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author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2015-08-28 22:44:25 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2015-08-28 23:24:54 (GMT) |
commit | c9fd56b34efd06a031cbc918d288f09e38173ff9 (patch) | |
tree | b15af8ee72efff9c70768de7b4c764b691c1a47f /net/core/netpoll.c | |
parent | 55cc051915fd066f46c56ebd60ba486ad11e0e29 (diff) | |
download | linux-c9fd56b34efd06a031cbc918d288f09e38173ff9.tar.xz |
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/netpoll.c')
-rw-r--r-- | net/core/netpoll.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c index c126a87..6aa3db8 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); |