From: Pavel Machek <pavel@ucw.cz>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Jiri Slaby <jirislaby@gmail.com>,
mingo@redhat.com, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] Mark early_printk as asmlinkage
Date: Fri, 14 Mar 2008 19:04:01 +0100 [thread overview]
Message-ID: <20080314180401.GA6722@ucw.cz> (raw)
In-Reply-To: <47D7E2FB.2020801@zytor.com>
On Wed 2008-03-12 15:04:43, H. Peter Anvin wrote:
> Jiri Slaby wrote:
> >It's not explicitly marked as asmlinkage, but invoked
> >from x86_32
> >startup code with parameters on stack.
> >
> >No other architectures define early_printk and none of
> >them are affected
> >by this change, since defines asmlinkage as empty token.
>
> NAK.
>
> The regparm ABI for x86-32 uses parameters on the stack
> when the function is varadic (as it is here), so this is
> unnecessary.
I'd call asmlinkage kind of documentation, then. Not everyone is as
good with x86 abi as you are...
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2008-03-14 18:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-12 13:53 [PATCH] Arch: x86_32, fix fault_msg nul termination Jiri Slaby
2008-03-12 13:53 ` [PATCH] Mark early_printk as asmlinkage Jiri Slaby
2008-03-12 14:04 ` H. Peter Anvin
2008-03-12 14:07 ` Jiri Slaby
2008-03-12 14:21 ` H. Peter Anvin
2008-03-14 18:04 ` Pavel Machek [this message]
2008-03-14 18:39 ` H. Peter Anvin
2008-03-21 12:25 ` Ingo Molnar
2008-03-21 11:50 ` [PATCH] Arch: x86_32, fix fault_msg nul termination Ingo Molnar
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