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kconfig_lint: restrict definition of defaults for choice elements 

Defining defaults for symbols used inside choices is not allowed. Add a
check for this, so we can drop the existent, overly restrictive checks
in the follow-up change.

Change-Id: I45bce2633dbd168fceb81ceae9b68621b28526e8
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57715
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Michael Niewöhner 2021-09-16 17:56:14 +02:00 committed by Felix Singer
parent dea4e0fe68
commit 90fcffb416
1 changed files with 9 additions and 0 deletions
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9
util/lint/kconfig_lint
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@ -371,6 +371,12 @@ sub check_defaults {
# Make sure there's a type set for the symbol
next if (!defined $symbols{$sym}{type});
# Symbols created/used inside a choice must not have a default set. The default is set by the choice itself.
if ($symbols{$sym}{choice}) {
show_error("Defining a default for symbol '$sym' at $filename:$line_no, used inside choice at "
. "$symbols{$sym}{choice_loc}, is not allowed.");
}
# skip good defaults
if (! ((($symbols{$sym}{type} eq "hex") && ($symbols{$sym}{$sym_num}{default}{$def_num}{default} =~ /^0x/)) ||
(($symbols{$sym}{type} eq "int") && ($symbols{$sym}{$sym_num}{default}{$def_num}{default} =~ /^[-0-9]+$/)) ||
@ -798,6 +804,9 @@ sub add_symbol {
$symbols{$symbol}{count} = 0;
if ($inside_choice) {
$symbols{$symbol}{choice} = 1;
# remember the location of the choice
$symbols{$symbol}{choice_loc} = join(':', (split / /, $inside_choice));
}
else {
$symbols{$symbol}{choice} = 0;