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-rwxr-xr-xconvert/uniquify-modalias.pl118
1 files changed, 118 insertions, 0 deletions
diff --git a/convert/uniquify-modalias.pl b/convert/uniquify-modalias.pl
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+#!/usr/bin/perl
+
+use lib qw(/usr/lib/libDrakX);
+use File::FnMatch;
+use MDK::Common;
+use list_modules;
+use modalias;
+
+my @ignored_modules = (
+ "ata_generic", #- prefer "generic" non-libata module or full implementation
+ "intelfb", "savagefb", "tdfxfb", qr/_agp$/,
+ qr/_rng$/,
+);
+my @preferred_modules = (
+ "ata_piix", #- prefer over ahci (arbitrary choice, install will try both), depends on BIOS setting
+ "bcm43xx", #- prefer over b43, b43legacy and ssb
+ "dpt_i2o", #- prefer over i2o_core
+ "dmfe", #- prefer over tulip, it only lists supported devices
+ "c4", #- subvendors listed in c4 driver seems not to be supported by DAC960
+ "i2c_viapro", #- prefer over via686a
+ "ipr", #- subvendors listed in ipr driver seems not to be supported by DAC960
+ "mxser_new", #- experimental clone of mxser
+ "pata_netcell", "pata_ns87410", #- no non-libata implementation, prefer over generic module
+ "prism54", #- prefer over p54pci
+ "rt2400", "rt2500", "rt2570", "rt61", "rt73", #- prefer legacy Ralink drivers
+ "skge", #- prefer over sk98lin
+ qr/^snd_/, #- prefer alsa drivers
+ "sx", #- prefer over specialix (sx matches subvendors)
+);
+my @depreciated_modules = (
+ "generic", #- prefer full implementation
+ "gspca", #- kernel hackers value it as poorly coded
+ "ir_usb", #- false positive because of pattern
+ qr/^pata_/, #- don't use libata drivers for now
+ "usb_storage", #- false positive because we don't use subvendors/subdevices
+);
+my @preferred_categories = (
+ "disk/ide",
+ "disk/scsi",
+);
+
+sub build_modalias {
+ my ($class, $vendor, $device) = @_;
+ {
+ pci => "pci:v0000${vendor}d0000${device}sv*sd*bc*i*",
+ usb => "usb:v${vendor}p${device}d*dc*dsc*dp*ic*isc*ip*",
+ }->{$class};
+}
+
+sub match_module {
+ my ($module, $pattern) = @_;
+ ref $pattern eq 'Regexp' ? $module =~ $pattern : $module eq $pattern;
+}
+
+sub grep_non_matching {
+ my ($modules, $list) = @_;
+ grep {
+ my $m = $_->[1];
+ every { !match_module($m, $_) } @$list;
+ } @$modules;
+}
+
+sub grep_matching {
+ my ($modules, $list) = @_;
+ grep {
+ my $m = $_->[1];
+ grep { match_module($m, $_) } @$list;
+ } @$modules;
+}
+
+sub print_module {
+ my ($modalias, $aliases, $class_other) = @_;
+ my @aliases = group_by2(@$aliases);
+ my @other = grep { File::FnMatch::fnmatch($_->[0], $modalias) } @$class_other;
+ my @modules = uniq_ { $_->[1] } @aliases, @other;
+ @modules > 1 or return;
+
+ my @non_ignored = grep_non_matching(\@modules, \@ignored_modules);
+ if (@non_ignored == 1) {
+ print "alias $modalias $non_ignored[0][1]\n";
+ return;
+ } elsif (@non_ignored == 0) {
+ print "alias $modalias off\n";
+ return;
+ }
+
+ @modules = @non_ignored;
+ my @non_depreciated = grep_non_matching(\@modules, \@depreciated_modules);
+ if (@non_depreciated == 1) {
+ print "alias $modalias $non_depreciated[0][1]\n";
+ return;
+ }
+
+ @modules = @non_depreciated if @non_depreciated > 1;
+ my @preferred = grep_matching(\@modules, \@preferred_modules);
+ @preferred or @preferred = grep { member(module2category($_->[1]), @preferred_categories) } @modules;
+ if (@preferred == 1) {
+ print "alias $modalias $preferred[0][1]\n";
+ return;
+ }
+
+ print STDERR "unable to choose for $modalias " . join(" ", map { $_->[1] } @modules) . "\n";
+}
+
+#- we are only interested in the last group:
+# /lib/modules/`uname -r`/modules.alias
+my $alias_group = top(modalias::get_alias_groups());
+
+foreach my $class (qw(pci pcmcia usb)) {
+ my @class_other = group_by2(@{$alias_group->{$class}{other}});
+ foreach my $vendor (sort(keys(%{$alias_group->{$class}}))) {
+ $vendor eq "other" and next;
+ foreach my $device (sort(keys(%{$alias_group->{$class}{$vendor}}))) {
+ my $modalias = build_modalias($class, $vendor, $device);
+ print_module($modalias, $alias_group->{$class}{$vendor}{$device}, \@class_other);
+ }
+ }
+}