linux-kernel - Re: kill misleading comments in trampoline

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Date:	Fri, 1 Feb 2008 02:05:09 +0100
From:	Pavel Machek <pavel@....cz>
To:	Yinghai Lu <yhlu.kernel@...il.com>
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: kill misleading comments in trampoline_*.S

On Thu 2008-01-31 17:02:29, Yinghai Lu wrote:
> On Jan 31, 2008 4:54 PM, Pavel Machek <pavel@....cz> wrote:
> >
> >
> > Both trampolines actually *do* set up stack. (Is the "we jump into
> > compressed/head.S" comment still true?)
> >
> > Signed-off-by: Pavel Machek <pavel@...e.cz>
> >
> > diff --git a/arch/x86/kernel/trampoline_32.S b/arch/x86/kernel/trampoline_32.S
> > index 9bcc1c6..5398547 100644
> > --- a/arch/x86/kernel/trampoline_32.S
> > +++ b/arch/x86/kernel/trampoline_32.S
> > @@ -11,9 +11,6 @@
> >   *     trampoline page to make our stack and everything else
> >   *     is a mystery.
> >   *
> > - *     In fact we don't actually need a stack so we don't
> > - *     set one up.
> > - *
> >   *     We jump into the boot/compressed/head.S code. So you'd
> >   *     better be running a compressed kernel image or you
> >   *     won't get very far.
> 
> should be arch/x86/kernel/head_32.S

Thanks, fixed in my local copy. But that's separate problem. ;-).

								Pavel

diff --git a/arch/x86/kernel/trampoline_32.S b/arch/x86/kernel/trampoline_32.S
index 9bcc1c6..6458067 100644
--- a/arch/x86/kernel/trampoline_32.S
+++ b/arch/x86/kernel/trampoline_32.S
@@ -11,12 +11,7 @@
  *	trampoline page to make our stack and everything else
  *	is a mystery.
  *
- *	In fact we don't actually need a stack so we don't
- *	set one up.
- *
- *	We jump into the boot/compressed/head.S code. So you'd
- *	better be running a compressed kernel image or you
- *	won't get very far.
+ *	We jump into arch/x86/kernel/head_32.S.
  *
  *	On entry to trampoline_data, the processor is in real mode
  *	with 16-bit addressing and 16-bit data.  CS has some value
diff --git a/arch/x86/kernel/trampoline_64.S b/arch/x86/kernel/trampoline_64.S
index e30b67c..4aedd0b 100644
--- a/arch/x86/kernel/trampoline_64.S
+++ b/arch/x86/kernel/trampoline_64.S
@@ -10,9 +10,6 @@
  *	trampoline page to make our stack and everything else
  *	is a mystery.
  *
- *	In fact we don't actually need a stack so we don't
- *	set one up.
- *
  *	On entry to trampoline_data, the processor is in real mode
  *	with 16-bit addressing and 16-bit data.  CS has some value
  *	and IP is zero.  Thus, data addresses need to be absolute


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