linux-kernel - Re: [PATCH] powerpc/fadump: Change to use DEFINE_SHOW

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Message-ID: <20181106000700.GJ24365@umbus.hotspot.internet-for-guests.com>
Date:   Tue, 6 Nov 2018 11:07:00 +1100
From:   David Gibson <david@...son.dropbear.id.au>
To:     Yangtao Li <tiny.windzz@...il.com>
Cc:     benh@...nel.crashing.org, paulus@...ba.org, mpe@...erman.id.au,
        hbathini@...ux.ibm.com, mahesh@...ux.vnet.ibm.com,
        msuchanek@...e.de, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] powerpc/fadump: Change to use DEFINE_SHOW_ATTRIBUTE macro

On Mon, Nov 05, 2018 at 10:01:19AM -0500, Yangtao Li wrote:
> Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
> 
> Signed-off-by: Yangtao Li <tiny.windzz@...il.com>

Reviewed-by: David Gibson <david@...son.dropbear.id.au>

> ---
>  arch/powerpc/kernel/fadump.c | 12 +-----------
>  1 file changed, 1 insertion(+), 11 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
> index a711d22339ea..2df5e04b5afc 100644
> --- a/arch/powerpc/kernel/fadump.c
> +++ b/arch/powerpc/kernel/fadump.c
> @@ -1531,17 +1531,7 @@ static struct kobj_attribute fadump_register_attr = __ATTR(fadump_registered,
>  						0644, fadump_register_show,
>  						fadump_register_store);
>  
> -static int fadump_region_open(struct inode *inode, struct file *file)
> -{
> -	return single_open(file, fadump_region_show, inode->i_private);
> -}
> -
> -static const struct file_operations fadump_region_fops = {
> -	.open    = fadump_region_open,
> -	.read    = seq_read,
> -	.llseek  = seq_lseek,
> -	.release = single_release,
> -};
> +DEFINE_SHOW_ATTRIBUTE(fadump_region);
>  
>  static void fadump_init_files(void)
>  {

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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