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afs: Mark expected switch fall-throughs

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

Notice that in many cases I placed a /* Fall through */ comment
at the bottom of the case, which what GCC is expecting to find.

In other cases I had to tweak a bit the format of the comments.

This patch suppresses ALL missing-break-in-switch false positives
in fs/afs

Addresses-Coverity-ID: 115042 ("Missing break in switch")
Addresses-Coverity-ID: 115043 ("Missing break in switch")
Addresses-Coverity-ID: 115045 ("Missing break in switch")
Addresses-Coverity-ID: 1357430 ("Missing break in switch")
Addresses-Coverity-ID: 115047 ("Missing break in switch")
Addresses-Coverity-ID: 115050 ("Missing break in switch")
Addresses-Coverity-ID: 115051 ("Missing break in switch")
Addresses-Coverity-ID: 1467806 ("Missing break in switch")
Addresses-Coverity-ID: 1467807 ("Missing break in switch")
Addresses-Coverity-ID: 1467811 ("Missing break in switch")
Addresses-Coverity-ID: 115041 ("Missing break in switch")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
This commit is contained in:
Gustavo A. R. Silva
2019-01-10 15:52:25 -06:00
parent 0a4c92657f
commit e690c9e3f4
8 changed files with 71 additions and 29 deletions
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18
fs/afs/vlclient.c
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@@ -195,7 +195,9 @@ static int afs_deliver_vl_get_addrs_u(struct afs_call *call)
sizeof(struct afs_uuid__xdr) + 3 * sizeof(__be32));
call->unmarshall++;
/* Extract the returned uuid, uniquifier, nentries and blkaddrs size */
/* Extract the returned uuid, uniquifier, nentries and
* blkaddrs size */
/* Fall through */
case 1:
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -220,7 +222,7 @@ static int afs_deliver_vl_get_addrs_u(struct afs_call *call)
count = min(call->count, 4U);
afs_extract_to_buf(call, count * sizeof(__be32));
/* Extract entries */
/* Fall through - and extract entries */
case 2:
ret = afs_extract_data(call, call->count > 4);
if (ret < 0)
@@ -323,7 +325,7 @@ static int afs_deliver_vl_get_capabilities(struct afs_call *call)
afs_extract_to_tmp(call);
call->unmarshall++;
/* Extract the capabilities word count */
/* Fall through - and extract the capabilities word count */
case 1:
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -336,7 +338,7 @@ static int afs_deliver_vl_get_capabilities(struct afs_call *call)
call->unmarshall++;
afs_extract_discard(call, count * sizeof(__be32));
/* Extract capabilities words */
/* Fall through - and extract capabilities words */
case 2:
ret = afs_extract_data(call, false);
if (ret < 0)
@@ -436,6 +438,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
/* Extract the returned uuid, uniquifier, fsEndpoints count and
* either the first fsEndpoint type or the volEndpoints
* count if there are no fsEndpoints. */
/* Fall through */
case 1:
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -476,7 +479,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
afs_extract_to_buf(call, size);
call->unmarshall = 2;
/* Extract fsEndpoints[] entries */
/* Fall through - and extract fsEndpoints[] entries */
case 2:
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -529,6 +532,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
* extract the type of the next endpoint when we extract the
* data of the current one, but this is the first...
*/
/* Fall through */
case 3:
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -555,7 +559,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
afs_extract_to_buf(call, size);
call->unmarshall = 4;
/* Extract volEndpoints[] entries */
/* Fall through - and extract volEndpoints[] entries */
case 4:
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -591,7 +595,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
afs_extract_discard(call, 0);
call->unmarshall = 5;
/* Done */
/* Fall through - Done */
case 5:
ret = afs_extract_data(call, false);
if (ret < 0)