From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 10 Dec 2020 19:26:06 +0000 (+0100)
Subject: genirq: Restrict export of irq_to_desc()
X-Git-Tag: microblaze-v5.12~24^2
X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=commitdiff_plain;h=64a1b95bb9fe;hp=88f0a9d066443118261adf7e049781476f09dac1

genirq: Restrict export of irq_to_desc()

No more (ab)use in drivers finally. There is still the modular build of
PPC/KVM which needs it, so restrict it to this case which still makes it
unavailable for most drivers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201210194045.551428291@linutronix.de
---

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index f509c4db2029..3d0bc38a0bcf 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -352,7 +352,9 @@ struct irq_desc *irq_to_desc(unsigned int irq)
 {
 	return radix_tree_lookup(&irq_desc_tree, irq);
 }
-EXPORT_SYMBOL(irq_to_desc);
+#ifdef CONFIG_KVM_BOOK3S_64_HV
+EXPORT_SYMBOL_GPL(irq_to_desc);
+#endif
 
 static void delete_irq_desc(unsigned int irq)
 {