* Baoquan He <bhe@xxxxxxxxxx> wrote:
> On 03/24/24 at 05:06am, Ingo Molnar wrote:
> >
> > * Baoquan He <bhe@xxxxxxxxxx> wrote:
> >
> ......snip
> > > ---
> > > arch/x86/include/asm/crash_reserve.h | 2 ++
> > > kernel/crash_reserve.c | 7 +++++++
> > > 2 files changed, 9 insertions(+)
> > >
> > > diff --git a/arch/x86/include/asm/crash_reserve.h b/arch/x86/include/asm/crash_reserve.h
> > > index 152239f95541..4681a543eba3 100644
> > > --- a/arch/x86/include/asm/crash_reserve.h
> > > +++ b/arch/x86/include/asm/crash_reserve.h
> > > @@ -39,4 +39,6 @@ static inline unsigned long crash_low_size_default(void)
> > > #endif
> > > }
> > >
> > > +# define HAVE_ARCH_ADD_CRASH_RES_TO_IOMEM_EARLY
> > > +
> >
> > Any reason for that stray space?
>
> No clear reason. I saw stray space was added for macro definning when my
> below patch was merged, not sure if this is preferred.
No, it's not preferred - and I don't see any stray spaces added in the
code added by:
> commit 85fcde402db1 ("kexec: split crashkernel reservation code out from crash_core.c")
Anyway, please just remove it.
> And there are a lot of "# define " when searching with 'git grep "#
> define " arch/x86/include/'.
The overwhelming majority of those are not standalone defines like
yours, but nested/conditional defines where the space is justified:
#ifdef CONFIG_X86_32
# define MAX_IO_APICS 64
# define MAX_LOCAL_APIC 256
#else
# define MAX_IO_APICS 128
# define MAX_LOCAL_APIC 32768
#endif
Thanks,
Ingo
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