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Date:	Mon, 26 Oct 2009 09:26:19 -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] ima: remove ACPI dependency

Remove ACPI dependency on systems without a TPM enabled.

Reported-by: Jean-Christophe Dubois <jcd@...budubois.net>
Signed-off-by: Mimi Zohar <zohar@...ibm.com>
Acked-by: Jean-Christophe Dubois <jcd@...budubois.net>
Cc: Stable Kernel <stable@...nel.org>
---
 security/integrity/ima/Kconfig |   17 +++++++----------
 1 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index 3d7846d..3ca39e7 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -2,15 +2,12 @@
 #
 config IMA
 	bool "Integrity Measurement Architecture(IMA)"
-	depends on ACPI
-	depends on SECURITY
 	select SECURITYFS
 	select CRYPTO
 	select CRYPTO_HMAC
 	select CRYPTO_MD5
 	select CRYPTO_SHA1
-	select TCG_TPM
-	select TCG_TIS
+	select ACPI if TCG_TPM
 	help
 	  The Trusted Computing Group(TCG) runtime Integrity
 	  Measurement Architecture(IMA) maintains a list of hash
@@ -19,12 +16,12 @@ config IMA
 	  to change the contents of an important system file
 	  being measured, we can tell.
 
-	  If your system has a TPM chip, then IMA also maintains
-	  an aggregate integrity value over this list inside the
-	  TPM hardware, so that the TPM can prove to a third party
-	  whether or not critical system files have been modified.
-	  Read <http://www.usenix.org/events/sec04/tech/sailer.html>
-	  to learn more about IMA.
+	  If your system has a TPM chip, and it is enabled, then
+	  IMA also maintains an aggregate integrity value over
+	  this list inside the TPM hardware, so that the TPM can
+	  prove to a third party whether or not critical system
+	  files have been modified. To learn more about IMA, read
+	  <http://www.usenix.org/events/sec04/tech/sailer.html>
 	  If unsure, say N.
 
 config IMA_MEASURE_PCR_IDX
-- 
1.6.0.6

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