linux-kernel - [PATCH 1/6] x86: Use PCI_HEADER_TYPE

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Message-Id: <20231124090919.23687-1-ilpo.jarvinen@linux.intel.com>
Date:   Fri, 24 Nov 2023 11:09:13 +0200
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Cc:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 1/6] x86: Use PCI_HEADER_TYPE_* instead of literals

Replace 0x7f and 0x80 literals with PCI_HEADER_TYPE_* defines.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 arch/x86/kernel/aperture_64.c  | 3 +--
 arch/x86/kernel/early-quirks.c | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 4feaa670d578..89c0c8a3fc7e 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -259,10 +259,9 @@ static u32 __init search_agp_bridge(u32 *order, int *valid_agp)
 							order);
 				}
 
-				/* No multi-function device? */
 				type = read_pci_config_byte(bus, slot, func,
 							       PCI_HEADER_TYPE);
-				if (!(type & 0x80))
+				if (!(type & PCI_HEADER_TYPE_MFD))
 					break;
 			}
 		}
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index a6c1867fc7aa..59f4aefc6bc1 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -779,13 +779,13 @@ static int __init check_dev_quirk(int num, int slot, int func)
 	type = read_pci_config_byte(num, slot, func,
 				    PCI_HEADER_TYPE);
 
-	if ((type & 0x7f) == PCI_HEADER_TYPE_BRIDGE) {
+	if ((type & PCI_HEADER_TYPE_MASK) == PCI_HEADER_TYPE_BRIDGE) {
 		sec = read_pci_config_byte(num, slot, func, PCI_SECONDARY_BUS);
 		if (sec > num)
 			early_pci_scan_bus(sec);
 	}
 
-	if (!(type & 0x80))
+	if (!(type & PCI_HEADER_TYPE_MFD))
 		return -1;
 
 	return 0;
-- 
2.30.2