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Rafael J. Wysocki authored
Commit 9f29ab11 ("ACPI / scan: do not match drivers against objects having scan handlers") introduced a boot regression on Tony's ia64 HP rx2600. Tony says: "It panics with the message: Kernel panic - not syncing: Unable to find SBA IOMMU: Try a generic or DIG kernel [...] my problem comes from arch/ia64/hp/common/sba_iommu.c where the code in sba_init() says: acpi_bus_register_driver(&acpi_sba_ioc_driver); if (!ioc_list) { but because of this change we never managed to call ioc_init() so ioc_list doesn't get set up, and we die." Revert it to avoid this breakage and we'll fix the problem it attempted to address later. Reported-by:
Tony Luck <tony.luck@gmail.com> Cc: 3.9+ <stable@vger.kernel.org> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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