[PATCH] tpm: allow TCPA log area to be empty

[Jason Gunthorpe]

On Sat, Mar 10, 2018 at 06:16:37PM +0200, Jarkko Sakkinen wrote:
> TCPA log are can be empty when the TPM is disabled. This commit changes the
> behavior of tpm_read_log_acpi() to return successfully in this case.

The commit should explain why we'd want this..

eg Why does it matter to create the extra sysfs files to report an empty
log?

Jason
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