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Message-ID: <202111262338.GOesGUUr-lkp@intel.com>
Date:   Fri, 26 Nov 2021 23:08:58 +0800
From:   kernel test robot <lkp@...el.com>
To:     Luo bin <luobin9@...wei.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:618:22: sparse:
 sparse: cast to restricted __be64

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a4849f6000e29235a2707f22e39da6b897bb9543
commit: a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c hinic: add mailbox function support
date:   1 year, 7 months ago
config: x86_64-randconfig-s022-20211124 (https://download.01.org/0day-ci/archive/20211126/202111262338.GOesGUUr-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout a425b6e1c69ba907b72b737a4d44f8cfbc43ce3c
        # save the config file to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.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:618:22: sparse: sparse: cast to restricted __be64
>> 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:618:22: sparse: sparse: cast to restricted __be64
>> 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:618:22: sparse: sparse: cast to restricted __be64
>> 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:618:22: sparse: sparse: cast to restricted __be64
>> 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: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_mbox.c: note: in included file:
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     expected unsigned int val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     got restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     expected unsigned int val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     got restricted __be32 [usertype]
   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: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: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: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: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: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:256:16: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     expected unsigned int val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     got restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     expected unsigned int val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     got restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     expected unsigned int val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     got restricted __be32 [usertype]
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int val @@     got restricted __be32 [usertype] @@
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     expected unsigned int val
   drivers/net/ethernet/huawei/hinic/hinic_hw_if.h:256:16: sparse:     got restricted __be32 [usertype]

vim +618 drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c

   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-all@lists.01.org

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