Re: [PATCH 1/8] tpm: block messages while suspended

[Stephen Boyd <swboyd@chromium.org>]

Quoting Jarkko Sakkinen (2019-06-14 08:27:00)
> On Thu, Jun 13, 2019 at 11:09:24AM -0700, Stephen Boyd wrote:
> > diff --git a/include/linux/tpm.h b/include/linux/tpm.h
> > index 1b5436b213a2..48df005228d0 100644
> > --- a/include/linux/tpm.h
> > +++ b/include/linux/tpm.h
> > @@ -132,6 +132,8 @@ struct tpm_chip {
> >       int dev_num;            /* /dev/tpm# */
> >       unsigned long is_open;  /* only one allowed */
> >  
> > +     unsigned long is_suspended;
> > +
> >       char hwrng_name[64];
> >       struct hwrng hwrng;
> 
> I think it would better idea to have a bitmask of some sort that
> would have bits for 'open' and 'suspended'.
> 

Sure. I can combine is_open and is_suspended into some sort of 'unsigned
long flags' member and then have #define TPM_IS_OPEN 0 and #define
TPM_IS_SUSPENDED 1 defines?