Re: [PATCH] KEYS: trusted: Fix trusted key backends when building as module

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On Fri, Jul 16, 2021 at 10:17:22AM +0200, Andreas Rammhold wrote:
> Before this commit the kernel could end up with no trusted key sources
> even thought both of the currently supported backends (tpm & tee) were

Nit: "TPM and TEE" instead of "tpm & tee"

> compoiled as modules. This manifested in the trusted key type not being
> registered at all.

Do you have a commit ID for the failing commit?

> When checking if a CONFIG_… preprocessor variable is defined we only
> test for the builtin (=y) case and not the module (=m) case. By using
> the IS_ENABLE(…) macro we to test for both cases.

Nit: IS_ENABLED() (without dots inside, missing 'D').

> 
> Signed-off-by: Andreas Rammhold <andreas@xxxxxxxxxxx>
> ---
>  security/keys/trusted-keys/trusted_core.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/security/keys/trusted-keys/trusted_core.c b/security/keys/trusted-keys/trusted_core.c
> index d5c891d8d353..fd640614b168 100644
> --- a/security/keys/trusted-keys/trusted_core.c
> +++ b/security/keys/trusted-keys/trusted_core.c
> @@ -27,10 +27,10 @@ module_param_named(source, trusted_key_source, charp, 0);
>  MODULE_PARM_DESC(source, "Select trusted keys source (tpm or tee)");
>  
>  static const struct trusted_key_source trusted_key_sources[] = {
> -#if defined(CONFIG_TCG_TPM)
> +#if IS_ENABLED(CONFIG_TCG_TPM)
>  	{ "tpm", &trusted_key_tpm_ops },
>  #endif
> -#if defined(CONFIG_TEE)
> +#if IS_ENABLED(CONFIG_TEE)
>  	{ "tee", &trusted_key_tee_ops },
>  #endif
>  };
> -- 
> 2.32.0
> 
> 

/Jarkko



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