sysctl: remove "struct file *" argument of ->proc_handler

It's unused.

It isn't needed -- read or write flag is already passed and sysctl
shouldn't care about the rest.

It _was_ used in two places at arch/frv for some reason.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 71d1b9b..614da5b 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -3412,7 +3412,7 @@
 	return 0;
 }
 
-static int cdrom_sysctl_info(ctl_table *ctl, int write, struct file * filp,
+static int cdrom_sysctl_info(ctl_table *ctl, int write,
                            void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int pos;
@@ -3489,7 +3489,7 @@
 		goto done;
 doit:
 	mutex_unlock(&cdrom_mutex);
-	return proc_dostring(ctl, write, filp, buffer, lenp, ppos);
+	return proc_dostring(ctl, write, buffer, lenp, ppos);
 done:
 	printk(KERN_INFO "cdrom: info buffer too small\n");
 	goto doit;
@@ -3525,12 +3525,12 @@
 	mutex_unlock(&cdrom_mutex);
 }
 
-static int cdrom_sysctl_handler(ctl_table *ctl, int write, struct file * filp,
+static int cdrom_sysctl_handler(ctl_table *ctl, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 	
-	ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
+	ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
 
 	if (write) {