[PATCH 42/45] tty: vt: remove unused consw::con_flush_scrollback()

Jiri Slaby (SUSE)
2024-01-18T07:59:34Z

consw::con_flush_scrollback() is unused since commit 973c096f6a85
(vgacon: remove software scrollback support). Drop it.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
---
drivers/tty/vt/vt.c | 27 ++++++++++++---------------
include/linux/console.h | 4 ----
2 files changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 539b30e198a9..35d303017653 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -888,21 +888,18 @@ static void flush_scrollback(struct vc_data *vc)
WARN_CONSOLE_UNLOCKED();

set_origin(vc);
- if (vc->vc_sw->con_flush_scrollback) {
- vc->vc_sw->con_flush_scrollback(vc);
- } else if (con_is_visible(vc)) {
- /*
- * When no con_flush_scrollback method is provided then the
- * legacy way for flushing the scrollback buffer is to use
- * a side effect of the con_switch method. We do it only on
- * the foreground console as background consoles have no
- * scrollback buffers in that case and we obviously don't
- * want to switch to them.
- */
- hide_cursor(vc);
- vc->vc_sw->con_switch(vc);
- set_cursor(vc);
- }
+ if (!con_is_visible(vc))
+ return;
+
+ /*
+ * The legacy way for flushing the scrollback buffer is to use a side
+ * effect of the con_switch method. We do it only on the foreground
+ * console as background consoles have no scrollback buffers in that
+ * case and we obviously don't want to switch to them.
+ */
+ hide_cursor(vc);
+ vc->vc_sw->con_switch(vc);
+ set_cursor(vc);
}

/*
diff --git a/include/linux/console.h b/include/linux/console.h
index c0525ccc54d9..698a2f7576b0 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -104,10 +104,6 @@ struct consw {
enum vc_intensity intensity,
bool blink, bool underline, bool reverse, bool italic);
void (*con_invert_region)(struct vc_data *vc, u16 *p, int count);
- /*
- * Flush the video console driver's scrollback buffer
- */
- void (*con_flush_scrollback)(struct vc_data *vc);
/*
* Prepare the console for the debugger. This includes, but is not
* limited to, unblanking the console, loading an appropriate
--
2.43.0