path: root/scripts/kconfig/symbol.c
diff options
authorArnaud Lacombe <lacombar@gmail.com>2010-09-26 16:24:08 -0400
committerMichal Marek <mmarek@suse.cz>2010-12-21 17:59:14 +0100
commit1137c56b7420c801147e0863845c03b07554721a (patch)
tree73f1decaebc5a2825e04b30569b0a97595397360 /scripts/kconfig/symbol.c
parentab60bd0b92ec57c98df08616b7d0664be5551eae (diff)
kconfig: simplify select-with-unmet-direct-dependency warning
This is an attempt to simplify the expressing printed by kconfig when a symbol is selected but still has direct unmet dependency. First, the symbol reverse dependency is split in sub-expression. Then, each sub-expression is checked to ensure that it does not contains the unmet dependency. This removes the false-positive symbols and fixed symbol which already have the correct dependency. Finally, only the symbol responsible of the "select" is printed, instead of its full dependency tree. CC: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/kconfig/symbol.c')
1 files changed, 5 insertions, 1 deletions
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 60830ce4a0a..fa52e6f44ac 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -351,12 +351,16 @@ void sym_calc_value(struct symbol *sym)
if (sym->dir_dep.tri == no && sym->rev_dep.tri != no) {
+ struct expr *e;
+ e = expr_simplify_unmet_dep(sym->rev_dep.expr,
+ sym->dir_dep.expr);
fprintf(stderr, "warning: (");
- expr_fprint(sym->rev_dep.expr, stderr);
+ expr_fprint(e, stderr);
fprintf(stderr, ") selects %s which has unmet direct dependencies (",
expr_fprint(sym->dir_dep.expr, stderr);
fprintf(stderr, ")\n");
+ expr_free(e);
newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);