It's a macro accessing and changing some local variables. And the code uses it without appending semicolon which confuses everybody too.
Switch from this bad guy to a sane standard function. Signed-off-by: Jiri Slaby <[email protected]> --- drivers/tty/vt/vt.c | 31 ++++++++++++++++++------------- 1 file changed, 18 insertions(+), 13 deletions(-) diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 600c3bb706a5..6e12d9c0ea41 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -2163,14 +2163,20 @@ static int is_double_width(uint32_t ucs) return bisearch(ucs, double_width, ARRAY_SIZE(double_width) - 1); } +static void con_flush(struct vc_data *vc, unsigned long draw_from, + unsigned long draw_to, int *draw_x) +{ + if (*draw_x < 0) + return; + + vc->vc_sw->con_putcs(vc, (u16 *)draw_from, + (u16 *)draw_to - (u16 *)draw_from, vc->vc_y, *draw_x); + *draw_x = -1; +} + /* acquires console_lock */ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int count) { -#define FLUSH if (draw_x >= 0) { \ - vc->vc_sw->con_putcs(vc, (u16 *)draw_from, (u16 *)draw_to - (u16 *)draw_from, vc->vc_y, draw_x); \ - draw_x = -1; \ - } - int c, tc, ok, n = 0, draw_x = -1; unsigned int currcons; unsigned long draw_from = 0, draw_to = 0; @@ -2362,12 +2368,13 @@ rescan_last_byte: } else { vc_attr = ((vc->vc_attr) & 0x88) | (((vc->vc_attr) & 0x70) >> 4) | (((vc->vc_attr) & 0x07) << 4); } - FLUSH + con_flush(vc, draw_from, draw_to, &draw_x); } while (1) { if (vc->vc_need_wrap || vc->vc_decim) - FLUSH + con_flush(vc, draw_from, draw_to, + &draw_x); if (vc->vc_need_wrap) { cr(vc); lf(vc); @@ -2397,9 +2404,8 @@ rescan_last_byte: } notify_write(vc, c); - if (inverse) { - FLUSH - } + if (inverse) + con_flush(vc, draw_from, draw_to, &draw_x); if (rescan) { rescan = 0; @@ -2410,15 +2416,14 @@ rescan_last_byte: } continue; } - FLUSH + con_flush(vc, draw_from, draw_to, &draw_x); do_con_trol(tty, vc, orig); } - FLUSH + con_flush(vc, draw_from, draw_to, &draw_x); console_conditional_schedule(); console_unlock(); notify_update(vc); return n; -#undef FLUSH } /* -- 2.9.0
