Re: next build: 9 warnings 0 failures (next/next-20170215)

[Arnd Bergmann]

On Wed, Feb 15, 2017 at 9:02 AM, Olof's autobuilder <build@xxxxxxxxx> wrote:
> Here are the build results from automated periodic testing.

>
>         Warnings:               9

It seems we're closing in on zero again, with just two build regressions
against 4.10 in linux-next. I did patches for both, and they made it into
maintainer trees but not yet into linux-next

> Warnings:
>
>       1 drivers/iio/adc/rcar-gyroadc.c:398:26: warning: 'adcmode' may be used uninitialized in this function [-Wmaybe-uninitialized]
>       1 drivers/iio/adc/rcar-gyroadc.c:426:22: warning: 'sample_width' may be used uninitialized in this function [-Wmaybe-uninitialized]
>       1 drivers/iio/adc/rcar-gyroadc.c:428:23: warning: 'channels' may be used uninitialized in this function [-Wmaybe-uninitialized]
>       1 drivers/iio/adc/rcar-gyroadc.c:429:27: warning: 'num_channels' may be used uninitialized in this function [-Wmaybe-uninitialized]

This was "iio: adc: handle unknow of_device_id data",
http://lkml.iu.edu/hypermail/linux/kernel/1702.0/02707.html

Jonathan applied it into 'fixes-togreg-post-rc1', which is probably
enough, though I'd expect that Greg would take it earlier as it
addresses a (harmless) regression in -next.

>       1 drivers/media/platform/coda/imx-vdoa.c:333:571: warning: passing argument 1 of 'platform_driver_unregister' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
>       1 drivers/media/platform/coda/imx-vdoa.c:333:625: warning: passing argument 1 of 'platform_driver_unregister' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
>       1 drivers/usb/gadget/udc/atmel_usba_udc.c:636:38: warning: 'ept_cfg' may be used uninitialized in this function [-Wmaybe-uninitialized]
>       2 drivers/media/platform/coda/imx-vdoa.c:333:181: warning: passing argument 1 of '__platform_driver_register' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]

This was "[media] coda/imx-vdoa: platform_driver should not be const",
https://patchwork.linuxtv.org/patch/39288/ Hans already marked this as
'merged', so I assume it's on its way in, but just hasn't appeared in
linux-next as of today.

I think there were a couple of other new build warnings in the
kernelci builder, I'll have another look when today's linux-next build
results come in from there.

    Arnd