From 56676fb5e9e61aa216759cf05fb55edd45a67c14 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 19 Feb 2020 08:39:43 +0100 Subject: [PATCH] vt: selection, introduce vc_is_sel commit dce05aa6eec977f1472abed95ccd71276b9a3864 upstream. Avoid global variables (namely sel_cons) by introducing vc_is_sel. It checks whether the parameter is the current selection console. This will help putting sel_cons to a struct later. Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20200219073951.16151-1-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman --- drivers/tty/vt/selection.c | 5 +++++ drivers/tty/vt/vt.c | 7 ++++--- drivers/tty/vt/vt_ioctl.c | 2 +- include/linux/selection.h | 4 +++- 4 files changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/tty/vt/selection.c b/drivers/tty/vt/selection.c index 91ffe3f2b8a0..8687b17f6cf0 100644 --- a/drivers/tty/vt/selection.c +++ b/drivers/tty/vt/selection.c @@ -83,6 +83,11 @@ void clear_selection(void) } } +bool vc_is_sel(struct vc_data *vc) +{ + return vc == sel_cons; +} + /* * User settable table: what characters are to be considered alphabetic? * 128 bits. Locked by the console lock. diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 826433af4bdd..1cbe89e5338c 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -584,8 +584,9 @@ static void hide_softcursor(struct vc_data *vc) static void hide_cursor(struct vc_data *vc) { - if (vc == sel_cons) + if (vc_is_sel(vc)) clear_selection(); + vc->vc_sw->con_cursor(vc, CM_ERASE); hide_softcursor(vc); } @@ -595,7 +596,7 @@ static void set_cursor(struct vc_data *vc) if (!con_is_fg(vc) || console_blanked || vc->vc_mode == KD_GRAPHICS) return; if (vc->vc_deccm) { - if (vc == sel_cons) + if (vc_is_sel(vc)) clear_selection(); add_softcursor(vc); if ((vc->vc_cursor_type & 0x0f) != 1) @@ -873,7 +874,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc, if (!newscreen) return -ENOMEM; - if (vc == sel_cons) + if (vc_is_sel(vc)) clear_selection(); old_rows = vc->vc_rows; diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c index c320fefab360..b46b76f80f22 100644 --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -43,7 +43,7 @@ char vt_dont_switch; extern struct tty_driver *console_driver; #define VT_IS_IN_USE(i) (console_driver->ttys[i] && console_driver->ttys[i]->count) -#define VT_BUSY(i) (VT_IS_IN_USE(i) || i == fg_console || vc_cons[i].d == sel_cons) +#define VT_BUSY(i) (VT_IS_IN_USE(i) || i == fg_console || vc_is_sel(vc_cons[i].d)) /* * Console (vt and kd) routines, as defined by USL SVR4 manual, and by diff --git a/include/linux/selection.h b/include/linux/selection.h index 5b278ce99d8d..35937a61da06 100644 --- a/include/linux/selection.h +++ b/include/linux/selection.h @@ -13,8 +13,8 @@ struct tty_struct; -extern struct vc_data *sel_cons; struct tty_struct; +struct vc_data; extern void clear_selection(void); extern int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *tty); @@ -23,6 +23,8 @@ extern int sel_loadlut(char __user *p); extern int mouse_reporting(void); extern void mouse_report(struct tty_struct * tty, int butt, int mrx, int mry); +bool vc_is_sel(struct vc_data *vc); + extern int console_blanked; extern const unsigned char color_table[]; -- 2.20.1