From: Dmitry Safonov <dima@arista.com>
To: linux-kernel@vger.kernel.org
Cc: Vasiliy Khoruzhick <vasilykh@arista.com>,
Dmitry Safonov <dima@arista.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Dmitry Safonov <0x7f454c46@gmail.com>,
Kevin Hilman <khilman@baylibre.com>,
linux-serial@vger.kernel.org, Jiri Slaby <jslaby@suse.com>,
linux-amlogic@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 21/58] tty/serial: Migrate meson_uart to use has_sysrq
Date: Fri, 13 Dec 2019 00:06:20 +0000 [thread overview]
Message-ID: <20191213000657.931618-22-dima@arista.com> (raw)
In-Reply-To: <20191213000657.931618-1-dima@arista.com>
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: Kevin Hilman <khilman@baylibre.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Signed-off-by: Dmitry Safonov <dima@arista.com>
---
drivers/tty/serial/meson_uart.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index fbc5bc022a39..12e15358554c 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -5,10 +5,6 @@
* Copyright (C) 2014 Carlo Caione <carlo@caione.org>
*/
-#if defined(CONFIG_SERIAL_MESON_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
#include <linux/clk.h>
#include <linux/console.h>
#include <linux/delay.h>
@@ -703,6 +699,7 @@ static int meson_uart_probe(struct platform_device *pdev)
port->mapsize = resource_size(res_mem);
port->irq = res_irq->start;
port->flags = UPF_BOOT_AUTOCONF | UPF_LOW_LATENCY;
+ port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_MESON_CONSOLE);
port->dev = &pdev->dev;
port->line = pdev->id;
port->type = PORT_MESON;
--
2.24.0
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next prev parent reply other threads:[~2019-12-13 0:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-13 0:05 [PATCH 00/58] serial/sysrq: Cleanup ifdeffery Dmitry Safonov
2019-12-13 0:06 ` Dmitry Safonov [this message]
2019-12-13 5:47 ` Christophe Leroy
2019-12-13 16:41 ` Dmitry Safonov
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