linux-kernel - Re: [PATCH 7/8] VMCI: dma dg: add support for DMA datagrams sends

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Message-ID: <202202031004.SmRs3Z6M-lkp@intel.com>
Date:   Thu, 3 Feb 2022 10:39:45 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jorgen Hansen <jhansen@...are.com>, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Cc:     kbuild-all@...ts.01.org, gregkh@...uxfoundation.org,
        pv-drivers@...are.com, Jorgen Hansen <jhansen@...are.com>,
        Vishnu Dasa <vdasa@...are.com>
Subject: Re: [PATCH 7/8] VMCI: dma dg: add support for DMA datagrams sends

Hi Jorgen,

I love your patch! Perhaps something to improve:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on linux/master linus/master v5.17-rc2 next-20220202]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Jorgen-Hansen/VMCI-dma-dg-Add-support-for-DMA-datagrams/20220202-230034
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 7ab004dbcbee38b8a70798835d3ffcd97a985a5e
config: i386-randconfig-s002 (https://download.01.org/0day-ci/archive/20220203/202202031004.SmRs3Z6M-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://github.com/0day-ci/linux/commit/303777a2a8daa11d529827395318bb698ddee57e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Jorgen-Hansen/VMCI-dma-dg-Add-support-for-DMA-datagrams/20220202-230034
        git checkout 303777a2a8daa11d529827395318bb698ddee57e
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/misc/vmw_vmci/

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/misc/vmw_vmci/vmci_guest.c:106:45: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got char * @@
   drivers/misc/vmw_vmci/vmci_guest.c:106:45: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/misc/vmw_vmci/vmci_guest.c:106:45: sparse:     got char *
   drivers/misc/vmw_vmci/vmci_guest.c:103:14: sparse: sparse: symbol 'vmci_read_reg' was not declared. Should it be static?
   drivers/misc/vmw_vmci/vmci_guest.c:113:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got char * @@
   drivers/misc/vmw_vmci/vmci_guest.c:113:44: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/misc/vmw_vmci/vmci_guest.c:113:44: sparse:     got char *
   drivers/misc/vmw_vmci/vmci_guest.c:110:6: sparse: sparse: symbol 'vmci_write_reg' was not declared. Should it be static?
>> drivers/misc/vmw_vmci/vmci_guest.c:118:5: sparse: sparse: symbol 'vmci_write_data' was not declared. Should it be static?
   drivers/misc/vmw_vmci/vmci_guest.c:554:27: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected char *mmio_base @@     got void [noderef] __iomem * @@
   drivers/misc/vmw_vmci/vmci_guest.c:554:27: sparse:     expected char *mmio_base
   drivers/misc/vmw_vmci/vmci_guest.c:554:27: sparse:     got void [noderef] __iomem *
   drivers/misc/vmw_vmci/vmci_guest.c:909:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem * @@     got char *mmio_base @@
   drivers/misc/vmw_vmci/vmci_guest.c:909:43: sparse:     expected void [noderef] __iomem *
   drivers/misc/vmw_vmci/vmci_guest.c:909:43: sparse:     got char *mmio_base

Please review and possibly fold the followup patch.

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