dma-direct: use is_swiotlb_active in dma_direct_map_page

Use the more specific is_swiotlb_active check instead of checking the
global swiotlb_force variable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

diff --git a/kernel/dma/direct.h b/kernel/dma/direct.h
index 8a6cd53..a78c0ba 100644 (file)
--- a/kernel/dma/direct.h
+++ b/kernel/dma/direct.h
@@ -91,7 +91,7 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev,
                return swiotlb_map(dev, phys, size, dir, attrs);
 
        if (unlikely(!dma_capable(dev, dma_addr, size, true))) {
-               if (swiotlb_force != SWIOTLB_NO_FORCE)
+               if (is_swiotlb_active(dev))
                        return swiotlb_map(dev, phys, size, dir, attrs);
 
                dev_WARN_ONCE(dev, 1,