X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fsysrq.h;h=98a1d8cfb73d1902d7f55466bc9aa034e8436b2b;hb=13d622b33dfbd99205a7add5751ba47445e480a6;hp=4812ff60561cb44cf66625691059dee49fce6347;hpb=d9eaec9e295a84a80b663996d0489fcff3a1dca9;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 4812ff60561..98a1d8cfb73 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -11,6 +11,8 @@
  *	based upon discusions in irc://irc.openprojects.net/#kernelnewbies
  */
 
+#ifndef _LINUX_SYSRQ_H
+#define _LINUX_SYSRQ_H
 
 struct pt_regs;
 struct tty_struct;
@@ -27,7 +29,7 @@ struct tty_struct;
 #define SYSRQ_ENABLE_RTNICE	0x0100
 
 struct sysrq_key_op {
-	void (*handler)(int, struct pt_regs *, struct tty_struct *);
+	void (*handler)(int, struct tty_struct *);
 	char *help_msg;
 	char *action_msg;
 	int enable_mask;
@@ -35,25 +37,41 @@ struct sysrq_key_op {
 
 #ifdef CONFIG_MAGIC_SYSRQ
 
+extern int sysrq_on(void);
+
+/*
+ * Do not use this one directly:
+ */
+extern int __sysrq_enabled;
+
 /* Generic SysRq interface -- you may call it from any device driver, supplying
  * ASCII code of the key, pointer to registers and kbd/tty structs (if they
  * are available -- else NULL's).
  */
 
-void handle_sysrq(int, struct pt_regs *, struct tty_struct *);
-void __handle_sysrq(int, struct pt_regs *, struct tty_struct *, int check_mask);
-int register_sysrq_key(int, struct sysrq_key_op *);
-int unregister_sysrq_key(int, struct sysrq_key_op *);
+void handle_sysrq(int key, struct tty_struct *tty);
+void __handle_sysrq(int key, struct tty_struct *tty, int 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);
 
 #else
 
+static inline int sysrq_on(void)
+{
+	return 0;
+}
 static inline int __reterr(void)
 {
 	return -EINVAL;
 }
+static inline void handle_sysrq(int key, struct tty_struct *tty)
+{
+}
 
 #define register_sysrq_key(ig,nore) __reterr()
 #define unregister_sysrq_key(ig,nore) __reterr()
 
 #endif
+
+#endif /* _LINUX_SYSRQ_H */