[net-next:master 126/134] include/net/ipv6.h:555:26: sparse: cast to restricted __be32
From: Fengguang Wu <hidden>
Date: 2013-01-14 02:56:04
Hi YOSHIFUJI, FYI, there are new sparse warnings show up in tree: git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git master head: 25d46f43a911b08c5aa8c8fd4fe7fa9b36445068 commit: 3e4e4c1f2da66b29ee9379ca29f8dd620c2b5a1f [126/134] ipv6: Introduce ip6_flow_hdr() to fill version, tclass and flowlabel.
quoted
include/net/ipv6.h:555:26: sparse: cast to restricted __be32 include/net/ipv6.h:555:63: sparse: restricted __be32 degrades to integer include/net/ipv6.h:555:24: sparse: incorrect type in assignment (different base types)
include/net/ipv6.h:555:24: expected restricted __be32 [usertype] <noident>
include/net/ipv6.h:555:24: got unsigned int
vim +555 include/net/ipv6.h
971f359d YOSHIFUJI Hideaki 2005-11-08 549 /*
3e4e4c1f YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 550 * Header manipulation
3e4e4c1f YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 551 */
3e4e4c1f YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 552 static inline void ip6_flow_hdr(struct ipv6hdr *hdr, unsigned int tclass,
3e4e4c1f YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 553 __be32 flowlabel)
3e4e4c1f YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 554 {
3e4e4c1f YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 @555 *(__be32 *)hdr = ntohl(0x60000000 | (tclass << 20)) | flowlabel;
3e4e4c1f YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 556 }
3e4e4c1f YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 557
3e4e4c1f YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 558 /*
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0-DAY kernel build testing backend Open Source Technology Center
Fengguang Wu, Yuanhan Liu Intel Corporation