gdbstub: remove unused user_ctx field

This was always NULL so drop it.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230829161528.2707696-10-alex.bennee@linaro.org>

gdbstub/gdbstub.c

@@ -836,7 +836,7 @@ static inline int startswith(const char *string, const char *pattern)
   return !strncmp(string, pattern, strlen(pattern));
 }
 
-static int process_string_cmd(void *user_ctx, const char *data,
+static int process_string_cmd(const char *data,
                               const GdbCmdParseEntry *cmds, int num_cmds)
 {
     int i;
@@ -863,7 +863,7 @@ static int process_string_cmd(void *user_ctx, const char *data,
         }
 
         gdbserver_state.allow_stop_reply = cmd->allow_stop_reply;
-        cmd->handler(params, user_ctx);
+        cmd->handler(params, NULL);
         return 0;
     }
 
@@ -881,7 +881,7 @@ static void run_cmd_parser(const char *data, const GdbCmdParseEntry *cmd)
 
     /* In case there was an error during the command parsing we must
     * send a NULL packet to indicate the command is not supported */
-    if (process_string_cmd(NULL, data, cmd, 1)) {
+    if (process_string_cmd(data, cmd, 1)) {
         gdb_put_packet("");
     }
 }
@@ -1394,7 +1394,7 @@ static void handle_v_commands(GArray *params, void *user_ctx)
         return;
     }
 
-    if (process_string_cmd(NULL, get_param(params, 0)->data,
+    if (process_string_cmd(get_param(params, 0)->data,
                            gdb_v_commands_table,
                            ARRAY_SIZE(gdb_v_commands_table))) {
         gdb_put_packet("");
@@ -1738,13 +1738,13 @@ static void handle_gen_query(GArray *params, void *user_ctx)
         return;
     }
 
-    if (!process_string_cmd(NULL, get_param(params, 0)->data,
+    if (!process_string_cmd(get_param(params, 0)->data,
                             gdb_gen_query_set_common_table,
                             ARRAY_SIZE(gdb_gen_query_set_common_table))) {
         return;
     }
 
-    if (process_string_cmd(NULL, get_param(params, 0)->data,
+    if (process_string_cmd(get_param(params, 0)->data,
                            gdb_gen_query_table,
                            ARRAY_SIZE(gdb_gen_query_table))) {
         gdb_put_packet("");
@@ -1757,13 +1757,13 @@ static void handle_gen_set(GArray *params, void *user_ctx)
         return;
     }
 
-    if (!process_string_cmd(NULL, get_param(params, 0)->data,
+    if (!process_string_cmd(get_param(params, 0)->data,
                             gdb_gen_query_set_common_table,
                             ARRAY_SIZE(gdb_gen_query_set_common_table))) {
         return;
     }
 
-    if (process_string_cmd(NULL, get_param(params, 0)->data,
+    if (process_string_cmd(get_param(params, 0)->data,
                            gdb_gen_set_table,
                            ARRAY_SIZE(gdb_gen_set_table))) {
         gdb_put_packet("");