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authorIngo Molnar <mingo@kernel.org>2015-10-06 17:10:28 +0200
committerIngo Molnar <mingo@kernel.org>2015-10-06 17:10:28 +0200
commit82fc167c392a1700f9adbde639730ee8c8122474 (patch)
tree373ab737a040dd21e5f98425e7c82a6cc4a83568 /lib/iommu-common.c
parente3e72ab80a3fac0b88e07d358a2c75724ccd66b4 (diff)
parent049e6dde7e57f0054fdc49102e7ef4830c698b46 (diff)
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Merge tag 'v4.3-rc4' into locking/core, to pick up fixes before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib/iommu-common.c')
-rw-r--r--lib/iommu-common.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/iommu-common.c b/lib/iommu-common.c
index ff19f66d3f7f..b1c93e94ca7a 100644
--- a/lib/iommu-common.c
+++ b/lib/iommu-common.c
@@ -21,8 +21,7 @@ static DEFINE_PER_CPU(unsigned int, iommu_hash_common);
static inline bool need_flush(struct iommu_map_table *iommu)
{
- return (iommu->lazy_flush != NULL &&
- (iommu->flags & IOMMU_NEED_FLUSH) != 0);
+ return ((iommu->flags & IOMMU_NEED_FLUSH) != 0);
}
static inline void set_flush(struct iommu_map_table *iommu)
@@ -211,7 +210,8 @@ unsigned long iommu_tbl_range_alloc(struct device *dev,
goto bail;
}
}
- if (n < pool->hint || need_flush(iommu)) {
+ if (iommu->lazy_flush &&
+ (n < pool->hint || need_flush(iommu))) {
clear_flush(iommu);
iommu->lazy_flush(iommu);
}