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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-06-19 02:25:08 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-06-19 02:25:08 +0200 |
| commit | 6ea24cf79e055f0a62a64baa8587e2254a493c7b (patch) | |
| tree | c5cd6113ed93854b1bc30cd471c366f080c4be2f /arch/x86/xen/spinlock.c | |
| parent | Input: xpad - fix rumble on Xbox One controllers with 2015 firmware (diff) | |
| parent | Input: add HDMI CEC specific keycodes (diff) | |
| download | linux-6ea24cf79e055f0a62a64baa8587e2254a493c7b.tar.xz linux-6ea24cf79e055f0a62a64baa8587e2254a493c7b.zip | |
Merge branch 'cec-defines' into for-linus
Let's bring in HDMI CEC defines to ease merging CEC support in the next
merge window.
Diffstat (limited to 'arch/x86/xen/spinlock.c')
| -rw-r--r-- | arch/x86/xen/spinlock.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c index 9e2ba5c6e1dd..f42e78de1e10 100644 --- a/arch/x86/xen/spinlock.c +++ b/arch/x86/xen/spinlock.c @@ -27,6 +27,12 @@ static bool xen_pvspin = true; static void xen_qlock_kick(int cpu) { + int irq = per_cpu(lock_kicker_irq, cpu); + + /* Don't kick if the target's kicker interrupt is not initialized. */ + if (irq == -1) + return; + xen_send_IPI_one(cpu, XEN_SPIN_UNLOCK_VECTOR); } |