Re: [RFC] x86: merge nmi_32-64 to nmi.c

Cyrill Gorcunov
2008-05-18T12:10:46Z

[Tom Spink - Sun, May 18, 2008 at 01:07:37PM +0100]
| 2008/5/18 Cyrill Gorcunov <gorcunov@gmail.com>:
| > [Andi Kleen - Sun, May 18, 2008 at 12:25:42PM +0200]
| > | Cyrill Gorcunov wrote:
| > |
| > | > yes, but what to do with absence of __nmi_count on 32bit and die_nmi
| > | > uses different number of args? gcc follows both pathes anyway trying
| > | > to evaluate where I prefer it would not... I mean I've got errors
| > | > on compiling procedue 'cause of different number of args for die_nmi
| > | > used in 32bit mode. That is why I've asked Thomas if it possible to
| > | > add "panic" boot option for 32bit mode and make it familiar with 64bit
| > | > mode and merge them eventually.
| > |
| > | Sorry just pointed out why the Kconfig idea doesn't work, nothing more.
| > |
| > | If you want to avoid ifdefs then you have to unify the functionality
| > | first. Putting syntactical sugar on ifdefs doesn't make sense.
| > |
| > | I haven't kept track of the exact state of the code, but if the per cpu
| > | data macros are finally as efficient as the PDA you could move the
| > | nmi_count to per_cpu in both for once.
| > |
| > | -Andi
| > |
| >
| > ok, thanks
| >
| > - Cyrill -
| >
|
| It looks, though, that the unification of traps_{32,64}.c might help
| eliminate some of these conditionals. After a quick glance, at the
| traps source, certainly the __die_nmi helper might even be eliminated.
|
| --
| Regards,
| Tom Spink
|

yes, I've already unified them so I use single form for both cases. I'll
send updated version on the week probably.

- Cyrill -