[PATCH v2] tpm: use struct tpm_chip for tpm_chip_find_get()

Jason Gunthorpe jgunthorpe at obsidianresearch.com
Wed Oct 25 15:22:25 UTC 2017


On Wed, Oct 25, 2017 at 01:55:04PM +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 at obsidianresearch.com> (@chip_num -> @chip)
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen at linux.intel.com>
> v2:
> * Further defined function documentation.
> * Changed @chip_num to @chip instead of removing the parameter as suggested by
>   Jason Gunthorpe.

Reviewed-by: Jason Gunthorpe <jgunthorpe at obsidianresearch.com>

Jason
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