Hi Stephen, [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Stephen-Hemminger/net-make-ndo_get_stats64-a-void-function/20170106-160123 config: x86_64-acpi-redef (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=x86_64 All warnings (new ones prefixed by >>): drivers/net/ethernet/broadcom/bnx2.c: In function 'bnx2_get_stats64': >> drivers/net/ethernet/broadcom/bnx2.c:6830:10: warning: 'return' with a value, in function returning void return net_stats; ^~~~~~~~~ drivers/net/ethernet/broadcom/bnx2.c:6825:1: note: declared here bnx2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats) ^~~~~~~~~~~~~~~~ vim +/return +6830 drivers/net/ethernet/broadcom/bnx2.c 5d07bf26 drivers/net/bnx2.c Eric Dumazet 2010-07-08 6814 (((u64) (ctr##_hi) << 32) + (u64) (ctr##_lo)) b6016b76 drivers/net/bnx2.c Michael Chan 2005-05-26 6815 a4743058 drivers/net/bnx2.c Michael Chan 2010-01-17 6816 #define GET_64BIT_NET_STATS(ctr) \ 354fcd77 drivers/net/bnx2.c Michael Chan 2010-01-17 6817 GET_64BIT_NET_STATS64(bp->stats_blk->ctr) + \ 354fcd77 drivers/net/bnx2.c Michael Chan 2010-01-17 6818 GET_64BIT_NET_STATS64(bp->temp_stats_blk->ctr) b6016b76 drivers/net/bnx2.c Michael Chan 2005-05-26 6819 a4743058 drivers/net/bnx2.c Michael Chan 2010-01-17 6820 #define GET_32BIT_NET_STATS(ctr) \ 354fcd77 drivers/net/bnx2.c Michael Chan 2010-01-17 6821 (unsigned long) (bp->stats_blk->ctr + \ 354fcd77 drivers/net/bnx2.c Michael Chan 2010-01-17 6822 bp->temp_stats_blk->ctr) a4743058 drivers/net/bnx2.c Michael Chan 2010-01-17 6823 1e665d95 drivers/net/ethernet/broadcom/bnx2.c Stephen Hemminger 2017-01-05 6824 static void 5d07bf26 drivers/net/bnx2.c Eric Dumazet 2010-07-08 6825 bnx2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats) b6016b76 drivers/net/bnx2.c Michael Chan 2005-05-26 6826 { 972ec0d4 drivers/net/bnx2.c Michael Chan 2006-01-23 6827 struct bnx2 *bp = netdev_priv(dev); b6016b76 drivers/net/bnx2.c Michael Chan 2005-05-26 6828 5d07bf26 drivers/net/bnx2.c Eric Dumazet 2010-07-08 6829 if (bp->stats_blk == NULL) b6016b76 drivers/net/bnx2.c Michael Chan 2005-05-26 @6830 return net_stats; 5d07bf26 drivers/net/bnx2.c Eric Dumazet 2010-07-08 6831 b6016b76 drivers/net/bnx2.c Michael Chan 2005-05-26 6832 net_stats->rx_packets = a4743058 drivers/net/bnx2.c Michael Chan 2010-01-17 6833 GET_64BIT_NET_STATS(stat_IfHCInUcastPkts) + a4743058 drivers/net/bnx2.c Michael Chan 2010-01-17 6834 GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts) + a4743058 drivers/net/bnx2.c Michael Chan 2010-01-17 6835 GET_64BIT_NET_STATS(stat_IfHCInBroadcastPkts); b6016b76 drivers/net/bnx2.c Michael Chan 2005-05-26 6836 b6016b76 drivers/net/bnx2.c Michael Chan 2005-05-26 6837 net_stats->tx_packets = a4743058 drivers/net/bnx2.c Michael Chan 2010-01-17 6838 GET_64BIT_NET_STATS(stat_IfHCOutUcastPkts) + :::::: The code at line 6830 was first introduced by commit :::::: b6016b767397258b58163494a869f8f1199e6897 [BNX2]: New Broadcom gigabit network driver. :::::: TO: Michael Chan <mchan@xxxxxxxxxxxx> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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