tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   9fa88c5d3f5eae3e68ef20d226c3f13e21490668
commit: a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c hinic: add mailbox function 
support
date:   6 weeks ago
config: arm64-randconfig-s032-20200607 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-247-gcadbd124-dirty
        git checkout a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c
        # save the attached .config to linux build tree
        make W=1 C=1 ARCH=arm64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:543:54: sparse: sparse: 
>> incorrect type in argument 2 (different address spaces) @@     expected void 
>> volatile [noderef] <asn:2> *addr @@     got unsigned char [usertype] * @@
>> drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:543:54: sparse:     
>> expected void volatile [noderef] <asn:2> *addr
>> drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:543:54: sparse:     got 
>> unsigned char [usertype] *
   drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:566:58: sparse: sparse: 
incorrect type in argument 2 (different address spaces) @@     expected void 
volatile [noderef] <asn:2> *addr @@     got unsigned char [usertype] * @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:566:58: sparse:     
expected void volatile [noderef] <asn:2> *addr
   drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:566:58: sparse:     got 
unsigned char [usertype] *
   drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:601:6: sparse: sparse: 
symbol 'dump_mox_reg' was not declared. Should it be static?
>> drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:618:22: sparse: sparse: 
>> cast to restricted __be64
>> drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:1057:25: sparse: sparse: 
>> incorrect type in assignment (different address spaces) @@     expected 
>> unsigned char [usertype] *data @@     got void [noderef] <asn:2> * @@
>> drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:1057:25: sparse:     
>> expected unsigned char [usertype] *data
>> drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:1057:25: sparse:     got 
>> void [noderef] <asn:2> *
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: 
incorrect type in argument 1 (different base types) @@     expected unsigned 
int [usertype] val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     expected 
unsigned int [usertype] val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     got 
restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: 
incorrect type in argument 1 (different base types) @@     expected unsigned 
int [usertype] val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     expected 
unsigned int [usertype] val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     got 
restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:250:16: sparse: sparse: cast 
to restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:250:16: sparse: sparse: cast 
to restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: 
incorrect type in argument 1 (different base types) @@     expected unsigned 
int [usertype] val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     expected 
unsigned int [usertype] val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     got 
restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: 
incorrect type in argument 1 (different base types) @@     expected unsigned 
int [usertype] val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     expected 
unsigned int [usertype] val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     got 
restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: 
incorrect type in argument 1 (different base types) @@     expected unsigned 
int [usertype] val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     expected 
unsigned int [usertype] val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     got 
restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: 
incorrect type in argument 1 (different base types) @@     expected unsigned 
int [usertype] val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     expected 
unsigned int [usertype] val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse:     got 
restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:9: sparse: sparse: cast 
from restricted __be32

vim +543 drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c

   535  
   536  static void mbox_copy_header(struct hinic_hwdev *hwdev,
   537                               struct hinic_send_mbox *mbox, u64 *header)
   538  {
   539          u32 i, idx_max = MBOX_HEADER_SZ / sizeof(u32);
   540          u32 *data = (u32 *)header;
   541  
   542          for (i = 0; i < idx_max; i++)
 > 543                  __raw_writel(*(data + i), mbox->data + i * sizeof(u32));
   544  }
   545  
   546  static void mbox_copy_send_data(struct hinic_hwdev *hwdev,
   547                                  struct hinic_send_mbox *mbox, void *seg,
   548                                  u16 seg_len)
   549  {
   550          u8 mbox_max_buf[MBOX_SEG_LEN] = {0};
   551          u32 data_len, chk_sz = sizeof(u32);
   552          u32 *data = seg;
   553          u32 i, idx_max;
   554  
   555          /* The mbox message should be aligned in 4 bytes. */
   556          if (seg_len % chk_sz) {
   557                  memcpy(mbox_max_buf, seg, seg_len);
   558                  data = (u32 *)mbox_max_buf;
   559          }
   560  
   561          data_len = seg_len;
   562          idx_max = ALIGN(data_len, chk_sz) / chk_sz;
   563  
   564          for (i = 0; i < idx_max; i++)
   565                  __raw_writel(*(data + i),
   566                               mbox->data + MBOX_HEADER_SZ + i * 
sizeof(u32));
   567  }
   568  
   569  static void write_mbox_msg_attr(struct hinic_mbox_func_to_func 
*func_to_func,
   570                                  u16 dst_func, u16 dst_aeqn, u16 seg_len,
   571                                  int poll)
   572  {
   573          u16 rsp_aeq = (dst_aeqn == 0) ? 0 : HINIC_MBOX_RSP_AEQN;
   574          u32 mbox_int, mbox_ctrl;
   575  
   576          mbox_int = HINIC_MBOX_INT_SET(dst_func, DST_FUNC) |
   577                     HINIC_MBOX_INT_SET(dst_aeqn, DST_AEQN) |
   578                     HINIC_MBOX_INT_SET(rsp_aeq, SRC_RESP_AEQN) |
   579                     HINIC_MBOX_INT_SET(NO_DMA_ATTRIBUTE_VAL, STAT_DMA) |
   580                     HINIC_MBOX_INT_SET(ALIGN(MBOX_SEG_LEN + 
MBOX_HEADER_SZ +
   581                                        MBOX_INFO_SZ, MBOX_SEG_LEN_ALIGN) 
>> 2,
   582                                        TX_SIZE) |
   583                     HINIC_MBOX_INT_SET(STRONG_ORDER, STAT_DMA_SO_RO) |
   584                     HINIC_MBOX_INT_SET(WRITE_BACK, WB_EN);
   585  
   586          hinic_hwif_write_reg(func_to_func->hwif,
   587                               HINIC_FUNC_CSR_MAILBOX_INT_OFFSET_OFF, 
mbox_int);
   588  
   589          wmb(); /* writing the mbox int attributes */
   590          mbox_ctrl = HINIC_MBOX_CTRL_SET(TX_NOT_DONE, TX_STATUS);
   591  
   592          if (poll)
   593                  mbox_ctrl |= HINIC_MBOX_CTRL_SET(NOT_TRIGGER, 
TRIGGER_AEQE);
   594          else
   595                  mbox_ctrl |= HINIC_MBOX_CTRL_SET(TRIGGER, TRIGGER_AEQE);
   596  
   597          hinic_hwif_write_reg(func_to_func->hwif,
   598                               HINIC_FUNC_CSR_MAILBOX_CONTROL_OFF, 
mbox_ctrl);
   599  }
   600  
   601  void dump_mox_reg(struct hinic_hwdev *hwdev)
   602  {
   603          u32 val;
   604  
   605          val = hinic_hwif_read_reg(hwdev->hwif,
   606                                    HINIC_FUNC_CSR_MAILBOX_CONTROL_OFF);
   607          dev_err(&hwdev->hwif->pdev->dev, "Mailbox control reg: 0x%x\n", 
val);
   608  
   609          val = hinic_hwif_read_reg(hwdev->hwif,
   610                                    
HINIC_FUNC_CSR_MAILBOX_INT_OFFSET_OFF);
   611          dev_err(&hwdev->hwif->pdev->dev, "Mailbox interrupt offset: 
0x%x\n",
   612                  val);
   613  }
   614  
   615  static u16 get_mbox_status(struct hinic_send_mbox *mbox)
   616  {
   617          /* write back is 16B, but only use first 4B */
 > 618          u64 wb_val = be64_to_cpu(*mbox->wb_status);
   619  
   620          rmb(); /* verify reading before check */
   621  
   622          return (u16)(wb_val & MBOX_WB_STATUS_ERRCODE_MASK);
   623  }
   624  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

Attachment: .config.gz
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