From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Fri, 2 May 2014 04:29:34 +0000 (+0200)
Subject: spi: core: Protect DMA code by #ifdef CONFIG_HAS_DMA
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~167^2~1^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2de440f59ca9615c92820d165d5e59756e54026b;p=pandora-kernel.git

spi: core: Protect DMA code by #ifdef CONFIG_HAS_DMA

If NO_DMA=y:

drivers/built-in.o: In function `spi_map_buf':
spi.c:(.text+0x21bc60): undefined reference to `dma_map_sg'
drivers/built-in.o: In function `spi_unmap_buf.isra.33':
spi.c:(.text+0x21c32e): undefined reference to `dma_unmap_sg'
make[3]: *** [vmlinux] Error 1

Protect the DMA code by #ifdef CONFIG_HAS_DMA to fix this:
  - Extract __spi_map_msg() from spi_map_msg(),
  - Provide dummy definitions of __spi_map_msg() and spi_unmap_msg() if
    !CONFIG_HAS_DMA.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

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