linux-kernel - [PATCH] pinctrl: Fix "warning: 'struct pinctrl

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Message-ID: <1319773104-3541-1-git-send-email-Barry.Song@csr.com>
Date:	Thu, 27 Oct 2011 20:38:24 -0700
From:	Barry Song <Barry.Song@....com>
To:	<linus.walleij@...aro.org>
CC:	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <workgroup.linux@....com>,
	Barry Song <Baohua.Song@....com>
Subject: [PATCH] pinctrl: Fix "warning: 'struct pinctrl_dev' declared inside parameter list"

From: Barry Song <Baohua.Song@....com>

when pinctl subsystem is not selected, when compiling drivers including
the include/linux/pinctrl/pinctrl.h, we will get the warning as below:
In file included from include/linux/pinctrl/pinmux.h:17,
                 from drivers/tty/serial/sirfsoc_uart.c:25:
include/linux/pinctrl/pinctrl.h:126: warning: 'struct pinctrl_dev'
		declared inside parameter list
include/linux/pinctrl/pinctrl.h:126: warning: its scope is only this
      definition or declaration, which is probably not what you want

Signed-off-by: Barry Song <Baohua.Song@....com>
---
 include/linux/pinctrl/pinctrl.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index 3605e94..04c0110 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -121,6 +121,7 @@ extern const char *pinctrl_dev_get_name(struct pinctrl_dev *pctldev);
 extern void *pinctrl_dev_get_drvdata(struct pinctrl_dev *pctldev);
 #else
 
+struct pinctrl_dev;
 
 /* Sufficiently stupid default function when pinctrl is not in use */
 static inline bool pin_is_valid(struct pinctrl_dev *pctldev, int pin)
-- 
1.7.1



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