On Fri, Sep 19, 2008 at 9:45 PM, David Miller <davem@xxxxxxxxxxxxx> wrote:
> From: "Julius Volz" <juliusv@xxxxxxxxxx>
> Date: Fri, 19 Sep 2008 11:47:13 +0200
>> The build with ARCH=um seems to have a problem with the
>> architecture-specific headers:
>> net/core/skb_dma_map.c: In function 'skb_dma_map':
>> net/core/skb_dma_map.c:20: error: implicit declaration of function
>> The bad commit that introduces the skb_dma_map.c file (and this error)
>> is a40c24a1336. Previous versions build fine.
> I'll commit the following to net-next-2.6, let me know if it doesn't
> take care of the problem:
> net: Fix build with ARCH=um
> If UM is going to claim that it supports DMA by setting
> HAS_DMA, it should provide a dma_mapping_error() implementation.
> Based upon a report by Julius Volz.
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
> include/asm-um/dma-mapping.h | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
> diff --git a/include/asm-um/dma-mapping.h b/include/asm-um/dma-mapping.h
> index f0ee4fb..90fc708 100644
> --- a/include/asm-um/dma-mapping.h
> +++ b/include/asm-um/dma-mapping.h
> @@ -118,4 +118,11 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t
> +static inline int
> +dma_mapping_error(struct device *dev, dma_addr_t dma_handle)
> + BUG();
> + return 0;
Thanks, that got rid of the problem!
Julius Volz - Corporate Operations - SysOps
Google Switzerland GmbH - Identification No.: CH-020.4.028.116-1
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