NFS: super: mark expected switch fall-throughs

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@embeddedor.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index c9d24bae302514957435350f8a8a560e98c8a961..da19c723a244932dd0319e14c8649ad8fd1c7dc6 100644 (file)
--- 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)