kconfig: rename SYMBOL_AUTO to SYMBOL_NO_WRITE

Over time, the use of the flag SYMBOL_AUTO changed from initially
marking three automatically generated symbols ARCH, KERNELRELEASE and
UNAME_RELEASE to today's effect of protecting symbols from being
written out.

Currently, only symbols of type CHOICE and those with option
defconf_list set have that flag set.

Reflect that change in semantics in the flag's name.

Signed-off-by: Dirk Gouders <dirk@gouders.net>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

6 files changed, 8 insertions, 8 deletions

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 39e20974f4a3..d1216e4ade2f 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -397,7 +397,7 @@ int conf_read(const char *name)
 
         for_all_symbols(i, sym) {
                 sym_calc_value(sym);
-                if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
+                if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE))
                         continue;
                 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
                         /* check that calculated value agrees with saved value */
@@ -832,7 +832,7 @@ static int conf_split_config(void)
         res = 0;
         for_all_symbols(i, sym) {
                 sym_calc_value(sym);
-                if ((sym->flags & SYMBOL_AUTO) || !sym->name)
+                if ((sym->flags & SYMBOL_NO_WRITE) || !sym->name)
                         continue;
                 if (sym->flags & SYMBOL_WRITE) {
                         if (sym->flags & SYMBOL_DEF_AUTO) {
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index f63b41b0dd49..84a5199bb46b 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -141,7 +141,7 @@ struct symbol {
 #define SYMBOL_OPTIONAL   0x0100  /* choice is optional - values can be 'n' */
 #define SYMBOL_WRITE      0x0200  /* write symbol to file (KCONFIG_CONFIG) */
 #define SYMBOL_CHANGED    0x0400  /* ? */
-#define SYMBOL_AUTO       0x1000  /* value from environment variable */
+#define SYMBOL_NO_WRITE   0x1000  /* Symbol for internal use only; it will not be written */
 #define SYMBOL_CHECKED    0x2000  /* used during dependency checking */
 #define SYMBOL_WARNED     0x8000  /* warning has been issued */
 
diff --git a/scripts/kconfig/gconf.c b/scripts/kconfig/gconf.c
index 610c4ab54d76..a9e48cc7b50a 100644
--- a/scripts/kconfig/gconf.c
+++ b/scripts/kconfig/gconf.c
@@ -101,8 +101,8 @@ const char *dbg_sym_flags(int val)
                 strcat(buf, "write/");
         if (val & SYMBOL_CHANGED)
                 strcat(buf, "changed/");
-        if (val & SYMBOL_AUTO)
-                strcat(buf, "auto/");
+        if (val & SYMBOL_NO_WRITE)
+                strcat(buf, "no_write/");
 
         buf[strlen(buf) - 1] = '\0';
 
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 379a119dcd1e..4cf15d449c05 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -212,7 +212,7 @@ void menu_add_option(int token, char *arg)
                         sym_defconfig_list = current_entry->sym;
                 else if (sym_defconfig_list != current_entry->sym)
                         zconf_error("trying to redefine defconfig symbol");
-                sym_defconfig_list->flags |= SYMBOL_AUTO;
+                sym_defconfig_list->flags |= SYMBOL_NO_WRITE;
                 break;
         case T_OPT_ALLNOCONFIG_Y:
                 current_entry->sym->flags |= SYMBOL_ALLNOCONFIG_Y;
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 7c9a88e91cfa..869a5e8e87a5 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -463,7 +463,7 @@ void sym_calc_value(struct symbol *sym)
                 }
         }
 
-        if (sym->flags & SYMBOL_AUTO)
+        if (sym->flags & SYMBOL_NO_WRITE)
                 sym->flags &= ~SYMBOL_WRITE;
 
         if (sym->flags & SYMBOL_NEED_SET_CHOICE_VALUES)
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 4b68272ebdb9..96081aa0fef0 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -265,7 +265,7 @@ symbol_option_arg:
 choice: T_CHOICE word_opt T_EOL
 {
         struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
-        sym->flags |= SYMBOL_AUTO;
+        sym->flags |= SYMBOL_NO_WRITE;
         menu_add_entry(sym);
         menu_add_expr(P_CHOICE, NULL, NULL);
         free($2);