linux-kernel - [PATCH 7/7] x86, iommu: use NULL instead of plain 0 for __IOMMU

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Date:	Sun,  2 Sep 2012 23:31:46 +0200
From:	Mathias Krause <minipli@...glemail.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	x86@...nel.org, linux-kernel@...r.kernel.org,
	Mathias Krause <minipli@...glemail.com>
Subject: [PATCH 7/7] x86, iommu: use NULL instead of plain 0 for __IOMMU_INIT

IOMMU_INIT_POST and IOMMU_INIT_POST_FINISH pass the plain value 0
instead of NULL to __IOMMU_INIT. Fix this and make sparse happy by
doing so.

Signed-off-by: Mathias Krause <minipli@...glemail.com>
---
 arch/x86/include/asm/iommu_table.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/iommu_table.h b/arch/x86/include/asm/iommu_table.h
index bbf8fb2..f42a047 100644
--- a/arch/x86/include/asm/iommu_table.h
+++ b/arch/x86/include/asm/iommu_table.h
@@ -63,10 +63,10 @@ struct iommu_table_entry {
  * to stop detecting the other IOMMUs after yours has been detected.
  */
 #define IOMMU_INIT_POST(_detect)					\
-	__IOMMU_INIT(_detect, pci_swiotlb_detect_4gb,  0, 0, 0)
+	__IOMMU_INIT(_detect, pci_swiotlb_detect_4gb,  NULL, NULL, 0)
 
 #define IOMMU_INIT_POST_FINISH(detect)					\
-	__IOMMU_INIT(_detect, pci_swiotlb_detect_4gb,  0, 0, 1)
+	__IOMMU_INIT(_detect, pci_swiotlb_detect_4gb,  NULL, NULL, 1)
 
 /*
  * A more sophisticated version of IOMMU_INIT. This variant requires:
-- 
1.7.10.4

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