cpu: export lockdep_assert_cpus_held()

effective-light · liuw · commit 7c0db8a4f59d · 2025-02-13T23:43:57.000Z
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@outlook.com> Signed-off-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Michael Kelley <mhklinux@outlook.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20250117203309.192072-1-hamzamahfooz@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <20250117203309.192072-1-hamzamahfooz@linux.microsoft.com>
diff --git 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)

Original file line number	Diff line number	Diff line change
`@@ -526,6 +526,7 @@ void lockdep_assert_cpus_held(void)`
`526`	`526`
`527`	`527`	`percpu_rwsem_assert_held(&cpu_hotplug_lock);`
`528`	`528`	`}`
	`529`	`+EXPORT_SYMBOL_GPL(lockdep_assert_cpus_held);`
`529`	`530`
`530`	`531`	`#ifdef CONFIG_LOCKDEP`
`531`	`532`	`int lockdep_is_cpus_held(void)`