From mboxrd@z Thu Jan 1 00:00:00 1970 From: manjunath.goudar@linaro.org (Manjunath Goudar) Date: Mon, 12 Aug 2013 18:25:15 +0530 Subject: [PATCH V2] MFD: Make VEXPRESS MFD controller depends on VEXPRESS systems In-Reply-To: <1375592514-14213-1-git-send-email-manjunath.goudar@linaro.org> References: <1375592514-14213-1-git-send-email-manjunath.goudar@linaro.org> Message-ID: <1376312115-10326-1-git-send-email-manjunath.goudar@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Cc: Arnd Bergmann Cc: Pawel Moll Cc: Deepak Saxena Cc: Samuel Ortiz Cc: Lee Jones V2: -Made of_find_node_by_phandle() and of_get_next_parent() function declaration dependence on"#ifdef CONFIG_OF" in "include/linux/of.h" instead of Kconfig dependence setting in V1 patch and else part return inline dummy implementations (returning NULL) to fix the above randconfig error. --- include/linux/of.h | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/include/linux/of.h b/include/linux/of.h index 90a8811..4be252a 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -196,10 +196,22 @@ static inline struct device_node *of_find_matching_node( #define for_each_matching_node_and_match(dn, matches, match) \ for (dn = of_find_matching_node_and_match(NULL, matches, match); \ dn; dn = of_find_matching_node_and_match(dn, matches, match)) -extern struct device_node *of_find_node_by_path(const char *path); + +#ifdef CONFIG_OF extern struct device_node *of_find_node_by_phandle(phandle handle); -extern struct device_node *of_get_parent(const struct device_node *node); extern struct device_node *of_get_next_parent(struct device_node *node); +#else +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; +} +#endif +extern struct device_node *of_find_node_by_path(const char *path); +extern struct device_node *of_get_parent(const struct device_node *node); extern struct device_node *of_get_next_child(const struct device_node *node, struct device_node *prev); extern struct device_node *of_get_next_available_child( -- 1.8.1.2