[kbuild-all] Re: [Intel-gfx] [PATCH 3/3] drm/i915/perf: Map OA buffer to user space for gen12 performance query

Hi Umesh, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on drm-tip/drm-tip v5.8-rc5 next-20200717] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Umesh-Nerlige-Ramappa/drm-i915-p... base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-randconfig-r011-20200719 (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce (this is a W=1 build): # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 1642 | int i915_perf_mmap(struct file *file, struct vm_area_struct *vma) | ^~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/i915_perf_mmap +1642 drivers/gpu/drm/i915/i915_perf.c 1641 1643 { 1644 struct i915_perf_stream *stream = file->private_data; 1645 1646 if (vma->vm_end < vma->vm_start) 1647 return -EINVAL; 1648 1649 if ((vma->vm_end - vma->vm_start) > OA_BUFFER_SIZE) 1650 return -EINVAL; 1651 1652 if (vma->vm_flags & VM_WRITE) 1653 return -EINVAL; 1654 1655 if (vma->vm_pgoff != I915_PERF_OA_BUFFER_MMAP_OFFSET) 1656 return -EINVAL; 1657 1658 vma->vm_flags &= ~(VM_MAYWRITE | VM_MAYEXEC | VM_MAYSHARE); 1659 vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; 1660 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 1661 vma->vm_private_data = stream; 1662 vma->vm_ops = &vm_ops_oa; 1663 1664 return 0; 1665 } 1666 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org