[PATCH] drm: arm-hdlcd: remove DMA_CMA select
flat view
STALE3931d
From: arnd@arndb.de (Arnd Bergmann)
Date: 2016-01-01 14:09:42
Also in:
dri-devel, lkml
Subsystem:
arm mali-dp drm driver, drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
Liviu Dudau, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
The newly added DRM_HDLCD driver tries to select DMA_CMA, but that is
not necessarily possible, as not all configurations contain HAVE_DMA_CONTIGUOUS:
warning: (DRM_HDLCD) selects DMA_CMA which has unmet direct dependencies (HAVE_DMA_CONTIGUOUS && CMA)
drivers/built-in.o: In function `dma_alloc_from_contiguous':
:(.text+0x1dee00): undefined reference to `cma_alloc'
drivers/built-in.o: In function `dma_release_from_contiguous':
:(.text+0x1dee24): undefined reference to `cma_release'
This removes the 'select' statement. It is not needed because CMA is meant
to transparently change the behavior of dma_alloc_coherent to make it succeed
for larger allocations, but there is no actual build-time dependency, and
the driver can still work without CMA in many cases.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 1561e558334d ("drm: Add support for ARM's HDLCD controller.")
---
Found on ARM randconfig builds with yesterday's linux-next
diff --git a/drivers/gpu/drm/arm/Kconfig b/drivers/gpu/drm/arm/Kconfig
index 5e8c8a86860b..2f4d3b7fb871 100644
--- a/drivers/gpu/drm/arm/Kconfig
+++ b/drivers/gpu/drm/arm/Kconfig@@ -10,7 +10,6 @@ config DRM_HDLCD depends on DRM_ARM depends on COMMON_CLK select COMMON_CLK_SCPI - select DMA_CMA select DRM_KMS_CMA_HELPER select DRM_GEM_CMA_HELPER help