Re: [PATCH] drm: prefix header search paths with $(srctree)/
From: Masahiro Yamada
Date: Sun Feb 17 2019 - 23:43:46 EST
On Thu, Jan 31, 2019 at 1:01 PM Masahiro Yamada
<yamada.masahiro@xxxxxxxxxxxxx> wrote:
>
> Currently, the Kbuild core manipulates header search paths in a crazy
> way [1].
>
> To fix this mess, I want all Makefiles to add explicit $(srctree)/ to
> the search paths in the srctree. Some Makefiles are already written in
> that way, but not all. The goal of this work is to make the notation
> consistent, and finally get rid of the gross hacks.
>
> Having whitespaces after -I does not matter since commit 48f6e3cf5bc6
> ("kbuild: do not drop -I without parameter").
>
> [1]: https://patchwork.kernel.org/patch/9632347/
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> ---
Could you take a look at this series, please?
Thanks.
> I put all gpu/drm changes into a single patch because
> they are trivial conversion.
>
> Please let me know if I need to split this into per-driver patches.
>
>
> drivers/gpu/drm/amd/amdgpu/Makefile | 2 +-
> drivers/gpu/drm/amd/lib/Makefile | 2 +-
> drivers/gpu/drm/i915/gvt/Makefile | 2 +-
> drivers/gpu/drm/msm/Makefile | 6 +++---
> drivers/gpu/drm/nouveau/Kbuild | 8 ++++----
> 5 files changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
> index f76bcb9..b21ebb0 100644
> --- a/drivers/gpu/drm/amd/amdgpu/Makefile
> +++ b/drivers/gpu/drm/amd/amdgpu/Makefile
> @@ -23,7 +23,7 @@
> # Makefile for the drm device driver. This driver provides support for the
> # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>
> -FULL_AMD_PATH=$(src)/..
> +FULL_AMD_PATH=$(srctree)/$(src)/..
> DISPLAY_FOLDER_NAME=display
> FULL_AMD_DISPLAY_PATH = $(FULL_AMD_PATH)/$(DISPLAY_FOLDER_NAME)
>
> diff --git a/drivers/gpu/drm/amd/lib/Makefile b/drivers/gpu/drm/amd/lib/Makefile
> index 6902430..d534992 100644
> --- a/drivers/gpu/drm/amd/lib/Makefile
> +++ b/drivers/gpu/drm/amd/lib/Makefile
> @@ -27,6 +27,6 @@
> # driver components or later moved to kernel/lib for sharing with
> # other drivers.
>
> -ccflags-y := -I$(src)/../include
> +ccflags-y := -I $(srctree)/$(src)/../include
>
> obj-$(CONFIG_CHASH) += chash.o
> diff --git a/drivers/gpu/drm/i915/gvt/Makefile b/drivers/gpu/drm/i915/gvt/Makefile
> index b016dc7..a4a5a96 100644
> --- a/drivers/gpu/drm/i915/gvt/Makefile
> +++ b/drivers/gpu/drm/i915/gvt/Makefile
> @@ -5,6 +5,6 @@ GVT_SOURCE := gvt.o aperture_gm.o handlers.o vgpu.o trace_points.o firmware.o \
> execlist.o scheduler.o sched_policy.o mmio_context.o cmd_parser.o debugfs.o \
> fb_decoder.o dmabuf.o page_track.o
>
> -ccflags-y += -I$(src) -I$(src)/$(GVT_DIR)
> +ccflags-y += -I $(srctree)/$(src) -I $(srctree)/$(src)/$(GVT_DIR)/
> i915-y += $(addprefix $(GVT_DIR)/, $(GVT_SOURCE))
> obj-$(CONFIG_DRM_I915_GVT_KVMGT) += $(GVT_DIR)/kvmgt.o
> diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile
> index 56a70c7..b7b1ebd 100644
> --- a/drivers/gpu/drm/msm/Makefile
> +++ b/drivers/gpu/drm/msm/Makefile
> @@ -1,7 +1,7 @@
> # SPDX-License-Identifier: GPL-2.0
> -ccflags-y := -Idrivers/gpu/drm/msm
> -ccflags-y += -Idrivers/gpu/drm/msm/disp/dpu1
> -ccflags-$(CONFIG_DRM_MSM_DSI) += -Idrivers/gpu/drm/msm/dsi
> +ccflags-y := -I $(srctree)/$(src)
> +ccflags-y += -I $(srctree)/$(src)/disp/dpu1
> +ccflags-$(CONFIG_DRM_MSM_DSI) += -I $(srctree)/$(src)/dsi
>
> msm-y := \
> adreno/adreno_device.o \
> diff --git a/drivers/gpu/drm/nouveau/Kbuild b/drivers/gpu/drm/nouveau/Kbuild
> index b17843d..b4bc88ad 100644
> --- a/drivers/gpu/drm/nouveau/Kbuild
> +++ b/drivers/gpu/drm/nouveau/Kbuild
> @@ -1,7 +1,7 @@
> -ccflags-y += -I$(src)/include
> -ccflags-y += -I$(src)/include/nvkm
> -ccflags-y += -I$(src)/nvkm
> -ccflags-y += -I$(src)
> +ccflags-y += -I $(srctree)/$(src)/include
> +ccflags-y += -I $(srctree)/$(src)/include/nvkm
> +ccflags-y += -I $(srctree)/$(src)/nvkm
> +ccflags-y += -I $(srctree)/$(src)
>
> # NVKM - HW resource manager
> #- code also used by various userspace tools/tests
> --
> 2.7.4
>
--
Best Regards
Masahiro Yamada