Commit 380aec8a authored Jul 30, 2022 by Greg Kroah-Hartman

ANDROID: add tty_schedule_flip() back to the kernel



Commit 2ea77b0b ("tty: drop tty_schedule_flip()") removed
tty_schedule_flip() as all in-kernel users were properly converted over
to use tty_flip_buffer_push(), but this function still needs to be here
for older out-of-tree Android-only drivers to preserve the ABI.

So provide a wrapper function for it to keep them alive for now.

Bug: 161946584
Fixes: 2ea77b0b ("tty: drop tty_schedule_flip()")
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8893f07cf68bc3502ac6f0f7f0a26b0eec3726a2

parent b1e3be07

drivers/tty/tty_buffer.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -643,3 +643,9 @@ void tty_buffer_flush_work(struct tty_port *port)
		{
		flush_work(&port->buf.work);
		}

		void tty_schedule_flip(struct tty_port *port)
		{
		tty_flip_buffer_push(port);
		}
		EXPORT_SYMBOL(tty_schedule_flip);

include/linux/tty_flip.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -42,4 +42,5 @@ extern void tty_buffer_unlock_exclusive(struct tty_port *port);
		int tty_insert_flip_string_and_push_buffer(struct tty_port *port,
		const unsigned char *chars, size_t cnt);

		void tty_schedule_flip(struct tty_port *port);
		#endif /* _LINUX_TTY_FLIP_H */