On Mon, 2015-04-27 at 23:49 -0400, Tejun Heo wrote:

On Tue, Apr 28, 2015 at 11:12:25AM +1000, Michael Ellerman wrote:

quoted

On Mon, 2015-04-27 at 06:59 -0400, Julian Margetson wrote:

quoted

Kernel 4.1-rc1 build fails  on Sam460ex amcc 460ex powerpc Canyonlands with 
CONFIG_SATA_DWC=y

sata_dwc_460ex.c:(.text+0xa165c): undefined reference to `dw_dma_remove'
drivers/built-in.o: In function `sata_dwc_probe':
sata_dwc_460ex.c:(.text+0xa1900): undefined reference to `dw_dma_probe'
sata_dwc_460ex.c:(.text+0xa1954): undefined reference to `dw_dma_remove'
make: *** [vmlinux] Error 1

Looks like it was caused by:

commit 8b3444852a2b58129ee68a8dd69fef81ceb902a1
Author: Andy Shevchenko [off-list ref]
Date:   Tue Mar 3 22:41:21 2015 +0200

    sata_dwc_460ex: move to generic DMA driver

Oops, Andy?

Sorry for late answer. It requires CONFIG_DW_DMAC=y as well. I don't
know the details of PPC configuration, we might add this to
configuration.

-- 
Andy Shevchenko [off-list ref]
Intel Finland Oy