From mboxrd@z Thu Jan 1 00:00:00 1970 From: dtor@chromium.org (Dmitry Torokhov) Date: Fri, 8 May 2015 17:05:44 -0700 Subject: [PATCH] iommu: exynos: tell kmemleak to ignore 2nd level page tables Message-ID: <20150509000544.GA29904@dtor-ws> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Colin Cross 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 Signed-off-by: Dmitry Torokhov --- 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