[PATCH] mmc: brcmstb: Fix sdhci_pltfm_suspend link error

[Alan Cooper]

> I just posted a new patch for this, please have a look and test it.
>
> Kind regards
> Uffe

I tested your new patch and it works.
Reviewed-and-tested-by: Al Cooper <alcooperx at gmail.com>

Thanks
Al



On Tue, Jan 26, 2021 at 4:55 AM Ulf Hansson <ulf.hansson at linaro.org> wrote:
>
> On Mon, 25 Jan 2021 at 18:40, Florian Fainelli <f.fainelli at gmail.com> wrote:
> >
> > +Nicolas,
> >
> > On 1/25/2021 4:50 AM, Arnd Bergmann wrote:
> > > From: Arnd Bergmann <arnd at arndb.de>
> > >
> > > sdhci_pltfm_suspend() is only available when CONFIG_PM_SLEEP
> > > support is built into the kernel, which caused a regression
> > > in a recent bugfix:
> > >
> > > ld.lld: error: undefined symbol: sdhci_pltfm_suspend
> > >>>> referenced by sdhci-brcmstb.c
> > >>>>               mmc/host/sdhci-brcmstb.o:(sdhci_brcmstb_shutdown) in archive drivers/built-in.a
> > >
> > > Making the call conditional on the symbol fixes the link
> > > error.
> > >
> > > Fixes: 5b191dcba719 ("mmc: sdhci-brcmstb: Fix mmc timeout errors on S5 suspend")
> > > Fixes: e7b5d63a82fe ("mmc: sdhci-brcmstb: Add shutdown callback")
> > > Cc: stable at vger.kernel.org
> > > Signed-off-by: Arnd Bergmann <arnd at arndb.de>
> > > ---
> > > It would be helpful if someone could test this to ensure that the
> > > driver works correctly even when CONFIG_PM_SLEEP is disabled
> >
> > Why not create stubs for sdhci_pltfm_suspend() when CONFIG_PM_SLEEP=n? I
> > don't think this is going to be a functional issue given that the
> > purpose of having the .shutdown() function is to save power if we cannot
> > that is fine, too.
> > --
> > Florian
>
> I would prefer this approach - we shouldn't leave stub functions
> unimplemented, which is what looks to me.
>
> I just posted a new patch for this, please have a look and test it.
>
> Kind regards
> Uffe