[android-common:android14-kiwi-6.1 181/181] drivers/virtio/virtio_pvclock.c:49:6: warning: no previous prototype for function 'update_suspend_time'

[kernel test robot <lkp@intel.com>]

Hi Colin,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android14-kiwi-6.1
head:   1517b793772a02ed13258dd27cd6ac22fe27c5a6
commit: bf3f6f01039f7f03350da296935c1f2e2fca7550 [181/181] ANDROID: virtio: virtio_pvclock: initial driver impl
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20260712/202607120325.OHjPyjlG-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260712/202607120325.OHjPyjlG-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202607120325.OHjPyjlG-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from <built-in>:3:
   In file included from include/linux/compiler_types.h:94:
   include/linux/compiler-clang.h:33:9: warning: '__SANITIZE_ADDRESS__' macro redefined [-Wmacro-redefined]
      33 | #define __SANITIZE_ADDRESS__
         |         ^
   <built-in>:353:9: note: previous definition is here
     353 | #define __SANITIZE_ADDRESS__ 1
         |         ^
>> drivers/virtio/virtio_pvclock.c:49:6: warning: no previous prototype for function 'update_suspend_time' [-Wmissing-prototypes]
      49 | void update_suspend_time(struct work_struct *work)
         |      ^
   drivers/virtio/virtio_pvclock.c:49:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
      49 | void update_suspend_time(struct work_struct *work)
         | ^
         | static 
   2 warnings generated.


vim +/update_suspend_time +49 drivers/virtio/virtio_pvclock.c

    48	
  > 49	void update_suspend_time(struct work_struct *work)
    50	{
    51		u64 suspend_ns, suspend_time_delta = 0;
    52		struct timespec64 inject_time;
    53		struct virtio_pvclock *vp;
    54	
    55		vp = container_of(work, struct virtio_pvclock,
    56				  update_suspend_time_work);
    57	
    58		virtio_cread(vp->vdev, struct virtio_pvclock_config, suspend_time_ns,
    59			     &suspend_ns);
    60	
    61		mutex_lock(&vp->inject_suspend_lock);
    62		if (suspend_ns > vp->injected_suspend_ns) {
    63			suspend_time_delta = suspend_ns - vp->injected_suspend_ns;
    64			vp->injected_suspend_ns = suspend_ns;
    65		}
    66		mutex_unlock(&vp->inject_suspend_lock);
    67	
    68		if (suspend_time_delta == 0) {
    69			dev_err(&vp->vdev->dev,
    70				"%s: suspend_time_ns is less than injected_suspend_ns\n",
    71				__func__);
    72			return;
    73		}
    74	
    75		inject_time = ns_to_timespec64(suspend_time_delta);
    76	
    77		timekeeping_inject_sleeptime64(&inject_time);
    78	
    79		dev_info(&vp->vdev->dev, "injected sleeptime: %llu ns\n",
    80			 suspend_time_delta);
    81	}
    82	

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https://github.com/intel/lkp-tests/wiki