linux-kernel - Re: [PATCH 2/3] dma-buf: add support for kernel cpu access

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:	Mon, 5 Mar 2012 19:57:59 +0100
From:	Daniel Vetter <daniel.vetter@...ll.ch>
To:	Rob Clark <robdclark@...il.com>
Cc:	linaro-mm-sig@...ts.linaro.org,
	LKML <linux-kernel@...r.kernel.org>,
	DRI Development <dri-devel@...ts.freedesktop.org>,
	linux-media@...r.kernel.org
Subject: Re: [PATCH 2/3] dma-buf: add support for kernel cpu access

On Fri, Mar 2, 2012 at 23:24, Rob Clark <robdclark@...il.com> wrote:
> Perhaps we should check somewhere for required dmabuf ops fxns (like
> kmap_atomic here), rather than just calling unconditionally what might
> be a null ptr.  At least put it in the WARN_ON(), but it might be
> nicer to catch a missing required fxns at export time, rather than
> waiting for an importer to try and call it.  Less likely that way, for
> newly added required functions go unnoticed.
>
> (same comment applies below for the non-atomic variant.. and possibly
> some other existing dmabuf ops)

Agreed, I'll rework the patch to do that when rebasing onto Sumit's latest tree.
-Daniel
-- 
Daniel Vetter
daniel.vetter@...ll.ch - +41 (0) 79 365 57 48 - http://blog.ffwll.ch
--
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/