linux-kernel - Re: [PATCH] EDAC/mc_sysfs: add missing newlines when printing 'max(dimm)

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Message-ID: <20200910110012.GD8357@zn.tnic>
Date:   Thu, 10 Sep 2020 13:00:12 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Xiongfeng Wang <wangxiongfeng2@...wei.com>
Cc:     mchehab@...nel.org, tony.luck@...el.com,
        linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] EDAC/mc_sysfs: add missing newlines when printing
 'max(dimm)_location'

On Fri, Sep 04, 2020 at 04:19:23PM +0800, Xiongfeng Wang wrote:
> When I cat 'max_location' and 'dimm_location' by sysfs, it displays as
> follows. It's better to add a newline for easy reading.
> 
> [root@...alhost /]# cat /sys/devices/system/edac/mc/mc0/max_location
> memory 3 [root@...alhost /]# cat /sys/devices/system/edac/mc/mc0/dimm0/dimm_location
> memory 0 [root@...alhost /]#

Please use this commit message for your next version:

EDAC/mc_sysfs: Add missing newlines when printing {max,dimm}_location

Reading those sysfs entries gives:

  [root@...alhost /]# cat /sys/devices/system/edac/mc/mc0/max_location
  memory 3 [root@...alhost /]# cat /sys/devices/system/edac/mc/mc0/dimm0/dimm_location
  memory 0 [root@...alhost /]#

Add newlines after the value it prints for better readability.

> @@ -821,6 +825,7 @@ static ssize_t mci_max_location_show(struct device *dev,
>  			     edac_layer_name[mci->layers[i].type],
>  			     mci->layers[i].size - 1);
>  	}
> +	p += sprintf(p, "\n");

No size checking here?

-- 
Regards/Gruss,
    Boris.

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