From 9a47ceec543bfb703fbe2f8d584850b582caf1a6 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 20 Feb 2018 17:18:47 +0900 Subject: kconfig: clean-up reverse dependency help implementation This commit splits out the special E_OR handling ('-' instead of '||') into a dedicated helper expr_print_revdev(). Restore the original expr_print() prior to commit 1ccb27143360 ("kconfig: make "Selected by:" and "Implied by:" readable"). This makes sense because: - We need to chop those expressions only when printing the reverse dependency, and only when E_OR is encountered - Otherwise, it should be printed as before, so fall back to expr_print() This also improves the behavior; for a single line, it was previously displayed in the same line as "Selected by", like this: Selected by: A [=n] && B [=n] This will be displayed in a new line, consistently: Selected by: - A [=n] && B [=n] Signed-off-by: Masahiro Yamada Reviewed-by: Petr Vorel --- scripts/kconfig/expr.c | 36 +++++++++++++++++++++--------------- scripts/kconfig/menu.c | 4 ++-- 2 files changed, 23 insertions(+), 17 deletions(-) diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c index d45381986ac7..cd3a8f501f38 100644 --- a/scripts/kconfig/expr.c +++ b/scripts/kconfig/expr.c @@ -1179,7 +1179,9 @@ struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2) return expr_get_leftmost_symbol(ret); } -static void __expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken, bool revdep) +void expr_print(struct expr *e, + void (*fn)(void *, struct symbol *, const char *), + void *data, int prevtoken) { if (!e) { fn(data, NULL, "y"); @@ -1234,14 +1236,9 @@ static void __expr_print(struct expr *e, void (*fn)(void *, struct symbol *, con fn(data, e->right.sym, e->right.sym->name); break; case E_OR: - if (revdep && e->left.expr->type != E_OR) - fn(data, NULL, "\n - "); - __expr_print(e->left.expr, fn, data, E_OR, revdep); - if (revdep) - fn(data, NULL, "\n - "); - else - fn(data, NULL, " || "); - __expr_print(e->right.expr, fn, data, E_OR, revdep); + expr_print(e->left.expr, fn, data, E_OR); + fn(data, NULL, " || "); + expr_print(e->right.expr, fn, data, E_OR); break; case E_AND: expr_print(e->left.expr, fn, data, E_AND); @@ -1274,11 +1271,6 @@ static void __expr_print(struct expr *e, void (*fn)(void *, struct symbol *, con fn(data, NULL, ")"); } -void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken) -{ - __expr_print(e, fn, data, prevtoken, false); -} - static void expr_print_file_helper(void *data, struct symbol *sym, const char *str) { xfwrite(str, strlen(str), 1, data); @@ -1329,7 +1321,21 @@ void expr_gstr_print(struct expr *e, struct gstr *gs) * line with a minus. This makes expressions much easier to read. * Suitable for reverse dependency expressions. */ +static void expr_print_revdep(struct expr *e, + void (*fn)(void *, struct symbol *, const char *), + void *data) +{ + if (e->type == E_OR) { + expr_print_revdep(e->left.expr, fn, data); + expr_print_revdep(e->right.expr, fn, data); + } else { + fn(data, NULL, " - "); + expr_print(e, fn, data, E_NONE); + fn(data, NULL, "\n"); + } +} + void expr_gstr_print_revdep(struct expr *e, struct gstr *gs) { - __expr_print(e, expr_print_gstr_helper, gs, E_NONE, true); + expr_print_revdep(e, expr_print_gstr_helper, gs); } diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c index 36cd3e1f1c28..02f46813e732 100644 --- a/scripts/kconfig/menu.c +++ b/scripts/kconfig/menu.c @@ -829,15 +829,15 @@ static void get_symbol_str(struct gstr *r, struct symbol *sym, get_symbol_props_str(r, sym, P_SELECT, _(" Selects: ")); if (sym->rev_dep.expr) { str_append(r, _(" Selected by: ")); - expr_gstr_print_revdep(sym->rev_dep.expr, r); str_append(r, "\n"); + expr_gstr_print_revdep(sym->rev_dep.expr, r); } get_symbol_props_str(r, sym, P_IMPLY, _(" Implies: ")); if (sym->implied.expr) { str_append(r, _(" Implied by: ")); - expr_gstr_print_revdep(sym->implied.expr, r); str_append(r, "\n"); + expr_gstr_print_revdep(sym->implied.expr, r); } str_append(r, "\n\n"); -- cgit v1.2.3