Commit 7fc11a52 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Petr Mladek
Browse files

printk: Remove write only variable nr_ext_console_drivers 



Commit a699449b ("printk: refactor and rework printing logic")
removed the need for @nr_ext_console_drivers. Remove the unneeded
variable.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarJohn Ogness <john.ogness@linutronix.de>
Reviewed-by: default avatarSergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: default avatarPetr Mladek <pmladek@suse.com>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarPetr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220924000454.3319186-4-john.ogness@linutronix.de
parent e3f12f06

kernel/printk/printk.c

+0 −9
Original line number Diff line number Diff line
@@ -220,9 +220,6 @@ int devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write, 
}

#endif /* CONFIG_PRINTK && CONFIG_SYSCTL */



/* Number of registered extended console drivers. */

static int nr_ext_console_drivers;



/*

 * Helper macros to handle lockdep when locking/unlocking console_sem. We use

 * macros instead of functions so that _RET_IP_ contains useful information.
@@ -3188,9 +3185,6 @@ void register_console(struct console *newcon) 
		console_drivers->next = newcon;

	}



	if (newcon->flags & CON_EXTENDED)

		nr_ext_console_drivers++;



	newcon->dropped = 0;

	if (newcon->flags & CON_PRINTBUFFER) {

		/* Get a consistent copy of @syslog_seq. */
@@ -3256,9 +3250,6 @@ int unregister_console(struct console *console) 
	if (res)

		goto out_disable_unlock;



	if (console->flags & CON_EXTENDED)

		nr_ext_console_drivers--;



	/*

	 * If this isn't the last console and it has CON_CONSDEV set, we

	 * need to set it on the next preferred console.