Re: linux-next: build failure after merge of the mmc-uh tree

[Sonny Rao]

On Sun, Jul 27, 2014 at 9:46 PM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> Hi Ulf,
>
> After merging the mmc-uh tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
>
> drivers/mmc/host/dw_mmc.c: In function 'dw_mci_reset':
> drivers/mmc/host/dw_mmc.c:2262:3: error: implicit declaration of function 'dw_mci_idmac_reset' [-Werror=implicit-function-declaration]
>    dw_mci_idmac_reset(host);
>    ^

Hi, sorry about that.  It looks like it fails to build when
CONFIG_MMC_DW_IDMAC is not set.
I changed that bit of code from using #ifdef to using just C if
statement, but I think in this case the function being called doesn't
exist when CONFIG_MMC_DW_IDMAC is not set, so that was incorrect and
we should go back to using something like:

#if IS_ENABLED(CONFIG_MMC_DW_IDMAC)
        /* It is also recommended that we reset and reprogram idmac */
        dw_mci_idmac_reset(host);
#endif


Ulf, I can respin the patch if you'd like or feel free to fix it
yourself too.  Thanks.


>
> Caused by commit 25f7dadbd982 ("mmc: dw_mmc: change to use recommended
> reset procedure").
>
> I have used the mmc-uh tree from next-20140725 for today.
> --
> Cheers,
> Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx
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