[pve-devel] [PATCH guest-common v2 2/5] mapping: pci: rework properties check

[Dominik Csapak <d.csapak@proxmox.com>]

refactors the actual checking out to its own sub, so we can reuse it
later

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
 src/PVE/Mapping/PCI.pm | 43 +++++++++++++++++++++++++-----------------
 1 file changed, 26 insertions(+), 17 deletions(-)

diff --git a/src/PVE/Mapping/PCI.pm b/src/PVE/Mapping/PCI.pm
index 725e106..fcf07c0 100644
--- a/src/PVE/Mapping/PCI.pm
+++ b/src/PVE/Mapping/PCI.pm
@@ -129,6 +129,26 @@ sub options {
     };
 }
 
+my sub check_properties {
+    my ($correct, $configured, $path, $name) = @_;
+    for my $prop (sort keys %$correct) {
+	next if !defined($correct->{$prop}) && !defined($configured->{$prop});
+
+	die "no '$prop' for device '$path'\n"
+	    if defined($correct->{$prop}) && !defined($configured->{$prop});
+	die "'$prop' configured but should not be\n"
+	    if !defined($correct->{$prop}) && defined($configured->{$prop});
+
+	my $correct_prop = $correct->{$prop};
+	$correct_prop =~ s/0x//g;
+	my $configured_prop = $configured->{$prop};
+	$configured_prop =~ s/0x//g;
+
+	die "'$prop' does not match for '$name' ($correct_prop != $configured_prop)\n"
+	    if $correct_prop ne $configured_prop;
+    }
+}
+
 # checks if the given config is valid for the current node
 sub assert_valid {
     my ($name, $cfg) = @_;
@@ -150,30 +170,19 @@ sub assert_valid {
 
 	my $correct_props = {
 	    id => "$info->{vendor}:$info->{device}",
-	    iommugroup => $info->{iommugroup},
 	};
 
+	# check iommu only on the first device
+	if ($idx == 0) {
+	    $correct_props->{iommugroup} = $info->{iommugroup};
+	}
+
 	if (defined($info->{'subsystem_vendor'}) && defined($info->{'subsystem_device'})) {
 	    $correct_props->{'subsystem-id'} = "$info->{'subsystem_vendor'}:$info->{'subsystem_device'}";
 	}
 
-	for my $prop (sort keys %$correct_props) {
-	    next if $prop eq 'iommugroup' && $idx > 0; # check iommu only on the first device
-
-	    next if !defined($correct_props->{$prop}) && !defined($cfg->{$prop});
-	    die "no '$prop' for device '$path'\n"
-		if defined($correct_props->{$prop}) && !defined($cfg->{$prop});
-	    die "'$prop' configured but should not be\n"
-		if !defined($correct_props->{$prop}) && defined($cfg->{$prop});
+	check_properties($correct_props, $cfg, $path, $name);
 
-	    my $correct_prop = $correct_props->{$prop};
-	    $correct_prop =~ s/0x//g;
-	    my $configured_prop = $cfg->{$prop};
-	    $configured_prop =~ s/0x//g;
-
-	    die "'$prop' does not match for '$name' ($correct_prop != $configured_prop)\n"
-		if $correct_prop ne $configured_prop;
-	}
 	$idx++;
     }
 
-- 
2.39.2