| Message ID | 20180903195151.7576-1-peterhuewe@gmx.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | tpm: Make SECURITYFS a weak dependency | expand |
On Mon, Sep 03, 2018 at 09:51:51PM +0200, Peter Huewe wrote: > 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> > --- > drivers/char/tpm/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig > index 18c81cbe4704..536e55d3919f 100644 > --- a/drivers/char/tpm/Kconfig > +++ b/drivers/char/tpm/Kconfig > @@ -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--- > -- > 2.16.4 > Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> /Jarkko
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index 18c81cbe4704..536e55d3919f 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -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---
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> --- drivers/char/tpm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)