Re: [PATCH v3] tpm: use struct tpm_chip for tpm_chip_find_get()

From: Jason Gunthorpe
Date: Tue Oct 31 2017 - 16:03:13 EST


On Thu, Oct 26, 2017 at 03:54:50PM +0200, Jarkko Sakkinen wrote:
> 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@xxxxxxxxxxxxxxxxxxxx> (@chip_num -> @chip)
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxx>

Jason