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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-05 14:27:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-05 14:27:02 -0700
commit3526dd0c7832f1011a0477cc6d903662bae05ea8 (patch)
tree22fbac64eb40a0b29bfa4c029695f39b2f591e62 /net
parentdd972f924df6bdbc0ab185a38d5d2361dbc26311 (diff)
parentbc6d65e6dc89c3b7ff78e4ad797117c122ffde8e (diff)
downloadlinux-3526dd0c7832f1011a0477cc6d903662bae05ea8.tar.bz2
Merge tag 'for-4.17/block-20180402' of git://git.kernel.dk/linux-block
Pull block layer updates from Jens Axboe: "It's a pretty quiet round this time, which is nice. This contains: - series from Bart, cleaning up the way we set/test/clear atomic queue flags. - series from Bart, fixing races between gendisk and queue registration and removal. - set of bcache fixes and improvements from various folks, by way of Michael Lyle. - set of lightnvm updates from Matias, most of it being the 1.2 to 2.0 transition. - removal of unused DIO flags from Nikolay. - blk-mq/sbitmap memory ordering fixes from Omar. - divide-by-zero fix for BFQ from Paolo. - minor documentation patches from Randy. - timeout fix from Tejun. - Alpha "can't write a char atomically" fix from Mikulas. - set of NVMe fixes by way of Keith. - bsg and bsg-lib improvements from Christoph. - a few sed-opal fixes from Jonas. - cdrom check-disk-change deadlock fix from Maurizio. - various little fixes, comment fixes, etc from various folks" * tag 'for-4.17/block-20180402' of git://git.kernel.dk/linux-block: (139 commits) blk-mq: Directly schedule q->timeout_work when aborting a request blktrace: fix comment in blktrace_api.h lightnvm: remove function name in strings lightnvm: pblk: remove some unnecessary NULL checks lightnvm: pblk: don't recover unwritten lines lightnvm: pblk: implement 2.0 support lightnvm: pblk: implement get log report chunk lightnvm: pblk: rename ppaf* to addrf* lightnvm: pblk: check for supported version lightnvm: implement get log report chunk helpers lightnvm: make address conversions depend on generic device lightnvm: add support for 2.0 address format lightnvm: normalize geometry nomenclature lightnvm: complete geo structure with maxoc* lightnvm: add shorten OCSSD version in geo lightnvm: add minor version to generic geometry lightnvm: simplify geometry structure lightnvm: pblk: refactor init/exit sequences lightnvm: Avoid validation of default op value lightnvm: centralize permission check for lightnvm ioctl ...
Diffstat (limited to 'net')
-rw-r--r--net/core/utils.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/net/core/utils.c b/net/core/utils.c
index 93066bd0305a..d47863b07a60 100644
--- a/net/core/utils.c
+++ b/net/core/utils.c
@@ -403,6 +403,29 @@ int inet_pton_with_scope(struct net *net, __kernel_sa_family_t af,
}
EXPORT_SYMBOL(inet_pton_with_scope);
+bool inet_addr_is_any(struct sockaddr *addr)
+{
+ if (addr->sa_family == AF_INET6) {
+ struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)addr;
+ const struct sockaddr_in6 in6_any =
+ { .sin6_addr = IN6ADDR_ANY_INIT };
+
+ if (!memcmp(in6->sin6_addr.s6_addr,
+ in6_any.sin6_addr.s6_addr, 16))
+ return true;
+ } else if (addr->sa_family == AF_INET) {
+ struct sockaddr_in *in = (struct sockaddr_in *)addr;
+
+ if (in->sin_addr.s_addr == htonl(INADDR_ANY))
+ return true;
+ } else {
+ pr_warn("unexpected address family %u\n", addr->sa_family);
+ }
+
+ return false;
+}
+EXPORT_SYMBOL(inet_addr_is_any);
+
void inet_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb,
__be32 from, __be32 to, bool pseudohdr)
{