linux-kernel - Re: [PATCH 50/50] Kill sched.h dependency on rcupdate.h

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Date: Tue, 2 Jan 2024 12:39:23 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Kent Overstreet <kent.overstreet@...ux.dev>
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org, 
	linux-fsdevel@...r.kernel.org, tglx@...utronix.de, x86@...nel.org, 
	tj@...nel.org, peterz@...radead.org, mathieu.desnoyers@...icios.com, 
	paulmck@...nel.org, keescook@...omium.org, dave.hansen@...ux.intel.com, 
	mingo@...hat.com, will@...nel.org, longman@...hat.com, boqun.feng@...il.com, 
	brauner@...nel.org
Subject: Re: [PATCH 50/50] Kill sched.h dependency on rcupdate.h

Hi Kent,

On Wed, Dec 20, 2023 at 10:40 PM Kent Overstreet
<kent.overstreet@...ux.dev> wrote:
> On Wed, Dec 20, 2023 at 12:59:44PM +0100, Geert Uytterhoeven wrote:
> > On Sat, Dec 16, 2023 at 4:39 AM Kent Overstreet
> > <kent.overstreet@...ux.dev> wrote:
> > > by moving cond_resched_rcu() to rcupdate.h, we can kill another big
> > > sched.h dependency.
> > >
> > > Signed-off-by: Kent Overstreet <kent.overstreet@...ux.dev>
> >
> > Thanks for your patch, which is now commit dc00f26faea81dc0 ("Kill
> > sched.h dependency on rcupdate.h") in next-20231220.
> >
> > Reported-by: noreply@...erman.id.au
> >
> > $ make ARCH=m68k defconfig arch/m68k/kernel/asm-offsets.i
> > *** Default configuration is based on 'multi_defconfig'
> > #
> > # No change to .config
> > #
> >   UPD     include/config/kernel.release
> >   UPD     include/generated/utsrelease.h
> >   CC      arch/m68k/kernel/asm-offsets.s
> > In file included from ./include/asm-generic/bug.h:7,
> >                  from ./arch/m68k/include/asm/bug.h:32,
> >                  from ./include/linux/bug.h:5,
> >                  from ./include/linux/thread_info.h:13,
> >                  from ./arch/m68k/include/asm/processor.h:11,
> >                  from ./include/linux/sched.h:13,
> >                  from arch/m68k/kernel/asm-offsets.c:15:
> > ./arch/m68k/include/asm/processor.h: In function ‘set_fc’:
> > ./arch/m68k/include/asm/processor.h:91:15: error: implicit declaration
> > of function ‘in_interrupt’ [-Werror=implicit-function-declaration]
> >    91 |  WARN_ON_ONCE(in_interrupt());
> >       |               ^~~~~~~~~~~~
> > ./include/linux/once_lite.h:28:27: note: in definition of macro
> > ‘DO_ONCE_LITE_IF’
> >    28 |   bool __ret_do_once = !!(condition);   \
> >       |                           ^~~~~~~~~
> > ./arch/m68k/include/asm/processor.h:91:2: note: in expansion of macro
> > ‘WARN_ON_ONCE’
> >    91 |  WARN_ON_ONCE(in_interrupt());
> >       |  ^~~~~~~~~~~~
> > cc1: some warnings being treated as errors
> > make[3]: *** [scripts/Makefile.build:116:
> > arch/m68k/kernel/asm-offsets.s] Error 1
> > make[2]: *** [Makefile:1191: prepare0] Error 2
> > make[1]: *** [Makefile:350: __build_one_by_one] Error 2
> > make: *** [Makefile:234: __sub-make] Error 2
>
> Applying this fix:
>
> commit 0d7bdfe9726b275c7e9398047763a144c790b575
> Author: Kent Overstreet <kent.overstreet@...ux.dev>
> Date:   Wed Dec 20 16:39:21 2023 -0500
>
>     m68k: Fix missing include
>
>     Signed-off-by: Kent Overstreet <kent.overstreet@...ux.dev>

LGTM.
Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

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