On Mon, Aug 27, 2012 at 10:44:40PM +0530, Naveen N. Rao wrote:
> Looks good. Infact, I had actually added mce_ser and mce_disabled
> into the bitfield, but backed off not wanting to overdo.
>
> We could pull in all the other configuration parameters into this
> structure as long as everyone is ok with this.
Well, if you'd like, you can make one change per patch so that they can
be easily reviewable.
> >diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
> >index a3ac52b29cbf..e5cfd241e508 100644
> >--- a/arch/x86/include/asm/mce.h
> >+++ b/arch/x86/include/asm/mce.h
> >@@ -126,7 +126,6 @@ struct mce_log {
> > #define K8_MCE_THRESHOLD_BANK_5 (MCE_THRESHOLD_BASE + 5 * 9)
> > #define K8_MCE_THRESHOLD_DRAM_ECC (MCE_THRESHOLD_BANK_4 + 0)
> >
> >-
> > #ifdef __KERNEL__
> >
> > extern void mce_register_decode_chain(struct notifier_block *nb);
> >@@ -169,8 +168,6 @@ DECLARE_PER_CPU(struct device *, mce_device);
> > #define MAX_NR_BANKS 32
> >
> > #ifdef CONFIG_X86_MCE_INTEL
> >-extern int mce_cmci_disabled;
> >-extern int mce_ignore_ce;
> > void mce_intel_feature_init(struct cpuinfo_x86 *c);
> > void cmci_clear(void);
> > void cmci_reenable(void);
> >diff --git a/arch/x86/kernel/cpu/mcheck/mce-internal.h
> >b/arch/x86/kernel/cpu/mcheck/mce-internal.h
> >index 6a05c1d327a9..3b25bcf452d9 100644
> >--- a/arch/x86/kernel/cpu/mcheck/mce-internal.h
> >+++ b/arch/x86/kernel/cpu/mcheck/mce-internal.h
> >@@ -28,6 +28,15 @@ extern int mce_ser;
> >
> > extern struct mce_bank *mce_banks;
> >
> >+struct mce_cfg {
> >+ __u32 cmci_disabled : 1,
> >+ ignore_ce : 1,
> >+ dont_log_ce : 1,
> >+ __pad : 29;
> >+};
> >+
> >+extern struct mce_cfg cfg;
> >+
>
> I'd prefer mce_cfg, rather than just cfg. I think it looks clearer
> to say, for instance, mce_ser.ignore_ce rather than just
> cfg.ignore_ce where the latter looks more like a global thing. But,
> of course, the former is more concise...
Yes,
* it is more consise
* it is private to mce so no ambiguity
* having identical struct name and variable names is very confusing (at least
to me)
so you can do
extern struct mce_cfg m_cfg;
or
extern struct mce_config mcfg;
or similar but please keep struct name and variable name different.
Thanks.
--
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Boris.
Advanced Micro Devices GmbH
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