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Commit d3465af6 authored by Ulf Magnusson's avatar Ulf Magnusson Committed by Masahiro Yamada
Browse files

kconfig: Clarify choice dependency propagation 



It's easy to miss that choices are special-cased to pass on their mode
as the parent dependency.

No functional changes. Only comments added.

Signed-off-by: default avatarUlf Magnusson <ulfalizer@gmail.com>
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent 3e41ba05

scripts/kconfig/menu.c

+7 −0
Original line number Diff line number Diff line
@@ -323,6 +323,13 @@ void menu_finalize(struct menu *parent) 
				if (menu->sym && menu->sym->type == S_UNKNOWN)

					menu_set_type(sym->type);

			}



			/*

			 * Use the choice itself as the parent dependency of

			 * the contained items. This turns the mode of the

			 * choice into an upper bound on the visibility of the

			 * choice value symbols.

			 */

			parentdep = expr_alloc_symbol(sym);

		} else if (parent->prompt)

			parentdep = parent->prompt->visible.expr;