diff options
Diffstat (limited to 'arch/arm/mm/fault.c')
| -rw-r--r-- | arch/arm/mm/fault.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 5fa8dea5a371..cc8829d7e116 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -16,6 +16,7 @@ #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> @@ -24,6 +25,7 @@ #include "fault.h" +#ifdef CONFIG_MMU #ifdef CONFIG_KPROBES static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr) @@ -98,6 +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. @@ -172,6 +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 @@ -323,6 +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 @@ -341,6 +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) @@ -379,6 +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. |