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Subject: Re: [PATCH v11 00/16] Remove nested TPM operations
To:     Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc:     Alexander Steffen <Alexander.Steffen@infineon.com>,
        linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-security-module@vger.kernel.org,
        Peter Huewe <PeterHuewe@gmx.de>,
        Jason Gunthorpe <jgg@ziepe.ca>,
        Tomas Winkler <tomas.winkler@intel.com>,
        Tadeusz Struk <tadeusz.struk@intel.com>,
        Stefan Berger <stefanb@linux.vnet.ibm.com>,
        Nayna Jain <nayna@linux.ibm.com>
References: <20190205224723.19671-1-jarkko.sakkinen@linux.intel.com>
 <20190206120634.GA4680@linux.intel.com>
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 <20190207212912.GD23906@linux.intel.com>
 <0af40351-91d5-d0a7-2965-0a9c6505af79@linux.ibm.com>
 <20190208003314.GB7202@linux.intel.com>
 <1fbd29ad-1005-8450-4c39-00974468183b@linux.ibm.com>
 <20190208111442.GA11755@linux.intel.com>
From:   Stefan Berger <stefanb@linux.ibm.com>
Date:   Fri, 8 Feb 2019 07:05:26 -0500
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On 2/8/19 6:14 AM, Jarkko Sakkinen wrote:
> On Thu, Feb 07, 2019 at 08:51:15PM -0500, Stefan Berger wrote:
>>>> +    rc = 0;
>>>>        if (chip->flags & TPM_CHIP_FLAG_IRQ)
>>>>            goto out_recv;
>>> What why?
>>
>> This fix seems to only be necessary when bisecting. You may want to apply
>> it!
> I don't want to apply it because I don't understand why it would
> be needed. Can you give a short explanation?


See my comment on [PATCH v11 08/16]. It needs to be added in that patch 
since otherwise rc holds a non-zero value on function exit, which is 
wrong at that point.


>
> /Jarkko
>