weiyufeng a531eca888 PCI: cpqphp: Use PCI_POSSIBLE_ERROR() to check config reads ... [ Upstream commit a18a025c2fb5fbf2d1d0606ea0d7441ac90e9c39 ] When config pci_ops.read() can detect failed PCI transactions, the data returned to the CPU is PCI_ERROR_RESPONSE (~0 or 0xffffffff). Obviously a successful PCI config read may *also* return that data if a config register happens to contain ~0, so it doesn't definitively indicate an error unless we know the register cannot contain ~0. Use PCI_POSSIBLE_ERROR() to check the response we get when we read data from hardware. This unifies PCI error response checking and makes error checks consistent and easier to find. Link: https://lore.kernel.org/r/b12005c0d57bb9d4c8b486724d078b7bd92f8321.1637243717.git.naveennaidu479@gmail.com Signed-off-by: Naveen Naidu <naveennaidu479@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Stable-dep-of: e2226dbc4a49 ("PCI: cpqphp: Fix PCIBIOS_* return value confusion") Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-12-17 13:24:11 +01:00
..
acpi_pcihp.c
acpiphp.h
acpiphp_core.c
acpiphp_glue.c
acpiphp_ibm.c
cpci_hotplug.h
cpci_hotplug_core.c
cpci_hotplug_pci.c
cpcihp_generic.c
cpcihp_zt5550.c
cpcihp_zt5550.h
cpqphp.h
cpqphp_core.c
cpqphp_ctrl.c
cpqphp_nvram.c
cpqphp_nvram.h
cpqphp_pci.c	PCI: cpqphp: Use PCI_POSSIBLE_ERROR() to check config reads	2024-12-17 13:24:11 +01:00
cpqphp_sysfs.c
ibmphp.h
ibmphp_core.c
ibmphp_ebda.c
ibmphp_hpc.c
ibmphp_pci.c
ibmphp_res.c
Kconfig
Makefile
pci_hotplug_core.c
pciehp.h
pciehp_core.c
pciehp_ctrl.c
pciehp_hpc.c
pciehp_pci.c
pnv_php.c	Revert "pci/hotplug/pnv_php: Fix hotplug driver crash on Powernv"	2024-11-24 00:23:40 +01:00
rpadlpar.h
rpadlpar_core.c
rpadlpar_sysfs.c
rpaphp.h
rpaphp_core.c
rpaphp_pci.c
rpaphp_slot.c
s390_pci_hpc.c
shpchp.h
shpchp_core.c
shpchp_ctrl.c
shpchp_hpc.c
shpchp_pci.c
shpchp_sysfs.c
TODO