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

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Message-ID:
 <SN6PR02MB41574DAE9F22C9D67D66B5F7D4E12@SN6PR02MB4157.namprd02.prod.outlook.com>
Date: Wed, 22 Jan 2025 15:37:44 +0000
From: Michael Kelley <mhklinux@...look.com>
To: Hamza Mahfooz <hamzamahfooz@...ux.microsoft.com>,
	"linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>
CC: "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()

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>