linux-kernel - RE: [PATCH 00/13] Refactor pci_is

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Fri, 25 Apr 2014 09:42:45 +0000
From:	David Laight <David.Laight@...LAB.COM>
To:	'Yijing Wang' <wangyijing@...wei.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	Tony Luck <tony.luck@...el.com>,
	"linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"sparclinux@...r.kernel.org" <sparclinux@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: RE: [PATCH 00/13] Refactor pci_is_brdige() to simplify code

From: Yijing Wang
> This patchset rename the current pci_is_bridge() to pci_has_subordinate(),
> and introduce a new pci_is_bridge() which determine pci bridge by check
> dev->hdr_type. The new one is more accurate. PCIe Spec define the pci
> device is a bridge by the dev->hdr_type = 0x01 || 0x02.

That is a dangerous rename and is likely to cause difficult to
identify bugs in any code you've missed.

	David