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console: move console_init() out of tty_io.c

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All the console driver handling code lives in printk.c.
Move console_init() there as well so console support can still be used
when the TTY code is configured out. No logical changes from this patch.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nicolas Pitre 2017-04-12 18:37:14 -04:00 committed by Greg Kroah-Hartman
parent 72f1b85a04
commit 0c688614dc
5 changed files with 31 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/tty/tty_io.c
View File

@ -3584,30 +3584,6 @@ void tty_default_fops(struct file_operations *fops)
*fops = tty_fops;
}
/*
* Initialize the console device. This is called *early*, so
* we can't necessarily depend on lots of kernel help here.
* Just do some early initializations, and do the complex setup
* later.
*/
void __init console_init(void)
{
initcall_t *call;
/* Setup the default TTY line discipline. */
n_tty_init();
/*
* set up the console device so that later boot sequences can
* inform about problems etc..
*/
call = __con_initcall_start;
while (call < __con_initcall_end) {
(*call)();
call++;
}
}
static char *tty_devnode(struct device *dev, umode_t *mode)
{
if (!mode)

2
include/linux/console.h
View File

@ -212,4 +212,6 @@ extern bool vgacon_text_force(void);
static inline bool vgacon_text_force(void) { return false; }
#endif
extern void console_init(void);
#endif /* _LINUX_CONSOLE_H */

7
include/linux/tty.h
View File

@ -390,7 +390,6 @@ static inline bool tty_throttled(struct tty_struct *tty)
}
#ifdef CONFIG_TTY
extern void console_init(void);
extern void tty_kref_put(struct tty_struct *tty);
extern struct pid *tty_get_pgrp(struct tty_struct *tty);
extern void tty_vhangup_self(void);
@ -402,8 +401,6 @@ extern struct tty_struct *get_current_tty(void);
extern int __init tty_init(void);
extern const char *tty_name(const struct tty_struct *tty);
#else
static inline void console_init(void)
{ }
static inline void tty_kref_put(struct tty_struct *tty)
{ }
static inline struct pid *tty_get_pgrp(struct tty_struct *tty)
@ -669,7 +666,11 @@ extern int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,
/* n_tty.c */
extern void n_tty_inherit_ops(struct tty_ldisc_ops *ops);
#ifdef CONFIG_TTY
extern void __init n_tty_init(void);
#else
static inline void n_tty_init(void) { }
#endif
/* tty_audit.c */
#ifdef CONFIG_AUDIT

2
init/main.c
View File

@ -27,7 +27,7 @@
#include <linux/initrd.h>
#include <linux/bootmem.h>
#include <linux/acpi.h>
#include <linux/tty.h>
#include <linux/console.h>
#include <linux/nmi.h>
#include <linux/percpu.h>
#include <linux/kmod.h>

24
kernel/printk/printk.c
View File

@ -2610,6 +2610,30 @@ int unregister_console(struct console *console)
}
EXPORT_SYMBOL(unregister_console);
/*
* Initialize the console device. This is called *early*, so
* we can't necessarily depend on lots of kernel help here.
* Just do some early initializations, and do the complex setup
* later.
*/
void __init console_init(void)
{
initcall_t *call;
/* Setup the default TTY line discipline. */
n_tty_init();
/*
* set up the console device so that later boot sequences can
* inform about problems etc..
*/
call = __con_initcall_start;
while (call < __con_initcall_end) {
(*call)();
call++;
}
}
/*
* Some boot consoles access data that is in the init section and which will
* be discarded after the initcalls have been run. To make sure that no code