Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Mon, 29 May 2023 23:36:59 +0000
In-Reply-To: <20230529233700.3706661-1-badhri@google.com>
Mime-Version: 1.0
References: <20230529233700.3706661-1-badhri@google.com>
Message-ID: <20230529233700.3706661-2-badhri@google.com>
Subject: [PATCH v3 2/3] Revert "Revert "usb: gadget: udc: core: Prevent
 redundant calls to pullup""
From:   Badhri Jagan Sridharan <badhri@google.com>
To:     gregkh@linuxfoundation.org, stern@rowland.harvard.edu,
        colin.i.king@gmail.com, xuetao09@huawei.com,
        quic_eserrao@quicinc.com, water.zhangjiantao@huawei.com,
        peter.chen@freescale.com, balbi@ti.com, francesco@dolcini.it,
        alistair@alistair23.me, stephan@gerhold.net, bagasdotme@gmail.com,
        luca@z3ntu.xyz
Cc:     linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
        stable@vger.kernel.org, Badhri Jagan Sridharan <badhri@google.com>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

This reverts commit 5e1617210aede9f1b91bb9819c93097b6da481f9.

The regression reported in
https://lore.kernel.org/all/ZF4bMptC3Lf2Hnee@gerhold.net/ is being
fixed in
commit 7d7863db7cc0 ("usb: gadget: udc: core: Offload usb_udc_vbus_handler processing").
Hence reverting the revert.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
---
 drivers/usb/gadget/udc/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 583c339876ab..4641153e9706 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -703,6 +703,9 @@ static int usb_gadget_connect_locked(struct usb_gadget *gadget)
 		goto out;
 	}
 
+	if (gadget->connected)
+		goto out;
+
 	if (gadget->deactivated || !gadget->udc->started) {
 		/*
 		 * If gadget is deactivated we only save new state.
-- 
2.41.0.rc0.172.g3f132b7071-goog