linux-kernel - [PATCH] timers: Use the macro LVL_OFFS() to calculate the offset of each level

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Message-Id: <20210829065858.30397-1-dianlong_lee@163.com>
Date:   Sun, 29 Aug 2021 06:58:58 +0000
From:   Dianlong Li <dianlong_lee@....com>
To:     tglx@...utronix.de
Cc:     john.stultz@...aro.org, sboyd@...nel.org,
        linux-kernel@...r.kernel.org, Dianlong Li <dianlong_lee@....com>
Subject: [PATCH] timers: Use the macro LVL_OFFS() to calculate the offset of each level

offset records the offset of the first bucket of each level,
this can be replaced by the macro LVL_OFFS()

Signed-off-by: Dianlong Li <dianlong_lee@....com>
---
 kernel/time/timer.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index e3d2c23c413d..3ee5322157a1 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1522,12 +1522,12 @@ static int next_pending_bucket(struct timer_base *base, unsigned offset,
 static unsigned long __next_timer_interrupt(struct timer_base *base)
 {
 	unsigned long clk, next, adj;
-	unsigned lvl, offset = 0;
+	unsigned int lvl;
 
 	next = base->clk + NEXT_TIMER_MAX_DELTA;
 	clk = base->clk;
-	for (lvl = 0; lvl < LVL_DEPTH; lvl++, offset += LVL_SIZE) {
-		int pos = next_pending_bucket(base, offset, clk & LVL_MASK);
+	for (lvl = 0; lvl < LVL_DEPTH; lvl++) {
+		int pos = next_pending_bucket(base, LVL_OFFS(lvl), clk & LVL_MASK);
 		unsigned long lvl_clk = clk & LVL_CLK_MASK;
 
 		if (pos >= 0) {
-- 
2.17.1