hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6DK3O CVE: NA
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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 --- arch/x86/kernel/unwind_orc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c index 055a9df84de46..9452ba625f670 100644 --- a/arch/x86/kernel/unwind_orc.c +++ b/arch/x86/kernel/unwind_orc.c @@ -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