linux-kernel - [PATCH][V2] cpufreq: longhaul: Make array speeds static const

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Message-Id: <20221103150431.87598-1-colin.i.king@gmail.com>
Date:   Thu,  3 Nov 2022 15:04:31 +0000
From:   Colin Ian King <colin.i.king@...il.com>
To:     "Rafael J . Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-pm@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][V2] cpufreq: longhaul: Make array speeds static const

Don't populate the read-only array speeds on the stack but instead
make it static. Also makes the object code a little smaller. Replace
hard-coded loop array bounds with ARRAY_SIZE.

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
V2: replace 4 with ARRAY_SIZE in for-loop as suggested by Joe Perches.
---
 drivers/cpufreq/longhaul.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 3e000e1a75c6..4c57c6725c13 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -407,10 +407,10 @@ static int guess_fsb(int mult)
 {
 	int speed = cpu_khz / 1000;
 	int i;
-	int speeds[] = { 666, 1000, 1333, 2000 };
+	static const int speeds[] = { 666, 1000, 1333, 2000 };
 	int f_max, f_min;
 
-	for (i = 0; i < 4; i++) {
+	for (i = 0; i < ARRAY_SIZE(speeds); i++) {
 		f_max = ((speeds[i] * mult) + 50) / 100;
 		f_max += (ROUNDING / 2);
 		f_min = f_max - ROUNDING;
-- 
2.38.1