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/asm-generic/bug.h:13:0, from arch/xtensa/include/generated/asm/bug.h:1, from include/linux/bug.h:4, from include/linux/thread_info.h:11, from arch/xtensa/include/asm/current.h:16, from net/ipv4/raw.c:43: net/ipv4/raw.c: In function 'raw_getfrag': include/linux/kernel.h:722:17: warning: comparison of distinct pointer types lacks a cast (void) (&_min1 == &_min2); \ ^ >> net/ipv4/raw.c:458:14: note: in expansion of macro 'min' int copy = min(rfv->hlen - offset, len); ^ vim +/min +458 net/ipv4/raw.c b61e9dcc5 Al Viro 2014-11-24 442 err = memcpy_from_msg(rfv->hdr.c, rfv->msg, rfv->hlen); 32b5913a9 Herbert Xu 2014-11-07 443 if (err) 32b5913a9 Herbert Xu 2014-11-07 444 return err; ^1da177e4 Linus Torvalds 2005-04-16 445 c008ba5bd Herbert Xu 2014-11-07 446 fl4->fl4_icmp_type = rfv->hdr.icmph.type; c008ba5bd Herbert Xu 2014-11-07 447 fl4->fl4_icmp_code = rfv->hdr.icmph.code; ^1da177e4 Linus Torvalds 2005-04-16 448 a27b58fed Heiko Carstens 2006-10-30 449 return 0; ^1da177e4 Linus Torvalds 2005-04-16 450 } ^1da177e4 Linus Torvalds 2005-04-16 451 c008ba5bd Herbert Xu 2014-11-07 452 static int raw_getfrag(void *from, char *to, int offset, int len, int odd, c008ba5bd Herbert Xu 2014-11-07 453 struct sk_buff *skb) c008ba5bd Herbert Xu 2014-11-07 454 { c008ba5bd Herbert Xu 2014-11-07 455 struct raw_frag_vec *rfv = from; c008ba5bd Herbert Xu 2014-11-07 456 c008ba5bd Herbert Xu 2014-11-07 457 if (offset < rfv->hlen) { c008ba5bd Herbert Xu 2014-11-07 @458 int copy = min(rfv->hlen - offset, len); c008ba5bd Herbert Xu 2014-11-07 459 c008ba5bd Herbert Xu 2014-11-07 460 if (skb->ip_summed == CHECKSUM_PARTIAL) c008ba5bd Herbert Xu 2014-11-07 461 memcpy(to, rfv->hdr.c + offset, copy); c008ba5bd Herbert Xu 2014-11-07 462 else c008ba5bd Herbert Xu 2014-11-07 463 skb->csum = csum_block_add( c008ba5bd Herbert Xu 2014-11-07 464 skb->csum, c008ba5bd Herbert Xu 2014-11-07 465 csum_partial_copy_nocheck(rfv->hdr.c + offset, c008ba5bd Herbert Xu 2014-11-07 466 to, copy, 0), :::::: The code at line 458 was first introduced by commit :::::: c008ba5bdc9fa830e1a349b20b0be5a137bdef7a ipv4: Avoid reading user iov twice after raw_probe_proto_opt :::::: TO: Herbert Xu <herb...@gondor.apana.org.au> :::::: 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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