This breaks booting from sata_sil24 with the recent DMA change. According to James Bottomley this was in to improve performance. Remove it for now to make DMA working again. Signed-off-by: Sven Schnelle <svens@xxxxxxxxxxxxxx> --- drivers/parisc/sba_iommu.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index 296668caf7e5..6ac9500f2752 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -678,14 +678,6 @@ static int sba_dma_supported( struct device *dev, u64 mask) return(0); } - /* Documentation/DMA-API-HOWTO.txt tells drivers to try 64-bit - * first, then fall back to 32-bit if that fails. - * We are just "encouraging" 32-bit DMA masks here since we can - * never allow IOMMU bypass unless we add special support for ZX1. - */ - if (mask > ~0U) - return 0; - ioc = GET_IOC(dev); if (!ioc) return 0; -- 2.23.0.rc1
