netdev - Re: [net-next 0/6] move CAN skb headroom content to skb extensions

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Message-ID: <20260129-horned-python-of-ampleness-188335-mkl@pengutronix.de>
Date: Thu, 29 Jan 2026 09:42:40 +0100
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: Oliver Hartkopp <socketcan@...tkopp.net>
Cc: Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org, 
	linux-can@...r.kernel.org
Subject: Re: [net-next 0/6] move CAN skb headroom content to skb extensions

On 29.01.2026 08:49:24, Oliver Hartkopp wrote:
> On 29.01.26 07:44, Marc Kleine-Budde wrote:
> > On 28.01.2026 10:07:13, Marc Kleine-Budde wrote:
> > > I'll do. In the mean time, please have a look at b4, it has support for
> > > sending patches via a web hook.
> >
> > Hooray for switching to b4!
>
> Yes! Unfortunately one of the most relevant features does not work:
>
> $ b4 prep --auto-to-cc
> Will collect To: addresses using get_maintainer.pl
> Will collect Cc: addresses using get_maintainer.pl
> Traceback (most recent call last):
>   File "/usr/bin/b4", line 8, in <module>
>     sys.exit(cmd())
>              ~~~^^
>   File "/usr/lib/python3/dist-packages/b4/command.py", line 417, in cmd
>     cmdargs.func(cmdargs)
>     ~~~~~~~~~~~~^^^^^^^^^
>   File "/usr/lib/python3/dist-packages/b4/command.py", line 83, in cmd_prep
>     b4.ez.cmd_prep(cmdargs)
>     ~~~~~~~~~~~~~~^^^^^^^^^
>   File "/usr/lib/python3/dist-packages/b4/ez.py", line 2835, in cmd_prep
>     auto_to_cc()
>     ~~~~~~~~~~^^
>   File "/usr/lib/python3/dist-packages/b4/ez.py", line 2655, in auto_to_cc
>     logger.debug('added %s to seen', ltr.addr[1])
>                                      ~~~~~~~~^^^
> TypeError: 'NoneType' object is not subscriptable
>
>
> $ b4 --version
> 0.14.2

I'm using b4.git https://kernel.googlesource.com/pub/scm/utils/b4/b4.git
and it works for me.

regards,
Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde          |
Embedded Linux                   | https://www.pengutronix.de |
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