[PATCH] cad_pid sysctl with PROC_FS=n

[Randy Dunlap]

From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>

mainline and -mm have this error if CONFIG_PROC_FS=n:

kernel/sysctl.c:148: warning: 'proc_do_cad_pid' used but never defined
kernel/built-in.o:(.data+0x1228): undefined reference to `proc_do_cad_pid'
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
---
 kernel/sysctl.c |    4 ++++
 1 files changed, 4 insertions(+)

--- linux-2619-rc2-mm1.orig/kernel/sysctl.c
+++ linux-2619-rc2-mm1/kernel/sysctl.c
@@ -144,8 +144,10 @@ static int parse_table(int __user *, int
 static int proc_do_uts_string(ctl_table *table, int write, struct file *filp,
 		  void __user *buffer, size_t *lenp, loff_t *ppos);
 
+#ifdef CONFIG_PROC_SYSCTL
 static int proc_do_cad_pid(ctl_table *table, int write, struct file *filp,
 		  void __user *buffer, size_t *lenp, loff_t *ppos);
+#endif
 
 static ctl_table root_table[];
 static struct ctl_table_header root_table_header =
@@ -558,6 +560,7 @@ static ctl_table kern_table[] = {
 		.proc_handler	= &proc_dointvec,
 	},
 #endif
+#ifdef CONFIG_PROC_SYSCTL
 	{
 		.ctl_name	= KERN_CADPID,
 		.procname	= "cad_pid",
@@ -566,6 +569,7 @@ static ctl_table kern_table[] = {
 		.mode		= 0600,
 		.proc_handler	= &proc_do_cad_pid,
 	},
+#endif
 	{
 		.ctl_name	= KERN_MAX_THREADS,
 		.procname	= "threads-max",


---
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