linux-kernel - [PATCH] interconnect: qcom: Simplify the vcd compare function

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Message-Id: <20201013171923.7351-1-georgi.djakov@linaro.org>
Date:   Tue, 13 Oct 2020 20:19:23 +0300
From:   Georgi Djakov <georgi.djakov@...aro.org>
To:     linux-pm@...r.kernel.org
Cc:     mdtipton@...eaurora.org, okukatla@...eaurora.org,
        sibis@...eaurora.org, bjorn.andersson@...aro.org,
        linux-kernel@...r.kernel.org,
        Georgi Djakov <georgi.djakov@...aro.org>
Subject: [PATCH] interconnect: qcom: Simplify the vcd compare function

Let's simplify the cmp_vcd() function and replace the conditionals
with just a single statement, which also improves readability.

Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>
---
 drivers/interconnect/qcom/bcm-voter.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/interconnect/qcom/bcm-voter.c b/drivers/interconnect/qcom/bcm-voter.c
index 887d13721e52..1cc565bce2f4 100644
--- a/drivers/interconnect/qcom/bcm-voter.c
+++ b/drivers/interconnect/qcom/bcm-voter.c
@@ -41,17 +41,10 @@ struct bcm_voter {
 
 static int cmp_vcd(void *priv, struct list_head *a, struct list_head *b)
 {
-	const struct qcom_icc_bcm *bcm_a =
-			list_entry(a, struct qcom_icc_bcm, list);
-	const struct qcom_icc_bcm *bcm_b =
-			list_entry(b, struct qcom_icc_bcm, list);
-
-	if (bcm_a->aux_data.vcd < bcm_b->aux_data.vcd)
-		return -1;
-	else if (bcm_a->aux_data.vcd == bcm_b->aux_data.vcd)
-		return 0;
-	else
-		return 1;
+	const struct qcom_icc_bcm *bcm_a = list_entry(a, struct qcom_icc_bcm, list);
+	const struct qcom_icc_bcm *bcm_b = list_entry(b, struct qcom_icc_bcm, list);
+
+	return bcm_a->aux_data.vcd - bcm_b->aux_data.vcd;
 }
 
 static u64 bcm_div(u64 num, u32 base)