Re: Build regressions/improvements in v4.8-rc1

[Rich Felker]

On Mon, Aug 08, 2016 at 10:38:07AM +0200, Geert Uytterhoeven wrote:
> On Mon, Aug 8, 2016 at 10:32 AM, Geert Uytterhoeven
> <geert@xxxxxxxxxxxxxx> wrote:
> > Below is the list of build error/warning regressions/improvements in
> > v4.8-rc1[1] compared to v4.7[2].
> >
> > Summarized:
> >   - build errors: +8/-12
> 
> >   + /home/kisskb/slave/src/arch/arm/kernel/setup.c: error: 'SECTION_SIZE' undeclared (first use in this function):  => 1003:25
> 
> arm-randconfig
> 
> >   + error: "__ucmpdi2" [drivers/scsi/sd_mod.ko] undefined!:  => N/A
> 
> bfin/CM-BF548_defconfig
> 
> >   + error: /home/kisskb/slave/src/drivers/block/loop.c: undefined reference to `__ucmpdi2':  => .text+0x3aaee), .text+0x2ee10), .text+0x2ee1c)
> >   + error: /home/kisskb/slave/src/drivers/scsi/sd.c: undefined reference to `__ucmpdi2':  => .text+0x36cb8), .text+0x3865c)
> 
> Various blackfin
> 
> >   + error: No rule to make target arch/sh/boot/dts/.dtb.o:  => N/A
> 
> sh-allyesconfig, sh-allmodconfig

I saw this. Is there any canonical way I should fix this? The problem
is that there's no default for the DTS name, but I'm not sure there
should be a default. Getting a hard-coded DTB for a particular board
when you do allyesconfig seems like a worse UX than getting a build
failure.

Rich