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>

1 files changed, 2 insertions, 0 deletions

diff --git a/ifpps.zsh b/ifpps.zsh
index 87ce135..83de153 100644
--- a/ifpps.zsh
+++ b/ifpps.zsh
@@ -23,6 +23,8 @@ _arguments -s -S \
     "(-n --num-cpus)"{-n,--num-cpus}"[Number of top hitter CPUs to display in ncurses mode (default 10)]" \
     "(-C --csv)"{-C,--csv}"[Output to terminal as CSV  E.g. post-processing with Gnuplot et al.]" \
     "(-l --loop)"{-l,--loop}"[Loop terminal output]" \
+    "(-m --median)"{-m,--median}"[Display median values]" \
+    "(-W --no-warn)"{-W,--no-warn}"[Suppress warnings]" \
     {-v,--version}"[Print version]:" \
     {-h,--help}"[Print this help]:" \
     "*::args:_gnu_generic"