linux-kernel - [PATCH v5 07/07] iommu/ipmmu-vmsa: Drop LPAE Kconfig dependency

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 20 Sep 2016 22:45:06 +0900
From:   Magnus Damm <magnus.damm@...il.com>
To:     iommu@...ts.linux-foundation.org
Cc:     laurent.pinchart+renesas@...asonboard.com, geert+renesas@...der.be,
        joro@...tes.org, linux-kernel@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, horms+renesas@...ge.net.au,
        Magnus Damm <magnus.damm@...il.com>, robin.murphy@....com,
        m.szyprowski@...sung.com
Subject: [PATCH v5 07/07] iommu/ipmmu-vmsa: Drop LPAE Kconfig dependency

From: Magnus Damm <damm+renesas@...nsource.se>

Neither the ARM page table code enabled by IOMMU_IO_PGTABLE_LPAE
nor the IPMMU_VMSA driver actually depends on ARM_LPAE, so get
rid of the dependency.

Tested with ipmmu-vmsa on r8a7794 ALT and a kernel config using:
 # CONFIG_ARM_LPAE is not set

Signed-off-by: Magnus Damm <damm+renesas@...nsource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
---

 Changes since V4:
 - Rebased patch to fit on top of earlier Kconfig changes in series

 Changes since V3:
 - None

 Changes since V2:
 - None

 Changes since V1:
 - Rebased on top of ARCH_RENESAS change
 - Added Acked-by from Laurent

 drivers/iommu/Kconfig |    1 -
 1 file changed, 1 deletion(-)

--- 0008/drivers/iommu/Kconfig
+++ work/drivers/iommu/Kconfig	2016-09-20 22:13:03.500607110 +0900
@@ -275,7 +275,6 @@ config EXYNOS_IOMMU_DEBUG
 config IPMMU_VMSA
 	bool "Renesas VMSA-compatible IPMMU"
 	depends on ARM || IOMMU_DMA
-	depends on ARM_LPAE
 	depends on ARCH_RENESAS || COMPILE_TEST
 	select IOMMU_API
 	select IOMMU_IO_PGTABLE_LPAE