Thread (4 messages) 4 messages, 2 authors, 2017-02-21
STALE3436d

[PATCH] tty/serial: atmel: remove cache when unnecessary

From: Alexandre Belloni <hidden>
Date: 2017-02-21 12:04:28
Also in: linux-arm-kernel, lkml
Subsystem: microchip at91 serial driver, the rest, tty layer and serial drivers · Maintainers: Richard Genoud, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby

struct cache is only used in suspend/resume. Exclude it when PM is not
selected.

Suggested-by: Richard Genoud <redacted>
Signed-off-by: Alexandre Belloni <redacted>
---
 drivers/tty/serial/atmel_serial.c | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index dcebb28ffbc4..f0d4894267c2 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -175,6 +175,7 @@ struct atmel_uart_port {
 	unsigned int		pending_status;
 	spinlock_t		lock_suspended;
 
+#ifdef CONFIG_PM
 	struct {
 		u32		cr;
 		u32		mr;
@@ -185,6 +186,7 @@ struct atmel_uart_port {
 		u32		fmr;
 		u32		fimr;
 	} cache;
+#endif
 
 	int (*prepare_rx)(struct uart_port *port);
 	int (*prepare_tx)(struct uart_port *port);
-- 
2.11.0
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help