arch_init: Remove unnecessary default_config_files table

The existing default_config_files table in arch_init.c has a
single entry, making it completely unnecessary. The whole code
can be replaced by a single qemu_read_config_file() call in vl.c.
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170117180051.11958-1-ehabkost@redhat.com>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

arch_init.c

@@ -83,33 +83,6 @@ int graphic_depth = 32;
 
 const uint32_t arch_type = QEMU_ARCH;
 
-static struct defconfig_file {
-    const char *filename;
-    /* Indicates it is an user config file (disabled by -no-user-config) */
-    bool userconfig;
-} default_config_files[] = {
-    { CONFIG_QEMU_CONFDIR "/qemu.conf",                   true },
-    { NULL }, /* end of list */
-};
-
-int qemu_read_default_config_files(bool userconfig)
-{
-    int ret;
-    struct defconfig_file *f;
-
-    for (f = default_config_files; f->filename; f++) {
-        if (!userconfig && f->userconfig) {
-            continue;
-        }
-        ret = qemu_read_config_file(f->filename);
-        if (ret < 0 && ret != -ENOENT) {
-            return ret;
-        }
-    }
-
-    return 0;
-}
-
 struct soundhw {
     const char *name;
     const char *descr;

include/qemu/config-file.h

@@ -23,8 +23,4 @@ int qemu_read_config_file(const char *filename);
 void qemu_config_parse_qdict(QDict *options, QemuOptsList **lists,
                              Error **errp);
 
-/* Read default QEMU config files
- */
-int qemu_read_default_config_files(bool userconfig);
-
 #endif /* QEMU_CONFIG_FILE_H */

vl.c

@@ -2950,6 +2950,18 @@ static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
     return 0;
 }
 
+static int qemu_read_default_config_file(void)
+{
+    int ret;
+
+    ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
+    if (ret < 0 && ret != -ENOENT) {
+        return ret;
+    }
+
+    return 0;
+}
+
 int main(int argc, char **argv, char **envp)
 {
     int i;
@@ -3077,10 +3089,8 @@ int main(int argc, char **argv, char **envp)
         }
     }
 
-    if (defconfig) {
-        int ret;
-        ret = qemu_read_default_config_files(userconfig);
-        if (ret < 0) {
+    if (defconfig && userconfig) {
+        if (qemu_read_default_config_file() < 0) {
             exit(1);
         }
     }