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authorIngo Molnar <mingo@kernel.org>2015-10-14 16:05:18 +0200
committerIngo Molnar <mingo@kernel.org>2015-10-14 16:05:18 +0200
commitc7d77a7980e434c3af17de19e3348157f9b9ccce (patch)
treeb32c5988ce8239b80c83e94c22d68f5eb0fb84da /lib/iommu-common.c
parent0ce423b6492a02be11662bfaa837dd16945aad3e (diff)
parent8a53554e12e98d1759205afd7b8e9e2ea0936f48 (diff)
Merge branch 'x86/urgent' into core/efi, to pick up a pending EFI fix
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);
}