From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Mathias Nyman <mathias.nyman@intel.com>,
Alan Stern <stern@rowland.harvard.edu>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
chris.chiu@canonical.com
Subject: Re: [RFC PATCH 1/5] usb: core: hcd: Modularize HCD stop configuration in usb_stop_hcd()
Date: Tue, 24 Aug 2021 15:06:44 +0200 [thread overview]
Message-ID: <YSTu5KCQV242XuXV@kroah.com> (raw)
In-Reply-To: <20210824105302.25382-2-kishon@ti.com>
On Tue, Aug 24, 2021 at 04:22:58PM +0530, Kishon Vijay Abraham I wrote:
> No functional change. Since configuration to stop HCD is invoked from
> multiple places, group all of them in usb_stop_hcd().
>
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
> drivers/usb/core/hcd.c | 42 +++++++++++++++++++++++++-----------------
> 1 file changed, 25 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
> index 0f8b7c93310e..c036ba5311b3 100644
> --- a/drivers/usb/core/hcd.c
> +++ b/drivers/usb/core/hcd.c
> @@ -2760,6 +2760,29 @@ static void usb_put_invalidate_rhdev(struct usb_hcd *hcd)
> usb_put_dev(rhdev);
> }
>
> +/**
> + * usb_stop_hcd - Halt the HCD
> + * @hcd: the usb_hcd that has to be halted
> + *
> + * Stop the timer and invoke ->stop() callback on the HCD
> + */
> +static void usb_stop_hcd(struct usb_hcd *hcd)
> +{
> + if (!hcd)
> + return;
That's impossible to hit, so no need to check for it, right?
thanks,
greg k-h
next prev parent reply other threads:[~2021-08-24 13:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-24 10:52 [RFC PATCH 0/5] Fix cold plugged USB device on certain PCIe USB cards Kishon Vijay Abraham I
2021-08-24 10:52 ` [RFC PATCH 1/5] usb: core: hcd: Modularize HCD stop configuration in usb_stop_hcd() Kishon Vijay Abraham I
2021-08-24 13:06 ` Greg Kroah-Hartman [this message]
2021-08-24 15:18 ` Kishon Vijay Abraham I
2021-08-26 11:14 ` Greg Kroah-Hartman
2021-08-24 10:52 ` [RFC PATCH 2/5] usb: core: hcd: Let usb_add_hcd() indicate if roothub has to be registered Kishon Vijay Abraham I
2021-08-24 13:08 ` Greg Kroah-Hartman
2021-08-24 14:56 ` Alan Stern
2021-08-24 10:53 ` [RFC PATCH 3/5] usb: core: hcd: Add support for registering secondary RH along with primary HCD Kishon Vijay Abraham I
2021-08-24 11:55 ` Mathias Nyman
2021-08-24 10:53 ` [RFC PATCH 4/5] usb: core: hcd-pci: Let usb_hcd_pci_probe() indicate if RH has to be registered Kishon Vijay Abraham I
2021-08-24 13:09 ` Greg Kroah-Hartman
2021-08-24 10:53 ` [RFC PATCH 5/5] xhci-pci: Use flag to not register roothub while adding primary HCD Kishon Vijay Abraham I
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