linux-kernel - Re: [PATCH v5 1/3] cpu: export lockdep_assert_cpus

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Message-ID: <Z6uoNyg72p8bDNE_@hm-sls2>
Date: Tue, 11 Feb 2025 14:42:47 -0500
From: Hamza Mahfooz <hamzamahfooz@...ux.microsoft.com>
To: Michael Kelley <mhklinux@...look.com>
Cc: "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 1/3] cpu: export lockdep_assert_cpus_held()

ping?

On Wed, Jan 22, 2025 at 03:37:44PM +0000, Michael Kelley wrote:
> From: Hamza Mahfooz <hamzamahfooz@...ux.microsoft.com> Sent: Friday, January 17, 2025 12:33 PM
> > 
> > If CONFIG_HYPERV=m, lockdep_assert_cpus_held() is undefined for HyperV.
> > So, export the function so that GPL drivers can use it more broadly.
> > 
> > Cc: Michael Kelley <mhklinux@...look.com>
> > Signed-off-by: Hamza Mahfooz <hamzamahfooz@...ux.microsoft.com>
> > ---
> > v5: new to the series
> > ---
> >  kernel/cpu.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/kernel/cpu.c b/kernel/cpu.c
> > index b605334f8ee6..d3c848d66908 100644
> > --- a/kernel/cpu.c
> > +++ b/kernel/cpu.c
> > @@ -526,6 +526,7 @@ void lockdep_assert_cpus_held(void)
> > 
> >  	percpu_rwsem_assert_held(&cpu_hotplug_lock);
> >  }
> > +EXPORT_SYMBOL_GPL(lockdep_assert_cpus_held);
> > 
> >  #ifdef CONFIG_LOCKDEP
> >  int lockdep_is_cpus_held(void)
> > --
> > 2.47.1
> 
> This series should have been posted as "v6" since "v5" was posted on
> January 16th.  That notwithstanding,
> 
> Reviewed-by: Michael Kelley <mhklinux@...look.com>
> Tested-by: Michael Kelley <mhklinux@...look.com>
>