linux-kernel - Re: m68knommu: dma_{alloc,free}

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Date:	Mon, 11 Sep 2006 16:02:41 +1000
From:	Greg Ungerer <gerg@...pgear.com>
To:	Adrian Bunk <bunk@...sta.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: m68knommu: dma_{alloc,free}_coherent compile error

Hi Adrian,

Adrian Bunk wrote:
> I'm getting the following compile error trying to compile 2.6.18-rc5-mm1 
> (but it doesn't seem to be specific to -mm) for m68knommu with 
> CONFIG_PCI=n (with -Werror-implicit-function-declaration):
> 
> <--  snip  -->
> 
> ...
>   CC      drivers/base/dmapool.o
> /home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/drivers/base/dmapool.c: In function 'pool_alloc_page':
> /home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/drivers/base/dmapool.c:170: error: implicit declaration of function 'dma_alloc_coherent'
> /home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/drivers/base/dmapool.c:173: warning: assignment makes pointer from integer without a cast
> /home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/drivers/base/dmapool.c: In function 'pool_free_page':
> /home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/drivers/base/dmapool.c:208: error: implicit declaration of function 'dma_free_coherent'
> make[3]: *** [drivers/base/dmapool.o] Error 1
> 
> <--  snip  -->

This should fix it?

--- linux-2.6.17/include/asm-m68knommu/dma-mapping.h    2006-06-18 
11:49:35.000000000 +1000
+++ linux-2.6.17-uc1/include/asm-m68knommu/dma-mapping.h 
2006-09-11 15:51:04.000000000 +1000
@@ -1,10 +1,10 @@
  #ifndef _M68KNOMMU_DMA_MAPPING_H
  #define _M68KNOMMU_DMA_MAPPING_H

-#include <linux/config.h>
-
  #ifdef CONFIG_PCI
  #include <asm-generic/dma-mapping.h>
+#else
+#include <asm-generic/dma-mapping-broken.h>
  #endif

  #endif  /* _M68KNOMMU_DMA_MAPPING_H */


-- 
------------------------------------------------------------------------
Greg Ungerer  --  Chief Software Dude       EMAIL:     gerg@...pgear.com
SnapGear -- a Secure Computing Company      PHONE:       +61 7 3435 2888
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