Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig

* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig:
  kconfig: Simplify LSMOD= handling
  kconfig: Add LSMOD=file to override the lsmod for localmodconfig
  kconfig: Look in both /bin and /sbin for lsmod in streamline_config.pl
  kconfig: Check for if conditions in Kconfig for localmodconfig
  kconfig: Create include/generated for localmodconfig

2 files changed, 69 insertions, 4 deletions

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 999e8a7d5bf..186c46604d0 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -30,8 +30,17 @@ silentoldconfig: $(obj)/conf
 	$(Q)mkdir -p include/generated
 	$< -s $(Kconfig)
 
+# if no path is given, then use src directory to find file
+ifdef LSMOD
+LSMOD_F := $(LSMOD)
+ifeq ($(findstring /,$(LSMOD)),)
+  LSMOD_F := $(objtree)/$(LSMOD)
+endif
+endif
+
 localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
-	$(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
+	$(Q)mkdir -p include/generated
+	$(Q)perl $< $(srctree) $(Kconfig) $(LSMOD_F) > .tmp.config
 	$(Q)if [ -f .config ]; then 				\
 			cmp -s .tmp.config .config ||		\
 			(mv -f .config .config.old.1;		\
@@ -45,7 +54,8 @@ localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
 	$(Q)rm -f .tmp.config
 
 localyesconfig: $(obj)/streamline_config.pl $(obj)/conf
-	$(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
+	$(Q)mkdir -p include/generated
+	$(Q)perl $< $(srctree) $(Kconfig) $(LSMOD_F) > .tmp.config
 	$(Q)sed -i s/=m/=y/ .tmp.config
 	$(Q)if [ -f .config ]; then 				\
 			cmp -s .tmp.config .config ||		\
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index 0d800820c3c..afbd54ac1d8 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -113,6 +113,7 @@ find_config;
 # Get the build source and top level Kconfig file (passed in)
 my $ksource = $ARGV[0];
 my $kconfig = $ARGV[1];
+my $lsmod_file = $ARGV[2];
 
 my @makefiles = `find $ksource -name Makefile`;
 my %depends;
@@ -121,6 +122,8 @@ my %prompts;
 my %objects;
 my $var;
 my $cont = 0;
+my $iflevel = 0;
+my @ifdeps;
 
 # prevent recursion
 my %read_kconfigs;
@@ -146,6 +149,15 @@ sub read_kconfig {
 	    $state = "NEW";
 	    $config = $1;
 
+	    for (my $i = 0; $i < $iflevel; $i++) {
+		if ($i) {
+		    $depends{$config} .= " " . $ifdeps[$i];
+		} else {
+		    $depends{$config} = $ifdeps[$i];
+		}
+		$state = "DEP";
+	    }
+
 	# collect the depends for the config
 	} elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
 	    $state = "DEP";
@@ -166,6 +178,21 @@ sub read_kconfig {
 	    # note if the config has a prompt
 	    $prompt{$config} = 1;
 
+	# Check for if statements
+	} elsif (/^if\s+(.*\S)\s*$/) {
+	    my $deps = $1;
+	    # remove beginning and ending non text
+	    $deps =~ s/^[^a-zA-Z0-9_]*//;
+	    $deps =~ s/[^a-zA-Z0-9_]*$//;
+
+	    my @deps = split /[^a-zA-Z0-9_]+/, $deps;
+
+	    $ifdeps[$iflevel++] = join ':', @deps;
+
+	} elsif (/^endif/) {
+
+	    $iflevel-- if ($iflevel);
+
 	# stop on "help"
 	} elsif (/^\s*help\s*$/) {
 	    $state = "NONE";
@@ -237,8 +264,36 @@ foreach my $makefile (@makefiles) {
 
 my %modules;
 
-# see what modules are loaded on this system
-open(LIN,"/sbin/lsmod|") || die "Cant lsmod";
+if (defined($lsmod_file)) {
+    if ( ! -f $lsmod_file) {
+	die "$lsmod_file not found";
+    }
+    if ( -x $lsmod_file) {
+	# the file is executable, run it
+	open(LIN, "$lsmod_file|");
+    } else {
+	# Just read the contents
+	open(LIN, "$lsmod_file");
+    }
+} else {
+
+    # see what modules are loaded on this system
+    my $lsmod;
+
+    foreach $dir ( ("/sbin", "/bin", "/usr/sbin", "/usr/bin") ) {
+	if ( -x "$dir/lsmod" ) {
+	    $lsmod = "$dir/lsmod";
+	    last;
+	}
+}
+    if (!defined($lsmod)) {
+	# try just the path
+	$lsmod = "lsmod";
+    }
+
+    open(LIN,"$lsmod|") || die "Can not call lsmod with $lsmod";
+}
+
 while (<LIN>) {
 	next if (/^Module/);  # Skip the first line.
 	if (/^(\S+)/) {