On Friday 28 February 2014 09:24:27 Santosh Shilimkar wrote:
> So for ARM 'allnoconfig' build we have CONFIG_OF enabled but
> CONFIG_DMA_OF disabled. With that the of-dma.c gets compiled
> out leaving the functions from of-dma.h undefined. I noticed
> this while adding couple of exports in of_dma.h
Looking at current linux-next, I find
Kconfig:
menuconfig DMADEVICES
bool "DMA Engine support"
...
if DMADEVICES
config DMA_OF
def_bool y
depends on OF
endif
This means that DMA_OF is disabled in 'allnoconfig' since DMADEVICES
is also disabled, as you say. The Makefile looks like
obj-$(CONFIG_DMA_OF) += of-dma.o
As of 5fa422c922c25 "dmaengine: move drivers/of/dma.c -> drivers/dma/of-dma.c"
which seems to solve the problem already.
> I am not sure but we added couple of functions for dma-ranges
> and dma-coherent which gets called from generic code.
These functions have nothing to do with the dmaengine code though,
they should be in a different file.
Arnd
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