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emacs 27.2 From: Felipe Balbi To: Chunfeng Yun Cc: Greg Kroah-Hartman , Pawel Laszczak , Al Cooper , Thierry Reding , Jonathan Hunter , Matthias Brugger , Christophe JAILLET , Yang Yingliang , Rikard Falkeborn , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Eddie Hung Subject: Re: [PATCH 3/6] usb: cdnsp: fix the wrong mult value for HS isoc or intr Date: Thu, 12 Aug 2021 09:51:03 +0300 In-reply-to: <1628739182-30089-3-git-send-email-chunfeng.yun@mediatek.com> Message-ID: <87mtpnyx3g.fsf@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210811_235137_204374_E56301A5 X-CRM114-Status: GOOD ( 13.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Chunfeng Yun writes: > usb_endpoint_maxp() only returns the bit[10:0] of wMaxPacketSize > of endpoint descriptor, not include bit[12:11] anymore, so use > usb_endpoint_maxp_mult() instead. > > Signed-off-by: Chunfeng Yun > --- > drivers/usb/cdns3/cdnsp-mem.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/cdns3/cdnsp-mem.c b/drivers/usb/cdns3/cdnsp-mem.c > index a47948a1623f..ad9aee3f1e39 100644 > --- a/drivers/usb/cdns3/cdnsp-mem.c > +++ b/drivers/usb/cdns3/cdnsp-mem.c > @@ -882,7 +882,7 @@ static u32 cdnsp_get_endpoint_max_burst(struct usb_gadget *g, > if (g->speed == USB_SPEED_HIGH && > (usb_endpoint_xfer_isoc(pep->endpoint.desc) || > usb_endpoint_xfer_int(pep->endpoint.desc))) > - return (usb_endpoint_maxp(pep->endpoint.desc) & 0x1800) >> 11; > + return usb_endpoint_maxp_mult(pep->endpoint.desc) - 1; this looks like a bugfix. Do we need to Cc stable here? In any case: Acked-by: Felipe Balbi -- balbi _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel