Hi Matt, kernel test robot noticed the following build errors: [auto build test ERROR on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Matt-Johnston/dt-bindings-i3c-Add-mctp-controller-property/20231003-144037 base: net-next/main patch link: https://lore.kernel.org/r/20231003063624.126723-4-matt%40codeconstruct.com.au patch subject: [PATCH net-next v3 3/3] mctp i3c: MCTP I3C driver config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20231003/202310032142.NaWYwlZc-lkp@xxxxxxxxx/config) compiler: sh4-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231003/202310032142.NaWYwlZc-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202310032142.NaWYwlZc-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/net/mctp/mctp-i3c.c: In function 'mctp_i3c_read': >> drivers/net/mctp/mctp-i3c.c:121:9: error: implicit declaration of function 'put_unaligned_be48' [-Werror=implicit-function-declaration] 121 | put_unaligned_be48(mi->pid, ihdr->source); | ^~~~~~~~~~~~~~~~~~ drivers/net/mctp/mctp-i3c.c: In function 'mctp_i3c_xmit': >> drivers/net/mctp/mctp-i3c.c:380:15: error: implicit declaration of function 'get_unaligned_be48'; did you mean 'get_unalign_ctl'? [-Werror=implicit-function-declaration] 380 | pid = get_unaligned_be48(ihdr->dest); | ^~~~~~~~~~~~~~~~~~ | get_unalign_ctl cc1: some warnings being treated as errors vim +/put_unaligned_be48 +121 drivers/net/mctp/mctp-i3c.c 98 99 static int mctp_i3c_read(struct mctp_i3c_device *mi) 100 { 101 struct i3c_priv_xfer xfer = { .rnw = 1, .len = mi->mrl }; 102 struct net_device_stats *stats = &mi->mbus->ndev->stats; 103 struct mctp_i3c_internal_hdr *ihdr = NULL; 104 struct sk_buff *skb = NULL; 105 struct mctp_skb_cb *cb; 106 int net_status, rc; 107 u8 pec, addr; 108 109 skb = netdev_alloc_skb(mi->mbus->ndev, 110 mi->mrl + sizeof(struct mctp_i3c_internal_hdr)); 111 if (!skb) { 112 stats->rx_dropped++; 113 rc = -ENOMEM; 114 goto err; 115 } 116 117 skb->protocol = htons(ETH_P_MCTP); 118 /* Create a header for internal use */ 119 skb_reset_mac_header(skb); 120 ihdr = skb_put(skb, sizeof(struct mctp_i3c_internal_hdr)); > 121 put_unaligned_be48(mi->pid, ihdr->source); 122 put_unaligned_be48(mi->mbus->pid, ihdr->dest); 123 skb_pull(skb, sizeof(struct mctp_i3c_internal_hdr)); 124 125 xfer.data.in = skb_put(skb, mi->mrl); 126 127 rc = i3c_device_do_priv_xfers(mi->i3c, &xfer, 1); 128 if (rc < 0) 129 goto err; 130 131 if (WARN_ON_ONCE(xfer.len > mi->mrl)) { 132 /* Bad i3c bus driver */ 133 rc = -EIO; 134 goto err; 135 } 136 if (xfer.len < MCTP_I3C_MINLEN) { 137 stats->rx_length_errors++; 138 rc = -EIO; 139 goto err; 140 } 141 142 /* check PEC, including address byte */ 143 addr = mi->addr << 1 | 1; 144 pec = i2c_smbus_pec(0, &addr, 1); 145 pec = i2c_smbus_pec(pec, xfer.data.in, xfer.len - 1); 146 if (pec != ((u8 *)xfer.data.in)[xfer.len - 1]) { 147 stats->rx_crc_errors++; 148 rc = -EINVAL; 149 goto err; 150 } 151 152 /* Remove PEC */ 153 skb_trim(skb, xfer.len - 1); 154 155 cb = __mctp_cb(skb); 156 cb->halen = PID_SIZE; 157 put_unaligned_be48(mi->pid, cb->haddr); 158 159 net_status = netif_rx(skb); 160 161 if (net_status == NET_RX_SUCCESS) { 162 stats->rx_packets++; 163 stats->rx_bytes += xfer.len - 1; 164 } else { 165 stats->rx_dropped++; 166 } 167 168 return 0; 169 err: 170 kfree_skb(skb); 171 return rc; 172 } 173 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki