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

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Date:	Mon, 26 Oct 2009 09:26:18 -0400
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	James Morris <jmorris@...ei.org>,
	Rajiv Andrade <srajiv@...ux.vnet.ibm.com>,
	Jean-Christophe Dubois <jcd@...budubois.net>,
	David Safford <safford@...son.ibm.com>,
	Mimi Zohar <zohar@...ibm.com>,
	Stable Kernel <stable@...nel.org>
Subject: [PATCH] tpm add default function definitions

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
-- 
1.6.0.6

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