Hi Jason, I love your patch! Yet something to improve:
[auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Jason-Wang/XDP-transmission-for-tuntap/20180101-105946 config: i386-randconfig-s1-201800 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): net/socket.o: In function `tun_xdp_to_ptr': >> net/socket.c:3363: multiple definition of `tun_xdp_to_ptr' drivers/vhost/net.o:drivers/vhost/net.c:1026: first defined here net/socket.o: In function `tun_ptr_to_xdp': >> include/linux/if_tun.h:50: multiple definition of `tun_ptr_to_xdp' drivers/vhost/net.o:include/linux/if_tun.h:50: first defined here vim +3363 net/socket.c ac5a488e Sridhar Samudrala 2006-08-07 3352 306b13eb Tom Herbert 2017-07-28 3353 int kernel_sendpage_locked(struct sock *sk, struct page *page, int offset, 306b13eb Tom Herbert 2017-07-28 3354 size_t size, int flags) 306b13eb Tom Herbert 2017-07-28 3355 { 306b13eb Tom Herbert 2017-07-28 3356 struct socket *sock = sk->sk_socket; 306b13eb Tom Herbert 2017-07-28 3357 306b13eb Tom Herbert 2017-07-28 3358 if (sock->ops->sendpage_locked) 306b13eb Tom Herbert 2017-07-28 3359 return sock->ops->sendpage_locked(sk, page, offset, size, 306b13eb Tom Herbert 2017-07-28 3360 flags); 306b13eb Tom Herbert 2017-07-28 3361 306b13eb Tom Herbert 2017-07-28 3362 return sock_no_sendpage_locked(sk, page, offset, size, flags); 306b13eb Tom Herbert 2017-07-28 @3363 } 306b13eb Tom Herbert 2017-07-28 3364 EXPORT_SYMBOL(kernel_sendpage_locked); 306b13eb Tom Herbert 2017-07-28 3365 :::::: The code at line 3363 was first introduced by commit :::::: 306b13eb3cf9515a8214bbf5d69d811371d05792 proto_ops: Add locked held versions of sendmsg and sendpage :::::: TO: Tom Herbert <t...@quantonium.net> :::::: CC: David S. Miller <da...@davemloft.net> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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