[PATCH v3] kconfig: replace 'oldnoconfig' with 'olddefconfig', and keep the old name as an alias

[Adam Lee <adam8157@gmail.com>]

As 67d34a6a391369269a2e5dba8a5f42cc4cd50231 said, 'oldnoconfig' doesn't
set new symbols to 'n', but instead sets it to their default values.

So, this patch replaces 'oldnoconfig' with 'olddefconfig', stop making
people confused, and keep the old name 'oldnoconfig' as an alias,
because people already are dependent on its behavior with the
counter-intuitive name.

v3: use a better way an add comments about alias in conf.c

Signed-off-by: Adam Lee <adam8157@gmail.com>
---
 scripts/kconfig/Makefile     | 12 +++++++++---
 scripts/kconfig/conf.c       | 25 ++++++++++++++++---------
 tools/testing/ktest/ktest.pl | 15 +++++++--------
 3 files changed, 32 insertions(+), 20 deletions(-)

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 77d5399..3091794 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -76,11 +76,17 @@ PHONY += allnoconfig allyesconfig allmodconfig alldefconfig randconfig
 allnoconfig allyesconfig allmodconfig alldefconfig randconfig: $(obj)/conf
 	$< --$@ $(Kconfig)
 
-PHONY += listnewconfig oldnoconfig savedefconfig defconfig
+PHONY += listnewconfig olddefconfig oldnoconfig savedefconfig defconfig
 
-listnewconfig oldnoconfig: $(obj)/conf
+listnewconfig olddefconfig: $(obj)/conf
 	$< --$@ $(Kconfig)
 
+# oldnoconfig is an alias of olddefconfig, because people already are dependent
+# on its behavior(sets new symbols to their default value but not 'n') with the
+# counter-intuitive name.
+oldnoconfig: $(obj)/conf
+	$< --olddefconfig $(Kconfig)
+
 savedefconfig: $(obj)/conf
 	$< --$@=defconfig $(Kconfig)
 
@@ -114,7 +120,7 @@ help:
 	@echo  '  alldefconfig    - New config with all symbols set to default'
 	@echo  '  randconfig	  - New config with random answer to all options'
 	@echo  '  listnewconfig   - List new options'
-	@echo  '  oldnoconfig     - Same as silentoldconfig but sets new symbols to their default value'
+	@echo  '  olddefconfig	  - Same as silentoldconfig but sets new symbols to their default value'
 
 # lxdialog stuff
 check-lxdialog  := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 6875680..4da3b4a 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -32,7 +32,7 @@ enum input_mode {
 	defconfig,
 	savedefconfig,
 	listnewconfig,
-	oldnoconfig,
+	olddefconfig,
 } input_mode = oldaskconfig;
 
 static int indent = 1;
@@ -365,7 +365,7 @@ static void conf(struct menu *menu)
 		case P_MENU:
 			if ((input_mode == silentoldconfig ||
 			     input_mode == listnewconfig ||
-			     input_mode == oldnoconfig) &&
+			     input_mode == olddefconfig) &&
 			    rootEntry != menu) {
 				check_conf(menu);
 				return;
@@ -429,7 +429,7 @@ static void check_conf(struct menu *menu)
 				if (sym->name && !sym_is_choice_value(sym)) {
 					printf("%s%s\n", CONFIG_, sym->name);
 				}
-			} else if (input_mode != oldnoconfig) {
+			} else if (input_mode != olddefconfig) {
 				if (!conf_cnt++)
 					printf(_("*\n* Restart config...\n*\n"));
 				rootEntry = menu_get_parent_menu(menu);
@@ -454,7 +454,13 @@ static struct option long_opts[] = {
 	{"alldefconfig",    no_argument,       NULL, alldefconfig},
 	{"randconfig",      no_argument,       NULL, randconfig},
 	{"listnewconfig",   no_argument,       NULL, listnewconfig},
-	{"oldnoconfig",     no_argument,       NULL, oldnoconfig},
+	{"olddefconfig",    no_argument,       NULL, olddefconfig},
+	/*
+	 * oldnoconfig is an alias of olddefconfig, because people already
+	 * are dependent on its behavior(sets new symbols to their default
+	 * value but not 'n') with the counter-intuitive name.
+	 */
+	{"oldnoconfig",     no_argument,       NULL, olddefconfig},
 	{NULL, 0, NULL, 0}
 };
 
@@ -467,7 +473,8 @@ static void conf_usage(const char *progname)
 	printf("  --oldaskconfig          Start a new configuration using a line-oriented program\n");
 	printf("  --oldconfig             Update a configuration using a provided .config as base\n");
 	printf("  --silentoldconfig       Same as oldconfig, but quietly, additionally update deps\n");
-	printf("  --oldnoconfig           Same as silentoldconfig but sets new symbols to their default value\n");
+	printf("  --olddefconfig          Same as silentoldconfig but sets new symbols to their default value\n");
+	printf("  --oldnoconfig           An alias of olddefconfig\n");
 	printf("  --defconfig <file>      New config with default defined in <file>\n");
 	printf("  --savedefconfig <file>  Save the minimal current configuration to <file>\n");
 	printf("  --allnoconfig           New config where all options are answered with no\n");
@@ -520,7 +527,7 @@ int main(int ac, char **av)
 		case allmodconfig:
 		case alldefconfig:
 		case listnewconfig:
-		case oldnoconfig:
+		case olddefconfig:
 			break;
 		case '?':
 			conf_usage(progname);
@@ -565,7 +572,7 @@ int main(int ac, char **av)
 	case oldaskconfig:
 	case oldconfig:
 	case listnewconfig:
-	case oldnoconfig:
+	case olddefconfig:
 		conf_read(NULL);
 		break;
 	case allnoconfig:
@@ -645,7 +652,7 @@ int main(int ac, char **av)
 		/* fall through */
 	case oldconfig:
 	case listnewconfig:
-	case oldnoconfig:
+	case olddefconfig:
 	case silentoldconfig:
 		/* Update until a loop caused no more changes */
 		do {
@@ -653,7 +660,7 @@ int main(int ac, char **av)
 			check_conf(&rootmenu);
 		} while (conf_cnt &&
 			 (input_mode != listnewconfig &&
-			  input_mode != oldnoconfig));
+			  input_mode != olddefconfig));
 		break;
 	}
 
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 52b7959..0ed73b5 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1871,10 +1871,10 @@ sub make_oldconfig {
 	apply_min_config;
     }
 
-    if (!run_command "$make oldnoconfig") {
-	# Perhaps oldnoconfig doesn't exist in this version of the kernel
+    if (!run_command "$make olddefconfig") {
+	# Perhaps olddefconfig doesn't exist in this version of the kernel
 	# try a yes '' | oldconfig
-	doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
+	doprint "olddefconfig failed, trying yes '' | make oldconfig\n";
 	run_command "yes '' | $make oldconfig" or
 	    dodie "failed make config oldconfig";
     }
@@ -1927,7 +1927,7 @@ sub build {
 
     # old config can ask questions
     if ($type eq "oldconfig") {
-	$type = "oldnoconfig";
+	$type = "olddefconfig";
 
 	# allow for empty configs
 	run_command "touch $output_config";
@@ -1957,7 +1957,7 @@ sub build {
 	load_force_config($minconfig);
     }
 
-    if ($type ne "oldnoconfig") {
+    if ($type ne "olddefconfig") {
 	run_command "$make $type" or
 	    dodie "failed make config";
     }
@@ -2456,8 +2456,7 @@ my %config_set;
 
 # config_off holds the set of configs that the bad config had disabled.
 # We need to record them and set them in the .config when running
-# oldnoconfig, because oldnoconfig does not turn off new symbols, but
-# instead just keeps the defaults.
+# olddefconfig, because olddefconfig keeps the defaults.
 my %config_off;
 
 # config_off_tmp holds a set of configs to turn off for now
@@ -3248,7 +3247,7 @@ sub test_this_config {
     }
 
     # Remove this config from the list of configs
-    # do a make oldnoconfig and then read the resulting
+    # do a make olddefconfig and then read the resulting
     # .config to make sure it is missing the config that
     # we had before
     my %configs = %min_configs;
-- 
1.7.11.4