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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Jörn Engel" <joern@wohnheim.fh-wedel.de>
Cc: Kronos <kronos@kronoz.cjb.net>,
	Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: [4KSTACK][2.6.6] Stack overflow in radeonfb
Date: Fri, 14 May 2004 08:56:21 +1000	[thread overview]
Message-ID: <1084488980.1935.119.camel@gaston> (raw)
In-Reply-To: <20040513151549.GB31123@wohnheim.fh-wedel.de>


> --- linux-2.6/drivers/video/aty/radeon_base.c~	2004-05-13 16:51:08.000000000 +0200
> +++ linux-2.6/drivers/video/aty/radeon_base.c	2004-05-13 16:55:09.000000000 +0200
> @@ -1397,7 +1397,7 @@
>  {
>  	struct radeonfb_info *rinfo = info->par;
>  	struct fb_var_screeninfo *mode = &info->var;
> -	struct radeon_regs newmode;
> +	static struct radeon_regs newmode;
>  	int hTotal, vTotal, hSyncStart, hSyncEnd,
>  	    hSyncPol, vSyncStart, vSyncEnd, vSyncPol, cSync;
>  	u8 hsync_adj_tab[] = {0, 0x12, 9, 9, 6, 5};
> 
> I'm not sure what the point behind the radeon_write_mode() is at all.
> The best solution could be to just merge radeon_write_mode() and
> radeonfb_set_par() into a single function and do the tons of OUTREG()
> directly.  In that case, don't bother to fix any typos

No, they should stay separate functions. I may use write_mode in a
different way in the future (like restoring previous mode on module
unload for example) and I'm very much against merging 2 already too big
function into one huge horror.

Ben.
 


  parent reply	other threads:[~2004-05-13 22:58 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-13 13:48 [4KSTACK][2.6.6] Stack overflow in radeonfb Kronos
2004-05-13 14:03 ` Kronos
2004-05-13 14:56 ` Kronos
2004-05-13 15:15   ` Jörn Engel
2004-05-13 15:36     ` Valdis.Kletnieks
2004-05-13 16:02       ` Jörn Engel
2004-05-13 22:56     ` Benjamin Herrenschmidt [this message]
2004-05-14 10:00       ` Jörn Engel
2004-05-13 22:55   ` Benjamin Herrenschmidt
2004-05-14  1:21     ` Andrew Morton
2004-05-14  3:26       ` Randy.Dunlap
2004-05-14  9:49       ` Arjan van de Ven
2004-05-14 11:47         ` Jörn Engel
2004-05-14 22:15           ` Andrew Morton
2004-05-14 22:56             ` Chris Wright
2004-05-14 23:18               ` Andrew Morton
2004-05-14 23:19                 ` Chris Wright
2004-05-14 23:48                   ` Andrew Morton
2004-05-17 10:53                     ` Jörn Engel
2004-05-15  7:19             ` Arjan van de Ven
2004-05-17 23:35             ` Matt Mackall
2004-05-17 23:59               ` Andrew Morton
2004-05-26 10:06                 ` Jörn Engel
2004-05-26 10:08                   ` Jörn Engel
2004-05-19 10:28               ` William Lee Irwin III
2004-05-19 12:01                 ` William Lee Irwin III
2004-05-26 10:17                   ` Jörn Engel
     [not found]               ` <20040518051745.GK2151@krispykreme>
     [not found]                 ` <20040518171136.GC28735@waste.org>
     [not found]                   ` <20040518171959.GQ2151@krispykreme>
     [not found]                     ` <20040518174734.GE28735@waste.org>
2004-05-26 10:14                       ` Jörn Engel
2004-05-14 16:41     ` Kronos
2004-05-14 21:48       ` Benjamin Herrenschmidt
2004-05-14 22:34         ` Andrew Morton
2004-05-14 22:36           ` Benjamin Herrenschmidt

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