Messages in this thread Patch in this message | | | From | Mauricio Faria de Oliveira <> | Subject | [PATCH 3/3] powerpc: implement DMA_ATTR_NO_WARN | Date | Wed, 6 Jul 2016 18:03:33 -0300 |
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Add support for the DMA_ATTR_NO_WARN attribute on powerpc iommu code.
Signed-off-by: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com> --- arch/powerpc/kernel/iommu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index a8e3490..69bb17f 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -479,7 +479,7 @@ int ppc_iommu_map_sg(struct device *dev, struct iommu_table *tbl, /* Handle failure */ if (unlikely(entry == DMA_ERROR_CODE)) { - if (printk_ratelimit()) + if (unlikely(!dma_get_attr(DMA_ATTR_NO_WARN, attrs)) && printk_ratelimit()) dev_info(dev, "iommu_alloc failed, tbl %p " "vaddr %lx npages %lu\n", tbl, vaddr, npages); @@ -776,7 +776,7 @@ dma_addr_t iommu_map_page(struct device *dev, struct iommu_table *tbl, mask >> tbl->it_page_shift, align, attrs); if (dma_handle == DMA_ERROR_CODE) { - if (printk_ratelimit()) { + if (unlikely(!dma_get_attr(DMA_ATTR_NO_WARN, attrs)) && printk_ratelimit()) { dev_info(dev, "iommu_alloc failed, tbl %p " "vaddr %p npages %d\n", tbl, vaddr, npages); -- 1.8.3.1
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