linux-kernel - Re: [PATCH v4 1/2] PCI: endpoint: Add BAR subrange mapping support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aV97tR3AKxBVCBHr@ryzen>
Date: Thu, 8 Jan 2026 10:41:09 +0100
From: Niklas Cassel <cassel@...nel.org>
To: Koichiro Den <den@...inux.co.jp>
Cc: jingoohan1@...il.com, mani@...nel.org, lpieralisi@...nel.org,
	kwilczynski@...nel.org, robh@...nel.org, bhelgaas@...gle.com,
	Frank.Li@....com, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/2] PCI: endpoint: Add BAR subrange mapping support

On Thu, Jan 08, 2026 at 10:37:35AM +0100, Niklas Cassel wrote:
> @@ -596,6 +596,9 @@ int pci_epc_set_bar(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
>  	if (!epc_features)
>  		return -EINVAL;
>  
> +	if (epf_bar->flags && !epc_features->subrange_mapping)
> +		return -EINVAL;

This should of course have been:

	if (epf_bar->use_submap && !epc_features->subrange_mapping)
		return -EINVAL;


(I simply used flags in order to compile test without applying your series.)


Kind regards,
Niklas