linux-kernel - [PATCH 1/2] serial/8250_core: Add reference to uacess.h

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Date:	Tue,  9 Sep 2014 07:17:45 +0200
From:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>, Alan Cox <alan@...ux.intel.com>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Peter Hurley <peter@...leysoftware.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@...achi.com>,
	Joe Schultz <jschultz@...-inc.com>,
	Ingo Molnar <mingo@...e.hu>,
	Doug Anderson <dianders@...omium.org>,
	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Subject: [PATCH 1/2] serial/8250_core: Add reference to uacess.h

Commit: e676253b19b2d269cccf67fdb1592120a0cd0676 [3/21] serial/8250: Add
support for RS485 IOCTLs, adds a building error on arch m32r.

All error/warnings:

   drivers/tty/serial/8250/8250_core.c: In function 'serial8250_ioctl':
>> drivers/tty/serial/8250/8250_core.c:2859:3: error: implicit declaration of function 'copy_from_user' [-Werror=implicit-function-declaration]
      if (copy_from_user(&rs485_config, (void __user *)arg,
      ^
>> drivers/tty/serial/8250/8250_core.c:2871:3: error: implicit declaration of function 'copy_to_user' [-Werror=implicit-function-declaration]
      if (copy_to_user((void __user *)arg, &up->rs485,
      ^
   cc1: some warnings being treated as errors

Reported-by: kbuild test robot <fengguang.wu@...el.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
---
 drivers/tty/serial/8250/8250_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 872c020..a0c1d64 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -37,6 +37,7 @@
 #include <linux/nmi.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
+#include <linux/uaccess.h>
 #ifdef CONFIG_SPARC
 #include <linux/sunserialcore.h>
 #endif
-- 
2.1.0

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