linux-kernel - [PATCH] powerpc/time: stop validating rtc_time in .read

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>] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 21 Feb 2018 22:46:33 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-rtc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH] powerpc/time: stop validating rtc_time in .read_time

The RTC core is always calling rtc_valid_tm after the read_time callback.
It is not necessary to call it just before returning from the callback.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 arch/powerpc/kernel/time.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index a32823dcd9a4..f7d96a68ecaa 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -1234,7 +1234,7 @@ void calibrate_delay(void)
 static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
 {
 	ppc_md.get_rtc_time(tm);
-	return rtc_valid_tm(tm);
+	return 0;
 }
 
 static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
-- 
2.16.1