linux-kernel - [PATCH] scsi: core: ufs-pci: hide unused ufshcd_pci

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Date:   Tue, 19 Oct 2021 17:35:51 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Avri Altman <avri.altman@....com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Daejun Park <daejun7.park@...sung.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] scsi: core: ufs-pci: hide unused ufshcd_pci_restore function

From: Arnd Bergmann <arnd@...db.de>

When CONFIG_PM_SLEEP is disabled, ufshcd_pci_restore() fails
to compile but is also unused:

drivers/scsi/ufs/ufshcd-pci.c: In function 'ufshcd_pci_restore':
drivers/scsi/ufs/ufshcd-pci.c:459:16: error: implicit declaration of function 'ufshcd_system_resume'; did you mean 'ufshcd_runtime_resume'? [-Werror=implicit-function-declaration]
  459 |         return ufshcd_system_resume(dev);
      |                ^~~~~~~~~~~~~~~~~~~~
      |                ufshcd_runtime_resume
At top level:
drivers/scsi/ufs/ufshcd-pci.c:452:12: error: 'ufshcd_pci_restore' defined but not used [-Werror=unused-function]
  452 | static int ufshcd_pci_restore(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~

Enclose it within the same #ifdef as the related code.

Fixes: 21431d5bdf15 ("scsi: core: ufs-pci: Force a full restore after suspend-to-disk")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/scsi/ufs/ufshcd-pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index d65e6cd7a28d..51424557810d 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -449,6 +449,7 @@ static struct ufs_hba_variant_ops ufs_intel_lkf_hba_vops = {
 	.device_reset		= ufs_intel_device_reset,
 };
 
+#ifdef CONFIG_PM_SLEEP
 static int ufshcd_pci_restore(struct device *dev)
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
@@ -458,6 +459,7 @@ static int ufshcd_pci_restore(struct device *dev)
 
 	return ufshcd_system_resume(dev);
 }
+#endif
 
 /**
  * ufshcd_pci_shutdown - main function to put the controller in reset state
-- 
2.29.2