Re: linux-next: build failures after merge of the staging tree

[Greg KH]

On Mon, Jan 04, 2021 at 09:27:01AM +0100, Geert Uytterhoeven wrote:
> On Mon, Jan 4, 2021 at 6:12 AM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> > After merging the staging tree, today's linux-next build (arm
> > multi_v7_defconfig) failed like this:
> >
> > In file included from include/linux/printk.h:6,
> >                  from include/linux/kernel.h:16,
> >                  from drivers/staging/board/kzm9d.c:4:
> > drivers/staging/board/kzm9d.c:28:17: error: initialization of 'initcall_t' {aka 'int (*)(void)'} from incompatible pointer type 'void (*)(void)' [-Werror=incompatible-pointer-types]
> >    28 | device_initcall(kzm9d_init);
> >       |                 ^~~~~~~~~~
> > include/linux/init.h:197:50: note: in definition of macro '___define_initcall'
> >   197 |   __attribute__((__section__(#__sec ".init"))) = fn;
> >       |                                                  ^~
> > include/linux/init.h:229:30: note: in expansion of macro '__define_initcall'
> >   229 | #define device_initcall(fn)  __define_initcall(fn, 6)
> >       |                              ^~~~~~~~~~~~~~~~~
> > drivers/staging/board/kzm9d.c:28:1: note: in expansion of macro 'device_initcall'
> >    28 | device_initcall(kzm9d_init);
> >       | ^~~~~~~~~~~~~~~
> > cc1: some warnings being treated as errors
> > In file included from include/linux/printk.h:6,
> >                  from include/linux/kernel.h:16,
> >                  from include/asm-generic/bug.h:20,
> >                  from arch/arm/include/asm/bug.h:60,
> >                  from include/linux/bug.h:5,
> >                  from include/linux/thread_info.h:12,
> >                  from include/asm-generic/current.h:5,
> >                  from ./arch/arm/include/generated/asm/current.h:1,
> >                  from include/linux/sched.h:12,
> >                  from include/linux/ratelimit.h:6,
> >                  from include/linux/dev_printk.h:16,
> >                  from include/linux/device.h:15,
> >                  from include/linux/dma-mapping.h:7,
> >                  from drivers/staging/board/armadillo800eva.c:12:
> > drivers/staging/board/armadillo800eva.c:90:17: error: initialization of 'initcall_t' {aka 'int (*)(void)'} from incompatible pointer type 'void (*)(void)' [-Werror=incompatible-pointer-types]
> >    90 | device_initcall(armadillo800eva_init);
> >       |                 ^~~~~~~~~~~~~~~~~~~~
> > include/linux/init.h:197:50: note: in definition of macro '___define_initcall'
> >   197 |   __attribute__((__section__(#__sec ".init"))) = fn;
> >       |                                                  ^~
> > include/linux/init.h:229:30: note: in expansion of macro '__define_initcall'
> >   229 | #define device_initcall(fn)  __define_initcall(fn, 6)
> >       |                              ^~~~~~~~~~~~~~~~~
> > drivers/staging/board/armadillo800eva.c:90:1: note: in expansion of macro 'device_initcall'
> >    90 | device_initcall(armadillo800eva_init);
> >       | ^~~~~~~~~~~~~~~
> >
> > Caused by commit
> >
> >   850c35bb28ec ("staging: board: Remove macro board_staging")
> >
> > I have used the staging tree from next-20201223 for today.
> 
> Note that a similar patch was (IMHO rightfully) rejected 3 years ago:
> https://lore.kernel.org/lkml/20170220175506.GA30142@xxxxxxxxx/
> 
> So please drop it. Thanks!

Now reverted, thanks.

greg k-h