cli: type mismatch global_quotad_rpc in cli-quotad-client.c

...
[  236s] (.text+0x0): multiple definition of `cli_default_conn_timeout'; cli.o (symbol from plugin):(.text+0x0): first defined here
[  236s] cli-quotad-client.c:13:24: warning: type of 'global_quotad_rpc' does not match original declaration [-Wlto-type-mismatch]
[  236s]    13 | extern struct rpc_clnt global_quotad_rpc;
[  236s]       |                        ^
[  236s] cli.c:80:18: note: 'global_quotad_rpc' was previously declared here
[  236s]    80 | struct rpc_clnt *global_quotad_rpc;
[  236s]       |                  ^
[  236s] cli.c:80:18: note: code may be misoptimized unless '-fno-strict-aliasing' is used
[  239s] collect2: error: ld returned 1 exit status
...

move several global extern decls to cli.h.

Found on SUSE Tumbleweed w/ gcc-10 and LTO.  This bug goes back
at least as far as release-6. Curiously this only popped up as an
error when building 6.9, not 7.4 or 8.0. And not when building
8.0 on Fedora rawhide/33.

Change-Id: I765642cea77b524a36368a7ff1a2976ef049dd0f
Fixes: #1356
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>

cli/src/cli-cmd-global.c

@@ -27,8 +27,6 @@
 #include <glusterfs/syscall.h>
 #include <glusterfs/common-utils.h>
 
-extern rpc_clnt_prog_t *cli_rpc_prog;
-
 int
 cli_cmd_global_help_cbk(struct cli_state *state, struct cli_cmd_word *in_word,
                         const char **words, int wordcount);

cli/src/cli-cmd-misc.c

@@ -18,10 +18,6 @@
 #include "cli-mem-types.h"
 #include "protocol-common.h"
 
-extern struct rpc_clnt *global_rpc;
-
-extern rpc_clnt_prog_t *cli_rpc_prog;
-
 extern struct cli_cmd volume_cmds[];
 extern struct cli_cmd bitrot_cmds[];
 extern struct cli_cmd quota_cmds[];

cli/src/cli-cmd-peer.c

@@ -20,10 +20,6 @@
 #include "protocol-common.h"
 #include <glusterfs/events.h>
 
-extern struct rpc_clnt *global_rpc;
-
-extern rpc_clnt_prog_t *cli_rpc_prog;
-
 int
 cli_cmd_peer_help_cbk(struct cli_state *state, struct cli_cmd_word *in_word,
                       const char **words, int wordcount);

cli/src/cli-cmd-snapshot.c

@@ -17,8 +17,6 @@
 #include "cli-cmd.h"
 #include "cli-mem-types.h"
 
-extern rpc_clnt_prog_t *cli_rpc_prog;
-
 int
 cli_cmd_snapshot_help_cbk(struct cli_state *state, struct cli_cmd_word *in_word,
                           const char **words, int wordcount);

cli/src/cli-cmd-system.c

@@ -18,10 +18,6 @@
 #include "cli-mem-types.h"
 #include "protocol-common.h"
 
-extern struct rpc_clnt *global_rpc;
-
-extern rpc_clnt_prog_t *cli_rpc_prog;
-
 int
 cli_cmd_system_help_cbk(struct cli_state *state, struct cli_cmd_word *in_word,
                         const char **words, int wordcount);

cli/src/cli-cmd-volume.c

@@ -28,10 +28,6 @@
 #include <glusterfs/common-utils.h>
 #include <glusterfs/events.h>
 
-extern struct rpc_clnt *global_rpc;
-extern struct rpc_clnt *global_quotad_rpc;
-
-extern rpc_clnt_prog_t *cli_rpc_prog;
 extern rpc_clnt_prog_t cli_quotad_clnt;
 
 static int

cli/src/cli-quotad-client.c

@@ -10,9 +10,6 @@
 
 #include "cli-quotad-client.h"
 
-extern struct rpc_clnt global_quotad_rpc;
-extern struct rpc_clnt_program cli_quotad_clnt;
-
 int
 cli_quotad_submit_request(void *req, call_frame_t *frame, rpc_clnt_prog_t *prog,
                           int procnum, struct iobref *iobref, xlator_t *this,
@@ -60,7 +57,7 @@ cli_quotad_submit_request(void *req, call_frame_t *frame, rpc_clnt_prog_t *prog,
     }
 
     /* Send the msg */
-    ret = rpc_clnt_submit(&global_quotad_rpc, prog, procnum, cbkfn, &iov, count,
+    ret = rpc_clnt_submit(global_quotad_rpc, prog, procnum, cbkfn, &iov, count,
                           NULL, 0, iobref, frame, NULL, 0, NULL, 0, NULL);
     ret = 0;
 

cli/src/cli-rpc-ops.c

@@ -47,9 +47,7 @@
 
 enum gf_task_types { GF_TASK_TYPE_REBALANCE, GF_TASK_TYPE_REMOVE_BRICK };
 
-extern struct rpc_clnt *global_quotad_rpc;
 rpc_clnt_prog_t cli_quotad_clnt;
-extern rpc_clnt_prog_t *cli_rpc_prog;
 
 static int32_t
 gf_cli_remove_brick(call_frame_t *frame, xlator_t *this, void *data);

cli/src/cli.c

@@ -71,6 +71,7 @@ const char *argp_program_version =
 const char *argp_program_bug_address = "<" PACKAGE_BUGREPORT ">";
 
 struct rpc_clnt *global_quotad_rpc;
+
 struct rpc_clnt *global_rpc;
 
 rpc_clnt_prog_t *cli_rpc_prog;

cli/src/cli.h

@@ -189,6 +189,12 @@ typedef ssize_t (*cli_serialize_t)(struct iovec outmsg, void *args);
 
 extern struct cli_state *global_state; /* use only in readline callback */
 
+extern struct rpc_clnt *global_quotad_rpc;
+
+extern struct rpc_clnt *global_rpc;
+
+extern rpc_clnt_prog_t *cli_rpc_prog;
+
 typedef const char *(*cli_selector_t)(void *wcon);
 
 char *