serial: move the flags into the tty_port field

Fortunately the serial layer was designed to use the same flag values but
with different names. It has its own SUSPENDED flag which is a free slot in
the ASYNC flags so we allocate it in the ASYNC flags instead.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 21 insertions, 29 deletions

diff --git a/include/linux/serial.h b/include/linux/serial.h
index e5bb75a63802..c8613c3ff9d3 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -122,6 +122,7 @@ struct serial_uart_config {
 
 /* Internal flags used only by kernel */
 #define ASYNCB_INITIALIZED      31 /* Serial port was initialized */
+#define ASYNCB_SUSPENDED        30 /* Serial port is suspended */
 #define ASYNCB_NORMAL_ACTIVE    29 /* Normal device is active */
 #define ASYNCB_BOOT_AUTOCONF    28 /* Autoconfigure port on bootup */
 #define ASYNCB_CLOSING          27 /* Serial port is closing */
@@ -133,6 +134,7 @@ struct serial_uart_config {
 #define ASYNCB_FIRST_KERNEL     22
 
 #define ASYNC_HUP_NOTIFY        (1U << ASYNCB_HUP_NOTIFY)
+#define ASYNC_SUSPENDED         (1U << ASYNCB_SUSPENDED)
 #define ASYNC_FOURPORT          (1U << ASYNCB_FOURPORT)
 #define ASYNC_SAK               (1U << ASYNCB_SAK)
 #define ASYNC_SPLIT_TERMIOS     (1U << ASYNCB_SPLIT_TERMIOS)
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 63ad90966db2..284ef7f54890 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -20,6 +20,8 @@
 #ifndef LINUX_SERIAL_CORE_H
 #define LINUX_SERIAL_CORE_H
 
+#include <linux/serial.h>
+
 /*
  * The type definitions.  These are from Ted Ts'o's serial.h
  */
@@ -356,19 +358,6 @@ struct uart_state {
 
         int                     pm_state;
         struct circ_buf         xmit;
-        uif_t                   flags;
-
-/*
- * Definitions for info->flags.  These are _private_ to serial_core, and
- * are specific to this structure.  They may be queried by low level drivers.
- *
- * FIXME: use the ASY_ definitions
- */
-#define UIF_CHECK_CD            ((__force uif_t) (1 << 25))
-#define UIF_CTS_FLOW            ((__force uif_t) (1 << 26))
-#define UIF_NORMAL_ACTIVE       ((__force uif_t) (1 << 29))
-#define UIF_INITIALIZED         ((__force uif_t) (1 << 31))
-#define UIF_SUSPENDED           ((__force uif_t) (1 << 30))
 
         struct tasklet_struct   tlet;
         wait_queue_head_t       delta_msr_wait;
@@ -509,22 +498,23 @@ static inline int uart_handle_break(struct uart_port *port)
  *      @status: new carrier detect status, nonzero if active
  */
 static inline void
-uart_handle_dcd_change(struct uart_port *port, unsigned int status)
+uart_handle_dcd_change(struct uart_port *uport, unsigned int status)
 {
-        struct uart_state *state = port->state;
+        struct uart_state *state = uport->state;
+        struct tty_port *port = &state->port;
 
-        port->icount.dcd++;
+        uport->icount.dcd++;
 
 #ifdef CONFIG_HARD_PPS
-        if ((port->flags & UPF_HARDPPS_CD) && status)
+        if ((uport->flags & UPF_HARDPPS_CD) && status)
                 hardpps();
 #endif
 
-        if (state->flags & UIF_CHECK_CD) {
+        if (port->flags & ASYNC_CHECK_CD) {
                 if (status)
-                        wake_up_interruptible(&state->port.open_wait);
-                else if (state->port.tty)
-                        tty_hangup(state->port.tty);
+                        wake_up_interruptible(&port->open_wait);
+                else if (port->tty)
+                        tty_hangup(port->tty);
         }
 }
 
@@ -534,24 +524,24 @@ uart_handle_dcd_change(struct uart_port *port, unsigned int status)
  *      @status: new clear to send status, nonzero if active
  */
 static inline void
-uart_handle_cts_change(struct uart_port *port, unsigned int status)
+uart_handle_cts_change(struct uart_port *uport, unsigned int status)
 {
-        struct uart_state *state = port->state;
-        struct tty_struct *tty = state->port.tty;
+        struct tty_port *port = &uport->state->port;
+        struct tty_struct *tty = port->tty;
 
-        port->icount.cts++;
+        uport->icount.cts++;
 
-        if (state->flags & UIF_CTS_FLOW) {
+        if (port->flags & ASYNC_CTS_FLOW) {
                 if (tty->hw_stopped) {
                         if (status) {
                                 tty->hw_stopped = 0;
-                                port->ops->start_tx(port);
-                                uart_write_wakeup(port);
+                                uport->ops->start_tx(uport);
+                                uart_write_wakeup(uport);
                         }
                 } else {
                         if (!status) {
                                 tty->hw_stopped = 1;
-                                port->ops->stop_tx(port);
+                                uport->ops->stop_tx(uport);
                         }
                 }
         }