Messages in this thread Patch in this message | | | From | Ulf Magnusson <> | Subject | [PATCH v2 1/2] kconfig: Document 'if' flattening logic | Date | Sun, 14 Jan 2018 15:49:26 +0100 |
| |
It is not obvious that this might refer to an 'if', making the code pretty cryptic:
if (menu->list && (!menu->prompt || !menu->prompt->text)) {
Kconfig keeps the 'if' menu nodes even after flattening. Reflect that in the example to be accurate.
No functional changes. Only comments added.
Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> --- Changelog
v2: I forgot to mention that this code also undoes automatic submenus created below promptless symbols.
scripts/kconfig/menu.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+)
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c index 53964d911708..a8af08aabfd6 100644 --- a/scripts/kconfig/menu.c +++ b/scripts/kconfig/menu.c @@ -531,6 +531,35 @@ void menu_finalize(struct menu *parent) *ep = expr_alloc_one(E_LIST, NULL); (*ep)->right.sym = menu->sym; } + + /* + * This code serves two purposes: + * + * (1) Flattening 'if' blocks, which do not specify a submenu + * and only add dependencies. + * + * (Automatic submenu creation might still create a submenu + * from an 'if' before this code runs.) + * + * (2) "Undoing" any automatic submenus created earlier below + * promptless symbols. + * + * Before: + * + * A + * if ... (or promptless symbol) + * +-B + * +-C + * D + * + * After: + * + * A + * if ... (or promptless symbol) + * B + * C + * D + */ if (menu->list && (!menu->prompt || !menu->prompt->text)) { for (last_menu = menu->list; ; last_menu = last_menu->next) { last_menu->parent = parent; -- 2.14.1
| |