Re: [PATCH v5 11/23] alpha/PCI: Add security_locked_down() check to pci_mmap_resource()

Krzysztof WilczyƄski <[email protected]> Wed, 22 Apr 2026 04:50:42 +0900
Newsgroups org.kernel.vger.linux-alpha,org.kernel.vger.linux-pci,org.ozlabs.lists.linuxppc-dev
Message-ID <20260421195042.GD1684602@rocinante>
Hello,

> @@ -71,7 +72,11 @@ static int pci_mmap_resource(struct kobject *kobj,
>  	struct resource *res = attr->private;
>  	enum pci_mmap_state mmap_type;
>  	struct pci_bus_region bar;
> -	int i;
> +	int i, ret;
> +
> +	ret = security_locked_down(LOCKDOWN_PCI_ACCESS);
> +	if (ret)
> +		return ret;

There is feedback from Sashiko about this:

  https://sashiko.dev/#/patchset/20260416180107.777065-1-kwilczynski%40kernel.org?part=11

Might be something to look into later.  Out of scope for this series.

Thank you!

	Krzysztof