Re: [PATCH 1/3] x86, msr: add rd/wrmsr interfaces with preset registers

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* Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:

> On Thu, 03 Sep 2009 15:57:54 -0700
> "H. Peter Anvin" <hpa@xxxxxxxxx> wrote:
> 
> > On 09/03/2009 03:55 PM, Andrew Morton wrote:
> > > On Mon, 31 Aug 2009 09:50:09 +0200
> > > Borislav Petkov <petkovbb@xxxxxxxxxxxxxx> wrote:
> > > 
> > >> +.macro op_safe_regs op:req
> > > 
> > > Using
> > > 
> > > GNU assembler 2.16.1
> > > 
> > > I get
> > > 
> > > arch/x86/lib/msr-reg.S: Assembler messages:
> > > arch/x86/lib/msr-reg.S:53: Error: Bad macro parameter list
> > > arch/x86/lib/msr-reg.S:100: Error: invalid character '_' in mnemonic
> > > arch/x86/lib/msr-reg.S:101: Error: invalid character '_' in mnemonic
> > > 
> > > this:
> > > 
> > > diff -puN arch/x86/lib/msr-reg.S~a arch/x86/lib/msr-reg.S
> > > --- a/arch/x86/lib/msr-reg.S~a
> > > +++ a/arch/x86/lib/msr-reg.S
> > > @@ -50,7 +50,7 @@ ENDPROC(native_\op\()_safe_regs)
> > >  
> > >  #else /* X86_32 */
> > >  
> > > -.macro op_safe_regs op:req
> > > +.macro op_safe_regs op
> > >  ENTRY(native_\op\()_safe_regs)
> > >         CFI_STARTPROC
> > >         pushl_cfi %ebx
> > > 
> > > 
> > > fixed it.
> > 
> > Yup, already fixed in -tip.
> > 
> 
> <looks>
> 
> Three days ago.  linux-next is still busted.

No, the 32-bit ancient-binutils bug you have hit here was found and 
fixed ~8 hours ago, by me, and i pushed the fix out immediately. 
(and this happened before you wrote this mail and the fix was posted 
to lkml as well.)

> I want my five minutes back.

I too want my five minutes back that i spent researching commit logs 
and writing this email ;-)

Btw., we could save much more if we avoided this whole 'break the 
kernel then fix it' infinite loop that kernel development is 
ultimately about ;-)

	Ingo
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