Re: [PATCH 5/5] mm: Change gfp_t to unsigned long

[kernel test robot]

Hi Brendan,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 8a30aeb0d1b4e4aaf7f7bae72f20f2ae75385ccb]

url:    https://github.com/intel-lab-lkp/linux/commits/Brendan-Jackman/drm-managed-Use-special-gfp_t-format-specifier/20260322-145930
base:   8a30aeb0d1b4e4aaf7f7bae72f20f2ae75385ccb
patch link:    https://lore.kernel.org/r/20260319-gfp64-v1-5-2c73b8d42b7f%40google.com
patch subject: [PATCH 5/5] mm: Change gfp_t to unsigned long
config: arm-randconfig-r131-20260322 (https://download.01.org/0day-ci/archive/20260323/202603230210.EgOkfYR4-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 15.2.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260323/202603230210.EgOkfYR4-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603230210.EgOkfYR4-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from include/asm-generic/bug.h:31,
                    from arch/arm/include/asm/bug.h:60,
                    from include/linux/bug.h:5,
                    from include/linux/instrumented.h:10,
                    from include/linux/atomic/atomic-instrumented.h:17,
                    from include/linux/atomic.h:82,
                    from include/asm-generic/bitops/lock.h:5,
                    from arch/arm/include/asm/bitops.h:245,
                    from include/linux/bitops.h:67,
                    from include/linux/kernel.h:23,
                    from include/linux/clk.h:13,
                    from drivers/usb/gadget/udc/atmel_usba_udc.c:7:
   drivers/usb/gadget/udc/atmel_usba_udc.c: In function 'usba_ep_alloc_request':
>> include/linux/kern_levels.h:5:25: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'gfp_t' {aka 'long unsigned int'} [-Wformat=]
       5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
         |                         ^~~~~~
   include/linux/printk.h:134:25: note: in definition of macro 'no_printk'
     134 |                 _printk(fmt, ##__VA_ARGS__);            \
         |                         ^~~
   include/linux/kern_levels.h:15:25: note: in expansion of macro 'KERN_SOH'
      15 | #define KERN_DEBUG      KERN_SOH "7"    /* debug-level messages */
         |                         ^~~~~~~~
   include/linux/printk.h:641:19: note: in expansion of macro 'KERN_DEBUG'
     641 |         no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
         |                   ^~~~~~~~~~
   drivers/usb/gadget/udc/atmel_usba_udc.h:233:25: note: in expansion of macro 'pr_debug'
     233 |                         pr_debug("udc: " fmt, ## __VA_ARGS__);  \
         |                         ^~~~~~~~
   drivers/usb/gadget/udc/atmel_usba_udc.c:703:9: note: in expansion of macro 'DBG'
     703 |         DBG(DBG_GADGET, "ep_alloc_request: %p, 0x%x\n", _ep, gfp_flags);
         |         ^~~
--
   In file included from include/asm-generic/bug.h:31,
                    from arch/arm/include/asm/bug.h:60,
                    from include/linux/bug.h:5,
                    from include/linux/instrumented.h:10,
                    from include/linux/atomic/atomic-instrumented.h:17,
                    from include/linux/atomic.h:82,
                    from include/asm-generic/bitops/lock.h:5,
                    from arch/arm/include/asm/bitops.h:245,
                    from include/linux/bitops.h:67,
                    from include/linux/kernel.h:23,
                    from include/linux/clk.h:13,
                    from atmel_usba_udc.c:7:
   atmel_usba_udc.c: In function 'usba_ep_alloc_request':
>> include/linux/kern_levels.h:5:25: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'gfp_t' {aka 'long unsigned int'} [-Wformat=]
       5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
         |                         ^~~~~~
   include/linux/printk.h:134:25: note: in definition of macro 'no_printk'
     134 |                 _printk(fmt, ##__VA_ARGS__);            \
         |                         ^~~
   include/linux/kern_levels.h:15:25: note: in expansion of macro 'KERN_SOH'
      15 | #define KERN_DEBUG      KERN_SOH "7"    /* debug-level messages */
         |                         ^~~~~~~~
   include/linux/printk.h:641:19: note: in expansion of macro 'KERN_DEBUG'
     641 |         no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
         |                   ^~~~~~~~~~
   atmel_usba_udc.h:233:25: note: in expansion of macro 'pr_debug'
     233 |                         pr_debug("udc: " fmt, ## __VA_ARGS__);  \
         |                         ^~~~~~~~
   atmel_usba_udc.c:703:9: note: in expansion of macro 'DBG'
     703 |         DBG(DBG_GADGET, "ep_alloc_request: %p, 0x%x\n", _ep, gfp_flags);
         |         ^~~


vim +5 include/linux/kern_levels.h

314ba3520e513a Joe Perches 2012-07-30  4  
04d2c8c83d0e3a Joe Perches 2012-07-30 @5  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c83d0e3a Joe Perches 2012-07-30  6  #define KERN_SOH_ASCII	'\001'
04d2c8c83d0e3a Joe Perches 2012-07-30  7  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki