iommu/amd: remove unused variable flush_addr

Variable flush_addr is being assigned but is never read; it
is redundant and can be removed. Cleans up the clang warning:

drivers/iommu/amd_iommu.c:2388:2: warning: Value stored to 'flush_addr'
is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3c1a29104f0e2fcbbdb5bc21bf15ae250d6a4221..797e6454afd5c7c06efc161e5d21202fde1e92aa 100644 (file)
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2382,11 +2382,9 @@ static void __unmap_single(struct dma_ops_domain *dma_dom,
                           size_t size,
                           int dir)
 {
-       dma_addr_t flush_addr;
        dma_addr_t i, start;
        unsigned int pages;
 
-       flush_addr = dma_addr;
        pages = iommu_num_pages(dma_addr, size, PAGE_SIZE);
        dma_addr &= PAGE_MASK;
        start = dma_addr;