[PATCH] NFS: super: mark expected switch fall-throughs

From: Gustavo A. R. Silva
Date: Wed Nov 08 2017 - 21:49:30 EST


In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 703509
Addresses-Coverity-ID: 703510
Addresses-Coverity-ID: 703511
Addresses-Coverity-ID: 703512
Addresses-Coverity-ID: 703513
Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
---
fs/nfs/super.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index c9d24ba..da19c72 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1456,18 +1456,21 @@ static int nfs_parse_mount_options(char *raw,
switch (token) {
case Opt_xprt_udp6:
protofamily = AF_INET6;
+ /* fall through */
case Opt_xprt_udp:
mnt->flags &= ~NFS_MOUNT_TCP;
mnt->nfs_server.protocol = XPRT_TRANSPORT_UDP;
break;
case Opt_xprt_tcp6:
protofamily = AF_INET6;
+ /* fall through */
case Opt_xprt_tcp:
mnt->flags |= NFS_MOUNT_TCP;
mnt->nfs_server.protocol = XPRT_TRANSPORT_TCP;
break;
case Opt_xprt_rdma6:
protofamily = AF_INET6;
+ /* fall through */
case Opt_xprt_rdma:
/* vector side protocols to TCP */
mnt->flags |= NFS_MOUNT_TCP;
@@ -1494,11 +1497,13 @@ static int nfs_parse_mount_options(char *raw,
switch (token) {
case Opt_xprt_udp6:
mountfamily = AF_INET6;
+ /* fall through */
case Opt_xprt_udp:
mnt->mount_server.protocol = XPRT_TRANSPORT_UDP;
break;
case Opt_xprt_tcp6:
mountfamily = AF_INET6;
+ /* fall through */
case Opt_xprt_tcp:
mnt->mount_server.protocol = XPRT_TRANSPORT_TCP;
break;
@@ -1988,9 +1993,9 @@ static int nfs23_validate_mount_data(void *options,
args->version = NFS_DEFAULT_VERSION;
switch (data->version) {
case 1:
- data->namlen = 0;
+ data->namlen = 0; /* fall through */
case 2:
- data->bsize = 0;
+ data->bsize = 0; /* fall through */
case 3:
if (data->flags & NFS_MOUNT_VER3)
goto out_no_v3;
@@ -1998,11 +2003,14 @@ static int nfs23_validate_mount_data(void *options,
memcpy(data->root.data, data->old_root.data, NFS2_FHSIZE);
/* Turn off security negotiation */
extra_flags |= NFS_MOUNT_SECFLAVOUR;
+ /* fall through */
case 4:
if (data->flags & NFS_MOUNT_SECFLAVOUR)
goto out_no_sec;
+ /* fall through */
case 5:
memset(data->context, 0, sizeof(data->context));
+ /* fall through */
case 6:
if (data->flags & NFS_MOUNT_VER3) {
if (data->root.size > NFS3_FHSIZE || data->root.size == 0)
--
2.7.4