Eliminate many "var set but not used" warnings with newer gcc.

This fixes ~200 such warnings, but leaves three categories untouched.

(1) Rpcgen code.

(2) Macros which set variables in the outer (calling function) scope.

(3) Variables which are set via function calls which may have side effects.

Change-Id: I6554555f78ed26134251504b038da7e94adacbcd
BUG: 2550
Reviewed-on: http://review.gluster.com/371
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@gluster.com>

9 files changed, 0 insertions, 63 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-brick-ops.c b/xlators/mgmt/glusterd/src/glusterd-brick-ops.c
index 5fbdfc116..8b3a03b6f 100644
--- a/xlators/mgmt/glusterd/src/glusterd-brick-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-brick-ops.c
@@ -50,7 +50,6 @@ glusterd_handle_add_brick (rpcsvc_request_t *req)
         char                            err_str[2048] = {0,};
         gf1_cli_add_brick_rsp           rsp = {0,};
         glusterd_volinfo_t              *volinfo = NULL;
-        glusterd_conf_t                 *priv = NULL;
         xlator_t                        *this = NULL;
         char                            *free_ptr = NULL;
         glusterd_brickinfo_t            *tmpbrkinfo = NULL;
@@ -60,8 +59,6 @@ glusterd_handle_add_brick (rpcsvc_request_t *req)
         this = THIS;
         GF_ASSERT(this);
 
-        priv = this->private;
-
         GF_ASSERT (req);
 
         INIT_LIST_HEAD (&tmpvolinfo.bricks);
@@ -450,9 +447,6 @@ glusterd_op_perform_add_bricks (glusterd_volinfo_t  *volinfo, int32_t count,
         char                                    *free_ptr2  = NULL;
         char                                    *saveptr = NULL;
         int32_t                                 ret = -1;
-        glusterd_conf_t                         *priv = NULL;
-
-        priv = THIS->private;
 
         GF_ASSERT (volinfo);
 
@@ -523,14 +517,11 @@ glusterd_op_perform_remove_brick (glusterd_volinfo_t  *volinfo, char *brick)
 
         glusterd_brickinfo_t    *brickinfo = NULL;
         char                    *dup_brick = NULL;
-        glusterd_conf_t         *priv = NULL;
         int32_t                 ret = -1;
 
         GF_ASSERT (volinfo);
         GF_ASSERT (brick);
 
-        priv = THIS->private;
-
         dup_brick = gf_strdup (brick);
         if (!dup_brick)
                 goto out;
diff --git a/xlators/mgmt/glusterd/src/glusterd-geo-rep.c b/xlators/mgmt/glusterd/src/glusterd-geo-rep.c
index 9630546b4..86681146b 100644
--- a/xlators/mgmt/glusterd/src/glusterd-geo-rep.c
+++ b/xlators/mgmt/glusterd/src/glusterd-geo-rep.c
@@ -832,15 +832,12 @@ glusterd_op_verify_gsync_running (glusterd_volinfo_t *volinfo,
         int                     ret = -1;
         char                    msg[2048] = {0};
         uuid_t                  uuid = {0};
-        glusterd_conf_t         *priv = NULL;
 
         GF_ASSERT (THIS && THIS->private);
         GF_ASSERT (volinfo);
         GF_ASSERT (slave);
         GF_ASSERT (op_errstr);
 
-        priv = THIS->private;
-
         if (GLUSTERD_STATUS_STARTED != volinfo->status) {
                 snprintf (msg, sizeof (msg), "Volume %s needs to be started "
                           "before "GEOREP" start", volinfo->volname);
@@ -1004,13 +1001,10 @@ stop_gsync (char *master, char *slave, char **msg)
         char            pidfile[PATH_MAX] = {0,};
         char            buf [1024] = {0,};
         int             i       = 0;
-        glusterd_conf_t *priv = NULL;
 
         GF_ASSERT (THIS);
         GF_ASSERT (THIS->private);
 
-        priv = THIS->private;
-
         pfd = gsyncd_getpidfile (master, slave, pidfile);
         if (pfd == -2) {
                 gf_log ("", GF_LOG_ERROR, GEOREP" stop validation "
@@ -1310,13 +1304,10 @@ glusterd_set_marker_gsync (glusterd_volinfo_t *volinfo)
         int                      ret     = -1;
         int                      marker_set = _gf_false;
         char                    *gsync_status = NULL;
-        glusterd_conf_t         *priv = NULL;
 
         GF_ASSERT (THIS);
         GF_ASSERT (THIS->private);
 
-        priv = THIS->private;
-
         marker_set = glusterd_volinfo_get_boolean (volinfo, VKEY_MARKER_XTIME);
         if (marker_set == -1) {
                 gf_log ("", GF_LOG_ERROR, "failed to get the marker status");
diff --git a/xlators/mgmt/glusterd/src/glusterd-log-ops.c b/xlators/mgmt/glusterd/src/glusterd-log-ops.c
index 7274d1024..77275ca95 100644
--- a/xlators/mgmt/glusterd/src/glusterd-log-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-log-ops.c
@@ -89,7 +89,6 @@ glusterd_handle_log_locate (rpcsvc_request_t *req)
         int32_t                 ret     = -1;
         gf1_cli_log_locate_req  cli_req = {0,};
         gf1_cli_log_locate_rsp  rsp     = {0,};
-        glusterd_conf_t        *priv = NULL;
         glusterd_volinfo_t     *volinfo = NULL;
         glusterd_brickinfo_t   *brickinfo = NULL;
         char                    tmp_str[PATH_MAX] = {0,};
@@ -99,8 +98,6 @@ glusterd_handle_log_locate (rpcsvc_request_t *req)
 
         GF_ASSERT (req);
 
-        priv    = THIS->private;
-
         if (!xdr_to_generic (req->msg[0], &cli_req,
                              (xdrproc_t)xdr_gf1_cli_log_locate_req)) {
                 //failed to decode msg;
diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
index 7fe68ded0..44298d663 100644
--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
@@ -1922,14 +1922,12 @@ glusterd_op_brick_disconnect (void *data)
 static int
 glusterd_op_ac_rcvd_commit_op_acc (glusterd_op_sm_event_t *event, void *ctx)
 {
-        glusterd_conf_t        *priv              = NULL;
         dict_t                 *dict              = NULL;
         int                     ret               = 0;
         gf_boolean_t            commit_ack_inject = _gf_true;
         glusterd_op_t           op                = GD_OP_NONE;
 
         op = glusterd_op_get_op ();
-        priv = THIS->private;
         GF_ASSERT (event);
 
         if (opinfo.pending_count > 0)
@@ -2800,7 +2798,6 @@ glusterd_op_ac_rcvd_brick_op_acc (glusterd_op_sm_event_t *event, void *ctx)
         char                        *op_errstr = NULL;
         glusterd_op_t               op = GD_OP_NONE;
         dict_t                      *op_ctx = NULL;
-        gf_boolean_t                free_errstr = _gf_true;
         glusterd_req_ctx_t          *req_ctx = NULL;
 
         GF_ASSERT (event);
@@ -2818,7 +2815,6 @@ glusterd_op_ac_rcvd_brick_op_acc (glusterd_op_sm_event_t *event, void *ctx)
                 gf_log ("glusterd", GF_LOG_ERROR, "unknown response received "
                         "from %s:%s", brickinfo->hostname, brickinfo->path);
                 ret = -1;
-                free_errstr = _gf_true;
                 goto out;
         }
 
diff --git a/xlators/mgmt/glusterd/src/glusterd-rebalance.c b/xlators/mgmt/glusterd/src/glusterd-rebalance.c
index 68cbab54b..3cfa04bdd 100644
--- a/xlators/mgmt/glusterd/src/glusterd-rebalance.c
+++ b/xlators/mgmt/glusterd/src/glusterd-rebalance.c
@@ -569,11 +569,9 @@ glusterd_handle_defrag_volume_v2 (rpcsvc_request_t *req)
         glusterd_volinfo_t     *volinfo = NULL;
         gf2_cli_defrag_vol_rsp rsp = {0,};
         char                    msg[2048] = {0};
-        glusterd_conf_t        *priv = NULL;
 
         GF_ASSERT (req);
 
-        priv    = THIS->private;
         if (!xdr_to_generic (req->msg[0], &cli_req,
                              (xdrproc_t)xdr_gf1_cli_defrag_vol_req)) {
                 //failed to decode msg;
@@ -628,7 +626,6 @@ glusterd_handle_defrag_volume (rpcsvc_request_t *req)
 {
         int32_t                ret           = -1;
         gf1_cli_defrag_vol_req cli_req       = {0,};
-        glusterd_conf_t         *priv = NULL;
         char                   cmd_str[4096] = {0,};
         glusterd_volinfo_t      *volinfo = NULL;
         gf1_cli_defrag_vol_rsp rsp = {0,};
@@ -636,8 +633,6 @@ glusterd_handle_defrag_volume (rpcsvc_request_t *req)
 
         GF_ASSERT (req);
 
-        priv    = THIS->private;
-
         if (!xdr_to_generic (req->msg[0], &cli_req,
                              (xdrproc_t)xdr_gf1_cli_defrag_vol_req)) {
                 //failed to decode msg;
diff --git a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
index f8f0e8a84..f84dae174 100644
--- a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
+++ b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
@@ -1449,9 +1449,6 @@ glusterd_op_perform_replace_brick (glusterd_volinfo_t  *volinfo,
         glusterd_brickinfo_t                    *old_brickinfo = NULL;
         glusterd_brickinfo_t                    *new_brickinfo = NULL;
         int32_t                                 ret = -1;
-        glusterd_conf_t                         *priv = NULL;
-
-        priv = THIS->private;
 
         GF_ASSERT (volinfo);
 
diff --git a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
index 06dff923b..06cbdd793 100644
--- a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
@@ -431,14 +431,11 @@ glusterd3_1_probe_cbk (struct rpc_req *req, struct iovec *iov,
                         int count, void *myframe)
 {
         gd1_mgmt_probe_rsp    rsp   = {{0},};
-        glusterd_conf_t       *conf = NULL;
         int                   ret   = 0;
         glusterd_peerinfo_t           *peerinfo = NULL;
         glusterd_friend_sm_event_t    *event = NULL;
         glusterd_probe_ctx_t          *ctx = NULL;
 
-        conf  = THIS->private;
-
         if (-1 == req->rpc_status) {
                 goto out;
         }
@@ -512,7 +509,6 @@ glusterd3_1_friend_add_cbk (struct rpc_req * req, struct iovec *iov,
                             int count, void *myframe)
 {
         gd1_mgmt_friend_rsp           rsp   = {{0},};
-        glusterd_conf_t               *conf = NULL;
         int                           ret   = -1;
         glusterd_friend_sm_event_t        *event = NULL;
         glusterd_friend_sm_event_type_t    event_type = GD_FRIEND_EVENT_NONE;
@@ -522,8 +518,6 @@ glusterd3_1_friend_add_cbk (struct rpc_req * req, struct iovec *iov,
         glusterd_probe_ctx_t          *ctx = NULL;
         glusterd_friend_update_ctx_t  *ev_ctx = NULL;
 
-        conf  = THIS->private;
-
         if (-1 == req->rpc_status) {
                 rsp.op_ret   = -1;
                 rsp.op_errno = EINVAL;
@@ -699,7 +693,6 @@ int32_t
 glusterd3_1_friend_update_cbk (struct rpc_req *req, struct iovec *iov,
                               int count, void *myframe)
 {
-        gd1_mgmt_cluster_lock_rsp     rsp   = {{0},};
         int                           ret   = -1;
         int32_t                       op_ret = 0;
         char                          str[50] = {0,};
@@ -707,22 +700,9 @@ glusterd3_1_friend_update_cbk (struct rpc_req *req, struct iovec *iov,
         GF_ASSERT (req);
 
         if (-1 == req->rpc_status) {
-                rsp.op_ret   = -1;
-                rsp.op_errno = EINVAL;
                 goto out;
         }
 
-/*        ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_friend_update_rsp);
-        if (ret < 0) {
-                gf_log ("", GF_LOG_ERROR, "error");
-                rsp.op_ret   = -1;
-                rsp.op_errno = EINVAL;
-                goto out;
-        }
-        uuid_unparse (rsp.uuid, str);
-
-        op_ret = rsp.op_ret;
-*/
         gf_log ("glusterd", GF_LOG_INFO,
                 "Received %s from uuid: %s",
                 (op_ret)?"RJT":"ACC", str);
@@ -1475,7 +1455,6 @@ glusterd3_1_friend_add (call_frame_t *frame, xlator_t *this,
         glusterd_peerinfo_t        *peerinfo = NULL;
         glusterd_conf_t            *priv     = NULL;
         glusterd_friend_sm_event_t *event    = NULL;
-        glusterd_friend_req_ctx_t  *ctx      = NULL;
         dict_t                     *vols     = NULL;
 
 
@@ -1489,8 +1468,6 @@ glusterd3_1_friend_add (call_frame_t *frame, xlator_t *this,
 
         GF_ASSERT (priv);
 
-        ctx = event->ctx;
-
         peerinfo = event->peerinfo;
 
         ret = glusterd_build_volume_dict (&vols);
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
index d7b28ba1e..90d3f16bc 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
@@ -52,7 +52,6 @@ glusterd_handle_create_volume (rpcsvc_request_t *req)
         void                   *cli_rsp     = NULL;
         char                    err_str[2048] = {0,};
         gf1_cli_create_vol_rsp  rsp         = {0,};
-        glusterd_conf_t        *priv        = NULL;
         xlator_t               *this        = NULL;
         char                   *free_ptr    = NULL;
         char                   *trans_type  = NULL;
@@ -67,8 +66,6 @@ glusterd_handle_create_volume (rpcsvc_request_t *req)
         this = THIS;
         GF_ASSERT(this);
 
-        priv = this->private;
-
         ret = -1;
         if (!xdr_to_generic (req->msg[0], &cli_req,
                              (xdrproc_t)xdr_gf1_cli_create_vol_req)) {
diff --git a/xlators/mgmt/glusterd/src/glusterd.h b/xlators/mgmt/glusterd/src/glusterd.h
index 5a39c3089..699c03c4b 100644
--- a/xlators/mgmt/glusterd/src/glusterd.h
+++ b/xlators/mgmt/glusterd/src/glusterd.h
@@ -297,10 +297,6 @@ typedef ssize_t (*gd_serialize_t) (struct iovec outmsg, void *args);
         }
 
 #define GLUSTERD_STACK_DESTROY(frame) do {\
-		void *__local = NULL;     \
-                xlator_t *__xl = NULL;    \
-                __xl = frame->this;       \
-		__local = frame->local;   \
 		frame->local = NULL;	  \
 		STACK_DESTROY (frame->root);\
 	} while (0)