2013-05-14 15:29:21

by Larry Finger

Subject: Kernel 3.10-rc1 build warning on 32-bit ppc associated with commit 3925f46

Hi,

When building 3.10-rc1 on a PowerBook G4, I get the following warning:

cc1: warnings being treated as errors
arch/powerpc/perf/core-book3s.c: In function ?power_pmu_bhrb_read?:
arch/powerpc/perf/core-book3s.c:1479: error: integer constant is too large for
?long? type
make[2]: *** [arch/powerpc/perf/core-book3s.o] Error 1
make[1]: *** [arch/powerpc/perf] Error 2
make[1]: *** Waiting for unfinished jobs....
LD arch/powerpc/platforms/powermac/built-in.o
LD arch/powerpc/platforms/built-in.o
make[1]: Leaving directory `/home/finger/wireless-testing'
make: *** [debian/stamp/build/kernel] Error 2

The code in question came from commit 3925f46 entitled "powerpc/perf: Enable
branch stack sampling framework". The gcc version is 4.4.5 running with a Mint 9
distribution.

I have disabled the "-Werror" switch so that the build can continue. That
Kconfig question about disabling WERROR is a bit confusing with its double
negative construction.

Thanks,

Larry

2013-05-14 23:34:09

by Benjamin Herrenschmidt

Subject: Re: Kernel 3.10-rc1 build warning on 32-bit ppc associated with commit 3925f46

On Tue, 2013-05-14 at 10:29 -0500, Larry Finger wrote:
> Hi,
>
> When building 3.10-rc1 on a PowerBook G4, I get the following warning:

Thanks. Should be fixed now, let me know if it's not.

Cheers,
Ben.

> cc1: warnings being treated as errors
> arch/powerpc/perf/core-book3s.c: In function ‘power_pmu_bhrb_read’:
> arch/powerpc/perf/core-book3s.c:1479: error: integer constant is too large for
> ‘long’ type
> make[2]: *** [arch/powerpc/perf/core-book3s.o] Error 1
> make[1]: *** [arch/powerpc/perf] Error 2
> make[1]: *** Waiting for unfinished jobs....
> LD arch/powerpc/platforms/powermac/built-in.o
> LD arch/powerpc/platforms/built-in.o
> make[1]: Leaving directory `/home/finger/wireless-testing'
> make: *** [debian/stamp/build/kernel] Error 2
>
> The code in question came from commit 3925f46 entitled "powerpc/perf: Enable
> branch stack sampling framework". The gcc version is 4.4.5 running with a Mint 9
> distribution.
>
> I have disabled the "-Werror" switch so that the build can continue. That
> Kconfig question about disabling WERROR is a bit confusing with its double
> negative construction.
>
> Thanks,
>
> Larry
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2013-05-15 03:07:59

by Larry Finger

Subject: Re: Kernel 3.10-rc1 build warning on 32-bit ppc associated with commit 3925f46

On 05/14/2013 06:33 PM, Benjamin Herrenschmidt wrote:
> On Tue, 2013-05-14 at 10:29 -0500, Larry Finger wrote:
>> Hi,
>>
>> When building 3.10-rc1 on a PowerBook G4, I get the following warning:
>
> Thanks. Should be fixed now, let me know if it's not.

It is now fixed. Thanks for a quick response.

Larry