linux-kernel - [PATCH] Fix Irq Subsystem menu

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Date:	Mon, 10 Dec 2012 22:29:10 -0500
From:	Paul Thompson <set.mailinglist@...il.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] Fix Irq Subsystem menu

	Hi;

	In menuconfig, General setup -> Irq subsystem contains two
possible menu-items. Sometimes, neither menu-item exists. This
patch prevents the Irq susystem menu from appearing at all unless it
will contain at least one menu-item, preventing a confusing, empty menu.

--- linux-3.7-rc8/kernel/irq/Kconfig.orig	2012-12-05 20:59:00.963707538 -0500
+++ linux-3.7-rc8/kernel/irq/Kconfig	2012-12-05 21:00:18.454788693 -0500
@@ -3,7 +3,6 @@ config HAVE_GENERIC_HARDIRQS
 	bool
 
 if HAVE_GENERIC_HARDIRQS
-menu "IRQ subsystem"
 #
 # Interrupt subsystem related configuration options
 #
@@ -56,6 +55,13 @@ config GENERIC_IRQ_CHIP
 config IRQ_DOMAIN
 	bool
 
+# Support forced irq threading
+config IRQ_FORCED_THREADING
+       bool
+
+menu "IRQ subsystem"
+	depends on ( IRQ_DOMAIN && DEBUG_FS ) || MAY_HAVE_SPARSE_IRQ
+
 config IRQ_DOMAIN_DEBUG
 	bool "Expose hardware/virtual IRQ mapping via debugfs"
 	depends on IRQ_DOMAIN && DEBUG_FS
@@ -66,10 +72,6 @@ config IRQ_DOMAIN_DEBUG
 
 	  If you don't know what this means you don't need it.
 
-# Support forced irq threading
-config IRQ_FORCED_THREADING
-       bool
-
 config SPARSE_IRQ
 	bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ
 	---help---

Signed-off-by: Paul Thompson <set.mailinglist@...il.com>

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