bus: mvebu-mbus: allow several windows with the same target/attribute

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')
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397823593-1932-7-git-send-email-thomas.petazzoni@free-electrons.com
Tested-by: Neil Greatorex <neil@fatboyfat.co.uk>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 0 insertions, 6 deletions

diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
index afee0f731111..00b73448b22e 100644
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -223,12 +223,6 @@ static int mvebu_mbus_window_conflicts(struct mvebu_mbus_state *mbus,
                  */
                 if ((u64)base < wend && end > wbase)
                         return 0;
-
-                /*
-                 * Check if target/attribute conflicts
-                 */
-                if (target == wtarget && attr == wattr)
-                        return 0;
         }
 
         return 1;