drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:618:22: sparse: sparse: cast to restricted __be64

From: kernel test robot
Date: Sun Nov 28 2021 - 04:48:26 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3498e7f2bb415e447354a3debef6738d9655768c
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/20211128/202111281707.Z1jcCuXf-lkp@xxxxxxxxx/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@xxxxxxxxx>

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@xxxxxxxxxxxx

Next message: Sergey Shtylyov: "Re: [PATCH AUTOSEL 5.15 23/39] net: usb: r8152: Add MAC passthrough support for more Lenovo Docks"
Previous message: Nanyong Sun: "Re: [BUG] use-after-free in ksm_might_need_to_copy with KSM and swap"
In reply to: kernel test robot: "drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:618:22: sparse: sparse: cast to restricted __be64"
Next in thread: kernel test robot: "drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:618:22: sparse: sparse: cast to restricted __be64"
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