serial: doc: Use port->state instead of info

As of commit ebd2c8f6d2ec4012 ("serial: kill off uart_info"), the
circular transmission buffer is part of struct uart_state instead of
struct uart_info. Make it clear this structure is pointed to from struct
uart_port.

Change 'circ' to 'circ_buf' to match the structure name while we're at
it.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index 90889c7..da193e0 100644 (file)
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -48,8 +48,8 @@ data:
 
        port->mctrl
        port->icount
-       info->xmit.head (circ->head)
-       info->xmit.tail (circ->tail)
+       port->state->xmit.head (circ_buf->head)
+       port->state->xmit.tail (circ_buf->tail)
 
 The low level driver is free to use this lock to provide any additional
 locking.
@@ -204,7 +204,7 @@ hardware.
        RTS nor DTR; this will have already been done via a separate
        call to set_mctrl.
 
-       Drivers must not access port->info once this call has completed.
+       Drivers must not access port->state once this call has completed.
 
        This method will only be called when there are no more users of
        this port.
@@ -216,7 +216,7 @@ hardware.
        Flush any write buffers, reset any DMA state and stop any
        ongoing DMA transfers.
 
-       This will be called whenever the port->info->xmit circular
+       This will be called whenever the port->state->xmit circular
        buffer is cleared.
 
        Locking: port->lock taken.