diff options
| author | Tony Luck <tony.luck@intel.com> | 2020-10-06 14:09:06 -0700 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-10-07 11:08:59 +0200 |
| commit | a05d54c41ecfa1a322b229b4e5ce50c157284f74 (patch) | |
| tree | c5c0852daccf221f05a801f167e3850f4efb7754 /arch/x86/include | |
| parent | 41ce0564bfe2e129d56730418d8c0a9f9f2d31b5 (diff) | |
x86/mce: Provide method to find out the type of an exception handler
Avoid a proliferation of ex_has_*_handler() functions by having just
one function that returns the type of the handler (if any).
Drop the __visible attribute for this function. It is not called
from assembler so the attribute is not necessary.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20201006210910.21062-3-tony.luck@intel.com
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/extable.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/include/asm/extable.h b/arch/x86/include/asm/extable.h index d8c2198d543b..1f0cbc52937c 100644 --- a/arch/x86/include/asm/extable.h +++ b/arch/x86/include/asm/extable.h @@ -29,10 +29,17 @@ struct pt_regs; (b)->handler = (tmp).handler - (delta); \ } while (0) +enum handler_type { + EX_HANDLER_NONE, + EX_HANDLER_FAULT, + EX_HANDLER_UACCESS, + EX_HANDLER_OTHER +}; + extern int fixup_exception(struct pt_regs *regs, int trapnr, unsigned long error_code, unsigned long fault_addr); extern int fixup_bug(struct pt_regs *regs, int trapnr); -extern bool ex_has_fault_handler(unsigned long ip); +extern enum handler_type ex_get_fault_handler_type(unsigned long ip); extern void early_fixup_exception(struct pt_regs *regs, int trapnr); #endif |