diff mbox series

[2/6] kconfig: call sym_calc_value() for all symbols before writing to .config

Message ID 1515567374-12722-2-git-send-email-yamada.masahiro@socionext.com
State New
Headers show
Series [1/6] kconfig: do not call check_conf() for olddefconfig | expand

Commit Message

Masahiro Yamada Jan. 10, 2018, 6:56 a.m. UTC
conf_write() skips sym_calc_value() for "choice", but we do not need
to do so.

conf_set_all_new_symbols() may have already called sym_calc_value()
for "choice", but set_all_choice_value() has cleared SYMBOL_VALID away.
So, conf_write() re-calculates "choice" here when calculating the
visibility of its children (choice value).

We can pass NULL to sym_calc_value() since it is no-op.

This should give no impact on behavior, but make the logic more easier
to understand.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

---

 scripts/kconfig/confdata.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

-- 
2.7.4

Comments

Ulf Magnusson Jan. 12, 2018, 1:21 p.m. UTC | #1
On Wed, Jan 10, 2018 at 7:56 AM, Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
> conf_write() skips sym_calc_value() for "choice", but we do not need

> to do so.

>

> conf_set_all_new_symbols() may have already called sym_calc_value()

> for "choice", but set_all_choice_value() has cleared SYMBOL_VALID away.

> So, conf_write() re-calculates "choice" here when calculating the

> visibility of its children (choice value).

>

> We can pass NULL to sym_calc_value() since it is no-op.

>

> This should give no impact on behavior, but make the logic more easier

> to understand.

>

> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

> ---

>

>  scripts/kconfig/confdata.c | 3 ++-

>  1 file changed, 2 insertions(+), 1 deletion(-)

>

> diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c

> index 027f5b4..bc83965 100644

> --- a/scripts/kconfig/confdata.c

> +++ b/scripts/kconfig/confdata.c

> @@ -790,6 +790,8 @@ int conf_write(const char *name)

>         menu = rootmenu.list;

>         while (menu) {

>                 sym = menu->sym;

> +               sym_calc_value(sym);

> +

>                 if (!sym) {

>                         if (!menu_is_visible(menu))

>                                 goto next;

> @@ -799,7 +801,6 @@ int conf_write(const char *name)

>                                      "# %s\n"

>                                      "#\n", str);

>                 } else if (!(sym->flags & SYMBOL_CHOICE)) {


Unrelated, but this could use !sym_is_choice(sym) as well.

> -                       sym_calc_value(sym);

>                         if (!(sym->flags & SYMBOL_WRITE))

>                                 goto next;

>                         sym->flags &= ~SYMBOL_WRITE;

> --

> 2.7.4

>


Not tested, but looks fine.

As a note if anyone else takes a look, choices get propagated to the
property conditions of the contained symbols, which indirectly causes
the choice to be calculated when the visibility of a contained symbol
is calculated.

Acked-by: Ulf Magnusson <ulfalizer@gmail.com>


Cheers,
Ulf
diff mbox series

Patch

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 027f5b4..bc83965 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -790,6 +790,8 @@  int conf_write(const char *name)
 	menu = rootmenu.list;
 	while (menu) {
 		sym = menu->sym;
+		sym_calc_value(sym);
+
 		if (!sym) {
 			if (!menu_is_visible(menu))
 				goto next;
@@ -799,7 +801,6 @@  int conf_write(const char *name)
 				     "# %s\n"
 				     "#\n", str);
 		} else if (!(sym->flags & SYMBOL_CHOICE)) {
-			sym_calc_value(sym);
 			if (!(sym->flags & SYMBOL_WRITE))
 				goto next;
 			sym->flags &= ~SYMBOL_WRITE;