iommu/amd: Remove unnecessary cache flushes in amd_iommu_resume

The caches are already flushed in enable_iommus(), so this
flush is not necessary.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index c7a5d7e14547e2292ac70e81f1f4a1395f40c292..38784733cbb4c7dd73716b8c3aa533dda18bb400 100644 (file)
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1396,13 +1396,6 @@ static void amd_iommu_resume(void)
 
        /* re-load the hardware */
        enable_iommus();
-
-       /*
-        * we have to flush after the IOMMUs are enabled because a
-        * disabled IOMMU will never execute the commands we send
-        */
-       for_each_iommu(iommu)
-               iommu_flush_all_caches(iommu);
 }
 
 static int amd_iommu_suspend(void)