tpm: use struct tpm_chip for tpm_chip_find_get()

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Device number (the character device index) is not a stable identifier
for a TPM chip. That is the reason why every call site passes
TPM_ANY_NUM to tpm_chip_find_get().

This commit changes the API in a way that instead a struct tpm_chip
instance is given and NULL means the default chip. In addition, this
commit refines the documentation to be up to date with the
implementation.

Suggested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> (@chip_num -> @chip part)
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@ziepe.ca>
Tested-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>

...

This commit is contained in:

Jarkko Sakkinen 2017-11-05 13:16:26 +02:00

parent 58cc1e4faf

commit aad887f664

9 changed files with 126 additions and 116 deletions

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38

include/linux/tpm.h

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