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vt_ioctl: move vt_kdsetmode out of vt_k_ioctl 

It's too long to be inlined.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20200615074910.19267-37-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2020-06-15 09:49:09 +02:00 committed by Greg Kroah-Hartman
parent 7a0ac4b17f
commit a4c53c830b
1 changed files with 43 additions and 35 deletions
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78
drivers/tty/vt/vt_ioctl.c
View File

@ -241,6 +241,47 @@ int vt_waitactive(int n)
#define GPLAST 0x3df
#define GPNUM (GPLAST - GPFIRST + 1)
/*
* currently, setting the mode from KD_TEXT to KD_GRAPHICS doesn't do a whole
* lot. i'm not sure if it should do any restoration of modes or what...
*
* XXX It should at least call into the driver, fbdev's definitely need to
* restore their engine state. --BenH
*/
static int vt_kdsetmode(struct vc_data *vc, unsigned long mode)
{
switch (mode) {
case KD_GRAPHICS:
break;
case KD_TEXT0:
case KD_TEXT1:
mode = KD_TEXT;
fallthrough;
case KD_TEXT:
break;
default:
return -EINVAL;
}
/* FIXME: this needs the console lock extending */
if (vc->vc_mode == mode)
return 0;
vc->vc_mode = mode;
if (vc->vc_num != fg_console)
return 0;
/* explicitly blank/unblank the screen if switching modes */
console_lock();
if (mode == KD_TEXT)
do_unblank_screen(1);
else
do_blank_screen(1);
console_unlock();
return 0;
}
static int vt_k_ioctl(struct tty_struct *tty, unsigned int cmd,
unsigned long arg, bool perm)
{
@ -335,43 +376,10 @@ static int vt_k_ioctl(struct tty_struct *tty, unsigned int cmd,
}
case KDSETMODE:
/*
* currently, setting the mode from KD_TEXT to KD_GRAPHICS
* doesn't do a whole lot. i'm not sure if it should do any
* restoration of modes or what...
*
* XXX It should at least call into the driver, fbdev's definitely
* need to restore their engine state. --BenH
*/
if (!perm)
return -EPERM;
switch (arg) {
case KD_GRAPHICS:
break;
case KD_TEXT0:
case KD_TEXT1:
arg = KD_TEXT;
case KD_TEXT:
break;
default:
return -EINVAL;
}
/* FIXME: this needs the console lock extending */
if (vc->vc_mode == (unsigned char) arg)
break;
vc->vc_mode = (unsigned char) arg;
if (console != fg_console)
break;
/*
* explicitly blank/unblank the screen if switching modes
*/
console_lock();
if (arg == KD_TEXT)
do_unblank_screen(1);
else
do_blank_screen(1);
console_unlock();
break;
return vt_kdsetmode(vc, arg);
case KDGETMODE:
return put_user(vc->vc_mode, (int __user *)arg);