staging: lustre: clean up some proc file declarations

This removes the DECLARE_PROC_HANDLER macro, and makes proc_call_handler
a static function (horrible name to be in a module).  This makes the
linux-prim.h file empty now, so it can be removed soon.

Cc: Andreas Dilger <andreas.dilger@intel.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/include/linux/libcfs/linux/linux-prim.h

@@ -61,16 +61,4 @@
 
 #include "linux-time.h"
 
-/*
- * Sysctl register
- */
-#define DECLARE_PROC_HANDLER(name)					\
-static int name(struct ctl_table *table, int write,			\
-		void __user *buffer, size_t *lenp, loff_t *ppos)	\
-{									\
-	return proc_call_handler(table->data, write,			\
-				 ppos, buffer, lenp,			\
-				 __##name);				\
-}
-
 #endif

drivers/staging/lustre/include/linux/libcfs/linux/portals_compat25.h

@@ -84,10 +84,4 @@
 #define ll_proc_dolongvec(table, write, filp, buffer, lenp, ppos)	\
 	proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
 
-/* helper for sysctl handlers */
-int proc_call_handler(void *data, int write,
-		      loff_t *ppos, void *buffer, size_t *lenp,
-		      int (*handler)(void *data, int write,
-				     loff_t pos, void *buffer, int len));
-
 #endif /* _PORTALS_COMPAT_H */

drivers/staging/lustre/lnet/lnet/router_proc.c

@@ -90,6 +90,24 @@ enum {
 
 #define LNET_PROC_VERSION(v)	((unsigned int)((v) & LNET_PROC_VER_MASK))
 
+static int proc_call_handler(void *data, int write, loff_t *ppos, void *buffer,
+			     size_t *lenp, int (*handler)(void *data, int write,
+			     loff_t pos, void *buffer, int len))
+{
+	int rc = handler(data, write, *ppos, buffer, *lenp);
+
+	if (rc < 0)
+		return rc;
+
+	if (write) {
+		*ppos += *lenp;
+	} else {
+		*lenp = rc;
+		*ppos += rc;
+	}
+	return 0;
+}
+
 static int __proc_lnet_stats(void *data, int write,
 			     loff_t pos, void *buffer, int nob)
 {
@@ -139,7 +157,12 @@ static int __proc_lnet_stats(void *data, int write,
 	return rc;
 }
 
-DECLARE_PROC_HANDLER(proc_lnet_stats);
+static int proc_lnet_stats(struct ctl_table *table, int write,
+			   void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_lnet_stats);
+}
 
 int proc_lnet_routes(struct ctl_table *table, int write, void __user *buffer,
 		     size_t *lenp, loff_t *ppos)
@@ -627,7 +650,12 @@ static int __proc_lnet_buffers(void *data, int write,
 	return rc;
 }
 
-DECLARE_PROC_HANDLER(proc_lnet_buffers);
+static int proc_lnet_buffers(struct ctl_table *table, int write,
+			     void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_lnet_buffers);
+}
 
 int proc_lnet_nis(struct ctl_table *table, int write, void __user *buffer,
 		  size_t *lenp, loff_t *ppos)
@@ -847,7 +875,14 @@ static int __proc_lnet_portal_rotor(void *data, int write,
 	LIBCFS_FREE(buf, buf_len);
 	return rc;
 }
-DECLARE_PROC_HANDLER(proc_lnet_portal_rotor);
+
+static int proc_lnet_portal_rotor(struct ctl_table *table, int write,
+				  void __user *buffer, size_t *lenp,
+				  loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_lnet_portal_rotor);
+}
 
 static struct ctl_table lnet_table[] = {
 	/*

drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c

@@ -98,10 +98,8 @@ enum {
 	PSDEV_LNET_FAIL_VAL,      /* userdata for fail loc */
 };
 
-int
-proc_call_handler(void *data, int write,
-		  loff_t *ppos, void *buffer, size_t *lenp,
-		  int (*handler)(void *data, int write,
+static int proc_call_handler(void *data, int write, loff_t *ppos, void *buffer,
+			     size_t *lenp, int (*handler)(void *data, int write,
 			     loff_t pos, void *buffer, int len))
 {
 	int rc = handler(data, write, *ppos, buffer, *lenp);
@@ -117,7 +115,6 @@ proc_call_handler(void *data, int write,
 	}
 	return 0;
 }
-EXPORT_SYMBOL(proc_call_handler);
 
 static int __proc_dobitmasks(void *data, int write,
 			     loff_t pos, void *buffer, int nob)
@@ -160,7 +157,12 @@ static int __proc_dobitmasks(void *data, int write,
 	return rc;
 }
 
-DECLARE_PROC_HANDLER(proc_dobitmasks)
+static int proc_dobitmasks(struct ctl_table *table, int write,
+			   void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_dobitmasks);
+}
 
 static int min_watchdog_ratelimit = 0;	  /* disable ratelimiting */
 static int max_watchdog_ratelimit = (24*60*60); /* limit to once per day */
@@ -174,7 +176,12 @@ static int __proc_dump_kernel(void *data, int write,
 	return cfs_trace_dump_debug_buffer_usrstr(buffer, nob);
 }
 
-DECLARE_PROC_HANDLER(proc_dump_kernel)
+static int proc_dump_kernel(struct ctl_table *table, int write,
+			    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_dump_kernel);
+}
 
 static int __proc_daemon_file(void *data, int write,
 			      loff_t pos, void *buffer, int nob)
@@ -192,7 +199,12 @@ static int __proc_daemon_file(void *data, int write,
 	return cfs_trace_daemon_command_usrstr(buffer, nob);
 }
 
-DECLARE_PROC_HANDLER(proc_daemon_file)
+static int proc_daemon_file(struct ctl_table *table, int write,
+			    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_daemon_file);
+}
 
 static int __proc_debug_mb(void *data, int write,
 			   loff_t pos, void *buffer, int nob)
@@ -212,7 +224,12 @@ static int __proc_debug_mb(void *data, int write,
 	return cfs_trace_set_debug_mb_usrstr(buffer, nob);
 }
 
-DECLARE_PROC_HANDLER(proc_debug_mb)
+static int proc_debug_mb(struct ctl_table *table, int write,
+			 void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_debug_mb);
+}
 
 int proc_console_max_delay_cs(struct ctl_table *table, int write,
 			      void __user *buffer, size_t *lenp, loff_t *ppos)
@@ -366,7 +383,13 @@ static int __proc_cpt_table(void *data, int write,
 		LIBCFS_FREE(buf, len);
 	return rc;
 }
-DECLARE_PROC_HANDLER(proc_cpt_table)
+
+static int proc_cpt_table(struct ctl_table *table, int write,
+			   void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_cpt_table);
+}
 
 static struct ctl_table lnet_table[] = {
 	/*