kconfig: sync with Linux 4.1

Update the files under scripts/kconfig/ to match Linux 4.1.
Some Kconfig sources have diverged from those in the kernel,
so commit-base syncing was done not to lose U-Boot specific updates.

The commits cherry-picked from Linux are:

[1] commit be8af2d54a66911693eddc556e4f7a866670082b
    Author: Bjørn Forsman <bjorn.forsman@gmail.com>
    kconfig/lxdialog: get ncurses CFLAGS with pkg-config

[2] commit 3943f42c11896ce82ad3da132c8a5630313bdd0e
    Author: Andrey Utkin <andrey.krieger.utkin@gmail.com>
    Replace mentions of "list_struct" to "list_head"

[3] commit e4e458b45c5861808674eebfea94cee2258bb2ea
    Author: Arjun Sreedharan <arjun024@gmail.com>
    calloc/xcalloc: Fix argument order

[4] commit 09950bc256e3628d275f90e016e6f5a039fbdcab
    Author: Olof Johansson <olof@lixom.net>
    merge_config.sh: Display usage if given too few arguments

[5] commit b6a2ab2cd4739a9573ed41677e53171987b8da34
    Author: Colin Ian King <colin.king@canonical.com>
    kconfig: use va_end to match corresponding va_start

[6] commit 70529b1a1784503169416df19ce3d68746401340
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Get rid of the P() macro in headers

[7] commit 463157444e377bf9b279101b1f16a94c4648c03a
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Remove dead code

[8] commit ad8d40cda3ad22ad9e8863d55a5c88f85c0173f0
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Remove unnecessary prototypes from headers

[9] commit de4619937229378e81f95e99c9866acc8e207d34
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    kbuild: mergeconfig: fix "jobserver unavailable" warning

[10] commit b9fe99c5b994c6ddc57780993966b18899526c0b
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    kbuild: mergeconfig: move an error check to merge_config.sh

[11] commit 371cfd4ff0611d8bc5d18bbb9cc6a2bc3d56cd3d
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    kbuild: mergeconfig: remove redundant $(objtree)

[12] commit 3a975b8cfcbe026b535f83bde9a3c009bae214f9
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    merge_config.sh: improve indentation

[13] commit bc8f8f5fc47cd02c2c5f3580dac2fe6695af1edd
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    merge_config.sh: rename MAKE to RUNMAKE

[14] commit 63a91033d52e64a22e571fe84924c0b7f21c280d
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    kbuild: add generic mergeconfig target, %.config

[15] commit 1cba0c305758c3c1786ecaceb03e142c95a4edc9
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Simplify Makefile

[16] commit 0a1f00a1c86421cc07cec87011c7cf4df68ee54b
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Do not print status messages in make -s mode

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Arjun Sreedharan <arjun024@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

1 files changed, 19 insertions, 11 deletions

diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index efa4733461..ec8e20350a 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -35,7 +35,7 @@ usage() {
 	echo "  -O    dir to put generated output files"
 }
 
-MAKE=true
+RUNMAKE=true
 ALLTARGET=alldefconfig
 WARNREDUN=false
 OUTPUT=.
@@ -48,7 +48,7 @@ while true; do
 		continue
 		;;
 	"-m")
-		MAKE=false
+		RUNMAKE=false
 		shift
 		continue
 		;;
@@ -77,9 +77,19 @@ while true; do
 	esac
 done
 
+if [ "$#" -lt 2 ] ; then
+	usage
+	exit
+fi
+
 INITFILE=$1
 shift;
 
+if [ ! -r "$INITFILE" ]; then
+	echo "The base file '$INITFILE' does not exist.  Exit." >&2
+	exit 1
+fi
+
 MERGE_LIST=$*
 SED_CONFIG_EXP="s/^\(# \)\{0,1\}\(CONFIG_[a-zA-Z0-9_]*\)[= ].*/\2/p"
 TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
@@ -93,25 +103,23 @@ for MERGE_FILE in $MERGE_LIST ; do
 	CFG_LIST=$(sed -n "$SED_CONFIG_EXP" $MERGE_FILE)
 
 	for CFG in $CFG_LIST ; do
-		grep -q -w $CFG $TMP_FILE
-		if [ $? -eq 0 ] ; then
-			PREV_VAL=$(grep -w $CFG $TMP_FILE)
-			NEW_VAL=$(grep -w $CFG $MERGE_FILE)
-			if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
+		grep -q -w $CFG $TMP_FILE || continue
+		PREV_VAL=$(grep -w $CFG $TMP_FILE)
+		NEW_VAL=$(grep -w $CFG $MERGE_FILE)
+		if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
 			echo Value of $CFG is redefined by fragment $MERGE_FILE:
 			echo Previous  value: $PREV_VAL
 			echo New value:       $NEW_VAL
 			echo
-			elif [ "$WARNREDUN" = "true" ]; then
+		elif [ "$WARNREDUN" = "true" ]; then
 			echo Value of $CFG is redundant by fragment $MERGE_FILE:
-			fi
-			sed -i "/$CFG[ =]/d" $TMP_FILE
 		fi
+		sed -i "/$CFG[ =]/d" $TMP_FILE
 	done
 	cat $MERGE_FILE >> $TMP_FILE
 done
 
-if [ "$MAKE" = "false" ]; then
+if [ "$RUNMAKE" = "false" ]; then
 	cp $TMP_FILE $OUTPUT/.config
 	echo "#"
 	echo "# merged configuration written to $OUTPUT/.config (needs make)"