Hi Maarten, I love your patch! Yet something to improve: [auto build test ERROR on drm-tip/drm-tip] [cannot apply to drm-intel/for-linux-next tip/perf/core v5.7-rc3 next-20200430] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Maarten-Lankhorst/perf-core-Only... base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: i386-debian-10.3 (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from arch/x86/include/asm/bug.h:83:0, from include/linux/bug.h:5, from include/linux/cpumask.h:14, from arch/x86/include/asm/cpumask.h:5, from arch/x86/include/asm/msr.h:11, from arch/x86/include/asm/processor.h:22, from include/linux/mutex.h:19, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/of.h:17, from include/linux/irqdomain.h:35, from include/linux/acpi.h:13, from drivers/gpu/drm/i915/i915_drv.c:30: drivers/gpu/drm/i915/i915_vma.h: In function 'i915_vma_pin': #define dma_resv_held(obj) lockdep_is_held(&(obj)->lock.base) ^ include/asm-generic/bug.h:151:27: note: in definition of macro 'WARN_ONCE' int __ret_warn_once = !!(condition); \ ^~~~~~~~~ drivers/gpu/drm/i915/i915_vma.h:245:2: note: in expansion of macro 'WARN_ON_ONCE' WARN_ON_ONCE(vma->resv && dma_resv_held(vma->resv)); ^~~~~~~~~~~~ drivers/gpu/drm/i915/i915_vma.h:245:28: note: in expansion of macro 'dma_resv_held' WARN_ON_ONCE(vma->resv && dma_resv_held(vma->resv)); ^~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +80 include/linux/dma-resv.h 786d7257e537da0 include/linux/reservation.h Maarten Lankhorst 2013-06-27 79 52791eeec1d9f4a include/linux/dma-resv.h Christian König 2019-08-11 @80 #define dma_resv_held(obj) lockdep_is_held(&(obj)->lock.base) 52791eeec1d9f4a include/linux/dma-resv.h Christian König 2019-08-11 81 #define dma_resv_assert_held(obj) lockdep_assert_held(&(obj)->lock.base) 04a5faa8cbe5a8e include/linux/reservation.h Maarten Lankhorst 2014-07-01 82 :::::: The code at line 80 was first introduced by commit :::::: 52791eeec1d9f4a7e7fe08aaba0b1553149d93bc dma-buf: rename reservation_object to dma_resv :::::: TO: Christian König <christian.koenig(a)amd.com&gt; :::::: CC: Christian König <christian.koenig(a)amd.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org