linux-kernel - [PATCH 6/6] AMD IOMMU: remove unnecessary code from the iommu

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Date:	Thu, 3 Jul 2008 19:35:11 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	mingo@...hat.com, tglx@...utronix.de
CC:	linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
	bhavna.sarathy@....com, robert.richter@....com,
	Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 6/6] AMD IOMMU: remove unnecessary code from the iommu_enable function

This code removes a leftover from the iommu_enable function. The ctrl variable
is assigned but never used.

Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
 arch/x86/kernel/amd_iommu_init.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index c970fac..2a13e43 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -169,14 +169,11 @@ static void __init iommu_feature_disable(struct amd_iommu *iommu, u8 bit)
 
 void __init iommu_enable(struct amd_iommu *iommu)
 {
-	u32 ctrl;
-
 	printk(KERN_INFO "AMD IOMMU: Enabling IOMMU at ");
 	print_devid(iommu->devid, 0);
 	printk(" cap 0x%hx\n", iommu->cap_ptr);
 
 	iommu_feature_enable(iommu, CONTROL_IOMMU_EN);
-	ctrl = readl(iommu->mmio_base + MMIO_CONTROL_OFFSET);
 }
 
 static u8 * __init iommu_map_mmio_space(u64 address)
-- 
1.5.3.7


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