build failure of next-20220718 due to 'imx6_pcie_host_exit' defined but not used

[Bjorn Helgaas]

On Tue, Jul 19, 2022 at 11:16:40PM +0200, Arnd Bergmann wrote:
> On Tue, Jul 19, 2022 at 11:04 PM Bjorn Helgaas <helgaas at kernel.org> wrote:
> >
> > commit 0e4daeaa52ca ("PCI: imx6: Convert to NOIRQ_SYSTEM_SLEEP_PM_OPS()")
> > Author: Bjorn Helgaas <bhelgaas at google.com>
> > Date:   Tue Jul 19 15:50:18 2022 -0500
> >
> >     PCI: imx6: Convert to NOIRQ_SYSTEM_SLEEP_PM_OPS()
> >
> >     Replace SET_NOIRQ_SYSTEM_SLEEP_PM_OPS() with NOIRQ_SYSTEM_SLEEP_PM_OPS(),
> >     which has the advantage that the compiler always sees the PM callbacks as
> >     referenced, so they don't need to be wrapped with "#ifdef CONFIG_PM_SLEEP"
> >     or tagged with "__maybe_unused" to avoid "defined but not used" warnings.
> >
> >     See 1a3c7bb08826 ("PM: core: Add new *_PM_OPS macros, deprecate old ones").
> >
> >     Signed-off-by: Bjorn Helgaas <bhelgaas at google.com>
> 
> Reviewed-by: Arnd Bergmann <arnd at arndb.de>

Thanks!  And sorry about being crabby earlier.  If this allows us to
get rid of those #ifdefs and __maybe_unused, it's a great improvement!

Bjorn