linux-kernel - Re: lanana: Add major/minor entries for PPC QE UART devices

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] [day] [month] [year] [list]

Message-Id: <7a96cdcde345a4e75fb451cecd32501f@kernel.crashing.org>
Date:	Thu, 1 Mar 2007 17:43:57 +0100
From:	Segher Boessenkool <segher@...nel.crashing.org>
To:	Dan Malek <dan@...eddedalley.com>
Cc:	Kumar Gala <galak@...nel.crashing.org>,
	linux-ppc-embedded <linuxppc-embedded@...abs.org>,
	Timur Tabi <timur@...escale.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>, Torben.Mathiasen@...com
Subject: Re: lanana: Add major/minor entries for PPC QE UART devices

>> - Cap the driver at 4 UARTs;
>
> Let's do this, but design the code to
> allow more by just changing a #define.
>
>> Just randomly using some extra minors that aren't
>> assigned to you isn't such a great idea.
>
> Maybe for a desktop or generic server where
> you don't know what's going to be configured,
> but it's not unusual to do so with custom
> embedded systems.

You can do whatever you want in your own stuff
but that's not how things work in the mainstream
Linux kernel.

> The small experimental
> or user allocations often don't cover what
> is needed, so we just grab some allocation
> from a device that isn't ever going to be
> used on the system.

Sure I've done that myself a few times, but this
just doesn't fly for in-kernel drivers; those have
their own ranges defined in devices.txt and don't
use random other minors.


Segher

-
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/