livepatch: Fix compile warnning

hulk inclusion
category: bugfix
bugzilla: 181325 https://gitee.com/openeuler/kernel/issues/I4DDEL

--------------------------------

An error is reported during version building: error: ISO C90 forbids mixed
declarations and code.

Fix it by moving the variable definition forward.
Signed-off-by: NYe Weihua <yeweihua4@huawei.com>
Reviewed-by: NYang Jihong <yangjihong1@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm/kernel/livepatch.c

@@ -298,15 +298,14 @@ int klp_check_calltrace(struct klp_patch *patch, int enable)
 	int ret = 0;
 	struct klp_func_list *nojump_funcs = NULL;
 	struct klp_func_list *other_funcs = NULL;
+	struct walk_stackframe_args args = {
+		.ret = 0
+	};
 
 	ret = klp_check_activeness_func(patch, enable, &nojump_funcs, &other_funcs);
 	if (ret)
 		goto out;
-
-	struct walk_stackframe_args args = {
-		.other_funcs = other_funcs,
-		.ret = 0
-	};
+	args.other_funcs = other_funcs;
 
 	for_each_process_thread(g, t) {
 		if (t == current) {

arch/arm64/kernel/livepatch.c

@@ -291,17 +291,16 @@ int klp_check_calltrace(struct klp_patch *patch, int enable)
 	int ret = 0;
 	struct klp_func_list *nojump_funcs = NULL;
 	struct klp_func_list *other_funcs = NULL;
-
-	ret = klp_check_activeness_func(patch, enable, &nojump_funcs, &other_funcs);
-	if (ret)
-		goto out;
-
 	struct walk_stackframe_args args = {
 		.enable = enable,
-		.other_funcs = other_funcs,
 		.ret = 0
 	};
 
+	ret = klp_check_activeness_func(patch, enable, &nojump_funcs, &other_funcs);
+	if (ret)
+		goto out;
+	args.other_funcs = other_funcs;
+
 	for_each_process_thread(g, t) {
 		/*
 		 * Handle the current carefully on each CPUs, we shouldn't

arch/powerpc/kernel/livepatch_32.c

@@ -316,15 +316,14 @@ int klp_check_calltrace(struct klp_patch *patch, int enable)
 	int ret = 0;
 	struct klp_func_list *nojump_funcs = NULL;
 	struct klp_func_list *other_funcs = NULL;
+	struct walk_stackframe_args args = {
+		.ret = 0
+	};
 
 	ret = klp_check_activeness_func(patch, enable, &nojump_funcs, &other_funcs);
 	if (ret)
 		goto out;
-
-	struct walk_stackframe_args args = {
-		.other_funcs = other_funcs,
-		.ret = 0
-	};
+	args.other_funcs = other_funcs;
 
 	for_each_process_thread(g, t) {
 		if (t == current) {