linux-kernel - [PATCH] arc: use swap() to make code cleaner

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Date:   Tue,  9 Nov 2021 19:07:12 -0800
From:   Yihao Han <hanyihao@...o.com>
To:     Vineet Gupta <vgupta@...nel.org>, Yihao Han <hanyihao@...o.com>,
        Jinchao Wang <wjc@...rlc.com>,
        "dean.yang_cp" <yangdianqing@...ong.com>,
        linux-snps-arc@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     kernel@...o.com
Subject: [PATCH] arc: use swap() to make code cleaner

Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid
opencoding it.

Signed-off-by: Yihao Han <hanyihao@...o.com>
---
 arch/arc/kernel/unwind.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index 9e28058cdba8..200270a94558 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -245,14 +245,9 @@ static void swap_eh_frame_hdr_table_entries(void *p1, void *p2, int size)
 {
 	struct eh_frame_hdr_table_entry *e1 = p1;
 	struct eh_frame_hdr_table_entry *e2 = p2;
-	unsigned long v;
-
-	v = e1->start;
-	e1->start = e2->start;
-	e2->start = v;
-	v = e1->fde;
-	e1->fde = e2->fde;
-	e2->fde = v;
+
+	swap(e1->start, e2->start);
+	swap(e1->fde, e2->fde);
 }
 
 static void init_unwind_hdr(struct unwind_table *table,
-- 
2.17.1