9:44 a.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 66f4beaa6c1d28161f534471484b2daa2de1dce0
commit: 4e2e619f3c9e3c49859f085995554a53e9fc0e02 scsi: message: mptlan: Replace
one-element array with flexible-array member
date: 8 months ago
config: riscv-randconfig-s031-20211109 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4e2e619f3c9e3c49859f085995554a53e9fc0e02
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
drivers/message/fusion/mptlan.c:1172:21: sparse: sparse: cast to restricted __le16
> drivers/message/fusion/mptlan.c:1234:52: sparse: sparse:
incorrect type in assignment (different base types) @@ expected unsigned int
[usertype] TransactionContext @@ got restricted __le32 [usertype] @@
drivers/message/fusion/mptlan.c:1234:52: sparse: expected unsigned int [usertype]
TransactionContext
drivers/message/fusion/mptlan.c:1234:52: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:1238:46: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int [usertype] FlagsLength @@ got
restricted __le32 [usertype] @@
drivers/message/fusion/mptlan.c:1238:46: sparse: expected unsigned int [usertype]
FlagsLength
drivers/message/fusion/mptlan.c:1238:46: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:1242:46: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int [usertype] Low @@ got restricted
__le32 [usertype] @@
drivers/message/fusion/mptlan.c:1242:46: sparse: expected unsigned int [usertype]
Low
drivers/message/fusion/mptlan.c:1242:46: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:1244:55: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int [usertype] High @@ got restricted
__le32 [usertype] @@
drivers/message/fusion/mptlan.c:1244:55: sparse: expected unsigned int [usertype]
High
drivers/message/fusion/mptlan.c:1244:55: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:1258:38: sparse: sparse: invalid assignment: |=
drivers/message/fusion/mptlan.c:1258:38: sparse: left side has type unsigned int
drivers/message/fusion/mptlan.c:1258:38: sparse: right side has type restricted
__le32
drivers/message/fusion/mptlan.c:1260:39: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int [usertype] BucketCount @@ got
restricted __le32 [usertype] @@
drivers/message/fusion/mptlan.c:1260:39: sparse: expected unsigned int [usertype]
BucketCount
drivers/message/fusion/mptlan.c:1260:39: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:964:25: sparse: sparse: cast to restricted __le32
drivers/message/fusion/mptlan.c:969:9: sparse: sparse: cast to restricted __le16
drivers/message/fusion/mptlan.c:972:14: sparse: sparse: cast to restricted __le16
drivers/message/fusion/mptlan.c:976:15: sparse: sparse: cast to restricted __le32
drivers/message/fusion/mptlan.c:982:53: sparse: sparse: cast to restricted __le16
drivers/message/fusion/mptlan.c:986:18: sparse: sparse: cast to restricted __le32
drivers/message/fusion/mptlan.c:990:18: sparse: sparse: cast to restricted __le32
drivers/message/fusion/mptlan.c:1020:31: sparse: sparse: cast to restricted __le32
drivers/message/fusion/mptlan.c:612:9: sparse: sparse: cast to restricted __le16
drivers/message/fusion/mptlan.c:617:17: sparse: sparse: cast to restricted __le16
drivers/message/fusion/mptlan.c:641:23: sparse: sparse: cast to restricted __le32
drivers/message/fusion/mptlan.c:346:17: sparse: sparse: cast to restricted __le32
drivers/message/fusion/mptlan.c:1492:27: sparse: sparse: restricted __be16 degrades to
integer
drivers/message/fusion/mptlan.c:1529:29: sparse: sparse: incorrect type in return
expression (different base types) @@ expected unsigned short @@ got restricted
__be16 [usertype] ethertype @@
drivers/message/fusion/mptlan.c:1529:29: sparse: expected unsigned short
drivers/message/fusion/mptlan.c:1529:29: sparse: got restricted __be16 [usertype]
ethertype
drivers/message/fusion/mptlan.c:1532:16: sparse: sparse: incorrect type in return
expression (different base types) @@ expected unsigned short @@ got restricted
__be16 [usertype] @@
drivers/message/fusion/mptlan.c:1532:16: sparse: expected unsigned short
drivers/message/fusion/mptlan.c:1532:16: sparse: got restricted __be16 [usertype]
drivers/message/fusion/mptlan.c:745:36: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int [usertype] TransactionContext @@
got restricted __le32 [usertype] @@
drivers/message/fusion/mptlan.c:745:36: sparse: expected unsigned int [usertype]
TransactionContext
drivers/message/fusion/mptlan.c:745:36: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:753:39: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int @@ got restricted __le32
[usertype] @@
drivers/message/fusion/mptlan.c:753:39: sparse: expected unsigned int
drivers/message/fusion/mptlan.c:753:39: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:756:39: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int @@ got restricted __le32
[usertype] @@
drivers/message/fusion/mptlan.c:756:39: sparse: expected unsigned int
drivers/message/fusion/mptlan.c:756:39: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:766:30: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int [usertype] FlagsLength @@ got
restricted __le32 [usertype] @@
drivers/message/fusion/mptlan.c:766:30: sparse: expected unsigned int [usertype]
FlagsLength
drivers/message/fusion/mptlan.c:766:30: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:775:30: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int [usertype] Low @@ got restricted
__le32 [usertype] @@
drivers/message/fusion/mptlan.c:775:30: sparse: expected unsigned int [usertype]
Low
drivers/message/fusion/mptlan.c:775:30: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:777:39: sparse: sparse: incorrect type in assignment
(different base types) @@ expected unsigned int [usertype] High @@ got restricted
__le32 [usertype] @@
drivers/message/fusion/mptlan.c:777:39: sparse: expected unsigned int [usertype]
High
drivers/message/fusion/mptlan.c:777:39: sparse: got restricted __le32 [usertype]
drivers/message/fusion/mptlan.c:784:9: sparse: sparse: cast to restricted __le32
drivers/message/fusion/mptlan.c:819:23: sparse: sparse: incorrect type in assignment
(different base types) @@ expected restricted __be16 [usertype] protocol @@ got
unsigned short @@
drivers/message/fusion/mptlan.c:819:23: sparse: expected restricted __be16
[usertype] protocol
drivers/message/fusion/mptlan.c:819:23: sparse: got unsigned short
drivers/message/fusion/mptlan.c:919:23: sparse: sparse: cast to restricted __le32
vim +1234 drivers/message/fusion/mptlan.c
1134
1135 static void
1136 mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv)
1137 {
1138 struct net_device *dev = priv->dev;
1139 MPT_ADAPTER *mpt_dev = priv->mpt_dev;
1140 MPT_FRAME_HDR *mf;
1141 LANReceivePostRequest_t *pRecvReq;
1142 SGETransaction32_t *pTrans;
1143 SGESimple64_t *pSimple;
1144 struct sk_buff *skb;
1145 dma_addr_t dma;
1146 u32 curr, buckets, count, max;
1147 u32 len = (dev->mtu + dev->hard_header_len + 4);
1148 unsigned long flags;
1149 int i;
1150
1151 curr = atomic_read(&priv->buckets_out);
1152 buckets = (priv->max_buckets_out - curr);
1153
1154 dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, Start_buckets = %u, buckets_out =
%u\n",
1155 IOC_AND_NETDEV_NAMES_s_s(dev),
1156 __func__, buckets, curr));
1157
1158 max = (mpt_dev->req_sz - MPT_LAN_RECEIVE_POST_REQUEST_SIZE) /
1159 (sizeof(SGETransaction32_t) + sizeof(SGESimple64_t));
1160
1161 while (buckets) {
1162 mf = mpt_get_msg_frame(LanCtx, mpt_dev);
1163 if (mf == NULL) {
1164 printk (KERN_ERR "%s: Unable to alloc request frame\n",
1165 __func__);
1166 dioprintk((KERN_ERR "%s: %u buckets remaining\n",
1167 __func__, buckets));
1168 goto out;
1169 }
1170 pRecvReq = (LANReceivePostRequest_t *) mf;
1171
1172 i = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1173 mpt_dev->RequestNB[i] = 0;
1174 count = buckets;
1175 if (count > max)
1176 count = max;
1177
1178 pRecvReq->Function = MPI_FUNCTION_LAN_RECEIVE;
1179 pRecvReq->ChainOffset = 0;
1180 pRecvReq->MsgFlags = 0;
1181 pRecvReq->PortNumber = priv->pnum;
1182
1183 pTrans = (SGETransaction32_t *) pRecvReq->SG_List;
1184 pSimple = NULL;
1185
1186 for (i = 0; i < count; i++) {
1187 int ctx;
1188
1189 spin_lock_irqsave(&priv->rxfidx_lock, flags);
1190 if (priv->mpt_rxfidx_tail < 0) {
1191 printk (KERN_ERR "%s: Can't alloc context\n",
1192 __func__);
1193 spin_unlock_irqrestore(&priv->rxfidx_lock,
1194 flags);
1195 break;
1196 }
1197
1198 ctx = priv->mpt_rxfidx[priv->mpt_rxfidx_tail--];
1199
1200 skb = priv->RcvCtl[ctx].skb;
1201 if (skb && (priv->RcvCtl[ctx].len != len)) {
1202 pci_unmap_single(mpt_dev->pcidev,
1203 priv->RcvCtl[ctx].dma,
1204 priv->RcvCtl[ctx].len,
1205 PCI_DMA_FROMDEVICE);
1206 dev_kfree_skb(priv->RcvCtl[ctx].skb);
1207 skb = priv->RcvCtl[ctx].skb = NULL;
1208 }
1209
1210 if (skb == NULL) {
1211 skb = dev_alloc_skb(len);
1212 if (skb == NULL) {
1213 printk (KERN_WARNING
1214 MYNAM "/%s: Can't alloc skb\n",
1215 __func__);
1216 priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx;
1217 spin_unlock_irqrestore(&priv->rxfidx_lock, flags);
1218 break;
1219 }
1220
1221 dma = pci_map_single(mpt_dev->pcidev, skb->data,
1222 len, PCI_DMA_FROMDEVICE);
1223
1224 priv->RcvCtl[ctx].skb = skb;
1225 priv->RcvCtl[ctx].dma = dma;
1226 priv->RcvCtl[ctx].len = len;
1227 }
1228
1229 spin_unlock_irqrestore(&priv->rxfidx_lock, flags);
1230
1231 pTrans->ContextSize = sizeof(u32);
1232 pTrans->DetailsLength = 0;
1233 pTrans->Flags = 0;
1234 pTrans->TransactionContext = cpu_to_le32(ctx);
1235
1236 pSimple = (SGESimple64_t *) pTrans->TransactionDetails;
1237
1238 pSimple->FlagsLength = cpu_to_le32(
1239 ((MPI_SGE_FLAGS_END_OF_BUFFER |
1240 MPI_SGE_FLAGS_SIMPLE_ELEMENT |
1241 MPI_SGE_FLAGS_64_BIT_ADDRESSING) << MPI_SGE_FLAGS_SHIFT) | len);
1242 pSimple->Address.Low = cpu_to_le32((u32) priv->RcvCtl[ctx].dma);
1243 if (sizeof(dma_addr_t) > sizeof(u32))
1244 pSimple->Address.High = cpu_to_le32((u32) ((u64) priv->RcvCtl[ctx].dma
>> 32));
1245 else
1246 pSimple->Address.High = 0;
1247
1248 pTrans = (SGETransaction32_t *) (pSimple + 1);
1249 }
1250
1251 if (pSimple == NULL) {
1252 /**/ printk (KERN_WARNING MYNAM "/%s: No buckets posted\n",
1253 /**/ __func__);
1254 mpt_free_msg_frame(mpt_dev, mf);
1255 goto out;
1256 }
1257
1258 pSimple->FlagsLength |= cpu_to_le32(MPI_SGE_FLAGS_END_OF_LIST <<
MPI_SGE_FLAGS_SHIFT);
1259
1260 pRecvReq->BucketCount = cpu_to_le32(i);
1261
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org