linux-kernel - [PATCH] net: can: Disable broken flexcan driver build for big endian CPU on ARM

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Message-Id: <1388944283-29990-1-git-send-email-linux@roeck-us.net>
Date:	Sun,  5 Jan 2014 09:51:23 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Wolfgang Grandegger <wg@...ndegger.com>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Cc:	linux-can@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH] net: can: Disable broken flexcan driver build for big endian CPU on ARM

Building arm:allmodconfig fails with

flexcan.c: In function 'flexcan_read':
flexcan.c:243:2: error: implicit declaration of function 'in_be32'
flexcan.c: In function 'flexcan_write':
flexcan.c:248:2: error: implicit declaration of function 'out_be32'

in_be32 and out_be32 do not (or no longer) exist for ARM targets.
Mark the build for arm on big endian CPUs as broken.

Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
If there is a better solution, please let me know and I'll be happy
to provide a patch.

 drivers/net/can/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index 3c06947..8d202f4 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -104,7 +104,7 @@ config CAN_JANZ_ICAN3
 
 config CAN_FLEXCAN
 	tristate "Support for Freescale FLEXCAN based chips"
-	depends on ARM || PPC
+	depends on (ARM || PPC) && (BROKEN || !ARM || CPU_LITTLE_ENDIAN)
 	---help---
 	  Say Y here if you want to support for Freescale FlexCAN.
 
-- 
1.7.9.7

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