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authorDavid S. Miller <davem@davemloft.net>2009-09-24 15:13:11 -0700
committerDavid S. Miller <davem@davemloft.net>2009-09-24 15:13:11 -0700
commit8b3f6af86378d0a10ca2f1ded1da124aef13b62c (patch)
treede6ca90295730343c495be8d98be8efa322140ef /arch/arm/mm/fault.c
parent139d6065c83071d5f66cd013a274a43699f8e2c1 (diff)
parent94e0fb086fc5663c38bbc0fe86d698be8314f82f (diff)
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts: drivers/staging/Kconfig drivers/staging/Makefile drivers/staging/cpc-usb/TODO drivers/staging/cpc-usb/cpc-usb_drv.c drivers/staging/cpc-usb/cpc.h drivers/staging/cpc-usb/cpc_int.h drivers/staging/cpc-usb/cpcusb.h
Diffstat (limited to 'arch/arm/mm/fault.c')
-rw-r--r--arch/arm/mm/fault.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 6fdcbb70982..cc8829d7e11 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -16,6 +16,8 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/page-flags.h>
+#include <linux/sched.h>
+#include <linux/highmem.h>
#include <asm/system.h>
#include <asm/pgtable.h>
@@ -23,6 +25,7 @@
#include "fault.h"
+#ifdef CONFIG_MMU
#ifdef CONFIG_KPROBES
static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr)
@@ -97,6 +100,10 @@ void show_pte(struct mm_struct *mm, unsigned long addr)
printk("\n");
}
+#else /* CONFIG_MMU */
+void show_pte(struct mm_struct *mm, unsigned long addr)
+{ }
+#endif /* CONFIG_MMU */
/*
* Oops. The kernel tried to access some page that wasn't present.
@@ -171,6 +178,7 @@ void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
__do_kernel_fault(mm, addr, fsr, regs);
}
+#ifdef CONFIG_MMU
#define VM_FAULT_BADMAP 0x010000
#define VM_FAULT_BADACCESS 0x020000
@@ -322,6 +330,13 @@ no_context:
__do_kernel_fault(mm, addr, fsr, regs);
return 0;
}
+#else /* CONFIG_MMU */
+static int
+do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+{
+ return 0;
+}
+#endif /* CONFIG_MMU */
/*
* First Level Translation Fault Handler
@@ -340,6 +355,7 @@ no_context:
* interrupt or a critical region, and should only copy the information
* from the master page table, nothing more.
*/
+#ifdef CONFIG_MMU
static int __kprobes
do_translation_fault(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
@@ -378,6 +394,14 @@ bad_area:
do_bad_area(addr, fsr, regs);
return 0;
}
+#else /* CONFIG_MMU */
+static int
+do_translation_fault(unsigned long addr, unsigned int fsr,
+ struct pt_regs *regs)
+{
+ return 0;
+}
+#endif /* CONFIG_MMU */
/*
* Some section permission faults need to be handled gracefully.