[PATCH 16/44] arm64: remove DMA_ERROR_CODE

The dma alloc interface returns an error by return NULL, and the mapping interfaces rely on the mapping_error method, which the dummy ops already implement correctly. Thus remove the DMA_ERROR_CODE define. Signed-off-by: Christoph Hellwig Reviewed-by: Robin Murphy

Re: [PATCH 16/44] arm64: remove DMA_ERROR_CODE

On 08/06/17 14:25, Christoph Hellwig wrote: > The dma alloc interface returns an error by return NULL, and the > mapping interfaces rely on the mapping_error method, which the dummy > ops already implement correctly. > > Thus remove the DMA_ERROR_CODE define. Reviewed-by: Robin Murphy

[PATCH 16/44] arm64: remove DMA_ERROR_CODE

The dma alloc interface returns an error by return NULL, and the mapping interfaces rely on the mapping_error method, which the dummy ops already implement correctly. Thus remove the DMA_ERROR_CODE define. Signed-off-by: Christoph Hellwig --- arch/arm64/include/asm/dma-mapping.h |