SUNRPC: Fix fall-through warnings for Clang

stable inclusion
from stable-v5.10.117
commit 937c6b0e3e94c09d4b9ddccb3d49c8b4f71f4700
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5L66B

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=937c6b0e3e94c09d4b9ddccb3d49c8b4f71f4700

--------------------------------

commit 93f479d3 upstream.

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of
letting the code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115Signed-off-by: NGustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>

net/sunrpc/rpc_pipe.c

@@ -478,6 +478,7 @@ rpc_get_inode(struct super_block *sb, umode_t mode)
 		inode->i_fop = &simple_dir_operations;
 		inode->i_op = &simple_dir_inode_operations;
 		inc_nlink(inode);
+		break;
 	default:
 		break;
 	}

net/sunrpc/xprtsock.c

@@ -1917,6 +1917,7 @@ static int xs_local_setup_socket(struct sock_xprt *transport)
 		xprt->stat.connect_time += (long)jiffies -
 					   xprt->stat.connect_start;
 		xprt_set_connected(xprt);
+		break;
 	case -ENOBUFS:
 		break;
 	case -ENOENT: