linux-kernel - Re: [PATCH -next] RAS/CEC: Convert to DEFINE_SHOW

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Date:   Sat, 19 Sep 2020 09:21:46 +0800
From:   miaoqinglang <miaoqinglang@...wei.com>
To:     Borislav Petkov <bp@...en8.de>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Tony Luck <tony.luck@...el.com>, <linux-edac@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] RAS/CEC: Convert to DEFINE_SHOW_ATTRIBUTE



在 2020/8/17 18:31, Borislav Petkov 写道:
> On Thu, Jul 16, 2020 at 04:58:34PM +0800, Qinglang Miao wrote:
>> From: Yongqiang Liu <liuyongqiang13@...wei.com>
>>
>> Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
>>
>> Signed-off-by: Yongqiang Liu <liuyongqiang13@...wei.com>
>> ---
>>   drivers/ras/cec.c | 17 +++--------------
>>   1 file changed, 3 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c
>> index a992bb426..ed47b59e4 100644
>> --- a/drivers/ras/cec.c
>> +++ b/drivers/ras/cec.c
>> @@ -435,7 +435,7 @@ DEFINE_DEBUGFS_ATTRIBUTE(action_threshold_ops, u64_get, action_threshold_set, "%
>>   
>>   static const char * const bins[] = { "00", "01", "10", "11" };
>>   
>> -static int array_dump(struct seq_file *m, void *v)
>> +static int array_show(struct seq_file *m, void *v)
>>   {
>>   	struct ce_array *ca = &ce_arr;
>>   	int i;
>> @@ -467,18 +467,7 @@ static int array_dump(struct seq_file *m, void *v)
>>   	return 0;
>>   }
>>   
>> -static int array_open(struct inode *inode, struct file *filp)
>> -{
>> -	return single_open(filp, array_dump, NULL);
>> -}
>> -
>> -static const struct file_operations array_ops = {
>> -	.owner	 = THIS_MODULE,
>> -	.open	 = array_open,
>> -	.read_iter	 = seq_read_iter,
> 
> $ test-apply.sh /tmp/01-ras-cec-convert_to_define_show_attribute.patch
> checking file drivers/ras/cec.c
> Hunk #2 FAILED at 467.
> 1 out of 3 hunks FAILED
> Apply? (y/n) n
> 
> Where did this .read_iter come from?
> 
Hi Borislav,

.read_iter come from <4d4901c6d7> which has been reverted in Linux-next.

So I resent a new patch against linux-next(20200917), and it can
be applied to mainline cleanly now.

Thanks.