Hi Dave, After merging the drm tree, today's linux-next build (x86_64 allmodconfig) failed like this: drivers/gpu/drm/amd/amdkfd/kfd_device.c: In function 'kgd2kfd_device_init': drivers/gpu/drm/amd/amdkfd/kfd_device.c:193:11: error: 'max_num_of_processes' undeclared (first use in this function) size += (max_num_of_processes * sizeof(struct pm4_map_process) + ^ drivers/gpu/drm/amd/amdkfd/kfd_device.c:193:11: note: each undeclared identifier is reported only once for each function it appears in drivers/gpu/drm/amd/amdkfd/kfd_device.c:194:26: error: 'max_num_of_queues_per_process' undeclared (first use in this function) max_num_of_processes * max_num_of_queues_per_process * ^ Caused by commit b8cbab042cd6 ("drm/amdkfd: Allow user to limit only queues per device") from Linus' tree interacting with commit e18e794e6ba0 ("drm/amdkfd: Fixed calculation of gart buffer size") from the drm tree. I couldn't easily figure out how to fix this, so I just disabled the driver using the patch below. Please let me know when it is fixed, or provide me with a merge fix patch. From: Stephen Rothwell Date: Thu, 29 Jan 2015 13:34:22 +1100 Subject: [PATCH] drm/amdkfd: disable driver due to interaction with a bug fix Signed-off-by: Stephen Rothwell --- drivers/gpu/drm/amd/amdkfd/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/amdkfd/Kconfig b/drivers/gpu/drm/amd/amdkfd/Kconfig index 8dfac37ff327..e96b4d6e3567 100644 --- a/drivers/gpu/drm/amd/amdkfd/Kconfig +++ b/drivers/gpu/drm/amd/amdkfd/Kconfig @@ -5,5 +5,6 @@ config HSA_AMD tristate "HSA kernel driver for AMD GPU devices" depends on DRM_RADEON && AMD_IOMMU_V2 && X86_64 + depends on BROKEN help Enable this if you want to use HSA features on AMD GPU devices. -- 2.1.4 -- Cheers, Stephen Rothwell sfr@canb.auug.org.au