linux-kernel - Re: [PATCH v3 1/5] tpm: change the end marker of the active

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Message-Id: <1541422938.21115.53.camel@linux.ibm.com>
Date:   Mon, 05 Nov 2018 08:02:18 -0500
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Roberto Sassu <roberto.sassu@...wei.com>,
        jarkko.sakkinen@...ux.intel.com
Cc:     linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, silviu.vlasceanu@...wei.com
Subject: Re: [PATCH v3 1/5] tpm: change the end marker of the active_banks
 array to zero


> >>> diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
> >>> index 1a803b0cf980..f7fc4b5ee239 100644
> >>> --- a/drivers/char/tpm/tpm-interface.c
> >>> +++ b/drivers/char/tpm/tpm-interface.c
> >>> @@ -1051,7 +1051,7 @@ int tpm_pcr_extend(struct tpm_chip *chip, int pcr_idx, const u8 *hash)
> >>>   		memset(digest_list, 0, sizeof(digest_list));
> >>>   
> >>>   		for (i = 0; i < ARRAY_SIZE(chip->active_banks) &&
> >>> -			    chip->active_banks[i] != TPM2_ALG_ERROR; i++) {
> >>> +			    chip->active_banks[i]; i++) {
> >>>   			digest_list[i].alg_id = chip->active_banks[i];
> >>>   			memcpy(digest_list[i].digest, hash, TPM_DIGEST_SIZE);
> >>>   			count++;
> > 
> > The fourth patch further updates this code.  Please move those changes
> > to this first patch.  No need to touch the same code in both places.
> 
> alg_id is introduced in patch 4/5. It cannot be moved here.

Thanks, I missed that.

Mimi