path: root/net/ipv4/tcp_fastopen.c
diff options
authorShannon Nelson <shannon.nelson@oracle.com>2017-01-12 14:24:58 -0800
committerDavid S. Miller <davem@davemloft.net>2017-01-13 12:31:24 -0500
commit003c941057eaa868ca6fedd29a274c863167230d (patch)
tree737b0e03c7e02fffc100298254a80e28d288d26d /net/ipv4/tcp_fastopen.c
parentipv6: sr: fix several BUGs when preemption is enabled (diff)
tcp: fix tcp_fastopen unaligned access complaints on sparc
Fix up a data alignment issue on sparc by swapping the order of the cookie byte array field with the length field in struct tcp_fastopen_cookie, and making it a proper union to clean up the typecasting. This addresses log complaints like these: log_unaligned: 113 callbacks suppressed Kernel unaligned access at TPC[976490] tcp_try_fastopen+0x2d0/0x360 Kernel unaligned access at TPC[9764ac] tcp_try_fastopen+0x2ec/0x360 Kernel unaligned access at TPC[9764c8] tcp_try_fastopen+0x308/0x360 Kernel unaligned access at TPC[9764e4] tcp_try_fastopen+0x324/0x360 Kernel unaligned access at TPC[976490] tcp_try_fastopen+0x2d0/0x360 Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_fastopen.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index 4e777a3243f9..f51919535ca7 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -113,7 +113,7 @@ static bool tcp_fastopen_cookie_gen(struct request_sock *req,
struct tcp_fastopen_cookie tmp;
if (__tcp_fastopen_cookie_gen(&ip6h->saddr, &tmp)) {
- struct in6_addr *buf = (struct in6_addr *) tmp.val;
+ struct in6_addr *buf = &tmp.addr;
int i;
for (i = 0; i < 4; i++)