linux-kernel - [PATCH v3 7/7] usb: gadget: remove unnecessary AND operation when get ep maxp

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Date:   Fri, 13 Aug 2021 14:30:53 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>
CC:     Pawel Laszczak <pawell@...ence.com>,
        Al Cooper <alcooperx@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Yang Yingliang <yangyingliang@...wei.com>,
        Rikard Falkeborn <rikard.falkeborn@...il.com>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <bcm-kernel-feedback-list@...adcom.com>,
        <linux-tegra@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        Eddie Hung <eddie.hung@...iatek.com>,
        Sergei Shtylyov <sergei.shtylyov@...il.com>
Subject: [PATCH v3 7/7] usb: gadget: remove unnecessary AND operation when get ep maxp

usb_endpoint_maxp() already returns actual max packet size, no need
to AND 0x7ff.

Acked-by: Felipe Balbi <balbi@...nel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
---
v3: fix typo suggested by Sergei
v2: add acked-by felipe
---
 include/linux/usb/gadget.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 75c7538e350a..f181c84310b6 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -491,7 +491,7 @@ extern char *usb_get_gadget_udc_name(void);
  */
 static inline size_t usb_ep_align(struct usb_ep *ep, size_t len)
 {
-	int max_packet_size = (size_t)usb_endpoint_maxp(ep->desc) & 0x7ff;
+	int max_packet_size = (size_t)usb_endpoint_maxp(ep->desc);
 
 	return round_up(len, max_packet_size);
 }
-- 
2.18.0