Messages in this thread Patch in this message | | | Date | Fri, 8 May 2015 17:05:44 -0700 | From | Dmitry Torokhov <> | Subject | [PATCH] iommu: exynos: tell kmemleak to ignore 2nd level page tables |
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From: Colin Cross <ccross@android.com>
The pointers to the 2nd level page tables are converted to 1st level page table entries, which means kmemleak can't find them and assumes they have been leaked. Call kmemleak_ignore on the 2nd level page tables to prevent them from showing up in kmemleak reports.
Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Dmitry Torokhov <dtor@chromium.org> --- drivers/iommu/exynos-iommu.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index dc14fec4..16920b2 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -855,6 +855,7 @@ static sysmmu_pte_t *alloc_lv2entry(struct exynos_iommu_domain *priv, return ERR_PTR(-ENOMEM); *sent = mk_lv1ent_page(virt_to_phys(pent)); + kmemleak_ignore(pent); *pgcounter = NUM_LV2ENTRIES; pgtable_flush(pent, pent + NUM_LV2ENTRIES); pgtable_flush(sent, sent + 1); -- 2.2.0.rc0.207.ga3a616c
-- Dmitry
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