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authorSteven Rostedt <rostedt@goodmis.org>2013-04-29 15:18:38 -0400
committerSteven Rostedt <rostedt@goodmis.org>2013-04-29 15:41:51 -0400
commitced9cb1af1e3486cc14dca755a1b3fbadf06e90b (patch)
tree67501303c76d035fd8979ed073229c73fbaa1d17 /scripts/kconfig
parentbc20d12eca43028548e5a4f655c2070e57bede1c (diff)
downloadlinaro-lsk-ced9cb1af1e3486cc14dca755a1b3fbadf06e90b.tar.gz
localmodconfig: Process source kconfig files as they are found
A bug was reported that caused localmodconfig to not keep all the dependencies of ATH9K. This was caused by the kconfig file: In drivers/net/wireless/ath/Kconfig: --- if ATH_CARDS config ATH_DEBUG bool "Atheros wireless debugging" ---help--- Say Y, if you want to debug atheros wireless drivers. Right now only ath9k makes use of this. source "drivers/net/wireless/ath/ath5k/Kconfig" source "drivers/net/wireless/ath/ath9k/Kconfig" source "drivers/net/wireless/ath/carl9170/Kconfig" source "drivers/net/wireless/ath/ath6kl/Kconfig" source "drivers/net/wireless/ath/ar5523/Kconfig" source "drivers/net/wireless/ath/wil6210/Kconfig" endif --- The current way kconfig works, it processes new source files after the first file is completed. It creates an array of new source config files and when the one file is finished, it continues with the next file. Unfortunately, this means that it loses the fact that the source file is within an "if" statement, and this means that each of these source file's configs will not have the proper dependencies set. As ATH9K requires ATH_CARDS set, the localmodconfig did not see that dependency, and did not enable ATH_CARDS. When the oldconfig was run, it forced ATH9K to be disabled. Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1304291022320.9234@oneiric Cc: stable@vger.kernel.org # 3.8+ Reported-by: Robert P. J. Day <rpjday@crashcourse.ca> Tested-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'scripts/kconfig')
-rw-r--r--scripts/kconfig/streamline_config.pl17
1 files changed, 7 insertions, 10 deletions
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index 343a5686366..4606cdfb859 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -156,7 +156,6 @@ sub read_kconfig {
my $state = "NONE";
my $config;
- my @kconfigs;
my $cont = 0;
my $line;
@@ -190,7 +189,13 @@ sub read_kconfig {
# collect any Kconfig sources
if (/^source\s*"(.*)"/) {
- $kconfigs[$#kconfigs+1] = $1;
+ my $kconfig = $1;
+ # prevent reading twice.
+ if (!defined($read_kconfigs{$kconfig})) {
+ $read_kconfigs{$kconfig} = 1;
+ read_kconfig($kconfig);
+ }
+ next;
}
# configs found
@@ -250,14 +255,6 @@ sub read_kconfig {
}
}
close($kinfile);
-
- # read in any configs that were found.
- foreach my $kconfig (@kconfigs) {
- if (!defined($read_kconfigs{$kconfig})) {
- $read_kconfigs{$kconfig} = 1;
- read_kconfig($kconfig);
- }
- }
}
if ($kconfig) {