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SubjectRe: mmu.c:undefined reference to `patch__hash_page_A0'
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Le 18/04/2021 à 02:02, Randy Dunlap a écrit :
> HI--
>
> I no longer see this build error.

Fixed by https://github.com/torvalds/linux/commit/acdad8fb4a1574323db88f98a38b630691574e16

> However:
>
> On 2/27/21 2:24 AM, kernel test robot wrote:
>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head: 3fb6d0e00efc958d01c2f109c8453033a2d96796
>> commit: 259149cf7c3c6195e6199e045ca988c31d081cab powerpc/32s: Only build hash code when CONFIG_PPC_BOOK3S_604 is selected
>> date: 4 weeks ago
>> config: powerpc64-randconfig-r013-20210227 (attached as .config)
>
> ktr/lkp, this is a PPC32 .config file that is attached, not PPC64.
>
> Also:
>
>> compiler: powerpc-linux-gcc (GCC) 9.3.0

...

>
> I do see this build error:
>
> powerpc-linux-ld: arch/powerpc/boot/wrapper.a(decompress.o): in function `partial_decompress':
> decompress.c:(.text+0x1f0): undefined reference to `__decompress'
>
> when either
> CONFIG_KERNEL_LZO=y
> or
> CONFIG_KERNEL_LZMA=y
>
> but the build succeeds when either
> CONFIG_KERNEL_GZIP=y
> or
> CONFIG_KERNEL_XZ=y
>
> I guess that is due to arch/powerpc/boot/decompress.c doing this:
>
> #ifdef CONFIG_KERNEL_GZIP
> # include "decompress_inflate.c"
> #endif
>
> #ifdef CONFIG_KERNEL_XZ
> # include "xz_config.h"
> # include "../../../lib/decompress_unxz.c"
> #endif
>
>
> It would be nice to require one of KERNEL_GZIP or KERNEL_XZ
> to be set/enabled (maybe unless a uImage is being built?).


Can you test by
https://patchwork.ozlabs.org/project/linuxppc-dev/patch/a74fce4dfc9fa32da6ce3470bbedcecf795de1ec.1591189069.git.christophe.leroy@csgroup.eu/
?

Thanks
Christophe

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