Re: [PATCH] tpm: Move Linux RNG connection to hwrng

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On Wed, Oct 25, 2017 at 08:15:09PM +0530, PrasannaKumar Muralidharan wrote:
> > +       if (!IS_ENABLED(CONFIG_HW_RANDOM_TPM))
> > +               return 0;
> 
> Can #ifndef CONFIG_HW_RANDOM_TPM be used instead? That way an if
> condition can be avoided.

Nope. There is no reason to avoid the if-condition. Compiler will take
care of it. IS_ENABLED() macro is available just for the purpose Jason
is using it.

> > +       char tpm_hwrng_name[64];
> > +       struct hwrng tpm_hwrng;
> > +
> 
> Can this also be put inside the #ifdef?

Yes. It should be inside #ifdef.

/Jarkko



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