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linux/drivers/pci/hotplug
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Naveen Naidu a18a025c2f PCI: cpqphp: Use PCI_POSSIBLE_ERROR() to check config reads 
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>
2021-11-18 14:13:18 -06:00
..
acpi_pcihp.c
PCI: Fix kernel-doc errors
2021-03-11 17:37:20 -06:00
acpiphp_core.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
acpiphp_glue.c
PCI: Correct misspelled and remove duplicated words
2021-10-08 17:14:04 -05:00
acpiphp_ibm.c
PCI: hotplug: Embed hotplug_slot
2018-09-18 17:52:15 -05:00
acpiphp.h
PCI: acpiphp: Fix whitespace issue
2021-04-16 14:32:18 -05:00
cpci_hotplug_core.c
PCI: Remove unnecessary returns
2019-08-30 14:00:34 -05:00
cpci_hotplug_pci.c
PCI: cpcihp: Declare cpci_debug in header file
2021-07-01 15:32:45 -05:00
cpci_hotplug.h
PCI: cpcihp: Declare cpci_debug in header file
2021-07-01 15:32:45 -05:00
cpcihp_generic.c
PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate
2018-01-28 15:49:06 -06:00
cpcihp_zt5550.c
PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate
2018-01-28 15:49:06 -06:00
cpcihp_zt5550.h
PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate
2018-01-28 15:49:06 -06:00
cpqphp_core.c
PCI: Fix kernel-doc formatting
2021-07-06 10:37:46 -05:00
cpqphp_ctrl.c
PCI: cpqphp: Use PCI_POSSIBLE_ERROR() to check config reads
2021-11-18 14:13:18 -06:00
cpqphp_nvram.c
PCI: cpqphp: Use DEFINE_SPINLOCK() for int15_lock
2021-04-14 15:24:10 -05:00
cpqphp_nvram.h
PCI: Remove unnecessary returns
2019-08-30 14:00:34 -05:00
cpqphp_pci.c
PCI: cpqphp: Format if-statement code block correctly
2021-10-12 20:48:44 -05:00
cpqphp_sysfs.c
PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate
2018-01-28 15:49:06 -06:00
cpqphp.h
PCI: cpqphp: Use <linux/io.h> instead of <asm/io.h>
2021-11-02 14:41:58 -05:00
ibmphp_core.c
PCI: ibmphp: Turn semaphores into completions or mutexes
2019-01-29 17:15:36 -06:00
ibmphp_ebda.c
PCI: ibmphp: Fix double unmap of io_mem
2021-09-02 12:02:50 -05:00
ibmphp_hpc.c
PCI: ibmphp: Turn semaphores into completions or mutexes
2019-01-29 17:15:36 -06:00
ibmphp_pci.c
PCI: ibmphp: Remove unneeded break
2020-11-20 11:17:55 -06:00
ibmphp_res.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
ibmphp.h
PCI: Correct misspelled and remove duplicated words
2021-10-08 17:14:04 -05:00
Kconfig
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
Makefile
PCI/hotplug: remove the sgi_hotplug driver
2019-08-16 11:33:56 -07:00
pci_hotplug_core.c
PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions
2021-06-03 22:14:47 -05:00
pciehp_core.c
PCI: pciehp: Ignore Link Down/Up caused by error-induced Hot Reset
2021-10-15 14:23:46 -05:00
pciehp_ctrl.c
pci-v5.10-changes
2020-10-22 12:41:00 -07:00
pciehp_hpc.c
PCI: pciehp: Use PCI_POSSIBLE_ERROR() to check config reads
2021-11-18 14:13:18 -06:00
pciehp_pci.c
PCI: pciehp: Log messages with pci_dev, not pcie_device
2019-05-09 16:45:20 -05:00
pciehp.h
PCI: pciehp: Ignore Link Down/Up caused by error-induced Hot Reset
2021-10-15 14:23:46 -05:00
pnv_php.c
PCI: Change the type of probe argument in reset functions
2021-08-18 17:32:42 -05:00
rpadlpar_core.c
PCI: rpadlpar: Use for_each_child_of_node() and for_each_node_by_name()
2020-09-17 16:22:36 -05:00
rpadlpar_sysfs.c
PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions
2021-06-03 22:14:47 -05:00
rpadlpar.h
PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate
2018-01-28 15:49:06 -06:00
rpaphp_core.c
PCI: Use of_node_name_eq() for node name comparisons
2020-04-24 18:02:17 -05:00
rpaphp_pci.c
powerpc/eeh: Make early EEH init pseries specific
2020-03-25 12:09:39 +11:00
rpaphp_slot.c
PCI: rpaphp: Get/put device node reference during slot alloc/dealloc
2019-04-10 16:07:12 -05:00
rpaphp.h
PCI: hotplug: Embed hotplug_slot
2018-09-18 17:52:15 -05:00
s390_pci_hpc.c
s390/pci: implement reset_slot for hotplug slot
2021-11-08 14:17:49 +01:00
shpchp_core.c
PCI: hotplug: Embed hotplug_slot
2018-09-18 17:52:15 -05:00
shpchp_ctrl.c
pci-v5.10-changes
2020-10-22 12:41:00 -07:00
shpchp_hpc.c
PCI: Correct misspelled and remove duplicated words
2021-10-08 17:14:04 -05:00
shpchp_pci.c
PCI: shpchp: Make shpchp_unconfigure_device() void
2020-05-21 15:23:20 -05:00
shpchp_sysfs.c
PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions
2021-06-03 22:14:47 -05:00
shpchp.h
PCI: shpchp: Make shpchp_unconfigure_device() void
2020-05-21 15:23:20 -05:00
TODO
PCI: ibmphp: Fix double unmap of io_mem
2021-09-02 12:02:50 -05:00