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Date:   Wed, 14 Mar 2018 19:39:57 +1100
From:   Stephen Rothwell <sfr@canb.auug.org.au>
To:     Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc:     linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
        linux-next <linux-next@vger.kernel.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        Kees Cook <keescook@chromium.org>, mpe <mpe@ellerman.id.au>,
        sachinp <sachinp@linux.vnet.ibm.com>
Subject: Re: [linux-next][bisected c7c133f3][gcc 4.8.5] build fail with
 error: first argument to =?UTF-8?B?4oCYX19idWlsdGluX2Nob29zZV9leHBy4oCZ?=
 not a constant
Message-ID: <20180314193957.5f835d33@canb.auug.org.au>
In-Reply-To: <1521016194.31953.9.camel@abdul.in.ibm.com>
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Hi Abdul,

On Wed, 14 Mar 2018 13:59:54 +0530 Abdul Haleem <abdhalee@linux.vnet.ibm.co=
m> wrote:
>
> Today's next kernel fails to build with gcc 4.8.5 on powerpc machine.

Thanks for the report.  Just for the future, please include  the
next-XXXXXXXX tag when making reports about linux-next.

> ./include/linux/jiffies.h: In function =E2=80=98jiffies_delta_to_clock_t=
=E2=80=99:
> ./include/linux/kernel.h:855:2: error: first argument to =E2=80=98__built=
in_choose_expr=E2=80=99 not a constant
>   __builtin_choose_expr(__builtin_constant_p(x) &&  \
>   ^
> ./include/linux/kernel.h:867:19: note: in expansion of macro =E2=80=98__m=
ax=E2=80=99
>  #define max(x, y) __max(typeof(x), typeof(y), x, y)
>=20
> Machine Type: Power8 Baremetal
> gcc: 4.8.5
>=20
>=20
> Builds fine when below patch is reverted
> c7c133f3 kernel.h: skip single-eval logic on literals in min()/max()

Those patches have been removed from today's linux-next (next-20180314).

--=20
Cheers,
Stephen Rothwell

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