linux-kernel - Re: [PATCH 1/3] ia64: do not typedef struct pal_min_state_area

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Message-ID: <4cd59328-03b2-8da1-31fd-750c18a3f2bf@infradead.org>
Date:   Sat, 29 Aug 2020 11:21:15 -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>,
        Arnd Bergmann <arnd@...db.de>,
        Dmitry Safonov <0x7f454c46@...il.com>,
        afzal mohammed <afzal.mohd.ma@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] ia64: do not typedef struct pal_min_state_area_s

On 8/28/20 10:15 PM, Masahiro Yamada wrote:
> Documentation/process/coding-style.rst says:
> 
>   Please don't use things like ``vps_t``.
>   It's a **mistake** to use typedef for structures and pointers.
> 
> This commit converts as follows:
> 
>   struct pal_min_state_area_s  ->  struct pal_min_state_area
>          pal_min_state_area_t  ->  struct pal_min_state_area
> 
> My main motivation for this is to slim down the include directives
> of <asm/mca.h> in the next commit.
> 
> Currently, <asm/mca.h> is required to include <asm/pal.h> directly
> or indirectly due to (pal_min_state_area_t *). Otherwise, it would
> have no idea what pal_min_state_area_t is.
> 
> Replacing it with (struct pal_min_state_area *) will relax the header
> dependency since it is enough to tell it is a pointer to a structure,
> and to resolve the size of struct pal_min_state_area. It will make
> <asm/mca.h> independent of <asm/pal.h>.
> 
> <asm/pal.h> typedef's a lot of structures, but it is trivial to
> convert the others in the same way.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>

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

> ---
> 
>  arch/ia64/include/asm/mca.h    |  2 +-
>  arch/ia64/include/asm/pal.h    |  4 ++--
>  arch/ia64/include/asm/sal.h    |  2 +-
>  arch/ia64/kernel/asm-offsets.c | 18 +++++++++---------
>  arch/ia64/kernel/mca.c         |  4 ++--
>  arch/ia64/kernel/mca_drv.c     |  2 +-
>  6 files changed, 16 insertions(+), 16 deletions(-)
> 


thanks.
-- 
~Randy