From: Bjorn Helgaas <helgaas@kernel.org>
To: Mario Limonciello <mario.limonciello@amd.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
"open list:PCI SUBSYSTEM" <linux-pci@vger.kernel.org>,
"open list:THUNDERBOLT DRIVER" <linux-usb@vger.kernel.org>,
"open list:RADEON and AMDGPU DRM DRIVERS"
<amd-gfx@lists.freedesktop.org>,
"open list:DRM DRIVERS" <dri-devel@lists.freedesktop.org>,
"open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS"
<nouveau@lists.freedesktop.org>,
Hans de Goede <hdegoede@redhat.com>,
Michael Jamet <michael.jamet@intel.com>,
Yehezkel Bernat <YehezkelShB@gmail.com>,
Alexander.Deucher@amd.com,
Andreas Noever <andreas.noever@gmail.com>,
Macpaul Lin <macpaul.lin@mediatek.com>
Subject: Re: [PATCH v3 06/12] PCI: Explicitly mark USB4 NHI devices as removable
Date: Fri, 11 Feb 2022 15:58:26 -0600 [thread overview]
Message-ID: <20220211215826.GA737975@bhelgaas> (raw)
In-Reply-To: <20220211193250.1904843-7-mario.limonciello@amd.com>
On Fri, Feb 11, 2022 at 01:32:44PM -0600, Mario Limonciello wrote:
> USB4 class devices are also removable like Intel Thunderbolt devices.
Spec reference, please.
> Drivers of downstream devices use this information to declare functional
> differences in how the drivers perform by knowing that they are connected
> to an upstream TBT/USB4 port.
>
> Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
> ---
> drivers/pci/probe.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
> index 2693211d31cf..67ca33188cba 100644
> --- a/drivers/pci/probe.c
> +++ b/drivers/pci/probe.c
> @@ -1610,6 +1610,7 @@ static void pci_set_removable(struct pci_dev *dev)
> * exposed as "removable" to userspace.
> */
> if (vsec ||
> + dev->class == PCI_CLASS_SERIAL_USB_USB4 ||
> pci_acpi_is_usb4(dev) ||
> (parent &&
> (parent->external_facing || dev_is_removable(&parent->dev))))
> --
> 2.34.1
>
next prev parent reply other threads:[~2022-02-11 21:58 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-11 19:32 [PATCH v3 00/12] Overhaul `is_thunderbolt` Mario Limonciello
2022-02-11 19:32 ` [PATCH v3 01/12] thunderbolt: move definition of PCI_CLASS_SERIAL_USB_USB4 Mario Limonciello
2022-02-11 21:02 ` Bjorn Helgaas
2022-02-11 19:32 ` [PATCH v3 02/12] PCI: Move `is_thunderbolt` check for lack of command completed to a quirk Mario Limonciello
2022-02-11 21:20 ` Bjorn Helgaas
2022-02-11 19:32 ` [PATCH v3 03/12] PCI: Move check for old Apple Thunderbolt controllers into " Mario Limonciello
2022-02-11 21:35 ` Bjorn Helgaas
2022-02-11 22:06 ` Limonciello, Mario
2022-02-14 7:15 ` Mika Westerberg
2022-02-13 9:19 ` Lukas Wunner
2022-02-13 9:21 ` Lukas Wunner
2022-02-14 7:23 ` Mika Westerberg
2022-02-11 19:32 ` [PATCH v3 04/12] PCI: Drop the `is_thunderbolt` attribute from PCI core Mario Limonciello
2022-02-13 8:20 ` Lukas Wunner
2022-02-13 17:26 ` Limonciello, Mario
2022-02-14 7:27 ` Mika Westerberg
2022-02-11 19:32 ` [PATCH v3 05/12] PCI: Detect root port of internal USB4 devices by `usb4-host-interface` Mario Limonciello
2022-02-11 21:45 ` Bjorn Helgaas
2022-02-14 7:34 ` Mika Westerberg
2022-02-14 8:52 ` Lukas Wunner
2022-02-14 10:56 ` Mika Westerberg
2022-02-14 11:08 ` Mika Westerberg
2022-02-14 11:11 ` Mika Westerberg
2022-02-17 20:40 ` Bjorn Helgaas
2022-02-11 19:32 ` [PATCH v3 06/12] PCI: Explicitly mark USB4 NHI devices as removable Mario Limonciello
2022-02-11 21:58 ` Bjorn Helgaas [this message]
2022-02-11 19:32 ` [PATCH v3 07/12] PCI: Set ports for discrete USB4 controllers appropriately Mario Limonciello
2022-02-11 22:10 ` Bjorn Helgaas
2022-02-11 19:32 ` [PATCH v3 08/12] drm/amd: drop the use of `pci_is_thunderbolt_attached` Mario Limonciello
2022-02-11 19:32 ` [PATCH v3 09/12] drm/nouveau: " Mario Limonciello
2022-02-11 19:32 ` [PATCH v3 10/12] drm/radeon: " Mario Limonciello
2022-02-11 19:32 ` [PATCH v3 11/12] platform/x86: amd-gmux: " Mario Limonciello
2022-02-11 19:32 ` [PATCH v3 12/12] PCI: drop `pci_is_thunderbolt_attached` Mario Limonciello
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