linux-kernel - Re: [PATCH 4/4] vdso: avoid including asm/page.h

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Date: Tue, 27 Feb 2024 23:57:25 +1100
From: Michael Ellerman <mpe@...erman.id.au>
To: Christophe Leroy <christophe.leroy@...roup.eu>, Arnd Bergmann
 <arnd@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, Vincenzo Frascino
 <vincenzo.frascino@....com>, Kees Cook <keescook@...omium.org>, Anna-Maria
 Behnsen <anna-maria@...utronix.de>
Cc: Arnd Bergmann <arnd@...db.de>, Matt Turner <mattst88@...il.com>, Vineet
 Gupta <vgupta@...nel.org>, Russell King <linux@...linux.org.uk>, Catalin
 Marinas <catalin.marinas@....com>, Guo Ren <guoren@...nel.org>, Brian Cain
 <bcain@...cinc.com>, Huacai Chen <chenhuacai@...nel.org>, Geert
 Uytterhoeven <geert@...ux-m68k.org>, Michal Simek <monstr@...str.eu>,
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Subject: Re: [PATCH 4/4] vdso: avoid including asm/page.h

Christophe Leroy <christophe.leroy@...roup.eu> writes:
> Le 26/02/2024 à 17:14, Arnd Bergmann a écrit :
>> From: Arnd Bergmann <arnd@...db.de>
>> 
>> The recent change to the vdso_data_store broke building compat VDSO
>> on at least arm64 because it includes headers outside of the include/vdso/
>> namespace:
>
> I understand that powerpc64 also has an issue, see 
> https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20231221120410.2226678-1-mpe@ellerman.id.au/

Yeah, and that patch would silently conflict with this series, which is
not ideal.

I could delay merging my patch above until after this series goes in,
mine only fixes a fairly obscure build warning.

cheers