[PATCH 3/3] powerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys

[Michael Ellerman]

Christoph Hellwig <hch at lst.de> writes:
> Support for calling the DMA API functions without a valid device pointer
> was removed a while ago, so remove the stale support for that from the
> powerpc __phys_to_dma / __dma_to_phys helpers.
>
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
>  arch/powerpc/include/asm/dma-direct.h | 4 ----
>  1 file changed, 4 deletions(-)

Acked-by: Michael Ellerman <mpe at ellerman.id.au>

cheers

> diff --git a/arch/powerpc/include/asm/dma-direct.h b/arch/powerpc/include/asm/dma-direct.h
> index e29e8a236b8d..abc154d784b0 100644
> --- a/arch/powerpc/include/asm/dma-direct.h
> +++ b/arch/powerpc/include/asm/dma-direct.h
> @@ -4,15 +4,11 @@
>  
>  static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
>  {
> -	if (!dev)
> -		return paddr + PCI_DRAM_OFFSET;
>  	return paddr + dev->archdata.dma_offset;
>  }
>  
>  static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
>  {
> -	if (!dev)
> -		return daddr - PCI_DRAM_OFFSET;
>  	return daddr - dev->archdata.dma_offset;
>  }
>  #endif /* ASM_POWERPC_DMA_DIRECT_H */
> -- 
> 2.20.1