linux-kernel - [PATCH v4 2/8] serial: sunzilog: Remove unnecessary volatile keyword

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Date:	Wed, 13 Aug 2014 12:28:52 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Russell King <linux@....linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Sam Ravnborg <sam@...nborg.org>,
	linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
	linux-s390@...r.kernel.org, sparclinux@...r.kernel.org,
	x86@...nel.org, linux-serial@...r.kernel.org,
	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 2/8] serial: sunzilog: Remove unnecessary volatile keyword

From: Thierry Reding <treding@...dia.com>

The field annotated with volatile are all accessed through I/O accessors
so they don't need to be explicitly marked. The accessors will take care
of it.

Signed-off-by: Thierry Reding <treding@...dia.com>
---
Changes in v4:
- new patch

 drivers/tty/serial/sunzilog.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/sunzilog.h b/drivers/tty/serial/sunzilog.h
index 5dec7b47cc38..de2850c1ab57 100644
--- a/drivers/tty/serial/sunzilog.h
+++ b/drivers/tty/serial/sunzilog.h
@@ -2,10 +2,10 @@
 #define _SUNZILOG_H
 
 struct zilog_channel {
-	volatile unsigned char control;
-	volatile unsigned char __pad1;
-	volatile unsigned char data;
-	volatile unsigned char __pad2;
+	unsigned char control;
+	unsigned char __pad1;
+	unsigned char data;
+	unsigned char __pad2;
 };
 
 struct zilog_layout {
-- 
2.0.4

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