[PATCH] x86/unwind_orc: use swap macro in orc_sort_swap

[Gustavo A. R. Silva]

Make use of the swap macro and remove unnecessary variable orc_tmp.
This makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
---
 arch/x86/kernel/unwind_orc.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index b95007e..82b8fd2 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -117,7 +117,6 @@ static struct orc_entry *orc_find(unsigned long ip)
 static void orc_sort_swap(void *_a, void *_b, int size)
 {
        struct orc_entry *orc_a, *orc_b;
-       struct orc_entry orc_tmp;
        int *a = _a, *b = _b, tmp;
        int delta = _b - _a;
 
@@ -129,9 +128,7 @@ static void orc_sort_swap(void *_a, void *_b, int size)
        /* Swap the corresponding .orc_unwind entries: */
        orc_a = cur_orc_table + (a - cur_orc_ip_table);
        orc_b = cur_orc_table + (b - cur_orc_ip_table);
-       orc_tmp = *orc_a;
-       *orc_a = *orc_b;
-       *orc_b = orc_tmp;
+       swap(*orc_a, *orc_b);
 }
 
 static int orc_sort_cmp(const void *_a, const void *_b)
-- 
2.7.4