Re: [PATCH] leds: trigger: netdev: Fix kernel panic on interface rename trig notify

From: Christian Marangi
Date: Mon Feb 05 2024 - 09:41:40 EST


On Mon, Feb 05, 2024 at 02:33:59PM +0000, Lee Jones wrote:
> On Mon, 05 Feb 2024, Christian Marangi wrote:
>
> > On Mon, Feb 05, 2024 at 02:41:46PM +0100, Andrew Lunn wrote:
> > > > > This should have 'net' in the subject line, to indicate which tree its
> > > > > for.
> > > >
> > > > No, it shouldn't.
> > > >
> > > > Contributors aren't obliged to know anything about merging strategies.
> > >
> > > With netdev, we tend to assume they do, or at least can contribute to
> > > the discussion. They often know about any dependencies etc which could
> > > influence the decision. When there are multiple subsystem maintainers
> > > involved, i tend to use To: to indicate the maintainer i think should
> > > merge the patch, and Cc: for the rest.
> > >
> >
> > I'm always a bit confused when I have to send patch to mixed subsystem
> > (not the case but for net trigger it's almost that). Sorry for the
> > confusion/noise.
>
> When you have a truly cross-subsystem patch, it's up to you.
>
> - Mention both e.g. leds/net:
> - Mention neither e.g. <device>:
> - Mention the one that is most relevant
>
> An example of the last option might be when the lion's share of the
> changes occur in one subsystem and only header files are changed in the
> other.
>
> In an ideal world i.e. when there are no build-time/runtime deps between
> them, changes should be separated out into their own commits.
>

Thanks a lot for the explaination and the examples!

> > > > Why does this need to go in via net?
> > >
> > > It does not, as far as i'm aware. Christian, do you know of any
> > > reason?
> > >
> >
> > This is strictly a fix, no dependency or anything like that. Maybe using
> > net as target would make this faster to merge (since net is for fix only
> > and this has to be backported) than using leds-next?
>
> We have leds-fixes for that.
>

Oh! No idea, should I add a tag to the patch to target that branch
specifically?

Anyway Since we have leds-fixes and this is leds related I think it's ok
to use that and don't disturb net subsystem.

(again IT IS a kernel panic but happens only on some specific situation
so it's not that critical)

--
Ansuel