[PATCH -next] sunrpc: use kmemdup_nul() in gssp_stringify()

[Chen Zhou]

It is more efficient to use kmemdup_nul() if the size is known exactly
.

According to doc:
"Note: Use kmemdup_nul() instead if the size is known exactly."

Signed-off-by: Chen Zhou <chenzho...@huawei.com>
---
 net/sunrpc/auth_gss/gss_rpc_upcall.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/auth_gss/gss_rpc_upcall.c 
b/net/sunrpc/auth_gss/gss_rpc_upcall.c
index 0349f455a862..af9c7f43859c 100644
--- a/net/sunrpc/auth_gss/gss_rpc_upcall.c
+++ b/net/sunrpc/auth_gss/gss_rpc_upcall.c
@@ -223,7 +223,7 @@ static int gssp_alloc_receive_pages(struct 
gssx_arg_accept_sec_context *arg)
 
 static char *gssp_stringify(struct xdr_netobj *netobj)
 {
-       return kstrndup(netobj->data, netobj->len, GFP_KERNEL);
+       return kmemdup_nul(netobj->data, netobj->len, GFP_KERNEL);
 }
 
 static void gssp_hostbased_service(char **principal)
-- 
2.20.1