linux-kernel - Re: [RFC PATCH 17/21] linux/bit_spinlock.h: Include linux/processor.h

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Message-ID: <20200324210808.GA19527@willie-the-truck>
Date:   Tue, 24 Mar 2020 21:08:09 +0000
From:   Will Deacon <will@...nel.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
        Jann Horn <jannh@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        Maddie Stone <maddiestone@...gle.com>,
        Marco Elver <elver@...gle.com>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>, kernel-team@...roid.com,
        kernel-hardening@...ts.openwall.com
Subject: Re: [RFC PATCH 17/21] linux/bit_spinlock.h: Include linux/processor.h

On Tue, Mar 24, 2020 at 05:28:20PM +0100, Greg KH wrote:
> On Tue, Mar 24, 2020 at 03:36:39PM +0000, Will Deacon wrote:
> > Needed for cpu_relax().
> 
> Is this needed now, or for the next patch?  And if for next patch, why
> not just add it then?

If the next patch correctly included linux/list_bl.h like it was supposed
to, then yes, it's needed there. I'll sort that out and fold this in for
v2.

Cheers,

Will