linux-kernel - [PATCH] genirq/debugfs: fix build for !CONFIG_IRQ

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Message-Id: <alpine.LFD.2.20.1707041124000.1712@schleppi>
Date:   Tue, 4 Jul 2017 11:25:15 +0200 (CEST)
From:   Sebastian Ott <sebott@...ux.vnet.ibm.com>
To:     Thomas Gleixner <tglx@...utronix.de>
cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] genirq/debugfs: fix build for !CONFIG_IRQ_DOMAIN

Fix this build error:

kernel/irq/internals.h:440:20: error: inlining failed in call to always_inline
  'irq_domain_debugfs_init': function body not available
kernel/irq/debugfs.c:202:2: note: called from here
  irq_domain_debugfs_init(root_dir);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Sebastian Ott <sebott@...ux.vnet.ibm.com>
---
 kernel/irq/internals.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 9da14d1..dbfba99 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -437,7 +437,9 @@ static inline void irq_remove_debugfs_entry(struct irq_desc *desc)
 # ifdef CONFIG_IRQ_DOMAIN
 void irq_domain_debugfs_init(struct dentry *root);
 # else
-static inline void irq_domain_debugfs_init(struct dentry *root);
+static inline void irq_domain_debugfs_init(struct dentry *root)
+{
+}
 # endif
 #else /* CONFIG_GENERIC_IRQ_DEBUGFS */
 static inline void irq_add_debugfs_entry(unsigned int irq, struct irq_desc *d)
-- 
2.7.4