Commit 7e1e71d1 authored by Peter Hurley's avatar Peter Hurley Committed by Greg Kroah-Hartman
Browse files

tty: Remove tty_prepare_flip_string_flags() 



There is no in-tree user of tty_prepare_flip_string_flags(); remove.

Signed-off-by: default avatarPeter Hurley <peter@hurleysoftware.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5dda4ca5

drivers/tty/tty_buffer.c

+0 −28
Original line number Diff line number Diff line
@@ -373,34 +373,6 @@ int tty_prepare_flip_string(struct tty_port *port, unsigned char **chars, 
}

EXPORT_SYMBOL_GPL(tty_prepare_flip_string);



/**

 *	tty_prepare_flip_string_flags	-	make room for characters

 *	@port: tty port

 *	@chars: return pointer for character write area

 *	@flags: return pointer for status flag write area

 *	@size: desired size

 *

 *	Prepare a block of space in the buffer for data. Returns the length

 *	available and buffer pointer to the space which is now allocated and

 *	accounted for as ready for characters. This is used for drivers

 *	that need their own block copy routines into the buffer. There is no

 *	guarantee the buffer is a DMA target!

 */



int tty_prepare_flip_string_flags(struct tty_port *port,

			unsigned char **chars, char **flags, size_t size)

{

	int space = tty_buffer_request_room(port, size);

	if (likely(space)) {

		struct tty_buffer *tb = port->buf.tail;

		*chars = char_buf_ptr(tb, tb->used);

		*flags = flag_buf_ptr(tb, tb->used);

		tb->used += space;

	}

	return space;

}

EXPORT_SYMBOL_GPL(tty_prepare_flip_string_flags);





static int

receive_buf(struct tty_struct *tty, struct tty_buffer *head, int count)

include/linux/tty_flip.h

+0 −2
Original line number Diff line number Diff line
@@ -10,8 +10,6 @@ extern int tty_insert_flip_string_fixed_flag(struct tty_port *port, 
		const unsigned char *chars, char flag, size_t size);

extern int tty_prepare_flip_string(struct tty_port *port,

		unsigned char **chars, size_t size);

extern int tty_prepare_flip_string_flags(struct tty_port *port,

		unsigned char **chars, char **flags, size_t size);

extern void tty_flip_buffer_push(struct tty_port *port);

void tty_schedule_flip(struct tty_port *port);