Hyper-V Host driver requires apic access

The port of the Hyper-V PCI host driver to UEK requires its
access to the apic_set_affinity() function, this is due to
backporting issues, and is not something to be carried forward.

Orabug: 25507635
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>
Signed-off-by: Dhaval Giani <dhaval.giani@oracle.com>

diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 6cedd79145813cc792c891573ac03b3e18d9e529..78497c2e90150caa23403e795e5e02b180a35c55 100644 (file)
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -373,6 +373,11 @@ int apic_set_affinity(struct irq_data *data, const struct cpumask *mask,
 
        return 0;
 }
+/*
+ *  This export is UEK-only for Hyper-V PCI pass-through driver,
+ *  do not add this function to kABI whitelist.
+ */
+EXPORT_SYMBOL_GPL(apic_set_affinity);
 
 #ifdef CONFIG_SMP
 void send_cleanup_vector(struct irq_cfg *cfg)