From: John Ogness <john.ogness@linutronix.de>
Date: Mon, 9 Oct 2023 13:55:19 +0000
Subject: [PATCH 06/48] printk: Add notation to console_srcu locking
kernel/printk/printk.c:284:5: sparse: sparse: context imbalance in
'console_srcu_read_lock' - wrong count at exit
include/linux/srcu.h:301:9: sparse: sparse: context imbalance in
'console_srcu_read_unlock' - unexpected unlock
Fixes: 6c4afa79147e ("printk: Prepare for SRCU console list protection")
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
kernel/printk/printk.c | 2 ++
1 file changed, 2 insertions(+)
Index: linux-6.8.2-rt10/kernel/printk/printk.c
===================================================================
@ linux-6.8.2-rt10/kernel/printk/printk.c:285 @ EXPORT_SYMBOL(console_list_unlock);
* Return: A cookie to pass to console_srcu_read_unlock().
*/
int console_srcu_read_lock(void)
+ __acquires(&console_srcu)
{
return srcu_read_lock_nmisafe(&console_srcu);
}
@ linux-6.8.2-rt10/kernel/printk/printk.c:299 @ EXPORT_SYMBOL(console_srcu_read_lock);
* Counterpart to console_srcu_read_lock()
*/
void console_srcu_read_unlock(int cookie)
+ __releases(&console_srcu)
{
srcu_read_unlock_nmisafe(&console_srcu, cookie);
}