iommu/amd: Remove change_pte mmu_notifier call-back

All calls to this call-back are wrapped with
mmu_notifer_invalidate_range_start()/end(), making this
notifier pretty useless, so remove it.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Oded Gabbay <oded.gabbay@amd.com>

diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index 2b7de882e91c4c5cf3b54f2d2e1ea371b8219190..524fd67a85b1bd3fe82f93769d949654f6c4fa01 100644 (file)
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -406,14 +406,6 @@ static int mn_clear_flush_young(struct mmu_notifier *mn,
        return 0;
 }
 
-static void mn_change_pte(struct mmu_notifier *mn,
-                         struct mm_struct *mm,
-                         unsigned long address,
-                         pte_t pte)
-{
-       __mn_flush_page(mn, address);
-}
-
 static void mn_invalidate_page(struct mmu_notifier *mn,
                               struct mm_struct *mm,
                               unsigned long address)
@@ -484,7 +476,6 @@ static void mn_release(struct mmu_notifier *mn, struct mm_struct *mm)
 static struct mmu_notifier_ops iommu_mn = {
        .release                = mn_release,
        .clear_flush_young      = mn_clear_flush_young,
-       .change_pte             = mn_change_pte,
        .invalidate_page        = mn_invalidate_page,
        .invalidate_range_start = mn_invalidate_range_start,
        .invalidate_range_end   = mn_invalidate_range_end,