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[92.40.168.8]) by smtp.gmail.com with ESMTPSA id i12sm26546110wrw.64.2020.03.04.11.41.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 Mar 2020 11:41:57 -0800 (PST) To: Greg Kroah-Hartman Cc: "devel@driverdev.osuosl.org" , linux-wireless@vger.kernel.org From: Malcolm Priestley Subject: [PATCH 1/2] staging: vt6656: Remove vnt_interrupt_buffer in_use flag. Message-ID: <69585034-4318-4bec-7d9b-f64a167df237@gmail.com> Date: Wed, 4 Mar 2020 19:41:55 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 Content-Language: en-US Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org mac80211 is the only user of in_use to start it and should not be true when so. So internal toggling of this variable is not relevant. Signed-off-by: Malcolm Priestley --- drivers/staging/vt6656/device.h | 1 - drivers/staging/vt6656/usbpipe.c | 28 +++------------------------- 2 files changed, 3 insertions(+), 26 deletions(-) diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h index 5c9991415432..e94df4685b25 100644 --- a/drivers/staging/vt6656/device.h +++ b/drivers/staging/vt6656/device.h @@ -253,7 +253,6 @@ struct vnt_usb_send_context { */ struct vnt_interrupt_buffer { u8 *data_buf; - bool in_use; }; /* flags for options */ diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c index b9e79755e7fa..fd2c9d9d6eb4 100644 --- a/drivers/staging/vt6656/usbpipe.c +++ b/drivers/staging/vt6656/usbpipe.c @@ -221,8 +221,6 @@ static void vnt_int_process_data(struct vnt_private *priv) low_stats->dot11ACKFailureCount += int_data->ack_fail; low_stats->dot11FCSErrorCount += int_data->fcs_err; } - - priv->int_buf.in_use = false; } static void vnt_start_interrupt_urb_complete(struct urb *urb) @@ -237,25 +235,19 @@ static void vnt_start_interrupt_urb_complete(struct urb *urb) case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: - priv->int_buf.in_use = false; return; default: break; } - if (status) { - priv->int_buf.in_use = false; - + if (status) dev_dbg(&priv->usb->dev, "%s status = %d\n", __func__, status); - } else { + else vnt_int_process_data(priv); - } status = usb_submit_urb(priv->interrupt_urb, GFP_ATOMIC); if (status) dev_dbg(&priv->usb->dev, "Submit int URB failed %d\n", status); - else - priv->int_buf.in_use = true; } int vnt_start_interrupt_urb(struct vnt_private *priv) @@ -264,13 +256,6 @@ int vnt_start_interrupt_urb(struct vnt_private *priv) dev_dbg(&priv->usb->dev, "---->Interrupt Polling Thread\n"); - if (priv->int_buf.in_use) { - ret = -EBUSY; - goto err; - } - - priv->int_buf.in_use = true; - usb_fill_int_urb(priv->interrupt_urb, priv->usb, usb_rcvintpipe(priv->usb, 1), @@ -281,16 +266,9 @@ int vnt_start_interrupt_urb(struct vnt_private *priv) priv->int_interval); ret = usb_submit_urb(priv->interrupt_urb, GFP_ATOMIC); - if (ret) { + if (ret) dev_dbg(&priv->usb->dev, "Submit int URB failed %d\n", ret); - goto err_submit; - } - - return 0; -err_submit: - priv->int_buf.in_use = false; -err: return ret; }