From: Greg KH <gregkh@linuxfoundation.org>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Koen Vandeputte <koen.vandeputte@citymesh.com>,
linux-can@vger.kernel.org, wg@grandegger.com,
netdev@vger.kernel.org, qiangqing.zhang@nxp.com
Subject: Re: flexcan introduced a DIV/0 in kernel
Date: Fri, 9 Apr 2021 13:32:47 +0200 [thread overview]
Message-ID: <YHA7X5w8cLuelWll@kroah.com> (raw)
In-Reply-To: <27f66de1-42bc-38d9-8a1c-7062eb359958@pengutronix.de>
On Fri, Apr 09, 2021 at 01:21:05PM +0200, Marc Kleine-Budde wrote:
> On 4/9/21 12:18 PM, Koen Vandeputte wrote:
> > Hi All,
> >
> > I just updated kernel 4.14 within OpenWRT from 4.14.224 to 4.14.229
> > Booting it shows the splat below on each run. [1]
> >
> >
> > It seems there are 2 patches regarding flexcan which were introduced in
> > 4.14.226
> >
> > --> ce59ffca5c49 ("can: flexcan: enable RX FIFO after FRZ/HALT valid")
> > --> bb7c9039a396 ("can: flexcan: assert FRZ bit in flexcan_chip_freeze()")
> >
> > Reverting these fixes the splat.
>
> This patch should fix the problem:
>
> 47c5e474bc1e can: flexcan: flexcan_chip_freeze(): fix chip freeze for missing
> bitrate
>
> Greg, can you pick this up for v4.14?
Now queued up, thanks.
greg k-h
next prev parent reply other threads:[~2021-04-09 12:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 10:18 flexcan introduced a DIV/0 in kernel Koen Vandeputte
2021-04-09 11:21 ` Marc Kleine-Budde
2021-04-09 11:32 ` Greg KH [this message]
2021-04-09 12:55 ` Koen Vandeputte
2021-04-09 13:10 ` Marc Kleine-Budde
2021-04-09 13:27 ` Greg KH
2021-04-12 1:56 ` Joakim Zhang
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=YHA7X5w8cLuelWll@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=koen.vandeputte@citymesh.com \
--cc=linux-can@vger.kernel.org \
--cc=mkl@pengutronix.de \
--cc=netdev@vger.kernel.org \
--cc=qiangqing.zhang@nxp.com \
--cc=wg@grandegger.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 NNTP newsgroup(s).