[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 4da09ce..4bb3f18 100644 (file)
--- 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);
        }
 }