Re: Build regressions/improvements in v4.3-rc7

From: Geert Uytterhoeven
Date: Sun Oct 25 2015 - 06:39:21 EST


On Sun, Oct 25, 2015 at 11:18 AM, Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
> On Sun, Oct 25, 2015 at 11:12 AM, Geert Uytterhoeven
> <geert@xxxxxxxxxxxxxx> wrote:
>> JFYI, when comparing v4.3-rc7[1] to v4.3-rc6[3], the summaries are:
>> - build errors: +12/-4

> + /home/kisskb/slave/src/arch/arm/kernel/patch.c: error: 'L_PTE_DIRTY' undeclared (first use in this function): => 39:2
> + /home/kisskb/slave/src/arch/arm/kernel/patch.c: error: 'L_PTE_MT_WRITEBACK' undeclared (first use in this function): => 39:2
> + /home/kisskb/slave/src/arch/arm/kernel/patch.c: error: 'L_PTE_PRESENT' undeclared (first use in this function): => 39:2
> + /home/kisskb/slave/src/arch/arm/kernel/patch.c: error: 'L_PTE_XN' undeclared (first use in this function): => 39:2
> + /home/kisskb/slave/src/arch/arm/kernel/patch.c: error: 'L_PTE_YOUNG' undeclared (first use in this function): => 39:2

Caused by:

commit ab0615e2d6fb074764a3e4d05f1326fa2fdb4627
Author: Rabin Vincent <rabin@xxxxxx>
Date: Thu Apr 24 23:28:57 2014 +0200

arm: use fixmap for text patching when text is RO

Should the call to set_fixmap() in arch/arm/kernel/patch.c
just be protected by #ifdef CONFIG_MMU?

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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