From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Thu, 15 Oct 2009 19:16:53 +0000 (+0200)
Subject: firewire: cdev: reduce stack usage by ioctl_dispatch
X-Git-Tag: v2.6.33-rc1~383^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2c0a2ac3e59f4764c59c23bd90b571e44256030;p=pandora-kernel.git

firewire: cdev: reduce stack usage by ioctl_dispatch

Replace a hardcoded buffer size by a sizeof union {}.  This shrinks the
stack-allocated ioctl argument buffer from 256 to 40 bytes.  (This is
not much, but subsequent stack usage particularly by the queue_iso ioctl
handler adds up.)

The new form is also easier to keep up to date than a hardcoded size if
more ioctls are added.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---

Reading git-diff-tree failed