[kbuild-all] [android-common:android12-5.10 3/5] drivers/dma-buf/heaps/page_pool.c:242:5: warning: no previous prototype for 'dmabuf_page_pool_init_shrinker'

tree: https://android.googlesource.com/kernel/common android12-5.10 head: d50b67ac7551b81ae82e70c6f2811073ba3575ba commit: 23762f02e172f146ccd160e36ed43483f2304aaf [3/5] ANDROID: dma-buf: system_heap: Add pagepool support to system heap config: i386-randconfig-s002-20210209 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-215-g0fb77bb6-dirty git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android12-5.10 git checkout 23762f02e172f146ccd160e36ed43483f2304aaf # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 242 | int dmabuf_page_pool_init_shrinker(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "sparse warnings: (new ones prefixed by >>)" Please review and possibly fold the followup patch. vim +/dmabuf_page_pool_init_shrinker +242 drivers/dma-buf/heaps/page_pool.c e7dac4c3231c0e John Stultz 2020-10-02 234 e7dac4c3231c0e John Stultz 2020-10-02 @235 struct shrinker pool_shrinker = { e7dac4c3231c0e John Stultz 2020-10-02 236 .count_objects = dmabuf_page_pool_shrink_count, e7dac4c3231c0e John Stultz 2020-10-02 237 .scan_objects = dmabuf_page_pool_shrink_scan, e7dac4c3231c0e John Stultz 2020-10-02 238 .seeks = DEFAULT_SEEKS, e7dac4c3231c0e John Stultz 2020-10-02 239 .batch = 0, e7dac4c3231c0e John Stultz 2020-10-02 240 }; e7dac4c3231c0e John Stultz 2020-10-02 241 e7dac4c3231c0e John Stultz 2020-10-02 @242 int dmabuf_page_pool_init_shrinker(void) :::::: The code at line 242 was first introduced by commit :::::: e7dac4c3231c0e8adeef8dbb732b2cde7c162b14 ANDROID: dma-buf: heaps: Add a shrinker controlled page pool :::::: TO: John Stultz <john.stultz(a)linaro.org&gt; :::::: CC: Hridya Valsaraju <hridya(a)google.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org _______________________________________________ kbuild mailing list -- kbuild(a)lists.01.org To unsubscribe send an email to kbuild-leave(a)lists.01.org