From: Greg KH <gregkh@linuxfoundation.org>
To: Guan-Yu Lin <guanyulin@google.com>
Cc: Thinh.Nguyen@synopsys.com, mathias.nyman@intel.com,
stern@rowland.harvard.edu, elder@kernel.org, oneukum@suse.com,
yajun.deng@linux.dev, dianders@chromium.org, kekrby@gmail.com,
perex@perex.cz, tiwai@suse.com, tj@kernel.org,
stanley_chang@realtek.com, andreyknvl@gmail.com,
christophe.jaillet@wanadoo.fr, quic_jjohnson@quicinc.com,
ricardo@marliere.net, grundler@chromium.org,
niko.mauno@vaisala.com, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org,
badhri@google.com, albertccwang@google.com,
quic_wcheng@quicinc.com, pumahsu@google.com
Subject: Re: [PATCH v4 4/5] xhci: sideband: add api to trace sideband usage
Date: Wed, 9 Oct 2024 14:47:53 +0200 [thread overview]
Message-ID: <2024100935-resonate-aneurism-b330@gregkh> (raw)
In-Reply-To: <20241009054429.3970438-5-guanyulin@google.com>
On Wed, Oct 09, 2024 at 05:42:58AM +0000, Guan-Yu Lin wrote:
> --- a/include/linux/usb/hcd.h
> +++ b/include/linux/usb/hcd.h
> @@ -84,6 +84,10 @@ struct usb_hcd {
> struct urb *status_urb; /* the current status urb */
> #ifdef CONFIG_PM
> struct work_struct wakeup_work; /* for remote wakeup */
> +#ifdef CONFIG_USB_XHCI_SIDEBAND
> + /* Number of active sideband accessing the host controller. */
> + atomic_t sb_usage_count;
It's a reference count, use refcount_t please.
next prev parent reply other threads:[~2024-10-09 12:48 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-09 5:42 [PATCH v4 0/5] Support system sleep with offloaded usb transfers Guan-Yu Lin
2024-10-09 5:42 ` [PATCH v4 1/5] usb: dwc3: separate dev_pm_ops for each pm_event Guan-Yu Lin
2024-10-09 12:45 ` Greg KH
2024-10-10 4:12 ` Guan-Yu Lin
2024-10-09 5:42 ` [PATCH v4 2/5] usb: xhci-plat: " Guan-Yu Lin
2024-10-09 5:42 ` [PATCH v4 3/5] usb: add apis for sideband uasge tracking Guan-Yu Lin
2024-10-09 7:33 ` Amadeusz Sławiński
2024-10-09 11:36 ` Guan-Yu Lin
2024-10-09 12:44 ` Greg KH
2024-10-10 5:30 ` Guan-Yu Lin
2024-10-10 6:33 ` Greg KH
2024-10-10 16:14 ` Guan-Yu Lin
2024-10-11 4:30 ` Greg KH
2024-10-11 7:33 ` Guan-Yu Lin
2024-10-09 5:42 ` [PATCH v4 4/5] xhci: sideband: add api to trace sideband usage Guan-Yu Lin
2024-10-09 12:47 ` Greg KH [this message]
2024-10-10 4:16 ` Guan-Yu Lin
2024-10-09 5:42 ` [PATCH v4 5/5] usb: host: enable sideband transfer during system sleep Guan-Yu Lin
2024-10-09 12:47 ` Greg KH
2024-10-11 7:34 ` Guan-Yu Lin
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