kernel test robot reported build errors (undefined references)
that didn't make much sense. After reproducing them, there is also
a Kconfig warning that is the root cause of the build errors, so
fix that Kconfig problem.
Fixes this Kconfig warning:
WARNING: unmet direct dependencies detected for CMA
Depends on [n]: MMU [=n]
Selected by [m]:
- DRM_ASPEED_GFX [=m] && HAS_IOMEM [=y] && DRM [=m] && OF [=y] &&
(COMPILE_TEST [=y] || ARCH_ASPEED) && HAVE_DMA_CONTIGUOUS [=y]
and these dependent build errors:
(.text+0x10c8c): undefined reference to `start_isolate_page_range'
microblaze-linux-ld: (.text+0x10f14): undefined reference to
`test_pages_isolated'
microblaze-linux-ld: (.text+0x10fd0): undefined reference to
`undo_isolate_page_range'
Fixes: 76356a966e33 ("drm: aspeed: Clean up Kconfig options")
Reported-by: kernel test robot <l...@intel.com>
Signed-off-by: Randy Dunlap <rdun...@infradead.org>
Cc: Joel Stanley <j...@jms.id.au>
Cc: Andrew Jeffery <and...@aj.id.au>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Michal Simek <mon...@monstr.eu>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Mike Rapoport <r...@linux.ibm.com>
Cc: linux...@kvack.org
Cc: linux-asp...@lists.ozlabs.org
Cc: linux-arm-ker...@lists.infradead.org
Cc: David Airlie <airl...@linux.ie>
Cc: dri-de...@lists.freedesktop.org
---
First sent on 2020-09-07.
Feel free to fix the Kconfig warning some other way...
drivers/gpu/drm/aspeed/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- linux-next-20201009.orig/drivers/gpu/drm/aspeed/Kconfig
+++ linux-next-20201009/drivers/gpu/drm/aspeed/Kconfig
@@ -3,6 +3,7 @@ config DRM_ASPEED_GFX
tristate "ASPEED BMC Display Controller"
depends on DRM && OF
depends on (COMPILE_TEST || ARCH_ASPEED)
+ depends on MMU
select DRM_KMS_HELPER
select DRM_KMS_CMA_HELPER
select DMA_CMA if HAVE_DMA_CONTIGUOUS
