Re: [RESEND PATCH] net: introduce helper macra CMSG_FOREACH_HDR
From: Joe Perches <joe@perches.com>
Date: 2014-12-05 08:02:38
Also in:
lkml
On Fri, 2014-12-05 at 15:14 +0800, Gu Zheng wrote:
Introduce helper macra
macro
CMSG_FOREACH_HDR as a wrapper of the enumerating cmsghdr from msghdr, just cleanup.
maybe better to use lower case "for_each_cmsg_hdr" or some such. checkpatch would recognize that too as long as it uses "for_each".
quoted hunk ↗ jump to hunk
diff --git a/include/linux/socket.h b/include/linux/socket.h
[]
quoted hunk ↗ jump to hunk
@@ -94,6 +94,10 @@ struct cmsghdr { (cmsg)->cmsg_len <= (unsigned long) \ ((mhdr)->msg_controllen - \ ((char *)(cmsg) - (char *)(mhdr)->msg_control))) +#define CMSG_FOREACH_HDR(cmsg, msg) \ + for (cmsg = CMSG_FIRSTHDR(msg); \ + cmsg; \ + cmsg = CMSG_NXTHDR(msg, cmsg))