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author | Peter Hurley <peter@hurleysoftware.com> | 2013-11-22 18:09:57 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-09 01:57:38 +0100 |
commit | 7e1e71d1546a28ea0ccc06320987e6c4ab2e1dbe (patch) | |
tree | 584807ab33663ce0eab9f5816b70fb27d290d56c /drivers/tty/tty_buffer.c | |
parent | tty: Rename tty buffer memory_used field (diff) | |
download | linux-7e1e71d1546a28ea0ccc06320987e6c4ab2e1dbe.tar.xz linux-7e1e71d1546a28ea0ccc06320987e6c4ab2e1dbe.zip |
tty: Remove tty_prepare_flip_string_flags()
There is no in-tree user of tty_prepare_flip_string_flags(); remove.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_buffer.c')
-rw-r--r-- | drivers/tty/tty_buffer.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index e8f22f833b4e..6a3620e1cc7a 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -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) |