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SubjectRe: [PATCH net-next v4 1/2] New kernel function to get IP overhead on a socket.
Hi Parameswaran,

[auto build test WARNING on net-next/master]

url: https://github.com/0day-ci/linux/commits/R-Parameswaran/New-kernel-function-to-get-IP-overhead-on-a-socket/20170324-065003
config: x86_64-randconfig-s1-03240701 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All warnings (new ones prefixed by >>):

net/socket.c: In function 'kernel_sock_ip_overhead':
>> net/socket.c:3359: warning: unused variable 'optv6'
>> net/socket.c:3357: warning: unused variable 'np'

vim +/optv6 +3359 net/socket.c

3351 * this is an IPv4 or IPv6 socket and the length from IP options turned
3352 * on at the socket.
3353 */
3354 u32 kernel_sock_ip_overhead(struct sock *sk)
3355 {
3356 struct inet_sock *inet;
> 3357 struct ipv6_pinfo *np;
3358 struct ip_options_rcu *opt;
> 3359 struct ipv6_txoptions *optv6 = NULL;
3360 u32 overhead = 0;
3361 bool owned_by_user;
3362

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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