[hch-misc:sockptr /46] include/linux/kern_levels.h:5:18: warning: format '%p' expects argument of type 'void but argument 6 has type 'sockptr_t' {aka 'union <anonymous>'}

[hch-misc:sockptr /46] include/linux/kern_levels.h:5:18: warning: format '%p' expects argument of type 'void but argument 6 has type 'sockptr_t' {aka 'union <anonymous>'}

[kernel test robot]

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tree:   git://git.infradead.org/users/hch/misc.git sockptr
head:   65b86d5658a5bbb84fe436c27cf60a6efb6b5303
commit: 6e97573fbdf946abb3ec30cabcc9aba14284aa3e [/46] net: pass a sockptr_t into ->setsockopt
config: x86_64-rhel-7.6-kselftests (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce (this is a W=1 build):
        git checkout 6e97573fbdf946abb3ec30cabcc9aba14284aa3e
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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 >>):

   In file included from include/linux/printk.h:7,
                    from include/linux/kernel.h:15,
                    from include/linux/uio.h:8,
                    from include/linux/socket.h:8,
                    from include/linux/mISDNif.h:24,
                    from drivers/isdn/mISDN/socket.c:9:
   drivers/isdn/mISDN/socket.c: In function 'data_sock_setsockopt':
>> include/linux/kern_levels.h:5:18: warning: format '%p' expects argument of type 'void *', but argument 6 has type 'sockptr_t' {aka 'union <anonymous>'} [-Wformat=]
       5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
         |                  ^~~~~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
      15 | #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
         |                    ^~~~~~~~
   drivers/isdn/mISDN/socket.c:410:10: note: in expansion of macro 'KERN_DEBUG'
     410 |   printk(KERN_DEBUG "%s(%p, %d, %x, %p, %d)\n", __func__, sock,
         |          ^~~~~~~~~~
   drivers/isdn/mISDN/socket.c:410:38: note: format string is defined here
     410 |   printk(KERN_DEBUG "%s(%p, %d, %x, %p, %d)\n", __func__, sock,
         |                                     ~^
         |                                      |
         |                                      void *

git remote add hch-misc git://git.infradead.org/users/hch/misc.git
git remote update hch-misc
git checkout 6e97573fbdf946abb3ec30cabcc9aba14284aa3e
vim +5 include/linux/kern_levels.h

314ba3520e513a7 Joe Perches 2012-07-30  4  
04d2c8c83d0e3ac Joe Perches 2012-07-30 @5  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c83d0e3ac Joe Perches 2012-07-30  6  #define KERN_SOH_ASCII	'\001'
04d2c8c83d0e3ac Joe Perches 2012-07-30  7  

:::::: The code at line 5 was first introduced by commit
:::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_<LEVEL> to a 2 byte pattern

:::::: TO: Joe Perches <joe@perches.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

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

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