This patch adds a of_find_node_by_phandle() and of_get_next_parent() function declaration dependence on"#ifdef CONFIG_OF" in "include/linux/of.h" else part return inline dummy implementations (returning NULL). Without this patch,build system can lead to issues. This was discovered during randconfig testing,in which VEXPRESS_CONFIG was enabled w/o CONFIG_OF being enabled,leading to the following error:
CC drivers/mfd/vexpress-config.o drivers/mfd/vexpress-config.c: In function ‘__vexpress_config_func_get’: drivers/mfd/vexpress-config.c:117:4: error: implicit declaration of function ‘of_find_node_by_phandle’ [-Werror=implicit-function-declaration] bridge_node = of_find_node_by_phandle( ^ drivers/mfd/vexpress-config.c:117:16: warning: assignment makes pointer from integer without a cast [enabled by default] bridge_node = of_find_node_by_phandle(
Signed-off-by: Manjunath Goudar manjunath.goudar@linaro.org Cc: Grant Likely grant.likely@linaro.org Cc: Rob Herring rob.herring@calxeda.com Cc: Arnd Bergmann arnd@arndb.de Cc: Pawel Moll pawel.moll@arm.com Cc: Deepak Saxena dsaxena@linaro.org Cc: Samuel Ortiz sameo@linux.intel.com Cc: Lee Jones lee.jones@linaro.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- include/linux/of.h | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/include/linux/of.h b/include/linux/of.h index 1c7f3b1d..98d09d4 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -340,6 +340,15 @@ int of_device_is_stdout_path(struct device_node *dn);
#else /* CONFIG_OF */
+static inline struct device_node *of_find_node_by_phandle(phandle handle) +{ + return NULL; +} +static inline struct device_node *of_get_next_parent(struct device_node *node) +{ + return NULL; +} + static inline const char* of_node_full_name(struct device_node *np) { return "<no-node>";