On Wed, Nov 11, 2020 at 10:09:18AM -0800, Randy Dunlap wrote: > Hi, > > Is this a speed of build issue? i wasn't thinking about that but sure it does have that effect too. > Yes, make is descending into multiple directories that are not > strictly needed in this kernel config: > > AR drivers/gpu/drm/arm/built-in.a > AR drivers/gpu/drm/rcar-du/built-in.a > AR drivers/gpu/drm/omapdrm/dss/built-in.a > AR drivers/gpu/drm/omapdrm/displays/built-in.a > AR drivers/gpu/drm/omapdrm/built-in.a > AR drivers/gpu/drm/tilcdc/built-in.a > AR drivers/gpu/drm/imx/built-in.a > AR drivers/gpu/drm/i2c/built-in.a > AR drivers/gpu/drm/panel/built-in.a > AR drivers/gpu/drm/bridge/analogix/built-in.a > AR drivers/gpu/drm/bridge/cadence/built-in.a > AR drivers/gpu/drm/bridge/synopsys/built-in.a > AR drivers/gpu/drm/bridge/built-in.a > AR drivers/gpu/drm/hisilicon/built-in.a > AR drivers/gpu/drm/tiny/built-in.a > AR drivers/gpu/drm/xlnx/built-in.a > AR drivers/gpu/drm/built-in.a > > The built-in.a files that I see being built are all of size 8 bytes. and they don't make it into the final image which is what i wanted. thanks. now i would interested to know why some subsystems have those obj-y's unconditionally asserted? for instance, would something like this make sense? diff --git a/drivers/video/Makefile b/drivers/video/Makefile index df7650adede9..47508d8049d9 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -7,7 +7,7 @@ obj-$(CONFIG_FB_STI) += console/ obj-$(CONFIG_LOGO) += logo/ obj-y += backlight/ -obj-y += fbdev/ +obj-$(CONFIG_FB) += fbdev/ obj-$(CONFIG_VIDEOMODE_HELPERS) += display_timing.o videomode.o ifeq ($(CONFIG_OF),y) or this: diff --git a/drivers/gpu/Makefile b/drivers/gpu/Makefile index 835c88318cec..c1a71f4938bb 100644 --- a/drivers/gpu/Makefile +++ b/drivers/gpu/Makefile @@ -3,6 +3,7 @@ # taken to initialize them in the correct order. Link order is the only way # to ensure this currently. obj-$(CONFIG_TEGRA_HOST1X) += host1x/ -obj-y += drm/ vga/ +obj-y += vga/ +obj-$(CONFIG_DRM) += drm/ obj-$(CONFIG_IMX_IPUV3_CORE) += ipu-v3/ obj-$(CONFIG_TRACE_GPU_MEM) += trace/ - jrun
