platform/x86: amd-pmc: Fix build error unused-function

If CONFIG_SUSPEND and CONFIG_DEBUG_FS are not set.

compile error:
drivers/platform/x86/amd-pmc.c:323:12: error: ‘get_metrics_table’ defined but not used [-Werror=unused-function]
 static int get_metrics_table(struct amd_pmc_dev *pdev, struct smu_metrics *table)
            ^~~~~~~~~~~~~~~~~
drivers/platform/x86/amd-pmc.c:298:12: error: ‘amd_pmc_idlemask_read’ defined but not used [-Werror=unused-function]
 static int amd_pmc_idlemask_read(struct amd_pmc_dev *pdev, struct device *dev,
            ^~~~~~~~~~~~~~~~~~~~~
drivers/platform/x86/amd-pmc.c:196:12: error: ‘amd_pmc_get_smu_version’ defined but not used [-Werror=unused-function]
 static int amd_pmc_get_smu_version(struct amd_pmc_dev *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

To fix building warning, wrap all related code with CONFIG_SUSPEND or CONFIG_DEBUG_FS.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ren Zhijie <renzhijie2@huawei.com>
Link: https://lore.kernel.org/r/20220505121958.138905-1-renzhijie2@huawei.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index e266492d3ef73d7a5375d09a8aab00457ed9f126..f11d18beac1876343c85489d901373ad99dc8d1d 100644 (file)
--- a/drivers/platform/x86/amd-pmc.c
+++ b/drivers/platform/x86/amd-pmc.c
@@ -164,7 +164,6 @@ static int amd_pmc_read_stb(struct amd_pmc_dev *dev, u32 *buf);
 #ifdef CONFIG_SUSPEND
 static int amd_pmc_write_stb(struct amd_pmc_dev *dev, u32 data);
 #endif
-static int amd_pmc_setup_smu_logging(struct amd_pmc_dev *dev);
 
 static inline u32 amd_pmc_reg_read(struct amd_pmc_dev *dev, int reg_offset)
 {
@@ -275,6 +274,40 @@ static const struct file_operations amd_pmc_stb_debugfs_fops_v2 = {
        .release = amd_pmc_stb_debugfs_release_v2,
 };
 
+#if defined(CONFIG_SUSPEND) || defined(CONFIG_DEBUG_FS)
+static int amd_pmc_setup_smu_logging(struct amd_pmc_dev *dev)
+{
+       if (dev->cpu_id == AMD_CPU_ID_PCO) {
+               dev_warn_once(dev->dev, "SMU debugging info not supported on this platform\n");
+               return -EINVAL;
+       }
+
+       /* Get Active devices list from SMU */
+       if (!dev->active_ips)
+               amd_pmc_send_cmd(dev, 0, &dev->active_ips, SMU_MSG_GET_SUP_CONSTRAINTS, 1);
+
+       /* Get dram address */
+       if (!dev->smu_virt_addr) {
+               u32 phys_addr_low, phys_addr_hi;
+               u64 smu_phys_addr;
+
+               amd_pmc_send_cmd(dev, 0, &phys_addr_low, SMU_MSG_LOG_GETDRAM_ADDR_LO, 1);
+               amd_pmc_send_cmd(dev, 0, &phys_addr_hi, SMU_MSG_LOG_GETDRAM_ADDR_HI, 1);
+               smu_phys_addr = ((u64)phys_addr_hi << 32 | phys_addr_low);
+
+               dev->smu_virt_addr = devm_ioremap(dev->dev, smu_phys_addr,
+                                                 sizeof(struct smu_metrics));
+               if (!dev->smu_virt_addr)
+                       return -ENOMEM;
+       }
+
+       /* Start the logging */
+       amd_pmc_send_cmd(dev, 0, NULL, SMU_MSG_LOG_RESET, 0);
+       amd_pmc_send_cmd(dev, 0, NULL, SMU_MSG_LOG_START, 0);
+
+       return 0;
+}
+
 static int amd_pmc_idlemask_read(struct amd_pmc_dev *pdev, struct device *dev,
                                 struct seq_file *s)
 {
@@ -314,6 +347,7 @@ static int get_metrics_table(struct amd_pmc_dev *pdev, struct smu_metrics *table
        memcpy_fromio(table, pdev->smu_virt_addr, sizeof(struct smu_metrics));
        return 0;
 }
+#endif /* CONFIG_SUSPEND || CONFIG_DEBUG_FS */
 
 #ifdef CONFIG_SUSPEND
 static void amd_pmc_validate_deepest(struct amd_pmc_dev *pdev)
@@ -475,39 +509,6 @@ static inline void amd_pmc_dbgfs_unregister(struct amd_pmc_dev *dev)
 }
 #endif /* CONFIG_DEBUG_FS */
 
-static int amd_pmc_setup_smu_logging(struct amd_pmc_dev *dev)
-{
-       if (dev->cpu_id == AMD_CPU_ID_PCO) {
-               dev_warn_once(dev->dev, "SMU debugging info not supported on this platform\n");
-               return -EINVAL;
-       }
-
-       /* Get Active devices list from SMU */
-       if (!dev->active_ips)
-               amd_pmc_send_cmd(dev, 0, &dev->active_ips, SMU_MSG_GET_SUP_CONSTRAINTS, 1);
-
-       /* Get dram address */
-       if (!dev->smu_virt_addr) {
-               u32 phys_addr_low, phys_addr_hi;
-               u64 smu_phys_addr;
-
-               amd_pmc_send_cmd(dev, 0, &phys_addr_low, SMU_MSG_LOG_GETDRAM_ADDR_LO, 1);
-               amd_pmc_send_cmd(dev, 0, &phys_addr_hi, SMU_MSG_LOG_GETDRAM_ADDR_HI, 1);
-               smu_phys_addr = ((u64)phys_addr_hi << 32 | phys_addr_low);
-
-               dev->smu_virt_addr = devm_ioremap(dev->dev, smu_phys_addr,
-                                                 sizeof(struct smu_metrics));
-               if (!dev->smu_virt_addr)
-                       return -ENOMEM;
-       }
-
-       /* Start the logging */
-       amd_pmc_send_cmd(dev, 0, NULL, SMU_MSG_LOG_RESET, 0);
-       amd_pmc_send_cmd(dev, 0, NULL, SMU_MSG_LOG_START, 0);
-
-       return 0;
-}
-
 static void amd_pmc_dump_registers(struct amd_pmc_dev *dev)
 {
        u32 value, message, argument, response;