Hi Longfang,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on v5.12-rc6 next-20210408]
[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/Longfang-Liu/USB-ehci-fix-the-no-SRBN-register-problem/20210408-215249
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: riscv-randconfig-r025-20210408 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 56ea2e2fdd691136d5e6631fa0e447173694b82c)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://github.com/0day-ci/linux/commit/01b93fbbf8fb6137c7779062232c0fe8c1592940
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Longfang-Liu/USB-ehci-fix-the-no-SRBN-register-problem/20210408-215249
        git checkout 01b93fbbf8fb6137c7779062232c0fe8c1592940
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv 

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

All warnings (new ones prefixed by >>):

>> drivers/usb/host/ehci-pci.c:57:3: warning: incompatible pointer to integer conversion initializing 'u16' (aka 'unsigned short') with an expression of type 'void *' [-Wint-conversion]
           {NULL, NULL}
            ^~~~
   include/linux/stddef.h:8:14: note: expanded from macro 'NULL'
   #define NULL ((void *)0)
                ^~~~~~~~~~~
   drivers/usb/host/ehci-pci.c:57:9: warning: incompatible pointer to integer conversion initializing 'u16' (aka 'unsigned short') with an expression of type 'void *' [-Wint-conversion]
           {NULL, NULL}
                  ^~~~
   include/linux/stddef.h:8:14: note: expanded from macro 'NULL'
   #define NULL ((void *)0)
                ^~~~~~~~~~~
   2 warnings generated.


vim +57 drivers/usb/host/ehci-pci.c

    49	
    50	static const struct usb_nosbrn_whitelist_entry {
    51		u16 vendor;
    52		u16 device;
    53	} usb_nosbrn_whitelist[] = {
    54		/* STMICRO ConneXT has no sbrn register */
    55		{PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_USB_HOST},
    56		/* End of list */
  > 57		{NULL, NULL}
    58	};
    59	

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