Thread (13 messages) 13 messages, 5 authors, 2010-08-05
STALE5796d

[PATCH 1/3] Input: sysrq - drop tty argument from sysrq ops handlers

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: 2010-08-04 07:59:46
Also in: lkml
Subsystem: arm port, char and misc drivers, drm drivers, drm drivers and misc gpu patches, hibernation (aka software suspend, aka swsusp), linux for powerpc (32-bit and 64-bit), networking drivers, sparc + ultrasparc (sparc/sparc64), suspend to ram, the rest, tty layer and serial drivers · Maintainers: Russell King, Arnd Bergmann, Greg Kroah-Hartman, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, "Rafael J. Wysocki", Madhavan Srinivasan, Michael Ellerman, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Andreas Larsson, Linus Torvalds, Jiri Slaby

Noone is using tty argument so let's get rid of it.

Signed-off-by: Dmitry Torokhov <redacted>
---

 arch/arm/kernel/etm.c           |    2 +-
 arch/powerpc/xmon/xmon.c        |    5 ++---
 arch/sparc/kernel/process_64.c  |    2 +-
 drivers/char/sysrq.c            |   42 ++++++++++++++++++++-------------------
 drivers/gpu/drm/drm_fb_helper.c |    2 +-
 drivers/net/ibm_newemac/debug.c |    2 +-
 include/linux/sysrq.h           |    6 +++++-
 kernel/power/poweroff.c         |    2 +-
 8 files changed, 33 insertions(+), 30 deletions(-)
diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c
index 8277539..7647593 100644
--- a/arch/arm/kernel/etm.c
+++ b/arch/arm/kernel/etm.c
@@ -230,7 +230,7 @@ static void etm_dump(void)
 	etb_lock(t);
 }
 
-static void sysrq_etm_dump(int key, struct tty_struct *tty)
+static void sysrq_etm_dump(int key)
 {
 	dev_dbg(tracer.dev, "Dumping ETB buffer\n");
 	etm_dump();
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 8bad7d5..654e155 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2728,15 +2728,14 @@ static void xmon_init(int enable)
 }
 
 #ifdef CONFIG_MAGIC_SYSRQ
-static void sysrq_handle_xmon(int key, struct tty_struct *tty) 
+static void sysrq_handle_xmon(int key)
 {
 	/* ensure xmon is enabled */
 	xmon_init(1);
 	debugger(get_irq_regs());
 }
 
-static struct sysrq_key_op sysrq_xmon_op = 
-{
+static struct sysrq_key_op sysrq_xmon_op = {
 	.handler =	sysrq_handle_xmon,
 	.help_msg =	"Xmon",
 	.action_msg =	"Entering xmon",
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index dbe81a3..25b01b4 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -303,7 +303,7 @@ void arch_trigger_all_cpu_backtrace(void)
 
 #ifdef CONFIG_MAGIC_SYSRQ
 
-static void sysrq_handle_globreg(int key, struct tty_struct *tty)
+static void sysrq_handle_globreg(int key)
 {
 	arch_trigger_all_cpu_backtrace();
 }
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 878ac0c..a892a3c 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -76,7 +76,7 @@ static int __init sysrq_always_enabled_setup(char *str)
 __setup("sysrq_always_enabled", sysrq_always_enabled_setup);
 
 
-static void sysrq_handle_loglevel(int key, struct tty_struct *tty)
+static void sysrq_handle_loglevel(int key)
 {
 	int i;
 
@@ -93,7 +93,7 @@ static struct sysrq_key_op sysrq_loglevel_op = {
 };
 
 #ifdef CONFIG_VT
-static void sysrq_handle_SAK(int key, struct tty_struct *tty)
+static void sysrq_handle_SAK(int key)
 {
 	struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work;
 	schedule_work(SAK_work);
@@ -109,7 +109,7 @@ static struct sysrq_key_op sysrq_SAK_op = {
 #endif
 
 #ifdef CONFIG_VT
-static void sysrq_handle_unraw(int key, struct tty_struct *tty)
+static void sysrq_handle_unraw(int key)
 {
 	struct kbd_struct *kbd = &kbd_table[fg_console];
 
@@ -126,7 +126,7 @@ static struct sysrq_key_op sysrq_unraw_op = {
 #define sysrq_unraw_op (*(struct sysrq_key_op *)NULL)
 #endif /* CONFIG_VT */
 
-static void sysrq_handle_crash(int key, struct tty_struct *tty)
+static void sysrq_handle_crash(int key)
 {
 	char *killer = NULL;
 
@@ -141,7 +141,7 @@ static struct sysrq_key_op sysrq_crash_op = {
 	.enable_mask	= SYSRQ_ENABLE_DUMP,
 };
 
-static void sysrq_handle_reboot(int key, struct tty_struct *tty)
+static void sysrq_handle_reboot(int key)
 {
 	lockdep_off();
 	local_irq_enable();
@@ -154,7 +154,7 @@ static struct sysrq_key_op sysrq_reboot_op = {
 	.enable_mask	= SYSRQ_ENABLE_BOOT,
 };
 
-static void sysrq_handle_sync(int key, struct tty_struct *tty)
+static void sysrq_handle_sync(int key)
 {
 	emergency_sync();
 }
@@ -165,7 +165,7 @@ static struct sysrq_key_op sysrq_sync_op = {
 	.enable_mask	= SYSRQ_ENABLE_SYNC,
 };
 
-static void sysrq_handle_show_timers(int key, struct tty_struct *tty)
+static void sysrq_handle_show_timers(int key)
 {
 	sysrq_timer_list_show();
 }
@@ -176,7 +176,7 @@ static struct sysrq_key_op sysrq_show_timers_op = {
 	.action_msg	= "Show clockevent devices & pending hrtimers (no others)",
 };
 
-static void sysrq_handle_mountro(int key, struct tty_struct *tty)
+static void sysrq_handle_mountro(int key)
 {
 	emergency_remount();
 }
@@ -188,7 +188,7 @@ static struct sysrq_key_op sysrq_mountro_op = {
 };
 
 #ifdef CONFIG_LOCKDEP
-static void sysrq_handle_showlocks(int key, struct tty_struct *tty)
+static void sysrq_handle_showlocks(int key)
 {
 	debug_show_all_locks();
 }
@@ -226,7 +226,7 @@ static void sysrq_showregs_othercpus(struct work_struct *dummy)
 
 static DECLARE_WORK(sysrq_showallcpus, sysrq_showregs_othercpus);
 
-static void sysrq_handle_showallcpus(int key, struct tty_struct *tty)
+static void sysrq_handle_showallcpus(int key)
 {
 	/*
 	 * Fall back to the workqueue based printing if the
@@ -252,7 +252,7 @@ static struct sysrq_key_op sysrq_showallcpus_op = {
 };
 #endif
 
-static void sysrq_handle_showregs(int key, struct tty_struct *tty)
+static void sysrq_handle_showregs(int key)
 {
 	struct pt_regs *regs = get_irq_regs();
 	if (regs)
@@ -266,7 +266,7 @@ static struct sysrq_key_op sysrq_showregs_op = {
 	.enable_mask	= SYSRQ_ENABLE_DUMP,
 };
 
-static void sysrq_handle_showstate(int key, struct tty_struct *tty)
+static void sysrq_handle_showstate(int key)
 {
 	show_state();
 }
@@ -277,7 +277,7 @@ static struct sysrq_key_op sysrq_showstate_op = {
 	.enable_mask	= SYSRQ_ENABLE_DUMP,
 };
 
-static void sysrq_handle_showstate_blocked(int key, struct tty_struct *tty)
+static void sysrq_handle_showstate_blocked(int key)
 {
 	show_state_filter(TASK_UNINTERRUPTIBLE);
 }
@@ -291,7 +291,7 @@ static struct sysrq_key_op sysrq_showstate_blocked_op = {
 #ifdef CONFIG_TRACING
 #include <linux/ftrace.h>
 
-static void sysrq_ftrace_dump(int key, struct tty_struct *tty)
+static void sysrq_ftrace_dump(int key)
 {
 	ftrace_dump(DUMP_ALL);
 }
@@ -305,7 +305,7 @@ static struct sysrq_key_op sysrq_ftrace_dump_op = {
 #define sysrq_ftrace_dump_op (*(struct sysrq_key_op *)NULL)
 #endif
 
-static void sysrq_handle_showmem(int key, struct tty_struct *tty)
+static void sysrq_handle_showmem(int key)
 {
 	show_mem();
 }
@@ -330,7 +330,7 @@ static void send_sig_all(int sig)
 	}
 }
 
-static void sysrq_handle_term(int key, struct tty_struct *tty)
+static void sysrq_handle_term(int key)
 {
 	send_sig_all(SIGTERM);
 	console_loglevel = 8;
@@ -349,7 +349,7 @@ static void moom_callback(struct work_struct *ignored)
 
 static DECLARE_WORK(moom_work, moom_callback);
 
-static void sysrq_handle_moom(int key, struct tty_struct *tty)
+static void sysrq_handle_moom(int key)
 {
 	schedule_work(&moom_work);
 }
@@ -361,7 +361,7 @@ static struct sysrq_key_op sysrq_moom_op = {
 };
 
 #ifdef CONFIG_BLOCK
-static void sysrq_handle_thaw(int key, struct tty_struct *tty)
+static void sysrq_handle_thaw(int key)
 {
 	emergency_thaw_all();
 }
@@ -373,7 +373,7 @@ static struct sysrq_key_op sysrq_thaw_op = {
 };
 #endif
 
-static void sysrq_handle_kill(int key, struct tty_struct *tty)
+static void sysrq_handle_kill(int key)
 {
 	send_sig_all(SIGKILL);
 	console_loglevel = 8;
@@ -385,7 +385,7 @@ static struct sysrq_key_op sysrq_kill_op = {
 	.enable_mask	= SYSRQ_ENABLE_SIGNAL,
 };
 
-static void sysrq_handle_unrt(int key, struct tty_struct *tty)
+static void sysrq_handle_unrt(int key)
 {
 	normalize_rt_tasks();
 }
@@ -520,7 +520,7 @@ void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
 		if (!check_mask || sysrq_on_mask(op_p->enable_mask)) {
 			printk("%s\n", op_p->action_msg);
 			console_loglevel = orig_log_level;
-			op_p->handler(key, tty);
+			op_p->handler(key);
 		} else {
 			printk("This sysrq operation is disabled.\n");
 		}
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 7196620..9598ae7 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -295,7 +295,7 @@ static void drm_fb_helper_restore_work_fn(struct work_struct *ignored)
 }
 static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn);
 
-static void drm_fb_helper_sysrq(int dummy1, struct tty_struct *dummy3)
+static void drm_fb_helper_sysrq(int dummy1)
 {
 	schedule_work(&drm_fb_helper_restore_work);
 }
diff --git a/drivers/net/ibm_newemac/debug.c b/drivers/net/ibm_newemac/debug.c
index 3995faf..8c6c1e2 100644
--- a/drivers/net/ibm_newemac/debug.c
+++ b/drivers/net/ibm_newemac/debug.c
@@ -238,7 +238,7 @@ void emac_dbg_dump_all(void)
 }
 
 #if defined(CONFIG_MAGIC_SYSRQ)
-static void emac_sysrq_handler(int key, struct tty_struct *tty)
+static void emac_sysrq_handler(int key)
 {
 	emac_dbg_dump_all();
 }
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 609e8ca..4ee6503 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -31,7 +31,7 @@ struct tty_struct;
 #define SYSRQ_ENABLE_RTNICE	0x0100
 
 struct sysrq_key_op {
-	void (*handler)(int, struct tty_struct *);
+	void (*handler)(int);
 	char *help_msg;
 	char *action_msg;
 	int enable_mask;
@@ -58,6 +58,10 @@ static inline void handle_sysrq(int key, struct tty_struct *tty)
 {
 }
 
+static inline void __handle_sysrq(int key, struct tty_struct *tty, int check_mask);
+{
+}
+
 static inline int register_sysrq_key(int key, struct sysrq_key_op *op)
 {
 	return -EINVAL;
diff --git a/kernel/power/poweroff.c b/kernel/power/poweroff.c
index e8b3370..d523593 100644
--- a/kernel/power/poweroff.c
+++ b/kernel/power/poweroff.c
@@ -24,7 +24,7 @@ static void do_poweroff(struct work_struct *dummy)
 
 static DECLARE_WORK(poweroff_work, do_poweroff);
 
-static void handle_poweroff(int key, struct tty_struct *tty)
+static void handle_poweroff(int key)
 {
 	/* run sysrq poweroff on boot cpu */
 	schedule_work_on(cpumask_first(cpu_online_mask), &poweroff_work);
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