linux-kernel - [PATCH] drivers/thermal: optimize the for circle to run a bit fast

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20201019082235.41773-1-bernard@vivo.com>
Date:   Mon, 19 Oct 2020 01:22:35 -0700
From:   Bernard Zhao <bernard@...o.com>
To:     Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     opensource.kernel@...o.com, Bernard Zhao <bernard@...o.com>
Subject: [PATCH] drivers/thermal: optimize the for circle to run a bit fast

Function thermal_zone_device_register, in the for circle, if the
first if branch set the count bit in tz->trips_disabled, there is
no need to set in the other if branch again.
This change is to make the code run a bit fast and readable.

Signed-off-by: Bernard Zhao <bernard@...o.com>
---
 drivers/thermal/thermal_core.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index c6d74bc1c90b..03577794eea3 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1446,10 +1446,14 @@ thermal_zone_device_register(const char *type, int trips, int mask,
 		goto release_device;
 
 	for (count = 0; count < trips; count++) {
-		if (tz->ops->get_trip_type(tz, count, &trip_type))
+		if (tz->ops->get_trip_type(tz, count, &trip_type)) {
 			set_bit(count, &tz->trips_disabled);
-		if (tz->ops->get_trip_temp(tz, count, &trip_temp))
+			continue;
+		}
+		if (tz->ops->get_trip_temp(tz, count, &trip_temp)) {
 			set_bit(count, &tz->trips_disabled);
+			continue;
+		}
 		/* Check for bogus trip points */
 		if (trip_temp == 0)
 			set_bit(count, &tz->trips_disabled);
-- 
2.28.0