linux-kernel - [PATCH] tools: Change the division operator to a right shift operator

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Message-Id: <20220719015818.3260-1-lvqian@nfschina.com>
Date:   Tue, 19 Jul 2022 09:58:18 +0800
From:   Lv qian <lvqian@...china.com>
To:     shuah@...nel.org
Cc:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...china.com, Lv qian <lvqian@...china.com>
Subject: [PATCH] tools: Change the division operator to a right shift operator

Change the division operator to a right shift operator,Reduced assembly
code.

Signed-off-by: Lv qian <lvqian@...china.com>
---
 tools/testing/selftests/size/get_size.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/size/get_size.c b/tools/testing/selftests/size/get_size.c
index 2980b1a63366..b1e34408f8c6 100644
--- a/tools/testing/selftests/size/get_size.c
+++ b/tools/testing/selftests/size/get_size.c
@@ -73,7 +73,7 @@ static int print_k_value(const char *s, unsigned long num, unsigned long units)
 	print(s);
 
 	temp = num;
-	temp = (temp * units)/1024;
+	temp = (temp * units)>>10;
 	num = temp;
 	ccode = print_num(num);
 	print("\n");
-- 
2.18.2