ION need HAS_DMA (e.g. need DMA_SHARED_BUFFER), so it has to depend on
HAS_DMA, or can not pass compiling with allmodconfig under score which
NO_DMA. And the related error:
CC drivers/staging/android/ion/ion_cma_heap.o
drivers/staging/android/ion/ion_cma_heap.c: In function 'ion_cma_mmap':
drivers/staging/android/ion/ion_cma_heap.c:168:2: error: implicit declaration
of function 'dma_mmap_coherent' [-Werror=implicit-function-declaration]
return dma_mmap_coherent(dev, vma, info->cpu_addr, info->handle,
^
cc1: some warnings being treated as errors
make[4]: *** [drivers/staging/android/ion/ion_cma_heap.o] Error 1
make[3]: *** [drivers/staging/android/ion] Error 2
make[2]: *** [drivers/staging/android] Error 2
make[1]: *** [drivers/staging] Error 2
make: *** [drivers] Error 2
Signed-off-by: Chen Gang <gang.chen.5...@gmail.com>
---
drivers/staging/android/ion/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/android/ion/Kconfig
b/drivers/staging/android/ion/Kconfig
index 0f8fec1..0a6e4d0 100644
--- a/drivers/staging/android/ion/Kconfig
+++ b/drivers/staging/android/ion/Kconfig
@@ -1,6 +1,6 @@
menuconfig ION
bool "Ion Memory Manager"
- depends on HAVE_MEMBLOCK
+ depends on HAVE_MEMBLOCK && HAS_DMA
select GENERIC_ALLOCATOR
select DMA_SHARED_BUFFER
---help---
--
1.9.2.459.g68773ac
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