linux-kernel - Re: [PATCH v5 12/21] tpm: move pcr extend code to tpm2-cmd.c

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Date:   Tue, 2 Oct 2018 03:52:08 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Tomas Winkler <tomas.winkler@...el.com>
Cc:     Jason Gunthorpe <jgg@...pe.ca>,
        Nayna Jain <nayna@...ux.vnet.ibm.com>,
        Alexander Usyskin <alexander.usyskin@...el.com>,
        Tadeusz Struk <tadeusz.struk@...el.com>,
        linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 12/21] tpm: move pcr extend code to tpm2-cmd.c

On Sat, Sep 29, 2018 at 01:30:26AM +0300, Tomas Winkler wrote:
> Add tpm2_pcr_extend() function to tpm2-cmd.c with signature required
> by tpm-interface.c. It wraps the original open code
> implementation. The original original tpm2_pcr_extend() function
> is renamed to __tpm2_pcr_extend() and made static, it is called
> only from new tpm2_pcr_extend().
> 
> Fix warnings in __tpm2_pcr_extend()
> tpm2-cmd.c:251:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
> tpm2-cmd.c:252:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
> 
> Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>

We do not want the signature change, especially because as we are
working on getting Roberto's changes in and also because it has
absolutely a zero gain. Who cares if those functions take different
parameters? I don't.

/Jarkko