From: =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= <kw@linux.com>
Date: Tue, 26 May 2020 21:39:05 +0000
Subject: PCI: Rename _DSM constants to align with spec
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Patch-mainline: v5.8-rc1
Git-commit: 3910ebaca8eae0cb9d41a20efe1bcb375ec64dfb
References: jsc#SLE-16407

Rename PCI-related _DSM constants to align them with the PCI Firmware Spec,
r3.2, sec 4.6.  No functional change intended.

Link: https://lore.kernel.org/r/20200526213905.2479381-1-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Lee, Chun-Yi <jlee@suse.com>
---
 drivers/acpi/pci_root.c  |    2 +-
 drivers/pci/pci-acpi.c   |    4 ++--
 drivers/pci/pci-label.c  |    4 ++--
 include/linux/pci-acpi.h |   10 ++++++----
 4 files changed, 11 insertions(+), 9 deletions(-)

--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -933,7 +933,7 @@ struct pci_bus *acpi_pci_root_create(str
 	 * assignments made by firmware for this host bridge.
 	 */
 	obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 1,
-	                        IGNORE_PCI_BOOT_CONFIG_DSM, NULL);
+				DSM_PCI_PRESERVE_BOOT_CONFIG, NULL);
 	if (obj && obj->type == ACPI_TYPE_INTEGER && obj->integer.value == 0)
 		host_bridge->preserve_config = 1;
 	ACPI_FREE(obj);
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -781,7 +781,7 @@ void acpi_pci_add_bus(struct pci_bus *bu
 		return;
 
 	obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 3,
-				RESET_DELAY_DSM, NULL);
+				DSM_PCI_POWER_ON_RESET_DELAY, NULL);
 	if (!obj)
 		return;
 
@@ -846,7 +846,7 @@ static void pci_acpi_optimize_delay(stru
 		pdev->d3cold_delay = 0;
 
 	obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_guid, 3,
-				FUNCTION_DELAY_DSM, NULL);
+				DSM_PCI_DEVICE_READINESS_DURATIONS, NULL);
 	if (!obj)
 		return;
 
--- a/drivers/pci/pci-label.c
+++ b/drivers/pci/pci-label.c
@@ -178,7 +178,7 @@ static int dsm_get_label(struct device *
 		return -1;
 
 	obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_guid, 0x2,
-				DEVICE_LABEL_DSM, NULL);
+				DSM_PCI_DEVICE_NAME, NULL);
 	if (!obj)
 		return -1;
 
@@ -218,7 +218,7 @@ static bool device_has_dsm(struct device
 		return false;
 
 	return !!acpi_check_dsm(handle, &pci_acpi_dsm_guid, 0x2,
-				1 << DEVICE_LABEL_DSM);
+				1 << DSM_PCI_DEVICE_NAME);
 }
 
 static umode_t acpi_index_string_exist(struct kobject *kobj,
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -107,10 +107,12 @@ static inline void acpiphp_check_host_br
 #endif
 
 extern const guid_t pci_acpi_dsm_guid;
-#define IGNORE_PCI_BOOT_CONFIG_DSM	0x05
-#define DEVICE_LABEL_DSM		0x07
-#define RESET_DELAY_DSM			0x08
-#define FUNCTION_DELAY_DSM		0x09
+
+/* _DSM Definitions for PCI */
+#define DSM_PCI_PRESERVE_BOOT_CONFIG		0x05
+#define DSM_PCI_DEVICE_NAME			0x07
+#define DSM_PCI_POWER_ON_RESET_DELAY		0x08
+#define DSM_PCI_DEVICE_READINESS_DURATIONS	0x09
 
 #ifdef CONFIG_PCIE_EDR
 void pci_acpi_add_edr_notifier(struct pci_dev *pdev);