On Tue, Sep 6, 2022, at 11:07 PM, Sudip Mukherjee wrote: > On Tue, Sep 6, 2022 at 6:15 PM Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: >> On Tue, Sep 06, 2022 at 03:23:22PM +0100, Sudip Mukherjee (Codethink) wrote: >> > >> > drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c:311:12: error: 'pci1xxxx_gpio_resume' defined but not used [-Werror=unused-function] >> > 311 | static int pci1xxxx_gpio_resume(struct device *dev) >> > | ^~~~~~~~~~~~~~~~~~~~ >> > drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c:295:12: error: 'pci1xxxx_gpio_suspend' defined but not used [-Werror=unused-function] >> > 295 | static int pci1xxxx_gpio_suspend(struct device *dev) >> > | ^~~~~~~~~~~~~~~~~~~~~ >> > >> > >> > git bisect pointed to 4ec7ac90ff39 ("misc: microchip: pci1xxxx: Add power management functions - suspend & resume handlers."). >> > > > Looking at other drivers which uses SIMPLE_DEV_PM_OPS, I think > pci1xxxx_gpio_suspend() and pci1xxxx_gpio_resume() needs to be under > "#ifdef CONFIG_PM_SLEEP". That would work, but a better fix is to use DEFINE_SIMPLE_DEV_PM_OPS() in place of the deprecated SIMPLE_DEV_PM_OPS(). Arnd