Hi LABBE, [auto build test WARNING on net/master -- if it's inappropriate base, please suggest rules for selecting the more suitable base]
url: https://github.com/0day-ci/linux/commits/LABBE-Corentin/net-change-len-parameter-type-for-memcpy_-to-from-_msg/20151023-201642 config: xtensa-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=xtensa All warnings (new ones prefixed by >>): In file included from include/linux/uio.h:12:0, from include/linux/socket.h:7, from net/ipv6/raw.c:23: net/ipv6/raw.c: In function 'raw6_getfrag': include/linux/kernel.h:722:17: warning: comparison of distinct pointer types lacks a cast (void) (&_min1 == &_min2); \ ^ >> net/ipv6/raw.c:708:14: note: in expansion of macro 'min' int copy = min(rfv->hlen - offset, len); ^ vim +/min +708 net/ipv6/raw.c ^1da177e Linus Torvalds 2005-04-16 692 break; 6e8f4d48 Masahide NAKAMURA 2006-08-23 693 case IPPROTO_MH: 19e3c66b Al Viro 2014-11-24 694 rfv->hlen = 4; 19e3c66b Al Viro 2014-11-24 695 err = memcpy_from_msg(rfv->c, rfv->msg, rfv->hlen); 19e3c66b Al Viro 2014-11-24 696 if (!err) 19e3c66b Al Viro 2014-11-24 697 fl6->fl6_mh_type = rfv->c[2]; ^1da177e Linus Torvalds 2005-04-16 698 } 19e3c66b Al Viro 2014-11-24 699 return err; ^1da177e Linus Torvalds 2005-04-16 700 } 19e3c66b Al Viro 2014-11-24 701 19e3c66b Al Viro 2014-11-24 702 static int raw6_getfrag(void *from, char *to, int offset, int len, int odd, 19e3c66b Al Viro 2014-11-24 703 struct sk_buff *skb) 19e3c66b Al Viro 2014-11-24 704 { 19e3c66b Al Viro 2014-11-24 705 struct raw6_frag_vec *rfv = from; 19e3c66b Al Viro 2014-11-24 706 19e3c66b Al Viro 2014-11-24 707 if (offset < rfv->hlen) { 19e3c66b Al Viro 2014-11-24 @708 int copy = min(rfv->hlen - offset, len); 19e3c66b Al Viro 2014-11-24 709 19e3c66b Al Viro 2014-11-24 710 if (skb->ip_summed == CHECKSUM_PARTIAL) 19e3c66b Al Viro 2014-11-24 711 memcpy(to, rfv->c + offset, copy); 19e3c66b Al Viro 2014-11-24 712 else 19e3c66b Al Viro 2014-11-24 713 skb->csum = csum_block_add( 19e3c66b Al Viro 2014-11-24 714 skb->csum, 19e3c66b Al Viro 2014-11-24 715 csum_partial_copy_nocheck(rfv->c + offset, 19e3c66b Al Viro 2014-11-24 716 to, copy, 0), :::::: The code at line 708 was first introduced by commit :::::: 19e3c66b52caf20a9a1119dc847b6abae4c03f4f ipv6 equivalent of "ipv4: Avoid reading user iov twice after raw_probe_proto_opt" :::::: TO: Al Viro <v...@zeniv.linux.org.uk> :::::: CC: Al Viro <v...@zeniv.linux.org.uk> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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