Jan 12, 2018 at 03:56:05PM +0800, Xiongfeng Wang wrote:
> From: Xiongfeng Wang <xiongfeng.wang@linaro.org>

> 

> gcc-8 reports

> 

> drivers/infiniband/core/cma_configfs.c: In function 'make_cma_dev':

> ./include/linux/string.h:245:9: warning: '__builtin_strncpy' specified

> bound 64 equals destination size [-Wstringop-truncation]

> 

> We need to use strlcpy() to make sure the string is nul-terminated.

> 

> Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>

> Reviewed-by: Leon Romanovsky <leonro@mellanox.com>

>  drivers/infiniband/core/cma_configfs.c | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)


Applied to rdma for-next, thanks

Jason
diff mbox series

Patch

diff --git a/drivers/infiniband/core/cma_configfs.c b/drivers/infiniband/core/cma_configfs.c
index 31dfee0..eee38b4 100644
--- a/drivers/infiniband/core/cma_configfs.c
+++ b/drivers/infiniband/core/cma_configfs.c
@@ -295,7 +295,7 @@  static struct config_group *make_cma_dev(struct config_group *group,
 		goto fail;
 	}
 
-	strncpy(cma_dev_group->name, name, sizeof(cma_dev_group->name));
+	strlcpy(cma_dev_group->name, name, sizeof(cma_dev_group->name));
 
 	config_group_init_type_name(&cma_dev_group->ports_group, "ports",
 				    &cma_ports_group_type);