netdev - [PATCH net-next 2/3] soc: qcom: mdt_loader: define stubs for COMPILE

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Date:   Tue,  5 Jan 2021 20:38:11 -0600
From:   Alex Elder <elder@...aro.org>
To:     bjorn.andersson@...aro.org, agross@...nel.org
Cc:     davem@...emloft.net, kuba@...nel.org, ohad@...ery.com,
        evgreen@...omium.org, cpratapa@...eaurora.org,
        subashab@...eaurora.org, netdev@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH net-next 2/3] soc: qcom: mdt_loader: define stubs for COMPILE_TEST

Define stub functions for the exposed MDT functions in case
QCOM_MDT_LOADER is not configured.  This allows users of these
functions to link correctly for COMPILE_TEST builds without
QCOM_SCM enabled.

Signed-off-by: Alex Elder <elder@...aro.org>
---
 include/linux/soc/qcom/mdt_loader.h | 35 +++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/include/linux/soc/qcom/mdt_loader.h b/include/linux/soc/qcom/mdt_loader.h
index e600baec68253..afd47217996b0 100644
--- a/include/linux/soc/qcom/mdt_loader.h
+++ b/include/linux/soc/qcom/mdt_loader.h
@@ -11,6 +11,8 @@
 struct device;
 struct firmware;
 
+#if IS_ENABLED(CONFIG_QCOM_MDT_LOADER)
+
 ssize_t qcom_mdt_get_size(const struct firmware *fw);
 int qcom_mdt_load(struct device *dev, const struct firmware *fw,
 		  const char *fw_name, int pas_id, void *mem_region,
@@ -23,4 +25,37 @@ int qcom_mdt_load_no_init(struct device *dev, const struct firmware *fw,
 			  phys_addr_t *reloc_base);
 void *qcom_mdt_read_metadata(const struct firmware *fw, size_t *data_len);
 
+#else /* !IS_ENABLED(CONFIG_QCOM_MDT_LOADER) */
+
+static inline ssize_t qcom_mdt_get_size(const struct firmware *fw)
+{
+	return -ENODEV;
+}
+
+static inline int qcom_mdt_load(struct device *dev, const struct firmware *fw,
+				const char *fw_name, int pas_id,
+				void *mem_region, phys_addr_t mem_phys,
+				size_t mem_size, phys_addr_t *reloc_base)
+{
+	return -ENODEV;
+}
+
+static inline int qcom_mdt_load_no_init(struct device *dev,
+					const struct firmware *fw,
+					const char *fw_name, int pas_id,
+					void *mem_region, phys_addr_t mem_phys,
+					size_t mem_size,
+					phys_addr_t *reloc_base)
+{
+	return -ENODEV;
+}
+
+static inline void *qcom_mdt_read_metadata(const struct firmware *fw,
+					   size_t *data_len)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+#endif /* !IS_ENABLED(CONFIG_QCOM_MDT_LOADER) */
+
 #endif
-- 
2.20.1