lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 13 Dec 2019 00:06:35 +0000 From: Dmitry Safonov <dima@...sta.com> To: linux-kernel@...r.kernel.org Cc: Dmitry Safonov <0x7f454c46@...il.com>, Dmitry Safonov <dima@...sta.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jslaby@...e.com>, Vasiliy Khoruzhick <vasilykh@...sta.com>, linux-serial@...r.kernel.org Subject: [PATCH 36/58] tty/serial: Migrate sa1100 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. Signed-off-by: Dmitry Safonov <dima@...sta.com> --- drivers/tty/serial/sa1100.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/tty/serial/sa1100.c b/drivers/tty/serial/sa1100.c index 8e618129e65c..75c2a22895f9 100644 --- a/drivers/tty/serial/sa1100.c +++ b/drivers/tty/serial/sa1100.c @@ -7,10 +7,6 @@ * Copyright (C) 2000 Deep Blue Solutions Ltd. */ -#if defined(CONFIG_SERIAL_SA1100_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -#define SUPPORT_SYSRQ -#endif - #include <linux/module.h> #include <linux/ioport.h> #include <linux/init.h> @@ -214,9 +210,7 @@ sa1100_rx_chars(struct sa1100_port *sport) else if (status & UTSR1_TO_SM(UTSR1_FRE)) flg = TTY_FRAME; -#ifdef SUPPORT_SYSRQ sport->port.sysrq = 0; -#endif } if (uart_handle_sysrq_char(&sport->port, ch)) @@ -860,6 +854,7 @@ static int sa1100_serial_resume(struct platform_device *dev) static int sa1100_serial_add_one_port(struct sa1100_port *sport, struct platform_device *dev) { sport->port.dev = &dev->dev; + sport->port.has_sysrq = IS_ENABLED(CONFIG_SERIAL_SA1100_CONSOLE); // mctrl_gpio_init() requires that the GPIO driver supports interrupts, // but we need to support GPIO drivers for hardware that has no such -- 2.24.0
Powered by blists - more mailing lists