linux-kernel - [PATCH] cpuidle: Drop unnecessary type cast in cpuidle_poll

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Message-ID: <9680649.eAqxiQ8Vpk@kreacher>
Date:   Wed, 11 Dec 2019 11:30:50 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux PM <linux-pm@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
Subject: [PATCH] cpuidle: Drop unnecessary type cast in cpuidle_poll_time()

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

The data type of the target_residency_ns field in struct cpuidle_state
is u64, so it does not need to be cast into u64.

Get read of the unnecessary type cast.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---

On top of the linux-next branch of linux-pm.git from today.

---
 drivers/cpuidle/cpuidle.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-pm/drivers/cpuidle/cpuidle.c
===================================================================
--- linux-pm.orig/drivers/cpuidle/cpuidle.c
+++ linux-pm/drivers/cpuidle/cpuidle.c
@@ -381,7 +381,7 @@ u64 cpuidle_poll_time(struct cpuidle_dri
 		if (dev->states_usage[i].disable)
 			continue;
 
-		limit_ns = (u64)drv->states[i].target_residency_ns;
+		limit_ns = drv->states[i].target_residency_ns;
 		break;
 	}