diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2009-03-10 10:24:23 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2009-03-10 10:24:23 +0000 |
| commit | b39e6e8ffb9462d5ac8ccab94e0420c1a203fb6e (patch) | |
| tree | 3390480a229f2d6332c5379429463d8db1c0d356 /arch | |
| parent | 44ebea26df72600505d77d42550a698be2e7ea3f (diff) | |
nommu: Fix the fault processing for the MMU-less case
The patch adds the necessary ifdefs around functions that only make
sense when the MMU is enabled.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mm/fault.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 22c9530e91e2..0d0ed05851c8 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -22,6 +22,7 @@ #include "fault.h" +#ifdef CONFIG_MMU #ifdef CONFIG_KPROBES static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr) @@ -95,6 +96,10 @@ 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. @@ -169,6 +174,7 @@ 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 @@ -320,6 +326,13 @@ 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 @@ -338,6 +351,7 @@ 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) @@ -376,6 +390,14 @@ 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. |