Linux-PWM Archive mirror
 help / color / mirror / Atom feed
From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: Paul Cercueil <paul@crapouillou.net>,
	linux-pwm@vger.kernel.org, linux-mips@vger.kernel.org,
	kernel@pengutronix.de
Subject: Re: [PATCH] pwm: jz4740: Add trailing \n to error messages
Date: Mon, 4 Dec 2023 18:12:40 +0100	[thread overview]
Message-ID: <20231204171240.3gnvz3mghhz53cjj@pengutronix.de> (raw)
In-Reply-To: <ZWCaVQXjlBHMW8Jf@orome.fritz.box>

[-- Attachment #1: Type: text/plain, Size: 1861 bytes --]

Hello,

On Fri, Nov 24, 2023 at 01:43:01PM +0100, Thierry Reding wrote:
> On Thu, Nov 23, 2023 at 09:33:23AM +0100, Uwe Kleine-König wrote:
> > Error messages are supposed to end in \n. Add the line terminator to the
> > two error messages that lack this.
> > 
> > Suggested-by: Paul Cercueil <paul@crapouillou.net>
> > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> > ---
> > Hello,
> > 
> > this was noticed by Paul in
> > https://lore.kernel.org/linux-pwm/ba21c20b20364a39d5ffff81dac8bd300a746dbb.camel@crapouillou.net.
> > Instead of sneaking this into a patch that probably won't get applied
> > quickly, make this explicit.
> > 
> > I based it on top of my PR that can be found at
> > https://lore.kernel.org/linux-pwm/20231121112029.gyv3gqirlycysyr4@pengutronix.de,
> > but applies just fine to v6.7-rc1.
> > 
> > If you want a fixes-line, that would be:
> > 
> > Fixes: 485b56f08f33 ("pwm: jz4740: Improve algorithm of clock calculation")
> > 
> > for the first hunk and
> > 
> > Fixes: ce1f9cece057 ("pwm: jz4740: Use clocks from TCU driver")
> > 
> > for the second. If this is backported to something before
> > v5.10-rc1~57^2~11, there is another instance with a missing \n.
> > 
> > Best regards
> > Uwe
> 
> My recollection is that the newlines aren't strictly required because
> printk will typically insert them itself (unless KERN_CONT is involved
> at some point). So I don't think this really fixes anything, but I'm
> willing to pick this up for consistency.

Well, they will behave if the next printk (on the same CPU?) doesn't use
KERN_CONT. So this change fixes a really unlikely race condition.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

  reply	other threads:[~2023-12-04 17:12 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-23  8:33 [PATCH] pwm: jz4740: Add trailing \n to error messages Uwe Kleine-König
2023-11-24 12:43 ` Thierry Reding
2023-12-04 17:12   ` Uwe Kleine-König [this message]
2023-11-28 16:59 ` Thierry Reding

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:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

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

  git send-email \
    --in-reply-to=20231204171240.3gnvz3mghhz53cjj@pengutronix.de \
    --to=u.kleine-koenig@pengutronix.de \
    --cc=kernel@pengutronix.de \
    --cc=linux-mips@vger.kernel.org \
    --cc=linux-pwm@vger.kernel.org \
    --cc=paul@crapouillou.net \
    --cc=thierry.reding@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).