linux/drivers/xen
Joe Jin 110e7c7e4f xen/event: validate irq before get evtchn by irq
When retrieving the event channel number from irq, the irq
number may not be valid under some conditions.

So far that can be when we suspend/resume and irq ends with -1.
Validate and return sanitized irq and provide diagnostics information.

[v3: added unlikely on the WARN path]
[v2: reworded the commit message]
Signed-off-by: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Gurudas Pai <gurudas.pai@oracle.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
2011-01-10 10:46:32 -05:00
..
xenbus Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2010-10-28 17:11:17 -07:00
xenfs Merge branch 'upstream/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2010-11-24 08:23:18 +09:00
balloon.c xen: prevent crashes with non-HIGHMEM 32-bit kernels with largeish memory 2010-12-02 15:30:06 -08:00
biomerge.c xen: define BIOVEC_PHYS_MERGEABLE() 2010-10-18 10:40:28 -04:00
cpu_hotplug.c Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
events.c xen/event: validate irq before get evtchn by irq 2011-01-10 10:46:32 -05:00
evtchn.c Merge branch 'xen/dev-evtchn' into upstream/evtchn 2010-11-18 22:43:38 -08:00
features.c xen: clean up asm/xen/hypervisor.h 2008-12-16 21:50:31 +01:00
grant-table.c xen: Xen PCI platform device driver. 2010-07-22 16:46:09 -07:00
Kconfig swiotlb-xen: On x86-32 builts, select SWIOTLB instead of depending on it. 2010-10-18 10:49:40 -04:00
Makefile xen: make evtchn's name less generic 2010-11-18 23:44:44 -08:00
manage.c xen: resume the pv console for hvm guests too 2010-12-02 14:40:48 +00:00
pci.c xen: register xen pci notifier 2010-10-27 18:56:07 +01:00
platform-pci.c x86: Unplug emulated disks and nics. 2010-07-26 23:13:25 -07:00
swiotlb-xen.c swiotlb-xen: SWIOTLB library for Xen PV guest with PCI passthrough. 2010-07-27 11:51:00 -04:00
sys-hypervisor.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xencomm.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00