linux-kernel - Re: [PATCH 4/9] nvmem: sprd: Fix an error message

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Message-ID: <2e81821d-5b4d-925d-9d15-7a7ebd6d649d@linaro.org>
Date:   Fri, 11 Jun 2021 11:17:19 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Chunyan Zhang <zhang.lyra@...il.com>
Subject: Re: [PATCH 4/9] nvmem: sprd: Fix an error message



On 11/06/2021 10:48, Greg KH wrote:
> On Fri, Jun 11, 2021 at 11:45:25AM +0200, Greg KH wrote:
>> On Fri, Jun 11, 2021 at 11:17:50AM +0200, Greg KH wrote:
>>> On Fri, Jun 11, 2021 at 10:05:40AM +0100, Srinivas Kandagatla wrote:
>>>>
>>>>
>>>> On 11/06/2021 09:56, Greg KH wrote:
>>>>> On Fri, Jun 11, 2021 at 09:33:43AM +0100, Srinivas Kandagatla wrote:
>>>>>> From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
>>>>>>
>>>>>> 'ret' is known to be 0 here.
>>>>>> The expected error status is stored in 'status', so use it instead.
>>>>>>
>>>>>> Also change %d in %u, because status is an u32, not a int.
>>>>>>
>>>>>> Fixes: 096030e7f449 ("nvmem: sprd: Add Spreadtrum SoCs eFuse support")
>>>>>> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
>>>>>> Acked-by: Chunyan Zhang <zhang.lyra@...il.com>
>>>>>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>>>>>> ---
>>>>>>    drivers/nvmem/sprd-efuse.c | 2 +-
>>>>>>    1 file changed, 1 insertion(+), 1 deletion(-)
>>>>>>
>>>>>> diff --git a/drivers/nvmem/sprd-efuse.c b/drivers/nvmem/sprd-efuse.c
>>>>>> index 5d394559edf2..e3e721d4c205 100644
>>>>>> --- a/drivers/nvmem/sprd-efuse.c
>>>>>> +++ b/drivers/nvmem/sprd-efuse.c
>>>>>> @@ -234,7 +234,7 @@ static int sprd_efuse_raw_prog(struct sprd_efuse *efuse, u32 blk, bool doub,
>>>>>>    	status = readl(efuse->base + SPRD_EFUSE_ERR_FLAG);
>>>>>>    	if (status) {
>>>>>>    		dev_err(efuse->dev,
>>>>>> -			"write error status %d of block %d\n", ret, blk);
>>>>>> +			"write error status %u of block %d\n", status, blk);
>>>>>
>>>>> Shouldn't this be %pe and not %u?
>>>>
>>>> This is not error pointer its status value read back from a register.
>>>>
>>>> I think %u should be good here.
>>>
>>> Argh, you are right, my fault.  For some reason I thought this worked
>>> for integers as well.  Don't we have such a printk modifier somewhere to
>>> turn error values into strings?  Let me dig...
>>
>> Ah, errname() will do it.
>>
>> Looks like no one uses it, so nevermind, sorry for the noise.  I'll go
>> apply this one now.
> 
> Does not apply to my tree :(

Looks like its already in your tree since May 7th.

--srini
>