netdev - Re: [PATCH 02/11] sky2: fix DMA sync

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:	Wed, 20 Jan 2010 15:41:26 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	jarkao2@...il.com
Cc:	shemminger@...tta.com, netdev@...r.kernel.org
Subject: Re: [PATCH 02/11] sky2: fix DMA sync_single length error

From: David Miller <davem@...emloft.net>
Date: Wed, 20 Jan 2010 15:34:51 -0800 (PST)

> Whereas 1 patch in the 1 place in the DMA API implementation would fix
> everything for everybody.

For the record I just checked DMAR and Intel-IOMMU and they
don't even implement the SYNC ops, they are NULL and thus
can't be effected by the changes being discussed here.

The generic DMA SYNC operations check for a NULL function
pointer in the DMA operations, and do nothing if it is NULL.

Thus, so far it is proven that only the DMA debugging code 
actually has this SYNC length requirement.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html