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From: Joerg Roedel <joro@8bytes.org>
To: Bjorn Helgaas <bhelgaas@google.com>,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>,
	Len Brown <lenb@kernel.org>
Cc: linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org,
	linux-kernel@vger.kernel.org, Joerg Roedel <jroedel@suse.de>,
	Bjorn Helgaas <helgass@kernel.org>
Subject: [PATCH v2 2/2] PCI/ACPI: Remove OSC_PCI_SUPPORT_MASKS and OSC_PCI_CONTROL_MASKS
Date: Wed, 14 Jul 2021 10:55:12 +0200	[thread overview]
Message-ID: <20210714085512.2176-3-joro@8bytes.org> (raw)
In-Reply-To: <20210714085512.2176-1-joro@8bytes.org>

From: Joerg Roedel <jroedel@suse.de>

These masks are only used internally in the PCI Host Bridge _OSC
negotiation code, which already makes sure nothing outside of these
masks is set. Remove the masks and simplify the code.

Suggested-by: Bjorn Helgaas <helgass@kernel.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 drivers/acpi/pci_root.c | 4 +---
 include/linux/acpi.h    | 2 --
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index c703832b7f7f..0d147c682929 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -199,9 +199,7 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root,
 	acpi_status status;
 	u32 result, capbuf[3];
 
-	support &= OSC_PCI_SUPPORT_MASKS;
 	support |= root->osc_support_set;
-	*control &= OSC_PCI_CONTROL_MASKS;
 
 	capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE;
 	capbuf[OSC_SUPPORT_DWORD] = support;
@@ -347,7 +345,7 @@ static acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32
 	if (!mask)
 		return AE_BAD_PARAMETER;
 
-	ctrl = *mask & OSC_PCI_CONTROL_MASKS;
+	ctrl = *mask;
 	if ((ctrl & req) != req)
 		return AE_TYPE;
 
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 72e4f7fd268c..c6dba5f21384 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -577,7 +577,6 @@ extern u32 osc_sb_native_usb4_control;
 #define OSC_PCI_MSI_SUPPORT			0x00000010
 #define OSC_PCI_EDR_SUPPORT			0x00000080
 #define OSC_PCI_HPX_TYPE_3_SUPPORT		0x00000100
-#define OSC_PCI_SUPPORT_MASKS			0x0000019f
 
 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL	0x00000001
@@ -587,7 +586,6 @@ extern u32 osc_sb_native_usb4_control;
 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL	0x00000010
 #define OSC_PCI_EXPRESS_LTR_CONTROL		0x00000020
 #define OSC_PCI_EXPRESS_DPC_CONTROL		0x00000080
-#define OSC_PCI_CONTROL_MASKS			0x000000bf
 
 #define ACPI_GSB_ACCESS_ATTRIB_QUICK		0x00000002
 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
-- 
2.31.1


      parent reply	other threads:[~2021-07-14  8:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-14  8:55 [PATCH v2 0/2] PCI/ACPI: Simplify PCIe _OSC feature negotiation Joerg Roedel
2021-07-14  8:55 ` [PATCH v2 1/2] PCI/APCI: Move acpi_pci_osc_support() check to negotiation phase Joerg Roedel
2021-07-14 12:04   ` Rafael J. Wysocki
2021-07-15  7:34     ` Joerg Roedel
2021-07-14  8:55 ` Joerg Roedel [this message]

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