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SubjectRe: [PATCH] security/keys/trusted: Allow operation without hardware TPM
On Mon, Mar 18, 2019 at 04:45:13PM -0700, Dan Williams wrote:
> Rather than fail initialization of the trusted.ko module, arrange for
> the module to load, but rely on trusted_instantiate() to fail
> trusted-key operations.
>
> Fixes: 240730437deb ("KEYS: trusted: explicitly use tpm_chip structure...")
> Cc: Roberto Sassu <roberto.sassu@huawei.com>
> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
> Cc: James Bottomley <jejb@linux.ibm.com>
> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
> Cc: Mimi Zohar <zohar@linux.ibm.com>
> Cc: David Howells <dhowells@redhat.com>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>

It should check for chip in each function that uses TPM now that
the code does not rely on default chip. Otherwise, the semantics
are kind of inconsistent.

/Jarkko

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