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Date:	Sun, 12 Oct 2014 11:53:32 -0500
From:	Chuck Ebbert <>
To:	"H. Peter Anvin" <>
Cc:	Ingo Molnar <>,
	Thomas Gleixner <>,,
Subject: Re: [PATCH] x86: Clean up stack access code in irq_32.c

On Sun, 12 Oct 2014 09:47:53 -0700
"H. Peter Anvin" <> wrote:

[replying to the list this time, sigh]

> We changed this to asm because the C broke some compilers.  Why are you changing it back?

The C broke some compilers because it was using a global register
variable. This is a local one, which the clang documentation says is
supported. And I compiled it with clang with no problem.

> On October 12, 2014 9:43:53 AM PDT, Chuck Ebbert <> wrote:
> >Use C instead of asm for accessing the stack pointer. And define some
> >macros to make the code easier to understand.
> >
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