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IS_ENABLED() is true for both =y and =m, so the real qcom_ubwc_config_get_data() declaration is exposed to built-in callers, which cannot resolve it at vmlinux link time. IS_REACHABLE() is false when the caller is built-in and the dependency is only a module, causing the inline stub to be used instead. Fixes: 1b445022d1d0 ("soc: qcom: ubwc: Get HBB from SMEM") Signed-off-by: Daniel Baluta --- include/linux/soc/qcom/ubwc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/soc/qcom/ubwc.h b/include/linux/soc/qcom/ubwc.h index a7372d9c25fbc..1a61238f6d4d5 100644 --- a/include/linux/soc/qcom/ubwc.h +++ b/include/linux/soc/qcom/ubwc.h @@ -36,7 +36,7 @@ struct qcom_ubwc_cfg_data { #define UBWC_5_0 0x50000000 #define UBWC_6_0 0x60000000 -#if IS_ENABLED(CONFIG_QCOM_UBWC_CONFIG) +#if IS_REACHABLE(CONFIG_QCOM_UBWC_CONFIG) const struct qcom_ubwc_cfg_data *qcom_ubwc_config_get_data(void); #else static inline const struct qcom_ubwc_cfg_data *qcom_ubwc_config_get_data(void) -- 2.45.2