[ 3.8.y.z extended stable ] Patch "lparcfg: don't bother saving pointer to proc_dir_entry" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    lparcfg: don't bother saving pointer to proc_dir_entry

to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.9.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From c644524bbc140113f7e32606b16e8457a5771db9 Mon Sep 17 00:00:00 2001
From: Al Viro <viro at zeniv.linux.org.uk>
Date: Sun, 31 Mar 2013 23:21:50 -0400
Subject: lparcfg: don't bother saving pointer to proc_dir_entry

commit b177a29251081576df35cfbcb0f7d7c80deceb8b upstream.

Signed-off-by: Al Viro <viro at zeniv.linux.org.uk>
[ kamal: 3.8.y-stable prereq for:
  "f5f6cbb powerpc: Don't Oops when accessing /proc/powerpc/lparcfg without" ]
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 arch/powerpc/kernel/lparcfg.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index f5725bc..801a757 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -41,8 +41,6 @@

 /* #define LPARCFG_DEBUG */

-static struct proc_dir_entry *proc_ppc64_lparcfg;
-
 /*
  * Track sum of all purrs across all processors. This is used to further
  * calculate usage values by different applications
@@ -688,27 +686,22 @@ static const struct file_operations lparcfg_fops = {

 static int __init lparcfg_init(void)
 {
-	struct proc_dir_entry *ent;
 	umode_t mode = S_IRUSR | S_IRGRP | S_IROTH;

 	/* Allow writing if we have FW_FEATURE_SPLPAR */
 	if (firmware_has_feature(FW_FEATURE_SPLPAR))
 		mode |= S_IWUSR;

-	ent = proc_create("powerpc/lparcfg", mode, NULL, &lparcfg_fops);
-	if (!ent) {
+	if (!proc_create("powerpc/lparcfg", mode, NULL, &lparcfg_fops)) {
 		printk(KERN_ERR "Failed to create powerpc/lparcfg\n");
 		return -EIO;
 	}
-
-	proc_ppc64_lparcfg = ent;
 	return 0;
 }

 static void __exit lparcfg_cleanup(void)
 {
-	if (proc_ppc64_lparcfg)
-		remove_proc_entry("lparcfg", proc_ppc64_lparcfg->parent);
+	remove_proc_subtree("powerpc/lparcfg", NULL);
 }

 module_init(lparcfg_init);
--
1.8.1.2