From f9227077fe2908f189e4da88bfa8bc1ac17e02a4 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 4 Apr 2013 01:28:47 +0200
Subject: [PATCH] build: add defconfig files

This enables users to more easily select the driver that
they need, and us to ship default configurations that we
prefer for that driver. Add iwlwifi as the first example.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
---
 backport/Makefile.real      | 12 +++++++++++-
 backport/defconfigs/iwlwifi | 17 +++++++++++++++++
 gentree.py                  |  7 ++-----
 3 files changed, 30 insertions(+), 6 deletions(-)
 create mode 100644 backport/defconfigs/iwlwifi

diff --git a/backport/Makefile.real b/backport/Makefile.real
index c419772a808e..07eb8fc45573 100644
--- a/backport/Makefile.real
+++ b/backport/Makefile.real
@@ -27,13 +27,23 @@ usedefconfig:
 	@$(MAKE) -C kconfig conf
 	@./kconfig/conf --defconfig=defconfig Kconfig
 
+defconfig-%::
+	@$(MAKE) -C kconfig conf
+	@./kconfig/conf --defconfig=defconfigs/$(@:defconfig-%=%) Kconfig
+
 .config:
 	@test -f defconfig && (yes '' | $(MAKE) usedefconfig) || (	\
 	echo "/--------------"						;\
 	echo "| Your backport package isn't configured, please configure it" ;\
 	echo "| using one of the following options:"			;\
+	echo "| To configure manually:"					;\
+	echo "|     make oldconfig"					;\
 	echo "|     make menuconfig"					;\
-	echo "|     make allyesconfig"					;\
+	echo "|"							;\
+	echo "| To get defaults for certain drivers:"			;\
+	(cd defconfigs ; for f in $$(ls) ; do				\
+		echo "|     make defconfig-$$f"				;\
+	done )								;\
 	echo "\--"							;\
 	false )
 
diff --git a/backport/defconfigs/iwlwifi b/backport/defconfigs/iwlwifi
new file mode 100644
index 000000000000..6a5f4baed1f7
--- /dev/null
+++ b/backport/defconfigs/iwlwifi
@@ -0,0 +1,17 @@
+CPTCFG_CFG80211=m
+CPTCFG_CFG80211_DEFAULT_PS=y
+CPTCFG_CFG80211_DEBUGFS=y
+CPTCFG_MAC80211=m
+# CPTCFG_MAC80211_RC_PID is not set
+# CPTCFG_MAC80211_RC_MINSTREL is not set
+# CPTCFG_MAC80211_RC_DEFAULT_MINSTREL is not set
+CPTCFG_MAC80211_DEBUGFS=y
+CPTCFG_MAC80211_MESSAGE_TRACING=y
+CPTCFG_WLAN=y
+CPTCFG_IWLWIFI=m
+CPTCFG_IWLDVM=m
+CPTCFG_IWLMVM=m
+CPTCFG_IWLWIFI_DEBUG=y
+CPTCFG_IWLWIFI_DEBUGFS=y
+CPTCFG_IWLWIFI_DEVICE_TRACING=y
+CPTCFG_IWLWIFI_P2P=y
diff --git a/gentree.py b/gentree.py
index 696a960cb8ce..375479d0fd91 100755
--- a/gentree.py
+++ b/gentree.py
@@ -137,10 +137,7 @@ def copy_files(srcpath, copy_list, outdir):
             def copy_ignore(dir, entries):
                 r = []
                 for i in entries:
-                    if (not i[-1] in ('c', 'h') and
-                        i[-4:] != '.awk' and
-                        not i in ('Kconfig', 'Makefile') and
-                        not os.path.isdir(os.path.join(dir, i))):
+                    if i[-1] in ('o', '~'):
                         r.append(i)
                 return r
             copytree(os.path.join(srcpath, srcitem),
@@ -267,7 +264,7 @@ def process(kerneldir, outdir, copy_list_file, git_revision=None,
     # do the copy
     backport_files = [(x, x) for x in [
         'Kconfig', 'Makefile', 'Makefile.build', 'Makefile.kernel',
-        'Makefile.real', 'compat/', 'include/', 'kconfig/',
+        'Makefile.real', 'compat/', 'include/', 'kconfig/', 'defconfigs/',
     ]]
     if not args.git_revision:
         logwrite('Copy original source files ...')
-- 
2.30.2