sh: Quiet noisy coherent DMA unmapping on R2D.

IRQs are re-enabled at a later stage when doing the unmapping on R2D via
the sm501 USB coherent DMA, resulting in the irqs_disabled() check
producing considerable noise for this configuration. Just kill off the
check, which was blindly copied from x86 anyways.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 87ced133a363..bea3337a426a 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -89,8 +89,6 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
 
-        WARN_ON(irqs_disabled());       /* for portability */
-
         if (dma_release_from_coherent(dev, get_order(size), vaddr))
                 return;