linux-kernel - Re: [PATCH 1/1] [tegra] Make syncpt routines accessible by drivers

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, 14 Feb 2011 16:22:11 -0800
From:	Erik Gilling <konkers@...roid.com>
To:	Andrew Chew <AChew@...dia.com>
Cc:	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"ccross@...roid.com" <ccross@...roid.com>,
	"olof@...om.net" <olof@...om.net>
Subject: Re: [PATCH 1/1] [tegra] Make syncpt routines accessible by drivers

Yeah, including the relative path was a bit of a hack since the nvhost
drivers needs some serious work before it's upstreamable.  A "right"
way to do this is to have the syncpt functions take an nvhost_device
pointer (or create helper functions that do that,) then expose those
functions in mach/nvhost.h.  This obviates the need for a global
nvhost_sycpt pointer.

-Erik

On Mon, Feb 14, 2011 at 4:08 PM, Andrew Chew <AChew@...dia.com> wrote:
>> If you want to use syncpts you should be an nvhost_driver link the dc.
>
> Looking at drivers/video/tegra/dc, I notice that it gets access to the syncpt functions by using a relative path (../host/dev.h) to include dev.h, which in turn includes nvhost_syncpt.h (in drivers/video/tegra/host).  Is this proper form?
>
> This syncpt access is for a Tegra V4L2 driver, which will live in drivers/media/video.  I was trying to avoid using relative paths for #includes.  I assumed that the header files in drivers/video/tegra/host were not meant to be publicly available to other drivers, which is why I looked for some precedent in how nvhost functions were made available to other kernel drivers, hence I modeled this after nvmap.
--
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/