From: Colin King <colin.king@canonical.com>
To: Wolfgang Grandegger <wg@grandegger.com>,
Marc Kleine-Budde <mkl@pengutronix.de>,
"David S . Miller" <davem@davemloft.net>,
linux-can@vger.kernel.org, netdev@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH][next] can: kvaser_pciefd: remove redundant negative check on trigger
Date: Thu, 25 Jul 2019 12:25:09 +0100 [thread overview]
Message-ID: <20190725112509.1075-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
The check to see if trigger is less than zero is always false, trigger
is always in the range 0..255. Hence the check is redundant and can
be removed.
Addresses-Coverity: ("Logically dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/net/can/kvaser_pciefd.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c
index 3af747cbbde4..68e00aad0810 100644
--- a/drivers/net/can/kvaser_pciefd.c
+++ b/drivers/net/can/kvaser_pciefd.c
@@ -652,9 +652,6 @@ static void kvaser_pciefd_pwm_stop(struct kvaser_pciefd_can *can)
top = (pwm_ctrl >> KVASER_PCIEFD_KCAN_PWM_TOP_SHIFT) & 0xff;
trigger = (100 * top + 50) / 100;
- if (trigger < 0)
- trigger = 0;
-
pwm_ctrl = trigger & 0xff;
pwm_ctrl |= (top & 0xff) << KVASER_PCIEFD_KCAN_PWM_TOP_SHIFT;
iowrite32(pwm_ctrl, can->reg_base + KVASER_PCIEFD_KCAN_PWM_REG);
--
2.20.1
next reply other threads:[~2019-07-25 11:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-25 11:25 Colin King [this message]
2019-07-25 12:37 ` [PATCH][next] can: kvaser_pciefd: remove redundant negative check on trigger walter harms
2019-07-25 12:41 ` Colin Ian King
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