If NO_DMA=y:

drivers/built-in.o: In function `__drm_pci_free': drivers/gpu/drm/drm_pci.c:112: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `drm_pci_alloc': drivers/gpu/drm/drm_pci.c:72: undefined reference to `dma_alloc_coherent' drivers/built-in.o: In function `drm_gem_unmap_dma_buf': drivers/gpu/drm/drm_prime.c:87: undefined reference to `dma_unmap_sg' drivers/built-in.o: In function `drm_gem_map_dma_buf': drivers/gpu/drm/drm_prime.c:78: undefined reference to `dma_map_sg'

Signed-off-by: Geert Uytterhoeven geert@linux-m68k.org --- drivers/gpu/drm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index a7c54c8..626bc0c 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -6,7 +6,7 @@ # menuconfig DRM tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)" - depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && MMU + depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && MMU && HAS_DMA select HDMI select I2C select I2C_ALGOBIT