linux-kernel - Re: [PATCH 2/3] ia64: remove unneeded header includes from <asm/mca.h>

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Date:   Sat, 29 Aug 2020 11:20:57 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Masahiro Yamada <masahiroy@...nel.org>,
        Tony Luck <tony.luck@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>, linux-ia64@...r.kernel.org
Cc:     linux-kbuild@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Dmitry Safonov <0x7f454c46@...il.com>,
        afzal mohammed <afzal.mohd.ma@...il.com>,
        linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] ia64: remove unneeded header includes from
 <asm/mca.h>

On 8/28/20 10:15 PM, Masahiro Yamada wrote:
> <asm/mca.h> includes too many unneeded headers.
> 
> This commit cuts off a lot of header includes.
> 
> What we need to include are:
> 
>  - <linux/percpu.h> for DECLARE_PER_CPU(u64, ia64_mca_pal_base)
>  - <linux/threads.h> for NR_CPUS
>  - <linux/types.h> for u8, u64, size_t, etc.
>  - <asm/ptrace.h> for KERNEL_STACK_SIZE
> 
> The other header includes are actually unneeded.
> 
> <asm/mca.h> previously included 436 headers, and now it includes
> only 138. I confirmed <asm/mca.h> is still self-contained.

Nice!

> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>

Reviewed-by: Randy Dunlap <rdunlap@...radead.org>

> ---
> 
>  arch/ia64/include/asm/mca.h | 9 +++------
>  arch/ia64/kernel/efi.c      | 1 +
>  arch/ia64/kernel/mca.c      | 1 +
>  3 files changed, 5 insertions(+), 6 deletions(-)
> 


thanks.
-- 
~Randy