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Message-ID: <cf7fe470-1b8f-a4a2-d3a1-3360ec1cc578@infradead.org> Date: Fri, 13 Apr 2018 19:49:28 -0700 From: Randy Dunlap <rdunlap@...radead.org> To: akpm@...ux-foundation.org, sfr@...b.auug.org.au, linux-next@...r.kernel.org, linux-kernel@...r.kernel.org, dri-devel <dri-devel@...ts.freedesktop.org>, Oded Gabbay <oded.gabbay@...il.com> Subject: [PATCH] gpu/drm/amd/amdkfd: fix build, select MMU_NOTIFIER From: Randy Dunlap <rdunlap@...radead.org> When CONFIG_MMU_NOTIFIER is not enabled, struct mmu_notifier has an incomplete type definition, which causes build errors. ../drivers/gpu/drm/amd/amdkfd/kfd_priv.h:607:22: error: field 'mmu_notifier' has incomplete type ../include/linux/kernel.h:979:32: error: dereferencing pointer to incomplete type ../include/linux/kernel.h:980:18: error: dereferencing pointer to incomplete type ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:434:2: error: implicit declaration of function 'mmu_notifier_unregister_no_release' [-Werror=implicit-function-declaration] ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:435:2: error: implicit declaration of function 'mmu_notifier_call_srcu' [-Werror=implicit-function-declaration] ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:438:21: error: variable 'kfd_process_mmu_notifier_ops' has initializer but incomplete type ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:439:2: error: unknown field 'release' specified in initializer ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:439:2: warning: excess elements in struct initializer [enabled by default] ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:439:2: warning: (near initialization for 'kfd_process_mmu_notifier_ops') [enabled by default] ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:534:2: error: implicit declaration of function 'mmu_notifier_register' [-Werror=implicit-function-declaration] Signed-off-by: Randy Dunlap <rdunlap@...radead.org> Cc: Oded Gabbay <oded.gabbay@...il.com> Cc: dri-devel@...ts.freedesktop.org --- >From linux-next, not mmotm, but found in mmotm builds. drivers/gpu/drm/amd/amdkfd/Kconfig | 1 + 1 file changed, 1 insertion(+) --- mmotm-2018-0413-1728.orig/drivers/gpu/drm/amd/amdkfd/Kconfig +++ mmotm-2018-0413-1728/drivers/gpu/drm/amd/amdkfd/Kconfig @@ -6,5 +6,6 @@ config HSA_AMD tristate "HSA kernel driver for AMD GPU devices" depends on DRM_AMDGPU && X86_64 imply AMD_IOMMU_V2 + select MMU_NOTIFIER help Enable this if you want to use HSA features on AMD GPU devices.
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