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36 lines
1.2 KiB
36 lines
1.2 KiB
6 years ago
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From dc9be9a67256c7bafe4aa75d2033ce344e3f0409 Mon Sep 17 00:00:00 2001
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From: Peter Huewe <peterhuewe@gmx.de>
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Date: Mon, 3 Sep 2018 21:51:51 +0200
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Subject: [PATCH 447/454] tpm: Make SECURITYFS a weak dependency
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commit 2f7d8dbb11287cbe9da6380ca14ed5d38c9ed91f upstream.
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While having SECURITYFS enabled for the tpm subsystem is beneficial in
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most cases, it is not strictly necessary to have it enabled at all.
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Especially on platforms without any boot firmware integration of the TPM
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(e.g. raspberry pi) it does not add any value for the tpm subsystem,
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as there is no eventlog present.
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By turning it from 'select' to 'imply' it still gets selected per
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default, but enables users who want to save some kb of ram by turning
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SECURITYFS off.
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Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
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Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
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Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
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---
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drivers/char/tpm/Kconfig | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/char/tpm/Kconfig
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+++ b/drivers/char/tpm/Kconfig
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@@ -5,7 +5,7 @@
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menuconfig TCG_TPM
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tristate "TPM Hardware Support"
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depends on HAS_IOMEM
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- select SECURITYFS
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+ imply SECURITYFS
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select CRYPTO
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select CRYPTO_HASH_INFO
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---help---
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