Hi Laura, [auto build test WARNING on v4.9-rc8] [cannot apply to next-20170223] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Laura-Garcia-Liebana/netfilter-nft_hash-symhash-type-support/20170223-205609 config: i386-randconfig-x018-201708 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): net/netfilter/nft_hash.c: In function 'nft_symhash_eval': >> net/netfilter/nft_hash.c:55:48: warning: passing argument 1 of '__skb_get_hash_symmetric' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] h = reciprocal_scale(__skb_get_hash_symmetric(skb), priv->modulus); ^~~ In file included from include/linux/netlink.h:6:0, from net/netfilter/nft_hash.c:13: include/linux/skbuff.h:1090:5: note: expected 'struct sk_buff *' but argument is of type 'const struct sk_buff *' u32 __skb_get_hash_symmetric(struct sk_buff *skb); ^~~~~~~~~~~~~~~~~~~~~~~~ vim +55 net/netfilter/nft_hash.c 39 } 40 41 struct nft_symhash { 42 enum nft_registers dreg:8; 43 u32 modulus; 44 u32 offset; 45 }; 46 47 static void nft_symhash_eval(const struct nft_expr *expr, 48 struct nft_regs *regs, 49 const struct nft_pktinfo *pkt) 50 { 51 struct nft_symhash *priv = nft_expr_priv(expr); 52 const struct sk_buff *skb = pkt->skb; 53 u32 h; 54 > 55 h = reciprocal_scale(__skb_get_hash_symmetric(skb), priv->modulus); 56 57 regs->data[priv->dreg] = h + priv->offset; 58 } 59 60 static const struct nla_policy nft_hash_policy[NFTA_HASH_MAX + 1] = { 61 [NFTA_HASH_SREG] = { .type = NLA_U32 }, 62 [NFTA_HASH_DREG] = { .type = NLA_U32 }, 63 [NFTA_HASH_LEN] = { .type = NLA_U32 }, --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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