linux-kernel - RE: [PATCH 2/3] x86/vector: Replace IRQ_MOVE_CLEANUP

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Date:   Tue, 20 Jun 2023 17:30:41 +0000
From:   "Li, Xin3" <xin3.li@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "platform-driver-x86@...r.kernel.org" 
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        "yangtiezhu@...ngson.cn" <yangtiezhu@...ngson.cn>
Subject: RE: [PATCH 2/3] x86/vector: Replace IRQ_MOVE_CLEANUP_VECTOR with a
 timer callback

> > +/*
> > + * Called with vector_lock held
> > + */
> 
> Such a comment is patently bad.
> 
> > +static void __vector_cleanup(struct vector_cleanup *cl, bool
> > +check_irr)
> >  {
>         ....
> 
>         lockdep_assert_held(&vector_lock);
> 
> Documents the requirement clearly _and_ catches any caller which does not hold
> the lock when lockdep is enabled.

Peter Z gave the same comment, I will address in the next iteration.

Thanks!
  Xin