linux-kernel - Re: [PATCH 4/9] USB: Convert from tasklet to BH workqueue

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Message-ID: <CAOMdWS+4T7rw577q9iW_oin8bbVF4m6Mpx-L2riqno5QX_L=WQ@mail.gmail.com>
Date: Thu, 28 Mar 2024 10:54:07 -0700
From: Allen <allen.lkml@...il.com>
To: Alan Stern <stern@...land.harvard.edu>
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Subject: Re: [PATCH 4/9] USB: Convert from tasklet to BH workqueue

> >
> > This patch converts drivers/infiniband/* from tasklet to BH workqueue.
> >
> > Based on the work done by Tejun Heo <tj@...nel.org>
> > Branch: https://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-6.10
> >
> > Signed-off-by: Allen Pais <allen.lkml@...il.com>
> > ---
>
> > diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
> > index c0e005670d67..88d8e1c366cd 100644
> > --- a/drivers/usb/core/hcd.c
> > +++ b/drivers/usb/core/hcd.c
>
> > @@ -1662,10 +1663,9 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
> >       usb_put_urb(urb);
> >  }
> >
> > -static void usb_giveback_urb_bh(struct work_struct *work)
> > +static void usb_giveback_urb_bh(struct work_struct *t)
> >  {
> > -     struct giveback_urb_bh *bh =
> > -             container_of(work, struct giveback_urb_bh, bh);
> > +     struct giveback_urb_bh *bh = from_work(bh, t, bh);
> >       struct list_head local_list;
> >
> >       spin_lock_irq(&bh->lock);
>
> Is there any reason for this apparently pointless change of a local
> variable's name?

 No, it was done just to keep things consistent across the kernel.
I can revert it back to *work if you'd prefer.

Thanks.

>
> Alan Stern
>


-- 
       - Allen