From: Jeff Garzik <jeff@garzik.org>
Date: Wed, 4 Oct 2006 11:57:18 +0000 (-0400)
Subject: [JFFS2] kill warning RE debug-only variables
X-Git-Tag: firefly_0821_release~31522^2~65
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a6b1d82d079a99d09761ee5fbc66c49f33b42324;p=firefly-linux-kernel-4.4.55.git

[JFFS2] kill warning RE debug-only variables

gcc emits the following warning on a 'allmodconfig' build:

fs/jffs2/xattr.c: In function ‘unrefer_xattr_datum’:
fs/jffs2/xattr.c:402: warning: unused variable ‘version’
fs/jffs2/xattr.c:402: warning: unused variable ‘xid’

Given that these variables are only used in the debug printk, and they
merely remove a deref, we can easily kill the warning by adding the
derefs to the debug printk.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
---

diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c
index 4da09ce1d1f5..4bb3f1897330 100644
--- a/fs/jffs2/xattr.c
+++ b/fs/jffs2/xattr.c
@@ -399,8 +399,6 @@ static void unrefer_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datu
 {
 	/* must be called under down_write(xattr_sem) */
 	if (atomic_dec_and_lock(&xd->refcnt, &c->erase_completion_lock)) {
-		uint32_t xid = xd->xid, version = xd->version;
-
 		unload_xattr_datum(c, xd);
 		xd->flags |= JFFS2_XFLAGS_DEAD;
 		if (xd->node == (void *)xd) {
@@ -411,7 +409,8 @@ static void unrefer_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datu
 		}
 		spin_unlock(&c->erase_completion_lock);
 
-		dbg_xattr("xdatum(xid=%u, version=%u) was removed.\n", xid, version);
+		dbg_xattr("xdatum(xid=%u, version=%u) was removed.\n",
+			  xd->xid, xd->version);
 	}
 }