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The virtio_pci_freeze/restore are defined under CONFIG_PM but is used by SET_SYSTEM_SLEEP_PM_OPS macro, which is defined under CONFIG_PM_SLEEP. So if CONFIG_PM_SLEEP is not cofigured but CONFIG_PM_RUNTIME is, the following warning message appeared: drivers/virtio/virtio_pci.c:770:12: warning: ‘virtio_pci_freeze’ defined but not used [-Wunused-function] static int virtio_pci_freeze(struct device *dev) ^ drivers/virtio/virtio_pci.c:790:12: warning: ‘virtio_pci_restore’ defined but not used [-Wunused-function] static int virtio_pci_restore(struct device *dev) ^ Fix it by changing CONFIG_PM to CONFIG_PM_SLEEP. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> |
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.. | ||
config.c | ||
Kconfig | ||
Makefile | ||
virtio_balloon.c | ||
virtio_mmio.c | ||
virtio_pci.c | ||
virtio_ring.c | ||
virtio.c |