Linux-SPI Archive on
 help / color / Atom feed
From: Andy Shevchenko <>
To: Mark Brown <>
Subject: Re: [PATCH v1 2/2] spi: Avoid potential UB when counting unused native CSs
Date: Tue, 20 Apr 2021 18:07:06 +0300
Message-ID: <> (raw)
In-Reply-To: <>

On Tue, Apr 20, 2021 at 03:56:16PM +0100, Mark Brown wrote:
> On Tue, Apr 20, 2021 at 05:10:04PM +0300, Andy Shevchenko wrote:
> > ffz(), that has been used to count unused native CSs, might produce UB
> Bit of an IA there...

UB -- undefined behaviour.
I'll decode it. Should I decode CS as well?

With Best Regards,
Andy Shevchenko

  reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-20 14:10 [PATCH v1 1/2] spi: Allow to have all native CSs in use along with GPIOs Andy Shevchenko
2021-04-20 14:10 ` [PATCH v1 2/2] spi: Avoid potential UB when counting unused native CSs Andy Shevchenko
2021-04-20 14:56   ` Mark Brown
2021-04-20 15:07     ` Andy Shevchenko [this message]
2021-04-20 15:22       ` Mark Brown

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-SPI Archive on

Archives are clonable:
	git clone --mirror linux-spi/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-spi linux-spi/ \
	public-inbox-index linux-spi

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone