Hi Sean, [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/sean-wang-mediatek-com/net-next-dsa-add-Mediatek-MT7530-support/20170330-135532 config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 4.9.0 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=m68k All errors (new ones prefixed by >>): In file included from net//dsa/tag_mtk.c:16:0: net//dsa/dsa_priv.h:51:16: warning: 'struct dsa_switch' declared inside parameter list struct dsa_port *dport, int port); ^ net//dsa/dsa_priv.h:51:16: warning: its scope is only this definition or declaration, which is probably not what you want net//dsa/dsa_priv.h:54:39: warning: 'struct dsa_switch' declared inside parameter list int dsa_cpu_port_ethtool_setup(struct dsa_switch *ds); ^ net//dsa/dsa_priv.h:55:42: warning: 'struct dsa_switch' declared inside parameter list void dsa_cpu_port_ethtool_restore(struct dsa_switch *ds); ^ net//dsa/dsa_priv.h:59:36: warning: 'struct dsa_switch' declared inside parameter list void dsa_slave_mii_bus_init(struct dsa_switch *ds); ^ net//dsa/dsa_priv.h:62:8: warning: 'struct dsa_switch' declared inside parameter list int port, const char *name); ^ net//dsa/dsa_priv.h:70:41: warning: 'struct dsa_switch' declared inside parameter list int dsa_switch_register_notifier(struct dsa_switch *ds); ^ net//dsa/dsa_priv.h:71:44: warning: 'struct dsa_switch' declared inside parameter list void dsa_switch_unregister_notifier(struct dsa_switch *ds); ^ net//dsa/tag_mtk.c: In function 'mtk_tag_xmit': >> net//dsa/tag_mtk.c:38:26: error: dereferencing pointer to incomplete type mtk_tag[1] = (1 << p->dp->index) & MTK_HDR_XMIT_DP_BIT_MASK; ^ net//dsa/tag_mtk.c: In function 'mtk_tag_rcv': net//dsa/tag_mtk.c:85:10: error: dereferencing pointer to incomplete type ds = dst->ds[0]; ^ net//dsa/tag_mtk.c:91:9: error: dereferencing pointer to incomplete type if (!ds->ports[port].netdev) ^ net//dsa/tag_mtk.c:98:15: error: dereferencing pointer to incomplete type skb->dev = ds->ports[port].netdev; ^ vim +38 net//dsa/tag_mtk.c 2faad9d7 Sean Wang 2017-03-29 22 static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb, 2faad9d7 Sean Wang 2017-03-29 23 struct net_device *dev) 2faad9d7 Sean Wang 2017-03-29 24 { 2faad9d7 Sean Wang 2017-03-29 25 struct dsa_slave_priv *p = netdev_priv(dev); 2faad9d7 Sean Wang 2017-03-29 26 u8 *mtk_tag; 2faad9d7 Sean Wang 2017-03-29 27 2faad9d7 Sean Wang 2017-03-29 28 if (skb_cow_head(skb, MTK_HDR_LEN) < 0) 2faad9d7 Sean Wang 2017-03-29 29 goto out_free; 2faad9d7 Sean Wang 2017-03-29 30 2faad9d7 Sean Wang 2017-03-29 31 skb_push(skb, MTK_HDR_LEN); 2faad9d7 Sean Wang 2017-03-29 32 2faad9d7 Sean Wang 2017-03-29 33 memmove(skb->data, skb->data + MTK_HDR_LEN, 2 * ETH_ALEN); 2faad9d7 Sean Wang 2017-03-29 34 2faad9d7 Sean Wang 2017-03-29 35 /* Build the tag after the MAC Source Address */ 2faad9d7 Sean Wang 2017-03-29 36 mtk_tag = skb->data + 2 * ETH_ALEN; 2faad9d7 Sean Wang 2017-03-29 37 mtk_tag[0] = 0; 2faad9d7 Sean Wang 2017-03-29 @38 mtk_tag[1] = (1 << p->dp->index) & MTK_HDR_XMIT_DP_BIT_MASK; 2faad9d7 Sean Wang 2017-03-29 39 mtk_tag[2] = 0; 2faad9d7 Sean Wang 2017-03-29 40 mtk_tag[3] = 0; 2faad9d7 Sean Wang 2017-03-29 41 2faad9d7 Sean Wang 2017-03-29 42 return skb; 2faad9d7 Sean Wang 2017-03-29 43 2faad9d7 Sean Wang 2017-03-29 44 out_free: 2faad9d7 Sean Wang 2017-03-29 45 kfree_skb(skb); 2faad9d7 Sean Wang 2017-03-29 46 return NULL; :::::: The code at line 38 was first introduced by commit :::::: 2faad9d71e4c0544e3cf43b24439517c95df301f net-next: dsa: add Mediatek tag RX/TX handler :::::: TO: Sean Wang <sean.wang@xxxxxxxxxxxx> :::::: CC: 0day robot <fengguang.wu@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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