linux-kernel - [PATCH] x86: reduce forbid

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Date:	Fri, 18 Jul 2008 13:44:16 +0100
From:	"Jan Beulich" <jbeulich@...ell.com>
To:	<mingo@...e.hu>, <tglx@...utronix.de>, <hpa@...or.com>
Cc:	<linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: reduce forbid_dac's visibility

It's not used anywhere outside its declaring file.

Signed-off-by: Jan Beulich <jbeulich@...ell.com>

---
 arch/x86/kernel/pci-dma.c     |    3 +--
 include/asm-x86/dma-mapping.h |    1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

--- linux-2.6.26/arch/x86/kernel/pci-dma.c	2008-07-13 23:51:29.000000000 +0200
+++ 2.6.26-x86-forbid-dac/arch/x86/kernel/pci-dma.c	2008-07-15 14:51:28.000000000 +0200
@@ -8,8 +8,7 @@
 #include <asm/gart.h>
 #include <asm/calgary.h>
 
-int forbid_dac __read_mostly;
-EXPORT_SYMBOL(forbid_dac);
+static int forbid_dac __read_mostly;
 
 const struct dma_mapping_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
--- linux-2.6.26/include/asm-x86/dma-mapping.h	2008-07-13 23:51:29.000000000 +0200
+++ 2.6.26-x86-forbid-dac/include/asm-x86/dma-mapping.h	2008-07-17 10:29:09.000000000 +0200
@@ -14,7 +14,6 @@ extern dma_addr_t bad_dma_address;
 extern int iommu_merge;
 extern struct device fallback_dev;
 extern int panic_on_overflow;
-extern int forbid_dac;
 extern int force_iommu;
 
 struct dma_mapping_ops {



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