Re: [PATCH] ata: libata: add workaround to flip LPM during suspend/resume

[kernel test robot]

Hi Koba,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.5 next-20230831]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Koba-Ko/ata-libata-add-workaround-to-flip-LPM-during-suspend-resume/20230901-030957
base:   linus/master
patch link:    https://lore.kernel.org/r/20230831190828.1171119-1-koba.ko%40canonical.com
patch subject: [PATCH] ata: libata: add workaround to flip LPM during suspend/resume
config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20230901/202309010504.kO8lW46F-lkp@xxxxxxxxx/config)
compiler: loongarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230901/202309010504.kO8lW46F-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309010504.kO8lW46F-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/ata/ahci.c:98:12: warning: 'ahci_intel_port_suspend' declared 'static' but never defined [-Wunused-function]
      98 | static int ahci_intel_port_suspend(struct ata_port *ap, pm_message_t mesg);
         |            ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/ata/ahci.c:99:12: warning: 'ahci_intel_port_resume' declared 'static' but never defined [-Wunused-function]
      99 | static int ahci_intel_port_resume(struct ata_port *ap);
         |            ^~~~~~~~~~~~~~~~~~~~~~


vim +98 drivers/ata/ahci.c

    82	
    83	static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
    84	static void ahci_remove_one(struct pci_dev *dev);
    85	static void ahci_shutdown_one(struct pci_dev *dev);
    86	static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv);
    87	static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
    88					 unsigned long deadline);
    89	static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
    90				      unsigned long deadline);
    91	static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
    92	static bool is_mcp89_apple(struct pci_dev *pdev);
    93	static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
    94					unsigned long deadline);
    95	#ifdef CONFIG_PM
    96	static int ahci_pci_device_runtime_suspend(struct device *dev);
    97	static int ahci_pci_device_runtime_resume(struct device *dev);
  > 98	static int ahci_intel_port_suspend(struct ata_port *ap, pm_message_t mesg);
  > 99	static int ahci_intel_port_resume(struct ata_port *ap);
   100	#ifdef CONFIG_PM_SLEEP
   101	static int ahci_pci_device_suspend(struct device *dev);
   102	static int ahci_pci_device_resume(struct device *dev);
   103	#endif
   104	#endif /* CONFIG_PM */
   105	

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