Re: [PATCH v6 08/12] x86/PM/keylocker: Restore internal wrapping key on resume from ACPI S3/4

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On Mon, Apr 10, 2023 at 03:59:32PM -0700, Chang S. Bae wrote:
> +/*
> + * This flag is set with IWKey load. When the key restore fails, it is
> + * reset. This restore state is exported to the crypto library, then AES-KL
> + * will not be used there. So, the feature is soft-disabled with this flag.
> + */
> +static bool valid_kl;
> +
> +bool valid_keylocker(void)
> +{
> +	return valid_kl;
> +}
> +EXPORT_SYMBOL_GPL(valid_keylocker);

It would be simpler to export this bool directly.

> +	if (status & BIT(0))
> +		return 0;
> +	else
> +		return -EBUSY;
[...]
> +		pr_info("x86/keylocker: Enabled.\n");
> +		return;
> +	} else {
> +		int rc;

The kernel coding style usually doesn't use 'else' after a return.

- Eric



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