From 6c132d1bcdc716e898b4092bb1abc696505c37e7 Mon Sep 17 00:00:00 2001
From: David Woodhouse <dwmw2@infradead.org>
Date: Mon, 19 Jan 2009 16:52:39 +0100
Subject: [PATCH] dma-debug: print stacktrace of mapping path on unmap error

Impact: saves stacktrace of a dma mapping and prints it if there is an  error

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Reading git-format-patch failed