Re: Build regressions/improvements in v4.1-rc1

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On Mon, Apr 27, 2015 at 11:51 AM, Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
> 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...

>   + /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

and related warnings due to lack of -Werror on
ia64-defconfig
tilegx_defconfig
m32r/m32700ut.smp_defconfig

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...

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

>   + /home/kisskb/slave/src/arch/mips/sgi-ip32/ip32-platform.c: error: 'sgio2_cmos_devinit' undeclared here (not in a function):  => 138:1
>   + /home/kisskb/slave/src/arch/mips/sgi-ip32/ip32-platform.c: error: expected identifier or '(' before '+' token:  => 133:1

mips/ip32_defconfig

>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: "arch_read_can_lock" redefined [-Werror]:  => 185:0
>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: "arch_write_can_lock" redefined [-Werror]:  => 186:0
>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: "smp_mb__after_unlock_lock" redefined [-Werror]:  => 31:0
>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: 'arch_rwlock_t' has no member named 'lock':  => 267:12, 303:4, 214:12, 295:11, 253:12, 238:25
>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: 'arch_spinlock_t' has no member named 'slock':  => 86:27, 59:13
>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: expected ')' before '(' token:  => 62:19
>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: expected identifier or '(' before 'do':  => 159:20, 139:6, 168:13, 123:20
>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: expected identifier or '(' before 'void':  => 62:19
>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: expected identifier or '(' before 'while':  => 168:13, 123:20, 139:6, 159:20
>   + /home/kisskb/slave/src/arch/powerpc/include/asm/spinlock.h: error: expected identifier or '(' before '{' token:  => 92:19

powerpc/ppc64_defconfig+UP

>   + /home/kisskb/slave/src/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c: error: implicit declaration of function 'dma_alloc_attrs' [-Werror=implicit-function-declaration]:  => 218:2
>   + /home/kisskb/slave/src/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c: error: implicit declaration of function 'dma_free_attrs' [-Werror=implicit-function-declaration]:  => 154:2

xtensa-allmodconfig
powerpc/mpc85xx_defconfig

>   + /home/kisskb/slave/src/drivers/spi/spi-bcm2835.c: error: dereferencing pointer to incomplete type:  => 356:21, 387:21
>   + /home/kisskb/slave/src/drivers/spi/spi-bcm2835.c: error: implicit declaration of function 'gpiochip_find' [-Werror=implicit-function-declaration]:  => 382:2

m68k-allmodconfig
s390-allyesconfig
s390-allmodconfig
parisc-allmodconfig
sh-allmodconfig
sh-allyesconfig
mips-allmodconfig

(fix stuck in the spi tree?)

>   + /home/kisskb/slave/src/fs/dax.c: error: implicit declaration of function 'copy_user_page' [-Werror=implicit-function-declaration]:  => 265:2

sh-randconfig

>   + /home/kisskb/slave/src/fs/hostfs/hostfs_user.c: error: 'AT_FDCWD' undeclared (first use in this function):  => 373
>   + /home/kisskb/slave/src/fs/hostfs/hostfs_user.c: error: (Each undeclared identifier is reported only once:  => 373
>   + /home/kisskb/slave/src/fs/hostfs/hostfs_user.c: error: for each function it appears in.):  => 373

um-i386/um-defconfig

>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_read16' [-Werror=implicit-function-declaration]:  => 121:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_read32' [-Werror=implicit-function-declaration]:  => 129:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_read8' [-Werror=implicit-function-declaration]:  => 113:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_write16' [-Werror=implicit-function-declaration]:  => 155:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_write32' [-Werror=implicit-function-declaration]:  => 163:2
>   + /home/kisskb/slave/src/include/asm-generic/io.h: error: implicit declaration of function 'bfin_write8' [-Werror=implicit-function-declaration]:  => 147:2

bfin/BF561-EZKIT-SMP_defconfig

>   + error: No rule to make target include/config/auto.conf:  => N/A

arm-randconfig

>   + error: initramfs.c: undefined reference to `__stack_chk_guard':  => .init.text+0x1b30)

i386-randconfig

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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