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Message-Id: <1272985381-4454-1-git-send-email-Dinh.Nguyen@freescale.com> Date: Tue, 4 May 2010 10:03:01 -0500 From: Dinh.Nguyen@...escale.com To: linux-kernel@...r.kernel.org Cc: linux-arm-kernel@...ts.infradead.org, linux@....linux.org.uk, linux-usb@...r.kernel.org, Dinh Nguyen <Dinh.Nguyen@...escale.com> Subject: [PATCH 2.6.34-rc6] mxc: gadget: Fix bitfield for calculating maximum packet size From: Dinh Nguyen <Dinh.Nguyen@...escale.com> The max packet length bit mask used for isochronous endpoints should be 0x7FF instead of 0x8FF. 0x8FF will actually clear higher-order bits in the max packet length field. This patch applies to 2.6.34-rc6. Signed-off-by: Dinh Nguyen <Dinh.Nguyen@...escale.com> --- drivers/usb/gadget/fsl_udc_core.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index fa3d142..08a9a62 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -489,7 +489,7 @@ static int fsl_ep_enable(struct usb_ep *_ep, case USB_ENDPOINT_XFER_ISOC: /* Calculate transactions needed for high bandwidth iso */ mult = (unsigned char)(1 + ((max >> 11) & 0x03)); - max = max & 0x8ff; /* bit 0~10 */ + max = max & 0x7ff; /* bit 0~10 */ /* 3 transactions at most */ if (mult > 3) goto en_done; -- 1.6.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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