linux-kernel - [PATCH] platform/x86: amd-pmc: Shuffle location of amd_pmc_get_smu

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Message-Id: <20220418213800.21257-1-nathan@kernel.org>
Date:   Mon, 18 Apr 2022 14:38:00 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Shyam Sundar S K <Shyam-sundar.S-k@....com>,
        Mario Limonciello <mario.limonciello@....com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>
Cc:     platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        patches@...ts.linux.dev, Nathan Chancellor <nathan@...nel.org>
Subject: [PATCH] platform/x86: amd-pmc: Shuffle location of amd_pmc_get_smu_version()

When CONFIG_DEBUG_FS is disabled, amd_pmc_get_smu_version() is unused:

  drivers/platform/x86/amd-pmc.c:196:12: warning: unused function 'amd_pmc_get_smu_version' [-Wunused-function]
  static int amd_pmc_get_smu_version(struct amd_pmc_dev *dev)
             ^
  1 warning generated.

Eliminate the warning by moving amd_pmc_get_smu_version() to the
CONFIG_DEBUG_FS block where it is used.

Fixes: b0c07116c894 ("platform/x86: amd-pmc: Avoid reading SMU version at probe time")
Signed-off-by: Nathan Chancellor <nathan@...nel.org>
---
 drivers/platform/x86/amd-pmc.c | 40 +++++++++++++++++-----------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index 668a1d6c11ee..e266492d3ef7 100644
--- a/drivers/platform/x86/amd-pmc.c
+++ b/drivers/platform/x86/amd-pmc.c
@@ -193,26 +193,6 @@ struct smu_metrics {
 	u64 timecondition_notmet_totaltime[SOC_SUBSYSTEM_IP_MAX];
 } __packed;
 
-static int amd_pmc_get_smu_version(struct amd_pmc_dev *dev)
-{
-	int rc;
-	u32 val;
-
-	rc = amd_pmc_send_cmd(dev, 0, &val, SMU_MSG_GETSMUVERSION, 1);
-	if (rc)
-		return rc;
-
-	dev->smu_program = (val >> 24) & GENMASK(7, 0);
-	dev->major = (val >> 16) & GENMASK(7, 0);
-	dev->minor = (val >> 8) & GENMASK(7, 0);
-	dev->rev = (val >> 0) & GENMASK(7, 0);
-
-	dev_dbg(dev->dev, "SMU program %u version is %u.%u.%u\n",
-		dev->smu_program, dev->major, dev->minor, dev->rev);
-
-	return 0;
-}
-
 static int amd_pmc_stb_debugfs_open(struct inode *inode, struct file *filp)
 {
 	struct amd_pmc_dev *dev = filp->f_inode->i_private;
@@ -417,6 +397,26 @@ static int s0ix_stats_show(struct seq_file *s, void *unused)
 }
 DEFINE_SHOW_ATTRIBUTE(s0ix_stats);
 
+static int amd_pmc_get_smu_version(struct amd_pmc_dev *dev)
+{
+	int rc;
+	u32 val;
+
+	rc = amd_pmc_send_cmd(dev, 0, &val, SMU_MSG_GETSMUVERSION, 1);
+	if (rc)
+		return rc;
+
+	dev->smu_program = (val >> 24) & GENMASK(7, 0);
+	dev->major = (val >> 16) & GENMASK(7, 0);
+	dev->minor = (val >> 8) & GENMASK(7, 0);
+	dev->rev = (val >> 0) & GENMASK(7, 0);
+
+	dev_dbg(dev->dev, "SMU program %u version is %u.%u.%u\n",
+		dev->smu_program, dev->major, dev->minor, dev->rev);
+
+	return 0;
+}
+
 static int amd_pmc_idlemask_show(struct seq_file *s, void *unused)
 {
 	struct amd_pmc_dev *dev = s->private;

base-commit: b0c07116c894325d40a218f558047f925e4b3bdb
-- 
2.36.0