Re: [PATCH v2 1/7] powerpc/eeh: Use debugfs_create_u32 for eeh_max_freezes

[Sam Bobroff <sbobroff@linux.ibm.com>]

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On Fri, Feb 15, 2019 at 11:48:11AM +1100, Oliver O'Halloran wrote:
> There's no need to the custom getter/setter functions so we should remove
> them in favour of using the generic one. While we're here, change the type
> of eeh_max_freeze to u32 and print the value in decimal rather than
> hex because printing it in hex makes no sense.
> 
> Signed-off-by: Oliver O'Halloran <oohall@gmail.com>

Reviewed-by: Sam Bobroff <sbobroff@linux.ibm.com>

> ---
> v2: Replaced uint32_t with u32.
> ---
>  arch/powerpc/include/asm/eeh.h |  2 +-
>  arch/powerpc/kernel/eeh.c      | 21 +++------------------
>  2 files changed, 4 insertions(+), 19 deletions(-)
> 
> diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
> index 8b596d096ebe..2daecd677855 100644
> --- a/arch/powerpc/include/asm/eeh.h
> +++ b/arch/powerpc/include/asm/eeh.h
> @@ -219,7 +219,7 @@ struct eeh_ops {
>  };
>  
>  extern int eeh_subsystem_flags;
> -extern int eeh_max_freezes;
> +extern u32 eeh_max_freezes;
>  extern struct eeh_ops *eeh_ops;
>  extern raw_spinlock_t confirm_error_lock;
>  
> diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
> index ae05203eb4de..d021f5abeec5 100644
> --- a/arch/powerpc/kernel/eeh.c
> +++ b/arch/powerpc/kernel/eeh.c
> @@ -109,7 +109,7 @@ EXPORT_SYMBOL(eeh_subsystem_flags);
>   * frozen count in last hour exceeds this limit, the PE will
>   * be forced to be offline permanently.
>   */
> -int eeh_max_freezes = 5;
> +u32 eeh_max_freezes = 5;
>  
>  /* Platform dependent EEH operations */
>  struct eeh_ops *eeh_ops = NULL;
> @@ -1796,22 +1796,8 @@ static int eeh_enable_dbgfs_get(void *data, u64 *val)
>  	return 0;
>  }
>  
> -static int eeh_freeze_dbgfs_set(void *data, u64 val)
> -{
> -	eeh_max_freezes = val;
> -	return 0;
> -}
> -
> -static int eeh_freeze_dbgfs_get(void *data, u64 *val)
> -{
> -	*val = eeh_max_freezes;
> -	return 0;
> -}
> -
>  DEFINE_DEBUGFS_ATTRIBUTE(eeh_enable_dbgfs_ops, eeh_enable_dbgfs_get,
>  			 eeh_enable_dbgfs_set, "0x%llx\n");
> -DEFINE_DEBUGFS_ATTRIBUTE(eeh_freeze_dbgfs_ops, eeh_freeze_dbgfs_get,
> -			 eeh_freeze_dbgfs_set, "0x%llx\n");
>  #endif
>  
>  static int __init eeh_init_proc(void)
> @@ -1822,9 +1808,8 @@ static int __init eeh_init_proc(void)
>  		debugfs_create_file_unsafe("eeh_enable", 0600,
>  					   powerpc_debugfs_root, NULL,
>  					   &eeh_enable_dbgfs_ops);
> -		debugfs_create_file_unsafe("eeh_max_freezes", 0600,
> -					   powerpc_debugfs_root, NULL,
> -					   &eeh_freeze_dbgfs_ops);
> +		debugfs_create_u32("eeh_max_freezes", 0600,
> +				powerpc_debugfs_root, &eeh_max_freezes);
>  #endif
>  	}
>  
> -- 
> 2.20.1
> 

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