linux-kernel - Re: [PATCH 1/1] [RFC] ethernet: Convert from tasklet to BH workqueue

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Date: Tue, 7 May 2024 12:27:10 -0700
From: Allen <allen.lkml@...il.com>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: Allen Pais <apais@...ux.microsoft.com>, netdev@...r.kernel.org, 
	jes@...ined-monkey.org, davem@...emloft.net, edumazet@...gle.com, 
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Subject: Re: [PATCH 1/1] [RFC] ethernet: Convert from tasklet to BH workqueue

On Tue, May 7, 2024 at 12:23 PM Russell King (Oracle)
<linux@...linux.org.uk> wrote:
>
> On Tue, May 07, 2024 at 07:01:11PM +0000, Allen Pais wrote:
> > The only generic interface to execute asynchronously in the BH context is
> > tasklet; however, it's marked deprecated and has some design flaws. To
> > replace tasklets, BH workqueue support was recently added. A BH workqueue
> > behaves similarly to regular workqueues except that the queued work items
> > are executed in the BH context.
> >
> > This patch converts drivers/ethernet/* from tasklet to BH workqueue.
>
> I doubt you're going to get many comments on this patch, being so large
> and spread across all drivers. I'm not going to bother trying to edit
> this down to something more sensible, I'll just plonk my comment here.
>
> For the mvpp2 driver, you're only updating a comment - and looking at
> it, the comment no longer reflects the code. It doesn't make use of
> tasklets at all. That makes the comment wrong whether or not it's
> updated. So I suggest rather than doing a search and replace for
> "tasklet" to "BH blahblah" (sorry, I don't remember what you replaced
> it with) just get rid of that bit of the comment.
>

 Thank you Russell.

 I will get rid of the comment. If it helps, I can create a patch for each
driver. We did that in the past, with this series, I thought it would be
easier to apply one patch.

Thanks,

       - Allen