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tpm: Make SECURITYFS a weak dependency

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While having SECURITYFS enabled for the tpm subsystem is beneficial in
most cases, it is not strictly necessary to have it enabled at all.
Especially on platforms without any boot firmware integration of the TPM
(e.g. raspberry pi) it does not add any value for the tpm subsystem,
as there is no eventlog present.

By turning it from 'select' to 'imply' it still gets selected per
default, but enables users who want to save some kb of ram by turning
SECURITYFS off.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This commit is contained in:
Peter Huewe 2018-09-03 21:51:51 +02:00 committed by Jarkko Sakkinen
parent 0d6d0d62d9
commit 2f7d8dbb11
1 changed files with 1 additions and 1 deletions
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2
drivers/char/tpm/Kconfig
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@ -5,7 +5,7 @@
menuconfig TCG_TPM
tristate "TPM Hardware Support"
depends on HAS_IOMEM
select SECURITYFS
imply SECURITYFS
select CRYPTO
select CRYPTO_HASH_INFO
---help---