linux-kernel - [PATCH v2 17/25] usb: gadget: f

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Date:   Mon, 18 Jul 2022 18:27:51 -0700
From:   Thinh Nguyen <Thinh.Nguyen@...opsys.com>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Dmitry Bogdanov <d.bogdanov@...ro.com>
Cc:     linux-scsi@...r.kernel.org, target-devel@...r.kernel.org
Subject: [PATCH v2 17/25] usb: gadget: f_tcm: Handle abort command

Implemented aborted_task to cancel outstanding request.

Signed-off-by: Thinh Nguyen <Thinh.Nguyen@...opsys.com>
---
 Changes in v2:
 - None

 drivers/usb/gadget/function/f_tcm.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c
index d7318c84af98..8f7eb7045e64 100644
--- a/drivers/usb/gadget/function/f_tcm.c
+++ b/drivers/usb/gadget/function/f_tcm.c
@@ -1278,6 +1278,22 @@ static void usbg_queue_tm_rsp(struct se_cmd *se_cmd)
 
 static void usbg_aborted_task(struct se_cmd *se_cmd)
 {
+	struct usbg_cmd *cmd = container_of(se_cmd, struct usbg_cmd, se_cmd);
+	struct f_uas *fu = cmd->fu;
+	struct uas_stream *stream = cmd->stream;
+	int ret = 0;
+
+	if (stream->req_out->status == -EINPROGRESS)
+		ret = usb_ep_dequeue(fu->ep_out, stream->req_out);
+	else if (stream->req_in->status == -EINPROGRESS)
+		ret = usb_ep_dequeue(fu->ep_in, stream->req_in);
+	else if (stream->req_status->status == -EINPROGRESS)
+		ret = usb_ep_dequeue(fu->ep_status, stream->req_status);
+
+	if (ret)
+		pr_err("Unable to dequeue se_cmd out %p\n", se_cmd);
+
+	cmd->state = UASP_QUEUE_COMMAND;
 }
 
 static const char *usbg_check_wwn(const char *name)
-- 
2.28.0