From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Subject: [PATCH] of_net.h: Provide dummy functions if OF_NET is not configured Date: Mon, 1 Apr 2013 11:19:09 -0700 Message-ID: <1364840349-10696-1-git-send-email-linux@roeck-us.net> Cc: Grant Likely , Rob Herring , "David S. Miller" , Guenter Roeck , David Daney To: linux-kernel@vger.kernel.org, devicetree-discuss@lists.ozlabs.org, netdev@vger.kernel.org Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org of_get_mac_address() and of_get_phy_mode() are only provided if OF_NET is configured. While most callers check for the define, not all do, and those who do require #ifdef around the code. For those who don't, the missing check can result in errors such as arch/powerpc/sysdev/tsi108_dev.c:107:3: error: implicit declaration of function 'of_get_mac_address' [-Werror=implicit-function-declaration] arch/powerpc/sysdev/mv64x60_dev.c:253:2: error: implicit declaration of function 'of_get_mac_address' [-Werror=implicit-function-declaration] Provide dummy function declarations if OF_NET is not configured. This is safe because all callers do check the return values. If desired, at least some of the #ifdefs in the code can subsequently be removed. Cc: David Daney Signed-off-by: Guenter Roeck --- include/linux/of_net.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/linux/of_net.h b/include/linux/of_net.h index f474641..61bf53b 100644 --- a/include/linux/of_net.h +++ b/include/linux/of_net.h @@ -11,6 +11,16 @@ #include extern const int of_get_phy_mode(struct device_node *np); extern const void *of_get_mac_address(struct device_node *np); +#else +static inline const int of_get_phy_mode(struct device_node *np) +{ + return -ENODEV; +} + +static inline const void *of_get_mac_address(struct device_node *np) +{ + return NULL; +} #endif #endif /* __LINUX_OF_NET_H */ -- 1.7.9.7