diff options
| author | Don Zickus <dzickus@redhat.com> | 2011-01-06 22:18:52 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-07 15:08:53 +0100 |
| commit | f2fd43954abc058586e95d4eb91e7a5477070704 (patch) | |
| tree | 9dbb3dc10de2145182e879582cb477d55ae9e92b /arch/x86/kernel/traps.c | |
| parent | x86, NMI: Allow NMI reason io port (0x61) to be processed on any CPU (diff) | |
| download | linux-f2fd43954abc058586e95d4eb91e7a5477070704.tar.xz linux-f2fd43954abc058586e95d4eb91e7a5477070704.zip | |
x86, NMI: Clean-up default_do_nmi()
Just re-arrange the code a bit to make it easier to follow what is
going on. Basically un-negating the if-statement and swapping the code
inside the if-statement with code outside.
No functional changes.
Originally-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1294348732-15030-7-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/traps.c')
| -rw-r--r-- | arch/x86/kernel/traps.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 613b3d284a89..b9b67166f9de 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -410,26 +410,24 @@ static notrace __kprobes void default_do_nmi(struct pt_regs *regs) raw_spin_lock(&nmi_reason_lock); reason = get_nmi_reason(); - if (!(reason & NMI_REASON_MASK)) { + if (reason & NMI_REASON_MASK) { + if (reason & NMI_REASON_SERR) + pci_serr_error(reason, regs); + else if (reason & NMI_REASON_IOCHK) + io_check_error(reason, regs); +#ifdef CONFIG_X86_32 + /* + * Reassert NMI in case it became active + * meanwhile as it's edge-triggered: + */ + reassert_nmi(); +#endif raw_spin_unlock(&nmi_reason_lock); - unknown_nmi_error(reason, regs); - return; } - - /* AK: following checks seem to be broken on modern chipsets. FIXME */ - if (reason & NMI_REASON_SERR) - pci_serr_error(reason, regs); - if (reason & NMI_REASON_IOCHK) - io_check_error(reason, regs); -#ifdef CONFIG_X86_32 - /* - * Reassert NMI in case it became active meanwhile - * as it's edge-triggered: - */ - reassert_nmi(); -#endif raw_spin_unlock(&nmi_reason_lock); + + unknown_nmi_error(reason, regs); } dotraplinkage notrace __kprobes void |