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Message-ID: <20060820204328.GV602@1wt.eu>
Date:	Sun, 20 Aug 2006 22:43:28 +0200
From:	Willy Tarreau <w@....eu>
To:	Mikael Pettersson <mikpe@...uu.se>
Cc:	linux-kernel@...r.kernel.org, David Miller <davem@...emloft.net>
Subject: Re: [PATCH 2.4.34-pre1] gcc4 fix for UP sparc64

On Sun, Aug 20, 2006 at 10:18:10PM +0200, Mikael Pettersson wrote:
> This patch fixes an invalid-lvalue error when compiling a
> 2.4.34-pre1 kernel on sparc64 with gcc-4.1.1. The kernel
> must be configured with CONFIG_SMP=n for the error to trigger.

It's a fact that I only checked with SMP.

> (I didn't save the error message, sorry.)

No problem, it's self explained.

> A kernel compiled with gcc-4.1.1 boots fine on my Ultra5
> and can rebuild itself, and generally seems no less solid
> than the 2.4.33 I compiled with gcc-3.4.6.
> 
> Signed-off-by: Mikael Pettersson <mikpe@...uu.se>

Thanks Mikael,

I'm queueing it in my gcc4 tree.
Davem CC'd.

Willy

> --- linux-2.4.34-pre1/arch/sparc64/mm/init.c.~1~	2004-11-17 18:36:41.000000000 +0100
> +++ linux-2.4.34-pre1/arch/sparc64/mm/init.c	2006-08-20 20:52:20.000000000 +0200
> @@ -95,7 +95,7 @@ int do_check_pgt_cache(int low, int high
>                                  if (page2)
>                                          page2->next_hash = page->next_hash;
>                                  else
> -                                        (struct page *)pgd_quicklist = page->next_hash;
> +                                        pgd_quicklist = (unsigned long *)page->next_hash;
>                                  page->next_hash = NULL;
>                                  page->pprev_hash = NULL;
>                                  pgd_cache_size -= 2;

-
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