linux-kernel - Re: Build regressions/improvements in v6.2-rc8

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Date:   Tue, 14 Feb 2023 11:38:26 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-kernel@...r.kernel.org
Cc:     linuxppc-dev@...ts.ozlabs.org
Subject: Re: Build regressions/improvements in v6.2-rc8

Geert Uytterhoeven <geert@...ux-m68k.org> writes:
> On Mon, 13 Feb 2023, Geert Uytterhoeven wrote:
>> JFYI, when comparing v6.2-rc8[1] to v6.2-rc7[3], the summaries are:
>>  - build errors: +11/-1
>
>    + {standard input}: Error: unrecognized opcode: `dcbfl':  => 5736, 4743, 4327, 4476, 4447, 5067, 4602, 5212, 5224, 4298, 5594, 4315, 5050, 5195, 4464, 5079
>    + {standard input}: Error: unrecognized opcode: `dlmzb.':  => 2848, 18800, 2842, 2383, 106, 2377, 3327, 112
>    + {standard input}: Error: unrecognized opcode: `iccci':  => 204, 163, 510
>    + {standard input}: Error: unrecognized opcode: `lbarx':  => 570, 196
>    + {standard input}: Error: unrecognized opcode: `mbar':  => 887, 558, 1172, 539, 516, 837, 1457, 1125, 815, 7523, 1100, 1385, 368, 703, 662, 468, 441, 1410
>    + {standard input}: Error: unrecognized opcode: `mfdcr':  => 3589, 4358, 3565, 3493, 3614, 128, 3445, 276, 3518, 3541, 3469, 4413
>    + {standard input}: Error: unrecognized opcode: `mtdcr':  => 265, 4402, 4430, 4375, 4388, 4347, 117, 4443
>    + {standard input}: Error: unrecognized opcode: `stbcx.':  => 196, 570
>    + {standard input}: Error: unrecognized opcode: `tlbwe':  => 475, 476, 477
>
> powerpc-gcc11/ppc64_book3e_allmodconfig
> powerpc-gcc11/powerpc-allmodconfig
> powerpc-gcc11/corenet64_smp_defconfig
> powerpc-gcc11/powerpc-allyesconfig
> powerpc-gcc11/44x/fsp2_defconfig

That was me updating the GCC 11 toolchain from 11.1 to 11.3 (and more
importantly binutils 2.36 to 2.38), so not an actual regression.

I've backed that change out for now for powerpc builds.

cheers