Re: [patch] ia64: pci: Fix a condition in pcibr_dmamap_ate32()

[Dan Carpenter <dan.carpenter@oracle.com>]

This patch is still required.  Would you like me to resend it?

regards,
dan carpenter

On Thu, Dec 08, 2016 at 01:59:36PM +0300, Dan Carpenter wrote:
> Smatch complains that probably this condition isn't correct because it
> first does a comparison and then a mask.  Judging from the surrounding
> code probably the parenthesis are in the wrong place.
> 
> The original code is equivalent to:
> 
> 	if (dma_flags = SN_DMA_ADDR_PHYS)
> 
> And it's probably going to be true less often than my corrected version.
> 
> Fixes: 83821d3f558d ("[PATCH] PCI: altix: msi support")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> 
> diff --git a/arch/ia64/sn/pci/pcibr/pcibr_dma.c b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
> index 1e863b277ac9..71c9bf308adf 100644
> --- a/arch/ia64/sn/pci/pcibr/pcibr_dma.c
> +++ b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
> @@ -82,7 +82,7 @@
>  	if (IS_PCIX(pcibus_info))
>  		ate_flags &= ~(PCI32_ATE_PREF);
>  
> -	if (SN_DMA_ADDRTYPE(dma_flags = SN_DMA_ADDR_PHYS))
> +	if (SN_DMA_ADDRTYPE(dma_flags) = SN_DMA_ADDR_PHYS)
>  		xio_addr = IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
>  	    					      PHYS_TO_TIODMA(paddr);
>  	else