diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2020-08-18 10:56:51 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-18 13:45:20 +0200 |
| commit | d73568c4ccb01d01e20cd23fefbff8e4a05ddfac (patch) | |
| tree | 961f3b223b4227a4ed3969f24ea68c67dd2c630d /drivers/tty/vt/vt.c | |
| parent | 2b2dd9c6ac41cc975fedc82fc871cbff1fb7f711 (diff) | |
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>
Diffstat (limited to 'drivers/tty/vt/vt.c')
| -rw-r--r-- | drivers/tty/vt/vt.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index ccb533fd00a2..8f283221330e 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -283,7 +283,8 @@ static inline bool con_should_update(const struct vc_data *vc) return con_is_visible(vc) && !console_blanked; } -static inline unsigned short *screenpos(struct vc_data *vc, int offset, int viewed) +static inline unsigned short *screenpos(const struct vc_data *vc, int offset, + int viewed) { unsigned short *p; @@ -543,7 +544,7 @@ int vc_uniscr_check(struct vc_data *vc) * This must be preceded by a successful call to vc_uniscr_check() once * the console lock has been taken. */ -void vc_uniscr_copy_line(struct vc_data *vc, void *dest, int viewed, +void vc_uniscr_copy_line(const struct vc_data *vc, void *dest, int viewed, unsigned int row, unsigned int col, unsigned int nr) { struct uni_screen *uniscr = get_vc_uniscr(vc); @@ -4740,7 +4741,7 @@ int con_font_op(struct vc_data *vc, struct console_font_op *op) */ /* used by selection */ -u16 screen_glyph(struct vc_data *vc, int offset) +u16 screen_glyph(const struct vc_data *vc, int offset) { u16 w = scr_readw(screenpos(vc, offset, 1)); u16 c = w & 0xff; @@ -4751,7 +4752,7 @@ u16 screen_glyph(struct vc_data *vc, int offset) } EXPORT_SYMBOL_GPL(screen_glyph); -u32 screen_glyph_unicode(struct vc_data *vc, int n) +u32 screen_glyph_unicode(const struct vc_data *vc, int n) { struct uni_screen *uniscr = get_vc_uniscr(vc); @@ -4762,13 +4763,13 @@ u32 screen_glyph_unicode(struct vc_data *vc, int n) EXPORT_SYMBOL_GPL(screen_glyph_unicode); /* used by vcs - note the word offset */ -unsigned short *screen_pos(struct vc_data *vc, int w_offset, int viewed) +unsigned short *screen_pos(const struct vc_data *vc, int w_offset, int viewed) { return screenpos(vc, 2 * w_offset, viewed); } EXPORT_SYMBOL_GPL(screen_pos); -void getconsxy(struct vc_data *vc, unsigned char *p) +void getconsxy(const struct vc_data *vc, unsigned char *p) { /* clamp values if they don't fit */ p[0] = min(vc->state.x, 0xFFu); @@ -4782,7 +4783,7 @@ void putconsxy(struct vc_data *vc, unsigned char *p) set_cursor(vc); } -u16 vcs_scr_readw(struct vc_data *vc, const u16 *org) +u16 vcs_scr_readw(const struct vc_data *vc, const u16 *org) { if ((unsigned long)org == vc->vc_pos && softcursor_original != -1) return softcursor_original; |