From: Segher Boessenkool <segher@kernel.crashing.org>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: olof@lixom.net, linuxppc-dev@ozlabs.org,
Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH] atomic_dec_if_positive sign extension fix
Date: Mon, 15 Jan 2007 00:43:43 +0100 [thread overview]
Message-ID: <8efd33607840e2099e327c573b4a9a07@kernel.crashing.org> (raw)
In-Reply-To: <37cdcd37b9252ee18fa458b22e8bdd60@kernel.crashing.org>
> What is this function supposed to do if it gets 0x80000000 as
> input btw? The current code happily makes it 0x7fffffff as
> far as I can see? The "rlwinm" thing would fix that ;-) (Or
> unfix, if the current behaviour is intended).
...except it doesn't change behaviour on 32-bit of
course. Forget it, do one of the other suggested
things instead please :-)
Segher
next prev parent reply other threads:[~2007-01-14 23:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-14 22:55 [PATCH] atomic_dec_if_positive sign extension fix Robert Jennings
2007-01-14 23:09 ` Paul Mackerras
2007-01-14 23:20 ` Olof Johansson
2007-01-14 23:32 ` Segher Boessenkool
2007-01-14 23:43 ` Segher Boessenkool [this message]
2007-01-15 8:55 ` Gabriel Paubert
2007-01-15 16:01 ` Segher Boessenkool
2007-01-16 4:28 ` Gabriel Paubert
2007-01-16 8:36 ` Segher Boessenkool
2007-01-16 18:16 ` [PATCH][v2] " Robert Jennings
2007-01-16 20:08 ` Gabriel Paubert
2007-01-17 16:50 ` [PATCH][v3] " Robert Jennings
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