Commit 78380898 authored Jun 07, 2023 by Chen Zhongjin

x86/unwind: Fix check_paravirt() calls orc_find() before declaration

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6DK3O


CVE: NA

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

check_paravirt() calls orc_find() before its implementation code.

If CONFIG_DYNAMIC_FTRACE is enabled, orc_find() will be declared
earlier and compiling will not fail. Otherwise it will fail for
"implicit declaration of function 'orc_find'".

Move declaration of orc_find() out of CONFIG_DYNAMIC_FTRACE macro to
fix this.

Fixes: cbb12ea4718a ("[Huawei] x86/unwind: Fix orc entry for paravirt {save,restore}_fl")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Reviewed-by: Xu Kuohai <xukuohai@huawei.com>

parent cd5fe777

arch/x86/kernel/unwind_orc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -77,9 +77,9 @@ static struct orc_entry *orc_module_find(unsigned long ip)
		}
		#endif

		#ifdef CONFIG_DYNAMIC_FTRACE
		static struct orc_entry *orc_find(unsigned long ip);

		#ifdef CONFIG_DYNAMIC_FTRACE
		/*
		* Ftrace dynamic trampolines do not have orc entries of their own.
		* But they are copies of the ftrace entries that are static and