[tip: x86/urgent] x86/unwind/orc: Convert global variables to static

[tip-bot2 for Josh Poimboeuf]

The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     153eb2223c794251b28400f3f74862e090d23f16
Gitweb:        https://git.kernel.org/tip/153eb2223c794251b28400f3f74862e090d23f16
Author:        Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
AuthorDate:    Sat, 25 Apr 2020 05:03:05 -05:00
Committer:     Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Sat, 25 Apr 2020 12:22:28 +02:00

x86/unwind/orc: Convert global variables to static

These variables aren't used outside of unwind_orc.c, make them static.

Also annotate some of them with '__ro_after_init', as applicable.

Reviewed-by: Miroslav Benes <mbenes@xxxxxxx>
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Dave Jones <dsj@xxxxxx>
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Vince Weaver <vincent.weaver@xxxxxxxxx>
Link: https://lore.kernel.org/r/43ae310bf7822b9862e571f36ae3474cfde8f301.1587808742.git.jpoimboe@xxxxxxxxxx
---
 arch/x86/kernel/unwind_orc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index e9cc182..64889da 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -15,12 +15,12 @@ extern int __stop_orc_unwind_ip[];
 extern struct orc_entry __start_orc_unwind[];
 extern struct orc_entry __stop_orc_unwind[];
 
-static DEFINE_MUTEX(sort_mutex);
-int *cur_orc_ip_table = __start_orc_unwind_ip;
-struct orc_entry *cur_orc_table = __start_orc_unwind;
+static bool orc_init __ro_after_init;
+static unsigned int lookup_num_blocks __ro_after_init;
 
-unsigned int lookup_num_blocks;
-bool orc_init;
+static DEFINE_MUTEX(sort_mutex);
+static int *cur_orc_ip_table = __start_orc_unwind_ip;
+static struct orc_entry *cur_orc_table = __start_orc_unwind;
 
 static inline unsigned long orc_ip(const int *ip)
 {