Re: Build regressions/improvements in v5.3-rc5

[Aaro Koskinen]

Hi,

On Mon, Aug 19, 2019 at 11:07:49AM +0200, Geert Uytterhoeven wrote:
> On Mon, Aug 19, 2019 at 10:47 AM Geert Uytterhoeven
> <geert@xxxxxxxxxxxxxx> wrote:
> > JFYI, when comparing v5.3-rc5[1] to v5.3-rc4[3], the summaries are:
> >   - build errors: +7/-0
> 
>   + /kisskb/src/include/asm-generic/5level-fixup.h: error: unknown
> type name 'pgd_t'; did you mean 'pid_t'?:  => 14:18
>   + /kisskb/src/include/asm-generic/pgtable.h: error: implicit
> declaration of function 'p4d_bad'; did you mean 'pgd_bad'?
> [-Werror=implicit-function-declaration]:  => 580:15
>   + /kisskb/src/include/asm-generic/pgtable.h: error: implicit
> declaration of function 'p4d_bad'; did you mean 'pud_bad'?
> [-Werror=implicit-function-declaration]:  => 580:15
>   + /kisskb/src/include/asm-generic/pgtable.h: error: implicit
> declaration of function 'p4d_none'; did you mean 'pgd_none'?
> [-Werror=implicit-function-declaration]:  => 578:6
>   + /kisskb/src/include/asm-generic/pgtable.h: error: implicit
> declaration of function 'p4d_none'; did you mean 'pud_none'?
> [-Werror=implicit-function-declaration]:  => 578:6
> 
> parisc-defconfig

This commit broke PA-RISC build:

0cfaee2af3a04c0be5f056cebe5f804dedc59a43 is the first bad commit
commit 0cfaee2af3a04c0be5f056cebe5f804dedc59a43
Author: Qian Cai <cai@xxxxxx>
Date:   Tue Aug 13 15:37:47 2019 -0700  

    include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used

A.