Thread (9 messages) flat view 9 messages, 5 authors, 2018-02-21

Re: [PATCH] rds: send: mark expected switch fall-through in rds_rm_size

From: Santosh Shilimkar <hidden>
Date: 2018-02-20 17:54:35
Also in: lkml

Hi,

2/19/2018 10:10 AM, Gustavo A. R. Silva wrote:
quoted hunk ↗ jump to hunk
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1465362 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <redacted>
---
  net/rds/send.c | 2 ++
  1 file changed, 2 insertions(+)
diff --git a/net/rds/send.c b/net/rds/send.c
index 028ab59..79d158b 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -902,6 +902,8 @@ static int rds_rm_size(struct msghdr *msg, int num_sgs)
  
  		case RDS_CMSG_ZCOPY_COOKIE:
  			zcopy_cookie = true;
+			/* fall through */
+
  		case RDS_CMSG_RDMA_DEST:
  		case RDS_CMSG_RDMA_MAP:
  			cmsg_groups |= 2;
So coverity greps for commet as "fall through" for
-Wimplicit-fallthrough build ?

Adding that comments itself if fine but was curious
about it if some one makes a spell error in this
comment what happens ;-)

For patch itself,
Acked-by: Santosh Shilimkar <redacted>
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