Matthew Garrett c9651e70ad ASPM: Fix pcie devices with non-pcie children ... Since 3.2.12 and 3.3, some systems are failing to boot with a BUG_ON. Some other systems using the pata_jmicron driver fail to boot because no disks are detected. Passing pcie_aspm=force on the kernel command line works around it. The cause: commit 4949be1682 ("PCI: ignore pre-1.1 ASPM quirking when ASPM is disabled") changed the behaviour of pcie_aspm_sanity_check() to always return 0 if aspm is disabled, in order to avoid cases where we changed ASPM state on pre-PCIe 1.1 devices. This skipped the secondary function of pcie_aspm_sanity_check which was to avoid us enabling ASPM on devices that had non-PCIe children, causing trouble later on. Move the aspm_disabled check so we continue to honour that scenario. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=42979 and http://bugs.debian.org/665420 Reported-by: Romain Francoise <romain@orebokech.com> # kernel panic Reported-by: Chris Holland <bandidoirlandes@gmail.com> # disk detection trouble Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: stable@vger.kernel.org Tested-by: Hatem Masmoudi <hatem.masmoudi@gmail.com> # Dell Latitude E5520 Tested-by: janek <jan0x6c@gmail.com> # pata_jmicron with JMB362/JMB363 [jn: with more symptoms in log message] Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-03-31 12:49:56 -07:00
..
aer	module_param: make bool parameters really bool (drivers & misc)	2012-01-13 09:32:20 +10:30
aspm.c	ASPM: Fix pcie devices with non-pcie children	2012-03-31 12:49:56 -07:00
Kconfig	PCI: pcie: Add support for setting default ASPM policy	2012-02-17 09:22:03 -08:00
Makefile
pme.c	PCI / PM: Extend PME polling to all PCI devices	2011-10-14 09:05:31 -07:00
portdrv_acpi.c	PCI/ACPI: Request _OSC control once for each root bridge (v3)	2011-01-14 08:55:41 -08:00
portdrv_bus.c
portdrv_core.c	PCI: Add pcie_hp=nomsi to disable MSI/MSI-X for pciehp driver	2012-02-23 12:29:35 -08:00
portdrv_pci.c
portdrv.h	PCI: Add pcie_hp=nomsi to disable MSI/MSI-X for pciehp driver	2012-02-23 12:29:35 -08:00