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Ilpo Järvinen 0d481ff35c x86/pci: Clean up open-coded PCIBIOS return code mangling 
Per PCI Firmware spec r3.3, sec 2.5.2, 2.6.2, and 2.7, the return code for
these PCI BIOS interfaces is in 8 bits of the EAX register.  Previously it
was extracted by open-coded masks and shifting.

Name the return code bits with a #define and add pcibios_get_return_code()
to extract the return code to improve code readability. In addition,
replace zero test with PCIBIOS_SUCCESSFUL.

No functional changes intended.

Link: https://lore.kernel.org/r/20231124085924.13830-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2023-12-01 16:50:59 -06:00
..
acpi.c
x86/PCI: Use pr_info() when possible
2022-12-10 10:33:18 -06:00
amd_bus.c
range.h: Move resource API and constant to respective files
2023-08-18 10:19:00 -07:00
broadcom_bus.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
bus_numa.c
range.h: Move resource API and constant to respective files
2023-08-18 10:19:00 -07:00
bus_numa.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ce4100.c
x86/pci: Mark local functions as 'static'
2023-05-18 11:56:10 -07:00
common.c
x86/PCI: Add kernel cmdline options to use/ignore E820 reserved regions
2022-05-19 14:26:55 -05:00
direct.c
x86/pci: Simplify code by using the new dmi_get_bios_year() helper
2018-02-23 08:20:30 +01:00
early.c
PCI: Make early dump functionality generic
2018-06-29 20:06:07 -05:00
fixup.c
x86/PCI: Avoid PME from D3hot/D3cold for AMD Rembrandt and Phoenix USB4
2023-10-06 09:09:47 -05:00
i386.c
x86/PCI: Make a kernel-doc comment a normal one
2020-11-27 13:43:09 +01:00
init.c
x86/pci: Create PCI/MSI irqdomain after x86_init.pci.arch_init()
2021-02-10 22:06:47 +01:00
intel_mid_pci.c
x86/PCI: Describe @reg for type1_access_ok()
2021-02-15 20:10:30 +01:00
irq.c
x86/PCI: Use struct_size() in pirq_convert_irt_table()
2023-07-13 11:33:20 -05:00
legacy.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
Makefile
x86/PCI: Replace deprecated EXTRA_CFLAGS with ccflags-y
2019-11-21 07:49:27 -06:00
mmconfig_32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 387
2019-06-05 17:37:11 +02:00
mmconfig_64.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
mmconfig-shared.c
x86/pci: Treat EfiMemoryMappedIO as reservation of ECAM space
2023-01-13 11:53:54 -06:00
numachip.c
x86/PCI: Add pci_numachip_init() declaration
2021-08-12 14:07:31 -05:00
olpc.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
pcbios.c
x86/pci: Clean up open-coded PCIBIOS return code mangling
2023-12-01 16:50:59 -06:00
sta2x11-fixup.c
swiotlb: provide swiotlb_init variants that remap the buffer
2022-04-18 07:21:13 +02:00
xen.c
x86/apic: Rename disable_apic
2023-08-09 11:58:16 -07:00