Hi stephen,
FYI, there are new sparse warnings show up in
tree: git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next.git for-davem
head: c487606f835a93a725bac1aefd536be98f22474d
commit: d208328765a0ab425e36b5b828285f3337a85451 [123/299] gre: fix handling of key 0
+ net/ipv4/ip_gre.c:222:29: sparse: restricted __be16 degrades to integer
net/ipv4/ip_gre.c:227:34: sparse: restricted __be16 degrades to integer
+ net/ipv4/ip_gre.c:562:33: sparse: incorrect type in argument 4 (different base types)
net/ipv4/ip_gre.c:562:33: expected unsigned int [unsigned] [usertype] flags
net/ipv4/ip_gre.c:562:33: got restricted __be16 [assigned] [usertype] flags
net/ipv4/ip_gre.c:669:62: sparse: incorrect type in argument 4 (different base types)
net/ipv4/ip_gre.c:669:62: expected unsigned int [unsigned] [usertype] flags
net/ipv4/ip_gre.c:669:62: got restricted __be16 [assigned] [usertype] flags
vim +222 net/ipv4/ip_gre.c
d2083287 (stephen hemminger 2012-09-24 217) /* Does key in tunnel parameters match packet */
d2083287 (stephen hemminger 2012-09-24 218) static bool ipgre_key_match(const struct ip_tunnel_parm *p,
d2083287 (stephen hemminger 2012-09-24 219) __u32 flags, __be32 key)
d2083287 (stephen hemminger 2012-09-24 220) {
d2083287 (stephen hemminger 2012-09-24 221) if (p->i_flags & GRE_KEY) {
d2083287 (stephen hemminger 2012-09-24 @222) if (flags & GRE_KEY)
d2083287 (stephen hemminger 2012-09-24 223) return key == p->i_key;
d2083287 (stephen hemminger 2012-09-24 224) else
d2083287 (stephen hemminger 2012-09-24 225) return false; /* key expected, none present */
d2083287 (stephen hemminger 2012-09-24 226) } else
d2083287 (stephen hemminger 2012-09-24 227) return !(flags & GRE_KEY);
d2083287 (stephen hemminger 2012-09-24 228) }
d2083287 (stephen hemminger 2012-09-24 229)
^1da177e (Linus Torvalds 2005-04-16 230) /* Given src, dst and key, find appropriate for input tunnel. */
---
0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu, Yuanhan Liu Intel Corporation
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