From: Alex Williamson <alex.williamson@hp.com>
Date: Thu, 30 Jul 2009 22:15:18 +0000 (-0600)
Subject: PCI iommu: iommu=pt is a valid early param
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=80286879c209034245f0a28a2171d2ec23b7481c;p=openwrt%2Fstaging%2Fblogic.git

PCI iommu: iommu=pt is a valid early param

This avoids a "Malformed early option 'iommu'" on boot when trying
to use pass-through mode.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---

diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 1a041bcf506b..ae13e34f7248 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -212,10 +212,8 @@ static __init int iommu_setup(char *p)
 		if (!strncmp(p, "soft", 4))
 			swiotlb = 1;
 #endif
-		if (!strncmp(p, "pt", 2)) {
+		if (!strncmp(p, "pt", 2))
 			iommu_pass_through = 1;
-			return 1;
-		}
 
 		gart_parse_options(p);