path: root/net/core
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authorNikolay Aleksandrov <nikolay@cumulusnetworks.com>2015-08-28 15:44:25 -0700
committerDavid S. Miller <davem@davemloft.net>2015-08-28 16:24:54 -0700
commitc9fd56b34efd06a031cbc918d288f09e38173ff9 (patch)
treeb15af8ee72efff9c70768de7b4c764b691c1a47f /net/core
parent55cc051915fd066f46c56ebd60ba486ad11e0e29 (diff)
netpoll: warn on netpoll_send_udp users who haven't disabled irqs
Make sure we catch future netpoll_send_udp users who use it without disabling irqs and also as a hint for poll_controller users. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
1 files changed, 2 insertions, 0 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index c126a878c47c..6aa3db8dfc3b 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -380,6 +380,8 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
static atomic_t ip_ident;
struct ipv6hdr *ip6h;
+ WARN_ON_ONCE(!irqs_disabled());
udp_len = len + sizeof(*udph);
if (np->ipv6)
ip_len = udp_len + sizeof(*ip6h);

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