vt: make vc_data pointers const in selection.h

There are many functions declared in selection.h which only read from
struct vc_data passed as a parameter. Make all those uses const to hint
the compiler a bit.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20200818085706.12163-1-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2020-08-18 10:56:51 +02:00 committed by Greg Kroah-Hartman
parent 2b2dd9c6ac
commit d73568c4cc
7 changed files with 22 additions and 18 deletions

View file

@ -74,7 +74,7 @@ struct consw {
enum vc_intensity intensity,
bool blink, bool underline, bool reverse, bool italic);
void (*con_invert_region)(struct vc_data *vc, u16 *p, int count);
u16 *(*con_screen_pos)(struct vc_data *vc, int offset);
u16 *(*con_screen_pos)(const struct vc_data *vc, int offset);
unsigned long (*con_getxy)(struct vc_data *vc, unsigned long position,
int *px, int *py);
/*

View file

@ -17,7 +17,8 @@
#ifdef CONFIG_CONSOLE_TRANSLATIONS
struct vc_data;
extern u16 inverse_translate(struct vc_data *conp, int glyph, int use_unicode);
extern u16 inverse_translate(const struct vc_data *conp, int glyph,
int use_unicode);
extern unsigned short *set_translate(int m, struct vc_data *vc);
extern int conv_uni_to_pc(struct vc_data *conp, long ucs);
extern u32 conv_8bit_to_uni(unsigned char c);

View file

@ -33,21 +33,23 @@ extern unsigned char default_red[];
extern unsigned char default_grn[];
extern unsigned char default_blu[];
extern unsigned short *screen_pos(struct vc_data *vc, int w_offset, int viewed);
extern u16 screen_glyph(struct vc_data *vc, int offset);
extern u32 screen_glyph_unicode(struct vc_data *vc, int offset);
extern unsigned short *screen_pos(const struct vc_data *vc, int w_offset,
int viewed);
extern u16 screen_glyph(const struct vc_data *vc, int offset);
extern u32 screen_glyph_unicode(const struct vc_data *vc, int offset);
extern void complement_pos(struct vc_data *vc, int offset);
extern void invert_screen(struct vc_data *vc, int offset, int count, int shift);
extern void getconsxy(struct vc_data *vc, unsigned char *p);
extern void getconsxy(const struct vc_data *vc, unsigned char *p);
extern void putconsxy(struct vc_data *vc, unsigned char *p);
extern u16 vcs_scr_readw(struct vc_data *vc, const u16 *org);
extern u16 vcs_scr_readw(const struct vc_data *vc, const u16 *org);
extern void vcs_scr_writew(struct vc_data *vc, u16 val, u16 *org);
extern void vcs_scr_updated(struct vc_data *vc);
extern int vc_uniscr_check(struct vc_data *vc);
extern void vc_uniscr_copy_line(struct vc_data *vc, void *dest, int viewed,
extern void vc_uniscr_copy_line(const struct vc_data *vc, void *dest,
int viewed,
unsigned int row, unsigned int col,
unsigned int nr);