linux-kernel - Re: [PATCH] tpm: Fix the description error of the help information in Kconfig

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Date:   Mon, 27 Jul 2020 16:25:53 +0800
From:   Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Peter Huewe <peterhuewe@....de>,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        gregkh <gregkh@...uxfoundation.org>,
        linux-integrity@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Christophe Ricard <christophe.ricard@...il.com>,
        Peter Huewe <peter.huewe@...ineon.com>,
        Alexander Steffen <Alexander.Steffen@...ineon.com>
Subject: Re: [PATCH] tpm: Fix the description error of the help information in
 Kconfig

Thanks for your advice, I have submitted a v2 patch.

Thanks,
Tianjia

On 2020/7/27 15:10, Arnd Bergmann wrote:
> On Mon, Jul 27, 2020 at 4:54 AM Tianjia Zhang
> <tianjia.zhang@...ux.alibaba.com> wrote:
>>
>> Obviously, the TPM version number in the help message is wrong, which
>> will cause confusion. This patch fixes it.
> 
> How is this "obvious"? I tried finding the specification and could not
> see anything
> to back up TIS 1.3 being only supported with TPM 1.3, or the existence of a
> TPM 1.3 specification at all.
> 
> Please consider that not everyone reading this patch description is deeply
> familiar with the details and explain exactly what the mistake is.
> 
>> Signed-off-by: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
> 
> In a bug fix, try to always add a 'FIxes' tag such as 'Fixes: 0edbfea537d1
> ("tpm/tpm_tis_spi: Add support for spi phy")', and Cc everyone that was
> involved in the original patch that introduced a bug so they can Ack or
> Nak it.
> 
>        Arnd
> 
>>   drivers/char/tpm/Kconfig | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
>> index 58b4c573d176..8eedb3e704f3 100644
>> --- a/drivers/char/tpm/Kconfig
>> +++ b/drivers/char/tpm/Kconfig
>> @@ -62,7 +62,7 @@ config TCG_TIS_SPI
>>          help
>>            If you have a TPM security chip which is connected to a regular,
>>            non-tcg SPI master (i.e. most embedded platforms) that is compliant with the
>> -         TCG TIS 1.3 TPM specification (TPM1.2) or the TCG PTP FIFO
>> +         TCG TIS 1.3 TPM specification (TPM1.3) or the TCG PTP FIFO
>>            specification (TPM2.0) say Yes and it will be accessible from
>>            within Linux. To compile this driver as a module, choose  M here;
>>            the module will be called tpm_tis_spi.
>> --
>> 2.17.1
>>