[PATCH 15/38] vt: move rescan_last_byte label earlier

[Jiri Slaby]

This removes duplicated initialization of variables (after reordering
'c' initialization).

It will also allow for eliminating whole translation into a separate
function in the next patch.

Note that vc_state, vc_utf etc. are checked with every rescan now. But
they are immutable for non-control characters where rescan might be
only necessary.

Signed-off-by: Jiri Slaby <jsl...@suse.cz>
---
 drivers/tty/vt/vt.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index bf171bb1d2fd..93ad7e004900 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2717,10 +2717,11 @@ static int do_con_write(struct tty_struct *tty, const 
unsigned char *buf, int co
 
        while (!tty->stopped && count) {
                int orig = *buf;
-               c = orig;
                buf++;
                n++;
                count--;
+rescan_last_byte:
+               c = orig;
                rescan = false;
                inverse = false;
                width = 1;
@@ -2729,7 +2730,6 @@ static int do_con_write(struct tty_struct *tty, const 
unsigned char *buf, int co
                if (vc->vc_state != ESnormal) {
                        tc = c;
                } else if (vc->vc_utf && !vc->vc_disp_ctrl) {
-rescan_last_byte:
                        tc = c = vc_translate_unicode(vc, c, &rescan);
                        if (tc == -1)
                                continue;
@@ -2834,13 +2834,9 @@ static int do_con_write(struct tty_struct *tty, const 
unsigned char *buf, int co
                        if (inverse)
                                con_flush(vc, draw_from, draw_to, &draw_x);
 
-                       if (rescan) {
-                               rescan = false;
-                               inverse = false;
-                               width = 1;
-                               c = orig;
+                       if (rescan)
                                goto rescan_last_byte;
-                       }
+
                        continue;
                }
                con_flush(vc, draw_from, draw_to, &draw_x);
-- 
2.27.0