From: Dmitry Safonov <dima@arista.com>
Date: Fri, 13 Dec 2019 00:06:44 +0000 (+0000)
Subject: tty/serial: Migrate sunhv to use has_sysrq
X-Git-Tag: v5.10.7~3371^2~77
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b071126bd8323c478ca1464d065bb1a254b15310;p=platform%2Fkernel%2Flinux-rpi.git

tty/serial: Migrate sunhv to use has_sysrq

The SUPPORT_SYSRQ ifdeffery is not nice as:
- May create misunderstanding about sizeof(struct uart_port) between
  different objects
- Prevents moving functions from serial_core.h
- Reduces readability (well, it's ifdeffery - it's hard to follow)

In order to remove SUPPORT_SYSRQ, has_sysrq variable has been added.
Initialise it in driver's probe and remove ifdeffery.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: Dmitry Safonov <dima@arista.com>
Link: https://lore.kernel.org/r/20191213000657.931618-46-dima@arista.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c
index f8503f8..eafada8 100644
--- a/drivers/tty/serial/sunhv.c
+++ b/drivers/tty/serial/sunhv.c
@@ -25,10 +25,6 @@
 #include <asm/irq.h>
 #include <asm/setup.h>
 
-#if defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
 #include <linux/serial_core.h>
 #include <linux/sunserialcore.h>
 
@@ -552,6 +548,7 @@ static int hv_probe(struct platform_device *op)
 
 	sunhv_port = port;
 
+	port->has_sysrq = 1;
 	port->line = 0;
 	port->ops = &sunhv_pops;
 	port->type = PORT_SUNHV;