linux-kernel - [PATCH v2 6/9] PCI: Rename is_thunderbolt to is

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Date:   Fri, 3 Nov 2023 14:07:55 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     Karol Herbst <kherbst@...hat.com>, Lyude Paul <lyude@...hat.com>,
        "Alex Deucher" <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "Hans de Goede" <hdegoede@...hat.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Lukas Wunner <lukas@...ner.de>
CC:     Danilo Krummrich <dakr@...hat.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Xinhui Pan <Xinhui.Pan@....com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Mark Gross <markgross@...nel.org>,
        "Andreas Noever" <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>,
        Pali Rohár <pali@...nel.org>,
        Marek Behún <kabel@...nel.org>,
        "Maciej W . Rozycki" <macro@...am.me.uk>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Mario Limonciello <mario.limonciello@....com>,
        "open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS" 
        <dri-devel@...ts.freedesktop.org>,
        "open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS" 
        <nouveau@...ts.freedesktop.org>,
        "open list" <linux-kernel@...r.kernel.org>,
        "open list:RADEON and AMDGPU DRM DRIVERS" 
        <amd-gfx@...ts.freedesktop.org>,
        "open list:PCI SUBSYSTEM" <linux-pci@...r.kernel.org>,
        "open list:ACPI" <linux-acpi@...r.kernel.org>,
        "open list:X86 PLATFORM DRIVERS" 
        <platform-driver-x86@...r.kernel.org>,
        "open list:THUNDERBOLT DRIVER" <linux-usb@...r.kernel.org>
Subject: [PATCH v2 6/9] PCI: Rename is_thunderbolt to is_tunneled

The `is_thunderbolt` bit has been used to indicate that a PCIe device
contained the Intel VSEC which is used by various parts of the kernel
to change behavior. To later allow usage with USB4 controllers as well,
rename this to `is_tunneled`.

Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
 drivers/pci/pci.c                 | 2 +-
 drivers/pci/probe.c               | 2 +-
 drivers/platform/x86/apple-gmux.c | 2 +-
 include/linux/pci.h               | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 59c01d68c6d5..d9aa5a39f585 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3032,7 +3032,7 @@ bool pci_bridge_d3_possible(struct pci_dev *bridge)
 			return true;
 
 		/* Even the oldest 2010 Thunderbolt controller supports D3. */
-		if (bridge->is_thunderbolt)
+		if (bridge->is_tunneled)
 			return true;
 
 		/* Platform might know better if the bridge supports D3 */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 795534589b98..518413d15402 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1597,7 +1597,7 @@ static void set_pcie_thunderbolt(struct pci_dev *dev)
 	/* Is the device part of a Thunderbolt controller? */
 	vsec = pci_find_vsec_capability(dev, PCI_VENDOR_ID_INTEL, PCI_VSEC_ID_INTEL_TBT);
 	if (vsec)
-		dev->is_thunderbolt = 1;
+		dev->is_tunneled = 1;
 }
 
 static void set_pcie_untrusted(struct pci_dev *dev)
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 1417e230edbd..20315aa4463a 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -774,7 +774,7 @@ static int gmux_resume(struct device *dev)
 
 static int is_thunderbolt(struct device *dev, void *data)
 {
-	return to_pci_dev(dev)->is_thunderbolt;
+	return to_pci_dev(dev)->is_tunneled;
 }
 
 static int gmux_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 439c2dac8a3e..b1724f25fb02 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -440,7 +440,7 @@ struct pci_dev {
 	unsigned int	is_virtfn:1;
 	unsigned int	is_hotplug_bridge:1;
 	unsigned int	shpc_managed:1;		/* SHPC owned by shpchp */
-	unsigned int	is_thunderbolt:1;	/* Thunderbolt controller */
+	unsigned int	is_tunneled:1;		/* Tunneled TBT or USB4 link */
 	unsigned int	no_command_complete:1;	/* No command completion */
 	/*
 	 * Devices marked being untrusted are the ones that can potentially
-- 
2.34.1