commit: e90fc3cb087ce5c5f81e814358222cd6d197b5db
From: Peter Chen <[email protected]>
Date: Thu, 16 Feb 2012 09:41:52 +0800
Subject: usb: Fix build error due to dma_mask is not at pdev_archdata at ARM

When build i.mx platform with imx_v6_v7_defconfig, and after adding
USB Gadget support, it has below build error:

CC      drivers/usb/host/fsl-mph-dr-of.o
drivers/usb/host/fsl-mph-dr-of.c: In function 'fsl_usb2_device_register':
drivers/usb/host/fsl-mph-dr-of.c:97: error: 'struct pdev_archdata'
has no member named 'dma_mask'

It has discussed at: http://www.spinics.net/lists/linux-usb/msg57302.html

For PowerPC, there is dma_mask at struct pdev_archdata, but there is
no dma_mask at struct pdev_archdata for ARM. The pdev_archdata is
related to specific platform, it should NOT be accessed by
cross platform drivers, like USB.

The code for pdev_archdata should be useless, as for PowerPC,
it has already gotten the value for pdev->dev.dma_mask at function
arch_setup_pdev_archdata of arch/powerpc/kernel/setup-common.c.

Tested-by: Ramneek Mehresh <[email protected]>
Signed-off-by: Peter Chen <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/usb/host/fsl-mph-dr-of.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index 7916e56..ab333ac 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -94,7 +94,6 @@ struct platform_device * __devinit fsl_usb2_device_register(
        pdev->dev.parent = &ofdev->dev;
 
        pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask;
-       pdev->dev.dma_mask = &pdev->archdata.dma_mask;
        *pdev->dev.dma_mask = *ofdev->dev.dma_mask;
 
        retval = platform_device_add_data(pdev, pdata, sizeof(*pdata));
-- 
1.7.3.4
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