linux-kernel - [PATCH] virtio: make VIRTIO a menuconfig to ease disabling it all

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Message-Id: <20180107113356.2806-1-vincent.legoll@gmail.com>
Date:   Sun,  7 Jan 2018 12:33:56 +0100
From:   Vincent Legoll <vincent.legoll@...il.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Vincent Legoll <vincent.legoll@...il.com>
Subject: [PATCH] virtio: make VIRTIO a menuconfig to ease disabling it all

No need to get into the submenu to disable all VIRTIO-related
config entries.

This makes it easier to disable all VIRTIO config options
without entering the submenu. It will also enable one
to see that en/dis-abled state from the outside menu.

This is only intended to change menuconfig UI, not change
the config dependencies.

v2: Added "default y" to avoid breaking existing configs
v3: Fixed wrong indentation, added *-by from Randy

Signed-off-by: Vincent Legoll <vincent.legoll@...il.com>
Reviewed-by: Randy Dunlap <rdunlap@...radead.org>
Tested-by: Randy Dunlap <rdunlap@...radead.org> # works for me
---
 drivers/virtio/Kconfig | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
index cff773f15b7e..35897649c24f 100644
--- a/drivers/virtio/Kconfig
+++ b/drivers/virtio/Kconfig
@@ -5,7 +5,11 @@ config VIRTIO
 	  bus, such as CONFIG_VIRTIO_PCI, CONFIG_VIRTIO_MMIO, CONFIG_RPMSG
 	  or CONFIG_S390_GUEST.
 
-menu "Virtio drivers"
+menuconfig VIRTIO_MENU
+	bool "Virtio drivers"
+	default y
+
+if VIRTIO_MENU
 
 config VIRTIO_PCI
 	tristate "PCI driver for virtio devices"
@@ -79,4 +83,4 @@ config VIRTIO_MMIO_CMDLINE_DEVICES
 
 	 If unsure, say 'N'.
 
-endmenu
+endif # VIRTIO_MENU
-- 
2.14.1