[U-Boot] [PATCH v5 2/9] moveconfig: Ignore duplicate configs when moving

Joe Hershberger joe.hershberger at ni.com
Tue May 19 20:21:18 CEST 2015


When moving configs, it is important to know what was defined in the
config header even if it duplicates the configs coming from Kconfig.

This is specifically needed for the case where a config is set to
default 'y' in the Kconfig. This would previously cause the actual value
from the include config to be filtered out, and moveconfig.py would
think that it was 'n'... This means that the value that should be 'y'
is now (in every defconfig) set to 'not set'.

tools/moveconfig.py now defines KCONFIG_IGNORE_DUPLICATES to prevent the
filtering from happening and selecting wrong values for the defconfig.

Signed-off-by: Joe Hershberger <joe.hershberger at ni.com>
Acked-by: Masahiro Yamada <yamada.masahiro at socionext.com>

---

Changes in v5: None
Changes in v4: None
Changes in v3:
-New for version 3

Changes in v2: None

 scripts/Makefile.autoconf | 3 ++-
 tools/moveconfig.py       | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/Makefile.autoconf b/scripts/Makefile.autoconf
index f054081..36bfa17 100644
--- a/scripts/Makefile.autoconf
+++ b/scripts/Makefile.autoconf
@@ -58,7 +58,8 @@ quiet_cmd_autoconf = GEN     $@
 	$(CPP) $(c_flags) $2 -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && { \
 		sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp |		\
 		while read line; do							\
-			if ! grep -q "$${line%=*}=" include/config/auto.conf; then	\
+			if [ -n "${KCONFIG_IGNORE_DUPLICATES}" ] ||			\
+			   ! grep -q "$${line%=*}=" include/config/auto.conf; then	\
 				echo "$$line";						\
 			fi								\
 		done > $@;								\
diff --git a/tools/moveconfig.py b/tools/moveconfig.py
index c9984b4..dd9434d 100755
--- a/tools/moveconfig.py
+++ b/tools/moveconfig.py
@@ -627,6 +627,7 @@ class Slot:
         cmd = list(self.make_cmd)
         if cross_compile:
             cmd.append('CROSS_COMPILE=%s' % cross_compile)
+        cmd.append('KCONFIG_IGNORE_DUPLICATES=1')
         cmd.append('include/config/auto.conf')
         self.ps = subprocess.Popen(cmd, stdout=self.devnull)
         self.state = STATE_AUTOCONF
-- 
1.7.11.5



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