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| author |   Qian Cai <cai@lca.pw> | 2020-01-06 10:27:27 -0500 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2020-01-07 17:08:58 +0100 |
| commit | 55817b340a31951d23d1692db45522560b1d20f9 (patch) | |
| tree | 5855fe29818e856523e7558a24292887fcde534f /drivers/iommu/dma-iommu.c | |
| parent | iommu/vt-d: Unlink device if failed to add to group (diff) | |
| download | linux-dev-55817b340a31951d23d1692db45522560b1d20f9.tar.xz linux-dev-55817b340a31951d23d1692db45522560b1d20f9.zip | |
iommu/dma: fix variable 'cookie' set but not used
The commit c18647900ec8 ("iommu/dma: Relax locking in
iommu_dma_prepare_msi()") introduced a compliation warning,
drivers/iommu/dma-iommu.c: In function 'iommu_dma_prepare_msi':
drivers/iommu/dma-iommu.c:1206:27: warning: variable 'cookie' set but
not used [-Wunused-but-set-variable]
struct iommu_dma_cookie *cookie;
^~~~~~
Fixes: c18647900ec8 ("iommu/dma: Relax locking in iommu_dma_prepare_msi()")
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to '')
| -rw-r--r-- | drivers/iommu/dma-iommu.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index c363294b3bb9..a2e96a5fd9a7 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -1203,7 +1203,6 @@ int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr) { struct device *dev = msi_desc_to_dev(desc); struct iommu_domain *domain = iommu_get_domain_for_dev(dev); - struct iommu_dma_cookie *cookie; struct iommu_dma_msi_page *msi_page; static DEFINE_MUTEX(msi_prepare_lock); /* see below */ @@ -1212,8 +1211,6 @@ int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr) return 0; } - cookie = domain->iova_cookie; - /* * In fact the whole prepare operation should already be serialised by * irq_domain_mutex further up the callchain, but that's pretty subtle |