xfs: fix gcc 4.6 set but not read and unused statement warnings

[hch: dropped a few hunks that need structural changes instead]

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 6fe5c02ba19a..af168faccc7a 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -683,8 +683,6 @@ xfs_alloc_ag_vextent_near(
         xfs_agblock_t   ltbno;          /* start bno of left side entry */
         xfs_agblock_t   ltbnoa;         /* aligned ... */
         xfs_extlen_t    ltdiff;         /* difference to left side entry */
-        /*REFERENCED*/
-        xfs_agblock_t   ltend;          /* end bno of left side entry */
         xfs_extlen_t    ltlen;          /* length of left side entry */
         xfs_extlen_t    ltlena;         /* aligned ... */
         xfs_agblock_t   ltnew;          /* useful start bno of left side */
@@ -809,8 +807,7 @@ xfs_alloc_ag_vextent_near(
                 if ((error = xfs_alloc_get_rec(cnt_cur, &ltbno, &ltlen, &i)))
                         goto error0;
                 XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
-                ltend = ltbno + ltlen;
-                ASSERT(ltend <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
+                ASSERT(ltbno + ltlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
                 args->len = blen;
                 if (!xfs_alloc_fix_minleft(args)) {
                         xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
@@ -823,7 +820,7 @@ xfs_alloc_ag_vextent_near(
                  */
                 args->agbno = bnew;
                 ASSERT(bnew >= ltbno);
-                ASSERT(bnew + blen <= ltend);
+                ASSERT(bnew + blen <= ltbno + ltlen);
                 /*
                  * Set up a cursor for the by-bno tree.
                  */
@@ -1152,7 +1149,6 @@ xfs_alloc_ag_vextent_near(
         /*
          * Fix up the length and compute the useful address.
          */
-        ltend = ltbno + ltlen;
         args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
         xfs_alloc_fix_len(args);
         if (!xfs_alloc_fix_minleft(args)) {
@@ -1165,7 +1161,7 @@ xfs_alloc_ag_vextent_near(
         (void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment, ltbno,
                 ltlen, &ltnew);
         ASSERT(ltnew >= ltbno);
-        ASSERT(ltnew + rlen <= ltend);
+        ASSERT(ltnew + rlen <= ltbno + ltlen);
         ASSERT(ltnew + rlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
         args->agbno = ltnew;
         if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur_lt, ltbno, ltlen,