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

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Message-ID: <20250117203309.192072-1-hamzamahfooz@linux.microsoft.com>
Date: Fri, 17 Jan 2025 15:33:06 -0500
From: Hamza Mahfooz <hamzamahfooz@...ux.microsoft.com>
To: linux-hyperv@...r.kernel.org
Cc: Hamza Mahfooz <hamzamahfooz@...ux.microsoft.com>,
	Michael Kelley <mhklinux@...look.com>,
	"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
Subject: [PATCH v5 1/3] cpu: export lockdep_assert_cpus_held()

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