Hi Manivannan, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: bdecf38f228bcca73b31ada98b5b7ba1215eb9c9 commit: e42671084361302141a09284fde9bbc14fdd16bf [6701/9662] net: qrtr: Do not depend on ARCH_QCOM reproduce: # apt-get install sparse # sparse version: v0.6.1-193-gb8fad4bc-dirty git checkout e42671084361302141a09284fde9bbc14fdd16bf make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) net/qrtr/qrtr.c:185:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got void [noderevoid const * @@ net/qrtr/qrtr.c:185:23: sparse: expected void const * net/qrtr/qrtr.c:185:23: sparse: got void [noderef] <asn:4> * net/qrtr/qrtr.c:356:25: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] confirm_rx @@ got e] confirm_rx @@ net/qrtr/qrtr.c:356:25: sparse: expected restricted __le32 [usertype] confirm_rx net/qrtr/qrtr.c:356:25: sparse: got int net/qrtr/qrtr.c:604:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct qrtr_tx_flow *flow @@ got voistruct qrtr_tx_flow *flow @@ net/qrtr/qrtr.c:604:22: sparse: expected struct qrtr_tx_flow *flow net/qrtr/qrtr.c:604:22: sparse: got void [noderef] <asn:4> * net/qrtr/qrtr.c:1125:22: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] <asnint *__pu_addr @@ net/qrtr/qrtr.c:1125:22: sparse: expected int *__pu_addr net/qrtr/qrtr.c:1125:22: sparse: got int [noderef] <asn:1> * net/qrtr/qrtr.c:1125:22: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *to @@ got :1> *to @@ net/qrtr/qrtr.c:1125:22: sparse: expected void [noderef] <asn:1> *to net/qrtr/qrtr.c:1125:22: sparse: got int *__pu_addr vim +1119 net/qrtr/qrtr.c bdabad3e363d825 Courtney Cavin 2016-05-06 1100 bdabad3e363d825 Courtney Cavin 2016-05-06 1101 static int qrtr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) bdabad3e363d825 Courtney Cavin 2016-05-06 1102 { bdabad3e363d825 Courtney Cavin 2016-05-06 1103 void __user *argp = (void __user *)arg; bdabad3e363d825 Courtney Cavin 2016-05-06 1104 struct qrtr_sock *ipc = qrtr_sk(sock->sk); bdabad3e363d825 Courtney Cavin 2016-05-06 1105 struct sock *sk = sock->sk; bdabad3e363d825 Courtney Cavin 2016-05-06 1106 struct sockaddr_qrtr *sq; bdabad3e363d825 Courtney Cavin 2016-05-06 1107 struct sk_buff *skb; bdabad3e363d825 Courtney Cavin 2016-05-06 1108 struct ifreq ifr; bdabad3e363d825 Courtney Cavin 2016-05-06 1109 long len = 0; bdabad3e363d825 Courtney Cavin 2016-05-06 1110 int rc = 0; bdabad3e363d825 Courtney Cavin 2016-05-06 1111 bdabad3e363d825 Courtney Cavin 2016-05-06 1112 lock_sock(sk); bdabad3e363d825 Courtney Cavin 2016-05-06 1113 bdabad3e363d825 Courtney Cavin 2016-05-06 1114 switch (cmd) { bdabad3e363d825 Courtney Cavin 2016-05-06 1115 case TIOCOUTQ: bdabad3e363d825 Courtney Cavin 2016-05-06 1116 len = sk->sk_sndbuf - sk_wmem_alloc_get(sk); bdabad3e363d825 Courtney Cavin 2016-05-06 1117 if (len < 0) bdabad3e363d825 Courtney Cavin 2016-05-06 1118 len = 0; bdabad3e363d825 Courtney Cavin 2016-05-06 @1119 rc = put_user(len, (int __user *)argp); bdabad3e363d825 Courtney Cavin 2016-05-06 1120 break; bdabad3e363d825 Courtney Cavin 2016-05-06 1121 case TIOCINQ: bdabad3e363d825 Courtney Cavin 2016-05-06 1122 skb = skb_peek(&sk->sk_receive_queue); bdabad3e363d825 Courtney Cavin 2016-05-06 1123 if (skb) f507a9b6e63b9f4 Bjorn Andersson 2017-10-10 1124 len = skb->len; bdabad3e363d825 Courtney Cavin 2016-05-06 1125 rc = put_user(len, (int __user *)argp); bdabad3e363d825 Courtney Cavin 2016-05-06 1126 break; bdabad3e363d825 Courtney Cavin 2016-05-06 1127 case SIOCGIFADDR: bdabad3e363d825 Courtney Cavin 2016-05-06 1128 if (copy_from_user(&ifr, argp, sizeof(ifr))) { bdabad3e363d825 Courtney Cavin 2016-05-06 1129 rc = -EFAULT; bdabad3e363d825 Courtney Cavin 2016-05-06 1130 break; bdabad3e363d825 Courtney Cavin 2016-05-06 1131 } bdabad3e363d825 Courtney Cavin 2016-05-06 1132 bdabad3e363d825 Courtney Cavin 2016-05-06 1133 sq = (struct sockaddr_qrtr *)&ifr.ifr_addr; bdabad3e363d825 Courtney Cavin 2016-05-06 1134 *sq = ipc->us; bdabad3e363d825 Courtney Cavin 2016-05-06 1135 if (copy_to_user(argp, &ifr, sizeof(ifr))) { bdabad3e363d825 Courtney Cavin 2016-05-06 1136 rc = -EFAULT; bdabad3e363d825 Courtney Cavin 2016-05-06 1137 break; bdabad3e363d825 Courtney Cavin 2016-05-06 1138 } bdabad3e363d825 Courtney Cavin 2016-05-06 1139 break; bdabad3e363d825 Courtney Cavin 2016-05-06 1140 case SIOCADDRT: bdabad3e363d825 Courtney Cavin 2016-05-06 1141 case SIOCDELRT: bdabad3e363d825 Courtney Cavin 2016-05-06 1142 case SIOCSIFADDR: bdabad3e363d825 Courtney Cavin 2016-05-06 1143 case SIOCGIFDSTADDR: bdabad3e363d825 Courtney Cavin 2016-05-06 1144 case SIOCSIFDSTADDR: bdabad3e363d825 Courtney Cavin 2016-05-06 1145 case SIOCGIFBRDADDR: bdabad3e363d825 Courtney Cavin 2016-05-06 1146 case SIOCSIFBRDADDR: bdabad3e363d825 Courtney Cavin 2016-05-06 1147 case SIOCGIFNETMASK: bdabad3e363d825 Courtney Cavin 2016-05-06 1148 case SIOCSIFNETMASK: bdabad3e363d825 Courtney Cavin 2016-05-06 1149 rc = -EINVAL; bdabad3e363d825 Courtney Cavin 2016-05-06 1150 break; bdabad3e363d825 Courtney Cavin 2016-05-06 1151 default: bdabad3e363d825 Courtney Cavin 2016-05-06 1152 rc = -ENOIOCTLCMD; bdabad3e363d825 Courtney Cavin 2016-05-06 1153 break; bdabad3e363d825 Courtney Cavin 2016-05-06 1154 } bdabad3e363d825 Courtney Cavin 2016-05-06 1155 bdabad3e363d825 Courtney Cavin 2016-05-06 1156 release_sock(sk); bdabad3e363d825 Courtney Cavin 2016-05-06 1157 bdabad3e363d825 Courtney Cavin 2016-05-06 1158 return rc; bdabad3e363d825 Courtney Cavin 2016-05-06 1159 } bdabad3e363d825 Courtney Cavin 2016-05-06 1160 :::::: The code at line 1119 was first introduced by commit :::::: bdabad3e363d825ddf9679dd431cca0b2c30f881 net: Add Qualcomm IPC router :::::: TO: Courtney Cavin <courtney.cavin(a)sonymobile.com&gt; :::::: CC: David S. Miller <davem(a)davemloft.net&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org