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ceph: mark expected switch fall-throughs 

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

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
[idryomov@gmail.com: amended "Older OSDs" comment]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Gustavo A. R. Silva 2017-10-15 12:55:23 -05:00 committed by Ilya Dryomov
parent 76bd6ec498
commit 18370b36b2
3 changed files with 15 additions and 3 deletions
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12
net/ceph/ceph_hash.c
View File

@ -47,28 +47,38 @@ unsigned int ceph_str_hash_rjenkins(const char *str, unsigned int length)
/* handle the last 11 bytes */
c = c + length;
switch (len) { /* all the case statements fall through */
switch (len) {
case 11:
c = c + ((__u32)k[10] << 24);
/* fall through */
case 10:
c = c + ((__u32)k[9] << 16);
/* fall through */
case 9:
c = c + ((__u32)k[8] << 8);
/* the first byte of c is reserved for the length */
/* fall through */
case 8:
b = b + ((__u32)k[7] << 24);
/* fall through */
case 7:
b = b + ((__u32)k[6] << 16);
/* fall through */
case 6:
b = b + ((__u32)k[5] << 8);
/* fall through */
case 5:
b = b + k[4];
/* fall through */
case 4:
a = a + ((__u32)k[3] << 24);
/* fall through */
case 3:
a = a + ((__u32)k[2] << 16);
/* fall through */
case 2:
a = a + ((__u32)k[1] << 8);
/* fall through */
case 1:
a = a + k[0];
/* case 0: nothing left to add */

1
net/ceph/messenger.c
View File

@ -430,6 +430,7 @@ static void ceph_sock_state_change(struct sock *sk)
switch (sk->sk_state) {
case TCP_CLOSE:
dout("%s TCP_CLOSE\n", __func__);
/* fall through */
case TCP_CLOSE_WAIT:
dout("%s TCP_CLOSE_WAIT\n", __func__);
con_sock_state_closing(con);

5
net/ceph/mon_client.c
View File

@ -1279,9 +1279,10 @@ static struct ceph_msg *mon_alloc_msg(struct ceph_connection *con,
/*
* Older OSDs don't set reply tid even if the orignal
* request had a non-zero tid. Workaround this weirdness
* by falling through to the allocate case.
* request had a non-zero tid. Work around this weirdness
* by allocating a new message.
*/
/* fall through */
case CEPH_MSG_MON_MAP:
case CEPH_MSG_MDS_MAP:
case CEPH_MSG_OSD_MAP: