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tty: vt, ignore PIO_UNIMAPCLR param

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We do not do hashtables for unicode fonts since 1995 (1.3.28). So it
is time to remove the second parameter of con_clear_unimap and ignore
the advice from userspace completely.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby
2016-06-23 13:34:36 +02:00
committed by Greg Kroah-Hartman
parent 6ca8dfd781
commit f8b0c2e688
3 changed files with 9 additions and 17 deletions
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5
include/linux/vt_kern.h
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@@ -59,14 +59,13 @@ int tioclinux(struct tty_struct *tty, unsigned long arg);
#ifdef CONFIG_CONSOLE_TRANSLATIONS
/* consolemap.c */
struct unimapinit;
struct unipair;
int con_set_trans_old(unsigned char __user * table);
int con_get_trans_old(unsigned char __user * table);
int con_set_trans_new(unsigned short __user * table);
int con_get_trans_new(unsigned short __user * table);
int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui);
int con_clear_unimap(struct vc_data *vc);
int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list);
int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list);
int con_set_default_unimap(struct vc_data *vc);
@@ -92,7 +91,7 @@ static inline int con_get_trans_new(unsigned short __user *table)
{
return -EINVAL;
}
static inline int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui)
static inline int con_clear_unimap(struct vc_data *vc)
{
return 0;
}