[PATCH] sysctl: remove support for CTL_ANY

There are currently no users in the kernel for CTL_ANY and it only has effect
on the binary interface which is practically unused.

So this complicates sysctl lookups for no good reason so just remove it.

Signed-off-by: Eric W. Biederman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: ebiederm

include/linux/sysctl.h

@@ -53,7 +53,6 @@ struct __sysctl_args {
 
 /* For internal pattern-matching use only: */
 #ifdef __KERNEL__
-#define CTL_ANY		-1	/* Matches any name */
 #define CTL_NONE	0
 #define CTL_UNNUMBERED	CTL_NONE	/* sysctl without a binary number */
 #endif

kernel/sysctl.c

@@ -1170,7 +1170,7 @@ static int parse_table(int __user *name, int nlen,
 	for ( ; table->ctl_name || table->procname; table++) {
 		if (!table->ctl_name)
 			continue;
-		if (n == table->ctl_name || table->ctl_name == CTL_ANY) {
+		if (n == table->ctl_name) {
 			int error;
 			if (table->child) {
 				if (ctl_perm(table, 001))