linux-kernel - [PATCH v5 3/3] Introduce CONFIG_GOOGLE

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Date:	Fri, 29 Apr 2011 17:39:31 -0700
From:	Mike Waychison <mikew@...gle.com>
To:	Greg KH <greg@...ah.com>, Matt Domsch <Matt_Domsch@...l.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Duncan Laurie <dlaurie@...gle.com>,
	Aaron Durbin <adurbin@...gle.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, Tim Hockin <thockin@...gle.com>,
	San Mehat <san@...gle.com>
Subject: [PATCH v5 3/3] Introduce CONFIG_GOOGLE_FIRMWARE

In order to keep Google's firmware drivers organized amongst themselves,
all Google firmware drivers are gated on CONFIG_GOOGLE_FIRMWARE=y, which
defaults to 'n' in the kernel build.

Signed-off-by: Mike Waychison <mikew@...gle.com>

---
Changelog:
v5:
   - refreshed to next-20110429
v4:
   - Moved to end of series.
v3:
   - Removed comment about 'other implementations' in Kconfig message as
     per gregkh.
---
 drivers/firmware/Makefile       |    2 +-
 drivers/firmware/google/Kconfig |   14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index d7d6009..47338c9791 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -14,4 +14,4 @@ obj-$(CONFIG_ISCSI_IBFT)	+= iscsi_ibft.o
 obj-$(CONFIG_FIRMWARE_MEMMAP)	+= memmap.o
 obj-$(CONFIG_SIGMA)		+= sigma.o
 
-obj-y  += google/
+obj-$(CONFIG_GOOGLE_FIRMWARE)	+= google/
diff --git a/drivers/firmware/google/Kconfig b/drivers/firmware/google/Kconfig
index 640dc6b..87096b6 100644
--- a/drivers/firmware/google/Kconfig
+++ b/drivers/firmware/google/Kconfig
@@ -1,3 +1,15 @@
+config GOOGLE_FIRMWARE
+	bool "Google Firmware Drivers"
+	depends on X86
+	default n
+	help
+	  These firmware drivers are used by Google's servers.  They are
+	  only useful if you are working directly on one of their
+	  proprietary servers.  If in doubt, say "N".
+
+menu "Google Firmware Drivers"
+	depends on GOOGLE_FIRMWARE
+
 config GOOGLE_SMI
 	tristate "SMI interface for Google platforms"
 	depends on ACPI && DMI
@@ -15,3 +27,5 @@ config GOOGLE_MEMCONSOLE
 	  This option enables the kernel to search for a firmware log in
 	  the EBDA on Google servers.  If found, this log is exported to
 	  userland in the file /sys/firmware/log.
+
+endmenu

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