tree: git://anongit.freedesktop.org/drm-intel drm-intel-gt-next head: 13c2ceb6addb6b14468e09b75832c98909eed8e7 commit: 88be9a0a06b73ecd85a688a7c174c941e9692e92 [2/8] drm/i915/ttm: add ttm_buddy_man config: x86_64-randconfig-a012-20210618 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add drm-intel git://anongit.freedesktop.org/drm-intel git fetch --no-tags drm-intel drm-intel-gt-next git checkout 88be9a0a06b73ecd85a688a7c174c941e9692e92 # 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 drivers/gpu/drm/i915/i915_buddy.c:411:

...

drivers/gpu/drm/i915/selftests/i915_buddy.c:777:5: warning: no previous prototype for 'i915_buddy_mock_selftests' [-Wmissing-prototypes]

777 | int i915_buddy_mock_selftests(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~

vim +/i915_buddy_mock_selftests +777 drivers/gpu/drm/i915/selftests/i915_buddy.c

776

777 int i915_buddy_mock_selftests(void)

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