Input: sysrq - drop tty argument form handle_sysrq()

Sysrq operations do not accept tty argument anymore so no need to pass
it to us.

[Stephen Rothwell <sfr@canb.auug.org.au>: fix build breakage in drm code
 caused by sysrq using bool but not including linux/types.h]

[Sachin Sant <sachinp@in.ibm.com>: fix build breakage in s390 keyboadr
 driver]

Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

14 files changed, 22 insertions, 27 deletions

diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index 2bef5261d96..1e8d71ad93e 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -149,7 +149,7 @@ static  void receive_chars(struct tty_struct *tty)
 						ch = ia64_ssc(0, 0, 0, 0,
 							      SSC_GETCHAR);
 					while (!ch);
-					handle_sysrq(ch, NULL);
+					handle_sysrq(ch);
 				}
 #endif
 				seen_esc = 0;
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index de317d0c329..ebc680717e5 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -690,7 +690,7 @@ static void with_console(struct mc_request *req, void (*proc)(void *),
 static void sysrq_proc(void *arg)
 {
 	char *op = arg;
-	handle_sysrq(*op, NULL);
+	handle_sysrq(*op);
 }
 
 void mconsole_sysrq(struct mc_request *req)
diff --git a/drivers/char/hangcheck-timer.c b/drivers/char/hangcheck-timer.c
index e0249722d25..f953c96efc8 100644
--- a/drivers/char/hangcheck-timer.c
+++ b/drivers/char/hangcheck-timer.c
@@ -159,7 +159,7 @@ static void hangcheck_fire(unsigned long data)
 		if (hangcheck_dump_tasks) {
 			printk(KERN_CRIT "Hangcheck: Task state:\n");
 #ifdef CONFIG_MAGIC_SYSRQ
-			handle_sysrq('t', NULL);
+			handle_sysrq('t');
 #endif  /* CONFIG_MAGIC_SYSRQ */
 		}
 		if (hangcheck_reboot) {
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index fa27d1676ee..3afd62e856e 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -651,7 +651,7 @@ int hvc_poll(struct hvc_struct *hp)
 					if (sysrq_pressed)
 						continue;
 				} else if (sysrq_pressed) {
-					handle_sysrq(buf[i], tty);
+					handle_sysrq(buf[i]);
 					sysrq_pressed = 0;
 					continue;
 				}
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index 1f4b6de65a2..a2bc885ce60 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -403,7 +403,7 @@ static void hvsi_insert_chars(struct hvsi_struct *hp, const char *buf, int len)
 			hp->sysrq = 1;
 			continue;
 		} else if (hp->sysrq) {
-			handle_sysrq(c, hp->tty);
+			handle_sysrq(c);
 			hp->sysrq = 0;
 			continue;
 		}
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index a892a3c249d..ef31bb81e84 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -18,7 +18,6 @@
 #include <linux/interrupt.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
-#include <linux/tty.h>
 #include <linux/mount.h>
 #include <linux/kdev_t.h>
 #include <linux/major.h>
@@ -493,7 +492,7 @@ static void __sysrq_put_key_op(int key, struct sysrq_key_op *op_p)
                 sysrq_key_table[i] = op_p;
 }
 
-void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
+void __handle_sysrq(int key, bool check_mask)
 {
 	struct sysrq_key_op *op_p;
 	int orig_log_level;
@@ -545,10 +544,10 @@ void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
 	spin_unlock_irqrestore(&sysrq_key_table_lock, flags);
 }
 
-void handle_sysrq(int key, struct tty_struct *tty)
+void handle_sysrq(int key)
 {
 	if (sysrq_on())
-		__handle_sysrq(key, tty, 1);
+		__handle_sysrq(key, true);
 }
 EXPORT_SYMBOL(handle_sysrq);
 
@@ -597,7 +596,7 @@ static bool sysrq_filter(struct input_handle *handle, unsigned int type,
 
 	default:
 		if (sysrq_down && value && value != 2)
-			__handle_sysrq(sysrq_xlate[code], NULL, 1);
+			__handle_sysrq(sysrq_xlate[code], true);
 		break;
 	}
 
@@ -765,7 +764,7 @@ static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
 
 		if (get_user(c, buf))
 			return -EFAULT;
-		__handle_sysrq(c, NULL, 0);
+		__handle_sysrq(c, false);
 	}
 
 	return count;
diff --git a/drivers/s390/char/ctrlchar.c b/drivers/s390/char/ctrlchar.c
index c6cbcb3f925..0e9a309b966 100644
--- a/drivers/s390/char/ctrlchar.c
+++ b/drivers/s390/char/ctrlchar.c
@@ -16,12 +16,11 @@
 
 #ifdef CONFIG_MAGIC_SYSRQ
 static int ctrlchar_sysrq_key;
-static struct tty_struct *sysrq_tty;
 
 static void
 ctrlchar_handle_sysrq(struct work_struct *work)
 {
-	handle_sysrq(ctrlchar_sysrq_key, sysrq_tty);
+	handle_sysrq(ctrlchar_sysrq_key);
 }
 
 static DECLARE_WORK(ctrlchar_work, ctrlchar_handle_sysrq);
@@ -54,7 +53,6 @@ ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty)
 	/* racy */
 	if (len == 3 && buf[1] == '-') {
 		ctrlchar_sysrq_key = buf[2];
-		sysrq_tty = tty;
 		schedule_work(&ctrlchar_work);
 		return CTRLCHAR_SYSRQ;
 	}
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index 18d9a497863..8cd58e412b5 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -305,7 +305,7 @@ kbd_keycode(struct kbd_data *kbd, unsigned int keycode)
 		if (kbd->sysrq) {
 			if (kbd->sysrq == K(KT_LATIN, '-')) {
 				kbd->sysrq = 0;
-				handle_sysrq(value, kbd->tty);
+				handle_sysrq(value);
 				return;
 			}
 			if (value == '-') {
diff --git a/drivers/serial/sn_console.c b/drivers/serial/sn_console.c
index 7e5e5efea4e..cff9a306660 100644
--- a/drivers/serial/sn_console.c
+++ b/drivers/serial/sn_console.c
@@ -492,7 +492,7 @@ sn_receive_chars(struct sn_cons_port *port, unsigned long flags)
                         sysrq_requested = 0;
                         if (ch && time_before(jiffies, sysrq_timeout)) {
                                 spin_unlock_irqrestore(&port->sc_port.lock, flags);
-                                handle_sysrq(ch, NULL);
+                                handle_sysrq(ch);
                                 spin_lock_irqsave(&port->sc_port.lock, flags);
                                 /* ignore actual sysrq command char */
                                 continue;
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index ca92f67747c..1e846cc3c7a 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -453,7 +453,7 @@ int usb_serial_handle_sysrq_char(struct tty_struct *tty,
 {
 	if (port->sysrq && port->port.console) {
 		if (ch && time_before(jiffies, port->sysrq)) {
-			handle_sysrq(ch, tty);
+			handle_sysrq(ch);
 			port->sysrq = 0;
 			return 1;
 		}
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 1799bd89031..ef9c7db5207 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -237,7 +237,7 @@ static void sysrq_handler(struct xenbus_watch *watch, const char **vec,
 		goto again;
 
 	if (sysrq_key != '\0')
-		handle_sysrq(sysrq_key, NULL);
+		handle_sysrq(sysrq_key);
 }
 
 static struct xenbus_watch sysrq_watch = {
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 3c2ad99fed3..64458a9a893 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -465,7 +465,7 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
 #ifdef SUPPORT_SYSRQ
 	if (port->sysrq) {
 		if (ch && time_before(jiffies, port->sysrq)) {
-			handle_sysrq(ch, port->state->port.tty);
+			handle_sysrq(ch);
 			port->sysrq = 0;
 			return 1;
 		}
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 4ee65031511..387fa7d05c9 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -15,9 +15,7 @@
 #define _LINUX_SYSRQ_H
 
 #include <linux/errno.h>
-
-struct pt_regs;
-struct tty_struct;
+#include <linux/types.h>
 
 /* Possible values of bitmask for enabling sysrq functions */
 /* 0x0001 is reserved for enable everything */
@@ -44,8 +42,8 @@ struct sysrq_key_op {
  * are available -- else NULL's).
  */
 
-void handle_sysrq(int key, struct tty_struct *tty);
-void __handle_sysrq(int key, struct tty_struct *tty, int check_mask);
+void handle_sysrq(int key);
+void __handle_sysrq(int key, bool check_mask);
 int register_sysrq_key(int key, struct sysrq_key_op *op);
 int unregister_sysrq_key(int key, struct sysrq_key_op *op);
 struct sysrq_key_op *__sysrq_get_key_op(int key);
@@ -54,11 +52,11 @@ int sysrq_toggle_support(int enable_mask);
 
 #else
 
-static inline void handle_sysrq(int key, struct tty_struct *tty)
+static inline void handle_sysrq(int key)
 {
 }
 
-static inline void __handle_sysrq(int key, struct tty_struct *tty, int check_mask);
+static inline void __handle_sysrq(int key, bool check_mask)
 {
 }
 
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 28b844118bb..caf057a3de0 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -1929,7 +1929,7 @@ static int kdb_sr(int argc, const char **argv)
 	if (argc != 1)
 		return KDB_ARGCOUNT;
 	kdb_trap_printk++;
-	__handle_sysrq(*argv[1], NULL, 0);
+	__handle_sysrq(*argv[1], false);
 	kdb_trap_printk--;
 
 	return 0;