linux-kernel - Re: [PATCH] tpm add default function definitions

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Date:	Mon, 26 Oct 2009 12:06:27 -0200
From:	Rajiv Andrade <srajiv@...ux.vnet.ibm.com>
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
CC:	linux-kernel@...r.kernel.org, James Morris <jmorris@...ei.org>,
	Jean-Christophe Dubois <jcd@...budubois.net>,
	David Safford <safford@...son.ibm.com>,
	Mimi Zohar <zohar@...ibm.com>,
	Stable Kernel <stable@...nel.org>
Subject: Re: [PATCH] tpm add default function definitions

Acked-by: Rajiv Andrade <srajiv@...ux.vnet.ibm.com>

Mimi Zohar wrote:
> Add default tpm_pcr_read/extend function definitions required
> by IMA/Kconfig changes.
>
> Signed-off-by: Mimi Zohar <zohar@...ibm.com>
> Cc: Stable Kernel <stable@...nel.org>
> ---
>  include/linux/tpm.h |    7 +++++++
>  1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/tpm.h b/include/linux/tpm.h
> index 3338b3f..8eaa8f8 100644
> --- a/include/linux/tpm.h
> +++ b/include/linux/tpm.h
> @@ -31,5 +31,12 @@
>
>  extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf);
>  extern int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash);
> +#else
> +static inline int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf) {
> +	return -ENODEV;
> +}
> +static inline int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash) {
> +	return -ENODEV;
> +}
>  #endif
>  #endif
>   

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