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From: Ralf Baechle <ralf@linux-mips.org>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: macro@linux-mips.org, u1@terran.org, linux-mips@linux-mips.org,
	netdev@vger.kernel.org
Subject: Re: [PATCH] MIPS checksum fix
Date: Sat, 20 Sep 2008 17:09:14 +0200	[thread overview]
Message-ID: <20080920150914.GA7725@linux-mips.org> (raw)
In-Reply-To: <20080919.230952.128619158.anemo@mba.ocn.ne.jp>

On Fri, Sep 19, 2008 at 11:09:52PM +0900, Atsushi Nemoto wrote:

> I think it would be better splitting bugfix and optimization.  This
> code is too complex to do many things at a time, isn't it?
> 
> > @@ -53,12 +53,14 @@
> >  #define UNIT(unit)  ((unit)*NBYTES)
> >  
> >  #define ADDC(sum,reg)						\
> > -	.set	push;						\
> > -	.set	noat;						\
> >  	ADD	sum, reg;					\
> >  	sltu	v1, sum, reg;					\
> >  	ADD	sum, v1;					\
> > -	.set	pop
> 
> Is this required?  Just a cleanup?

It papers over potencially important warnings so had to go.  I argue the
caller of ADDC should set noat mode, if at all.

  Ralf

  parent reply	other threads:[~2008-09-20 15:09 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <072748C6-07A9-4167-A8A5-80D0F7D9C784@darkforest.org>
2008-09-17  5:15 ` MIPS checksum bug Bryan Phillippe
2008-09-17 10:40   ` Maciej W. Rozycki
2008-09-17 13:23     ` Atsushi Nemoto
2008-09-17 14:46       ` Maciej W. Rozycki
2008-09-17 15:27         ` Atsushi Nemoto
2008-09-17 18:21           ` Maciej W. Rozycki
2008-09-18 22:07             ` Ralf Baechle
2008-09-19 10:12               ` Maciej W. Rozycki
2008-09-19 11:23                 ` Ralf Baechle
2008-09-19 11:47                   ` [PATCH] MIPS checksum fix Ralf Baechle
2008-09-19 12:07                     ` Ralf Baechle
2008-09-19 12:15                       ` Maciej W. Rozycki
2008-09-19 14:09                       ` Atsushi Nemoto
2008-09-19 15:02                         ` Maciej W. Rozycki
2008-09-20 15:09                         ` Ralf Baechle [this message]
2008-09-23 21:52                       ` Bryan Phillippe
2008-09-23 22:06                         ` Ralf Baechle
2008-09-29 15:28                         ` Atsushi Nemoto
2008-09-19 12:26                   ` MIPS checksum bug Maciej W. Rozycki
2008-09-19 16:04                     ` Bryan Phillippe
2008-09-17 22:52       ` Bryan Phillippe
2008-09-18 16:17         ` Atsushi Nemoto
2008-09-19  1:14           ` Ralf Baechle
2008-09-19 15:43           ` Atsushi Nemoto
2008-09-19 16:09             ` Maciej W. Rozycki
2008-09-19 16:35               ` Thiemo Seufer
2008-09-19 23:18                 ` Maciej W. Rozycki
2008-09-20  0:13               ` Ralf Baechle
2008-09-20 13:45                 ` Atsushi Nemoto
2008-09-18  4:43     ` Bryan Phillippe
2008-09-18 10:06       ` Maciej W. Rozycki

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