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Message-Id: <20140604232353.090095689@linuxfoundation.org>
Date: Wed, 4 Jun 2014 16:23:07 -0700
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
Neil Greatorex <neil@...boyfat.co.uk>,
Jason Cooper <jason@...edaemon.net>
Subject: [PATCH 3.14 158/228] bus: mvebu-mbus: allow several windows with the same target/attribute
3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
commit b566e782be32145664d96ada3e389f17d32742e5 upstream.
Having multiple windows with the same target and attribute is actually
legal, and can be useful for PCIe windows, when PCIe BARs have a size
that isn't a power of two, and we therefore need to create several
MBus windows to cover the PCIe BAR for a given PCIe interface.
Fixes: fddddb52a6c4 ('bus: introduce an Marvell EBU MBus driver')
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Link: https://lkml.kernel.org/r/1397823593-1932-7-git-send-email-thomas.petazzoni@free-electrons.com
Tested-by: Neil Greatorex <neil@...boyfat.co.uk>
Signed-off-by: Jason Cooper <jason@...edaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/bus/mvebu-mbus.c | 6 ------
1 file changed, 6 deletions(-)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -222,12 +222,6 @@ static int mvebu_mbus_window_conflicts(s
*/
if ((u64)base < wend && end > wbase)
return 0;
-
- /*
- * Check if target/attribute conflicts
- */
- if (target == wtarget && attr == wattr)
- return 0;
}
return 1;
--
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