linux-kernel - Re: [PATCH] x86: Fix gfp flags for coherent DMA memory allocation

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]

Message-ID: <20150917000442.GA21686@lst.de>
Date:	Thu, 17 Sep 2015 02:04:42 +0200
From:	Christoph Hellwig <hch@....de>
To:	Junichi Nomura <j-nomura@...jp.nec.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"mingo@...hat.com" <mingo@...hat.com>,
	Christoph Hellwig <hch@....de>, "hpa@...or.com" <hpa@...or.com>
Subject: Re: [PATCH] x86: Fix gfp flags for coherent DMA memory allocation

On Mon, Sep 14, 2015 at 07:38:36AM +0000, Junichi Nomura wrote:
> Commit 6894258eda2f reversed the order of gfp_flags adjustment in
> dma_alloc_attrs() for x86 [arch/x86/kernel/pci-dma.c]
> As a result, relevant flags set by dma_alloc_coherent_gfp_flags()
> is just discarded and causes coherent DMA memory allocation failure
> on some devices.

Oops, sorry.  Thanks for fixing this:

Acked-by: Christoph Hellwig <hch@....de>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/