From: Jiri Slaby <jslaby@xxxxxxx> commit e587e8f17433ddb26954f0edf5b2f95c42155ae9 upstream. These two were macros. Switch them to static inlines, so that it's more understandable what they are doing. Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> Link: https://lore.kernel.org/r/20200219073951.16151-2-jslaby@xxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/tty/vt/vt_ioctl.c | 29 ++++++++++++++++++++++------- 1 file changed, 22 insertions(+), 7 deletions(-) --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -39,10 +39,25 @@ #include <linux/selection.h> 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_is_sel(vc_cons[i].d)) +static inline bool vt_in_use(unsigned int i) +{ + extern struct tty_driver *console_driver; + + return console_driver->ttys[i] && console_driver->ttys[i]->count; +} + +static inline bool vt_busy(int i) +{ + if (vt_in_use(i)) + return true; + if (i == fg_console) + return true; + if (vc_is_sel(vc_cons[i].d)) + return true; + + return false; +} /* * Console (vt and kd) routines, as defined by USL SVR4 manual, and by @@ -292,7 +307,7 @@ static int vt_disallocate(unsigned int v int ret = 0; console_lock(); - if (VT_BUSY(vc_num)) + if (vt_busy(vc_num)) ret = -EBUSY; else if (vc_num) vc = vc_deallocate(vc_num); @@ -314,7 +329,7 @@ static void vt_disallocate_all(void) console_lock(); for (i = 1; i < MAX_NR_CONSOLES; i++) - if (!VT_BUSY(i)) + if (!vt_busy(i)) vc[i] = vc_deallocate(i); else vc[i] = NULL; @@ -651,7 +666,7 @@ int vt_ioctl(struct tty_struct *tty, state = 1; /* /dev/tty0 is always open */ for (i = 0, mask = 2; i < MAX_NR_CONSOLES && mask; ++i, mask <<= 1) - if (VT_IS_IN_USE(i)) + if (vt_in_use(i)) state |= mask; ret = put_user(state, &vtstat->v_state); } @@ -664,7 +679,7 @@ int vt_ioctl(struct tty_struct *tty, case VT_OPENQRY: /* FIXME: locking ? - but then this is a stupid API */ for (i = 0; i < MAX_NR_CONSOLES; ++i) - if (! VT_IS_IN_USE(i)) + if (!vt_in_use(i)) break; uival = i < MAX_NR_CONSOLES ? (i+1) : -1; goto setint;
