linux-kernel - [PATCH RESEND1 12/12] ALSA: vsnd: Introduce Kconfig option to enable Xen PV sound

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Message-Id: <1502108577-8099-13-git-send-email-andr2000@gmail.com>
Date:   Mon,  7 Aug 2017 15:22:57 +0300
From:   Oleksandr Andrushchenko <andr2000@...il.com>
To:     alsa-devel@...a-project.org, xen-devel@...ts.xen.org,
        linux-kernel@...r.kernel.org
Cc:     perex@...ex.cz, tiwai@...e.com, andr2000@...il.com,
        Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>
Subject: [PATCH RESEND1 12/12] ALSA: vsnd: Introduce Kconfig option to enable Xen PV sound

From: Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>

Introduce Kconfig option to enable Xen para-virtualized sound
frontend driver. Also add sound frontend to the Makefile.

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>
---
 sound/drivers/Kconfig  | 12 ++++++++++++
 sound/drivers/Makefile |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig
index 7144cc36e8ae..6b8fa6110ca3 100644
--- a/sound/drivers/Kconfig
+++ b/sound/drivers/Kconfig
@@ -235,4 +235,16 @@ config SND_AC97_POWER_SAVE_DEFAULT
 
 	  See SND_AC97_POWER_SAVE for more details.
 
+config SND_XEN_FRONTEND
+	tristate "Xen virtual sound front-end driver"
+	depends on SND_PCM && XEN
+	select XEN_XENBUS_FRONTEND
+	default n
+	help
+	  This driver implements a front-end for the Xen
+	  para-virtualized sound.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-xen-front.
+
 endif	# SND_DRIVERS
diff --git a/sound/drivers/Makefile b/sound/drivers/Makefile
index 1a8440c8b138..70ed920a030f 100644
--- a/sound/drivers/Makefile
+++ b/sound/drivers/Makefile
@@ -11,6 +11,7 @@ snd-portman2x4-objs := portman2x4.o
 snd-serial-u16550-objs := serial-u16550.o
 snd-virmidi-objs := virmidi.o
 snd-ml403-ac97cr-objs := ml403-ac97cr.o pcm-indirect2.o
+snd-xen-front-objs := xen-front.o
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_DUMMY) += snd-dummy.o
@@ -21,5 +22,6 @@ obj-$(CONFIG_SND_MTPAV) += snd-mtpav.o
 obj-$(CONFIG_SND_MTS64) += snd-mts64.o
 obj-$(CONFIG_SND_PORTMAN2X4) += snd-portman2x4.o
 obj-$(CONFIG_SND_ML403_AC97CR) += snd-ml403-ac97cr.o
+obj-$(CONFIG_SND_XEN_FRONTEND) += snd-xen-front.o
 
 obj-$(CONFIG_SND) += opl3/ opl4/ mpu401/ vx/ pcsp/
-- 
2.7.4