x86/ioapic: Restore IO-APIC irq_chip retrigger callback
authorRuslan Ruslichenko <rruslich@cisco.com>
Tue, 17 Jan 2017 14:13:52 +0000 (16:13 +0200)
committerThomas Gleixner <tglx@linutronix.de>
Wed, 18 Jan 2017 14:37:28 +0000 (15:37 +0100)
commit020eb3daaba2857b32c4cf4c82f503d6a00a67de
tree329a05b424d783db675a4c711bd7633575e8181b
parent49def1853334396f948dcb4cedb9347abb318df5
x86/ioapic: Restore IO-APIC irq_chip retrigger callback

commit d32932d02e18 removed the irq_retrigger callback from the IO-APIC
chip and did not add it to the new IO-APIC-IR irq chip.

Unfortunately the software resend fallback is not enabled on X86, so edge
interrupts which are received during the lazy disabled state of the
interrupt line are not retriggered and therefor lost.

Restore the callbacks.

[ tglx: Massaged changelog ]

Fixes: d32932d02e18  ("x86/irq: Convert IOAPIC to use hierarchical irqdomain interfaces")
Signed-off-by: Ruslan Ruslichenko <rruslich@cisco.com>
Cc: xe-linux-external@cisco.com
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1484662432-13580-1-git-send-email-rruslich@cisco.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/kernel/apic/io_apic.c