Geert Uytterhoeven [off-list ref] writes:

On Mon, Apr 27, 2015 at 11:51 AM, Geert Uytterhoeven
[off-list ref] wrote:

quoted

Below is the list of build error/warning regressions/improvements in
v4.1-rc1[1] compared to v4.0[2].

Summarized:
  - build errors: +34/-11
  - build warnings: +135/-163

As I haven't mastered kup yet, there's no verbose summary at
http://www.kernel.org/pub/linux/kernel/people/geert/linux-log/v4.1-rc1.summary.gz

Happy fixing! ;-)

Thanks to the linux-next team for providing the build service.

[1] http://kisskb.ellerman.id.au/kisskb/head/8779/ (254 out of 257 configs)
[2] http://kisskb.ellerman.id.au/kisskb/head/8710/ (254 out of 257 configs)


*** ERRORS ***

34 regressions:

The quiet days are over...

quoted

  + /home/kisskb/slave/src/arch/mips/cavium-octeon/smp.c: error: passing argument 2 of 'cpumask_clear_cpu' discards 'volatile' qualifier from pointer target type [-Werror]:  => 242:2
  + /home/kisskb/slave/src/arch/mips/kernel/process.c: error: passing argument 2 of 'cpumask_test_cpu' discards 'volatile' qualifier from pointer target type [-Werror]:  => 52:2
  + /home/kisskb/slave/src/arch/mips/kernel/smp.c: error: passing argument 2 of 'cpumask_set_cpu' discards 'volatile' qualifier from pointer target type [-Werror]:  => 149:2, 211:2
  + /home/kisskb/slave/src/arch/mips/kernel/smp.c: error: passing argument 2 of 'cpumask_test_cpu' discards 'volatile' qualifier from pointer target type [-Werror]:  => 221:2

mips/bigsur_defconfig
mips/malta_defconfig
mips/cavium_octeon_defconfig
mips/ip27_defconfig

Already fixed in other thread...

and related warnings due to lack of -Werror on
ia64-defconfig

That fix is fairly obvious, I'll post separately.

tilegx_defconfig

Can't see that one with a simple grep: can you post warning?

m32r/m32700ut.smp_defconfig

Will post fix for this too.

cpumask also gives fishy warnings:

    lib/cpumask.c:167:25: warning: the address of 'cpu_all_bits' will
always evaluate as 'true' [-Waddress]

on sparc (e.g. sparc64/sparc64-allmodconfig) and powerpc (e.g.
powerpc/ppc64_defconfig), which seem to have been reported 6 months
ago...

Hmm, this is cpumask_of_node?  That's... Oh my, that requires
a separate post.

Can we throw some bitcoins at the cpumasks? ;-)

I think I should be throwing bitcoins at you, instead!

Thanks,
Rusty.