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From 3a63e2d29bb2fd92577d42aeb8fa956ae18df22e Mon Sep 17 00:00:00 2001
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From: Thomas Huth <thuth@redhat.com>
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Date: Fri, 2 Oct 2020 10:17:41 -0400
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Subject: [PATCH 02/14] qga/commands-posix: Move the udev code from the pci to
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 the generic function
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Thomas Huth <thuth@redhat.com>
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Message-id: <20201002101742.249169-3-thuth@redhat.com>
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Patchwork-id: 98526
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O-Subject: [RHEL-8.4.0 qemu-kvm PATCH 2/3] qga/commands-posix: Move the udev code from the pci to the generic function
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Bugzilla: 1755075
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RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Acked-by: David Hildenbrand <david@redhat.com>
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The libudev-related code is independent from the other pci-related code
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and can be re-used for non-pci devices (like ccw devices on s390x). Thus
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move this part to the generic function.
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Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1755075
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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(cherry picked from commit 43dadc431bacbc5a5baee7e256288a98a3e95ce3)
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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 qga/commands-posix.c | 62 +++++++++++++++++++++++---------------------
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 1 file changed, 33 insertions(+), 29 deletions(-)
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diff --git a/qga/commands-posix.c b/qga/commands-posix.c
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index 99d6b1c8c1..6db76aadd1 100644
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--- a/qga/commands-posix.c
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+++ b/qga/commands-posix.c
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@@ -878,10 +878,6 @@ static bool build_guest_fsinfo_for_pci_dev(char const *syspath,
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     GuestPCIAddress *pciaddr = disk->pci_controller;
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     bool has_ata = false, has_host = false, has_tgt = false;
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     char *p, *q, *driver = NULL;
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-#ifdef CONFIG_LIBUDEV
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-    struct udev *udev = NULL;
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-    struct udev_device *udevice = NULL;
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-#endif
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     bool ret = false;
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     p = strstr(syspath, "/devices/pci");
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@@ -940,26 +936,6 @@ static bool build_guest_fsinfo_for_pci_dev(char const *syspath,
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     pciaddr->slot = pci[2];
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     pciaddr->function = pci[3];
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-#ifdef CONFIG_LIBUDEV
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-    udev = udev_new();
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-    udevice = udev_device_new_from_syspath(udev, syspath);
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-    if (udev == NULL || udevice == NULL) {
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-        g_debug("failed to query udev");
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-    } else {
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-        const char *devnode, *serial;
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-        devnode = udev_device_get_devnode(udevice);
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-        if (devnode != NULL) {
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-            disk->dev = g_strdup(devnode);
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-            disk->has_dev = true;
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-        }
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-        serial = udev_device_get_property_value(udevice, "ID_SERIAL");
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-        if (serial != NULL && *serial != 0) {
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-            disk->serial = g_strdup(serial);
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-            disk->has_serial = true;
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-        }
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-    }
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-#endif
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-
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     if (strcmp(driver, "ata_piix") == 0) {
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         /* a host per ide bus, target*:0:<unit>:0 */
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         if (!has_host || !has_tgt) {
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@@ -1021,10 +997,6 @@ static bool build_guest_fsinfo_for_pci_dev(char const *syspath,
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 cleanup:
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     g_free(driver);
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-#ifdef CONFIG_LIBUDEV
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-    udev_unref(udev);
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-    udev_device_unref(udevice);
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-#endif
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     return ret;
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 }
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@@ -1037,18 +1009,50 @@ static void build_guest_fsinfo_for_real_device(char const *syspath,
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     GuestPCIAddress *pciaddr;
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     GuestDiskAddressList *list = NULL;
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     bool has_hwinf;
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+#ifdef CONFIG_LIBUDEV
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+    struct udev *udev = NULL;
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+    struct udev_device *udevice = NULL;
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+#endif
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     pciaddr = g_new0(GuestPCIAddress, 1);
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+    pciaddr->domain = -1;                       /* -1 means field is invalid */
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+    pciaddr->bus = -1;
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+    pciaddr->slot = -1;
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+    pciaddr->function = -1;
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     disk = g_new0(GuestDiskAddress, 1);
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     disk->pci_controller = pciaddr;
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+    disk->bus_type = GUEST_DISK_BUS_TYPE_UNKNOWN;
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     list = g_new0(GuestDiskAddressList, 1);
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     list->value = disk;
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+#ifdef CONFIG_LIBUDEV
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+    udev = udev_new();
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+    udevice = udev_device_new_from_syspath(udev, syspath);
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+    if (udev == NULL || udevice == NULL) {
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+        g_debug("failed to query udev");
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+    } else {
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+        const char *devnode, *serial;
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+        devnode = udev_device_get_devnode(udevice);
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+        if (devnode != NULL) {
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+            disk->dev = g_strdup(devnode);
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+            disk->has_dev = true;
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+        }
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+        serial = udev_device_get_property_value(udevice, "ID_SERIAL");
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+        if (serial != NULL && *serial != 0) {
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+            disk->serial = g_strdup(serial);
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+            disk->has_serial = true;
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+        }
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+    }
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+
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+    udev_unref(udev);
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+    udev_device_unref(udevice);
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+#endif
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+
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     has_hwinf = build_guest_fsinfo_for_pci_dev(syspath, disk, errp);
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-    if (has_hwinf) {
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+    if (has_hwinf || disk->has_dev || disk->has_serial) {
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         list->next = fs->disk;
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         fs->disk = list;
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     } else {
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-- 
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2.27.0
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