linux-kernel - Re: [PATCH 2/3] thermal: rockchip: improve conversion error messages

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Message-ID: <e948fc3b-0d5f-f19a-67e5-aa8114066aab@rock-chips.com>
Date:   Sat, 19 Nov 2016 11:35:04 +0800
From:   Caesar Wang <wxt@...k-chips.com>
To:     Brian Norris <briannorris@...omium.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>
Cc:     Heiko Stuebner <heiko@...ech.de>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Stephen Barber <smbarber@...omium.org>,
        linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH 2/3] thermal: rockchip: improve conversion error messages

在 2016年11月19日 11:31, Caesar Wang 写道:
> Brian,
>
> 在 2016年11月19日 07:52, Brian Norris 写道:
>> These error messages don't give much information about what went wrong.
>> It would be nice, for one, to see what invalid temperature was being
>> requested when conversion fails. It's also good to return an error when
>> we can't handle a conversion properly.
>>
>> While we're at it, fix the grammar too.
>>
>> Signed-off-by: Brian Norris <briannorris@...omium.org>
Reviewed-by: Caesar Wang@...k-chips.com

Thanks the fixes.

-Caesar
>> ---
>> Note: it'd probably be even nicer to know which sensor this was, but 
>> we've
>> kinda abstracted that one away by this point...
>>
>>   drivers/thermal/rockchip_thermal.c | 7 +++++--
>>   1 file changed, 5 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/thermal/rockchip_thermal.c 
>> b/drivers/thermal/rockchip_thermal.c
>> index e227a9f0acf7..35554d146b9d 100644
>> --- a/drivers/thermal/rockchip_thermal.c
>> +++ b/drivers/thermal/rockchip_thermal.c
>> @@ -424,7 +424,8 @@ static u32 rk_tsadcv2_temp_to_code(struct 
>> chip_tsadc_table table,
>>       }
>>     exit:
>> -    pr_err("Invalid the conversion, error=%d\n", error);
>> +    pr_err("%s: invalid temperature, temp=%d error=%d\n",
>> +        __func__, temp, error);
>
> I have do some similar for rockchip inside thermal driver.  Forget to 
> send for upstream. :(
> exit:
>     pr_err("%s: Invalid conversion table: code=%d, temperature=%d\n",
>            __func__, error, temp);
>
>>       return error;
>>   }
>>   @@ -475,7 +476,9 @@ static int rk_tsadcv2_code_to_temp(struct 
>> chip_tsadc_table table, u32 code,
>>           }
>>           break;
>>       default:
>> -        pr_err("Invalid the conversion table\n");
>> +        pr_err("%s: invalid conversion table, mode=%d\n",
>> +            __func__, table.mode);
>> +        return -EINVAL;
>>       }
>>         /*
>