From: Dan Carpenter <dan.carpenter@oracle.com>
To: David Laight <David.Laight@ACULAB.COM>
Cc: Martin Kaiser <martin@kaiser.cx>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Larry Finger <Larry.Finger@lwfinger.net>,
Phillip Potter <phil@philpotter.co.uk>,
Michael Straube <straube.linux@gmail.com>,
"linux-staging@lists.linux.dev" <linux-staging@lists.linux.dev>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] staging: r8188eu: remove local BIT macro
Date: Mon, 21 Mar 2022 12:07:24 +0300 [thread overview]
Message-ID: <20220321090724.GI336@kadam> (raw)
In-Reply-To: <188ea71f265a4f9c968de68dc9ea6464@AcuMS.aculab.com>
On Mon, Mar 21, 2022 at 09:04:46AM +0000, David Laight wrote:
> From: Dan Carpenter
> > Sent: 21 March 2022 08:16
> >
> > This version is better, thanks!
> >
> > Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
> >
> > What the GCC devs should have done is run their checker on real code and
> > silence the common false positives. There are a few ways to do this.
> > You could make ~ a special case. They already ignore truncated sign
> > extension so they could equally well ignore truncation when all it's a
> > 32 bits which are all set to 1. Probably the best answer is to do both.
>
> Or start using -(BIT_VALUE + 1) instead of ~BIT_VALUE :-)
>
You are a bad person. :P
regards,
dan carpenter
prev parent reply other threads:[~2022-03-21 9:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-19 18:03 [PATCH] staging: r8188eu: remove local BIT macro Martin Kaiser
2022-03-19 22:35 ` David Laight
2022-03-21 9:06 ` Dan Carpenter
2022-03-21 9:14 ` David Laight
2022-03-21 9:34 ` Martin Kaiser
2022-03-21 8:15 ` Dan Carpenter
2022-03-21 9:04 ` David Laight
2022-03-21 9:07 ` Dan Carpenter [this message]
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