GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

printk: Convert console_drivers list to hlist

Browse source 
Replace the open coded single linked list with a hlist so a conversion
to SRCU protected list walks can reuse the existing primitives.

Co-developed-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20221116162152.193147-3-john.ogness@linutronix.de
This commit is contained in:
Thomas Gleixner 2022-11-16 17:27:14 +01:06 • committed by Petr Mladek
parent 9e409c4778
commit d9a4af5690
3 changed files with 62 additions and 50 deletions
Download patch file Download diff file Expand all files Collapse all files

8
include/linux/console.h
View file

@ -15,6 +15,7 @@
#define _LINUX_CONSOLE_H_ 1
#include <linux/atomic.h>
#include <linux/list.h>
#include <linux/types.h>
struct vc_data;
@ -154,14 +155,16 @@ struct console {
u64 seq;
unsigned long dropped;
void *data;
struct console *next;
struct hlist_node node;
};
extern struct hlist_head console_list;
/*
* for_each_console() allows you to iterate on each console
*/
#define for_each_console(con) \
for (con = console_drivers; con != NULL; con = con->next)
hlist_for_each_entry(con, &console_list, node)
extern int console_set_on_cmdline;
extern struct console *early_console;
@ -174,7 +177,6 @@ enum con_flush_mode {
extern int add_preferred_console(char *name, int idx, char *options);
extern void register_console(struct console *);
extern int unregister_console(struct console *);
extern struct console *console_drivers;
extern void console_lock(void);
extern int console_trylock(void);
extern void console_unlock(void);