diff options
Diffstat (limited to 'arch/loongarch/mm/extable.c')
| -rw-r--r-- | arch/loongarch/mm/extable.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/arch/loongarch/mm/extable.c b/arch/loongarch/mm/extable.c index bc20988f2b87..08a9a7d6357a 100644 --- a/arch/loongarch/mm/extable.c +++ b/arch/loongarch/mm/extable.c @@ -3,20 +3,32 @@ * Copyright (C) 2020-2022 Loongson Technology Corporation Limited */ #include <linux/extable.h> -#include <linux/spinlock.h> -#include <asm/branch.h> #include <linux/uaccess.h> +#include <asm/asm-extable.h> +#include <asm/branch.h> + +static inline unsigned long +get_ex_fixup(const struct exception_table_entry *ex) +{ + return ((unsigned long)&ex->fixup + ex->fixup); +} -int fixup_exception(struct pt_regs *regs) +static bool ex_handler_fixup(const struct exception_table_entry *ex, + struct pt_regs *regs) { - const struct exception_table_entry *fixup; + regs->csr_era = get_ex_fixup(ex); - fixup = search_exception_tables(exception_era(regs)); - if (fixup) { - regs->csr_era = fixup->fixup; + return true; +} + + +bool fixup_exception(struct pt_regs *regs) +{ + const struct exception_table_entry *ex; - return 1; - } + ex = search_exception_tables(exception_era(regs)); + if (!ex) + return false; - return 0; + return ex_handler_fixup(ex, regs); } |