On Monday 23 February 2015 09:45:43 Geert Uytterhoeven wrote:

On Mon, Feb 23, 2015 at 9:33 AM, Geert Uytterhoeven
[off-list ref] wrote:

quoted

Below is the list of build error/warning regressions/improvements in
v4.0-rc1[1] compared to v3.19[2].

Summarized:
  - build errors: +11/-10

quoted

[1] http://kisskb.ellerman.id.au/kisskb/head/8494/ (256 out of 257 configs)
[2] http://kisskb.ellerman.id.au/kisskb/head/8427/ (255 out of 257 configs)


*** ERRORS ***

11 regressions:
  + /home/kisskb/slave/src/arch/arm/include/asm/atomic.h: error: #error SMP not supported on pre-ARMv6 CPUs:  => 137:2
  + /home/kisskb/slave/src/arch/arm/include/asm/cmpxchg.h: error: #error "SMP is not supported on this platform":  => 114:2

arm-randconfig

SMP does depend on CPU_V6K || CPU_V7 and on HAVE_SMP... strange...

V6/V7 and  the earlier V4/V5 are normally mutually exclusive, but we sometimes
screw up the dependencies for some platform, in which case you can end up
with a config that includes both and gives the above error. I'll have a look.

I thought I'd fixed all the bugs we introduced in the merge window in yesterday's
fixes branch.

There is one known problem for mach-realview in this area, for which
I have a fix.

quoted

  + /home/kisskb/slave/src/fs/dax.c: error: implicit declaration of function 'copy_user_page' [-Werror=implicit-function-declaration]:  => 266:2

DAX support was merged with 'depends on !(ARM || MIPS || SPARC)', so I don't
see how this could happen.

sh-randconfig

quoted

  + /home/kisskb/slave/src/sound/soc/codecs/max98357a.c: error: implicit declaration of function 'devm_gpiod_get' [-Werror=implicit-function-declaration]:  => 55:2
  + /home/kisskb/slave/src/sound/soc/codecs/max98357a.c: error: implicit declaration of function 'gpiod_direction_output' [-Werror=implicit-function-declaration]:  => 61:2
  + /home/kisskb/slave/src/sound/soc/codecs/max98357a.c: error: implicit declaration of function 'gpiod_set_value' [-Werror=implicit-function-declaration]:  => 30:3

Something wrong in arch/sh/include/asm/gpio.h? the codec is only
selectable when gpiolib is enabled, but the consumer.h header
apparently does not get included here.

s390-allyesconfig
s390-allmodconfig
parisc-allmodconfig
sh-allmodconfig
sh-allyesconfig
cris-allyesconfig
cris-allmodconfig
mips-allmodconfig

quoted

  + error: asm9260_timer.c: undefined reference to `of_io_request_and_map':  => .init.text+0x4014), .init.text+0x5c84)

asm9260 is arm-specific, we probably need to refine the dependencies here
to ensure that OF_ADDRESS is set. Need to think about what the best set of
dependencies is.

	Arnd