linux-kernel - Re: dmaengine.c: question about device_alloc_chan

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: <48D26A74.4030104@freescale.com>
Date:	Thu, 18 Sep 2008 09:49:24 -0500
From:	Timur Tabi <timur@...escale.com>
To:	Haavard Skinnemoen <haavard.skinnemoen@...el.com>
CC:	Dan Williams <dan.j.williams@...el.com>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: dmaengine.c: question about device_alloc_chan_resources

Haavard Skinnemoen wrote:

> I guess so. What would be even more simple is to simply prevent other
> clients from taking a channel once someone has acked it, which would be
> perfect for my purposes, but perhaps not everyone else's...

I'm not clear on how your driver works, but doesn't it run continuous tests on
all channels all the time?  If so, wouldn't your proposal prevent other drivers
from ever getting a DMA channel?

-- 
Timur Tabi
Linux kernel developer at Freescale
--
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/