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linux-stable/drivers/pci/pcie
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Bjorn Helgaas 075b7d363c Revert "PCI/portdrv: Do not setup up IRQs if there are no users" 
This reverts commit 0e8ae5a6ff.

0e8ae5a6ff ("PCI/portdrv: Do not setup up IRQs if there are no users")
reduced usage of IRQs when we don't think we need them.  But Joey, Sergiu,
and David reported choppy GUI rendering, systems that became unresponsive
every few seconds, incorrect values reported by cpufreq, and high IRQ 16
CPU usage.

Joey bisected the issues to 0e8ae5a6ff, so revert it until we figure out
a better solution.

Link: https://lore.kernel.org/r/20220210222717.GA658201@bhelgaas
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215533
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215546
Reported-by: Joey Corleone <joey.corleone@mail.ru>
Reported-by: Sergiu Deitsch <sergiu.deitsch@gmail.com>
Reported-by: David Spencer <dspencer577@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org	# v5.16+
Cc: Jan Kiszka <jan.kiszka@siemens.com>
 		2022-02-11 14:16:11 -06:00
..
Kconfig PCI/LINK: Remove bandwidth notification 2021-02-02 14:25:11 -06:00
Makefile PCI/ERR: Reduce compile time for CONFIG_PCIEAER=n 2021-10-16 09:16:59 -05:00
aer.c PCI: Correct misspelled and remove duplicated words 2021-10-08 17:14:04 -05:00
aer_inject.c PCI/AER: Add RCEC AER error injection support 2020-12-05 15:26:02 -06:00
aspm.c Merge branch 'pci/enumeration' 2022-01-13 09:57:43 -06:00
dpc.c PCI/DPC: Use PCI_POSSIBLE_ERROR() to check config reads 2021-11-18 14:13:18 -06:00
edr.c PCI/EDR: Log only ACPI_NOTIFY_DISCONNECT_RECOVER events 2020-04-24 18:33:29 -05:00
err.c Revert "PCI: Use to_pci_driver() instead of pci_dev->driver" 2021-11-11 13:36:22 -06:00
pme.c PCI/PME: Use PCI_POSSIBLE_ERROR() to check config reads 2021-11-18 14:13:18 -06:00
portdrv.h PCI/portdrv: Remove unused pcie_port_bus_{,un}register() declarations 2021-10-15 14:25:18 -05:00
portdrv_core.c Revert "PCI/portdrv: Do not setup up IRQs if there are no users" 2022-02-11 14:16:11 -06:00
portdrv_pci.c PCI/portdrv: Remove unused resume err_handler 2021-10-15 14:25:08 -05:00
ptm.c pci-v5.15-changes 2021-09-07 19:13:42 -07:00
rcec.c PCI/RCEC: Fix RCiEP device to RCEC association 2021-03-10 15:10:46 -06:00