const char *subsystem;
subsystem = udev_device_get_subsystem(parent);
- if (subsystem == NULL || strcmp(subsystem, subsys) != 0)
+ if (subsystem == NULL || !streq(subsystem, subsys))
break;
dev = parent;
parent = udev_device_get_parent(parent);
const char *id;
devtype = udev_device_get_devtype(parent);
- if (devtype == NULL || strcmp(devtype, "scsi_device") != 0)
+ if (devtype == NULL || !streq(devtype, "scsi_device"))
return parent;
/* firewire */
goto out;
}
- /* lousy scsi sysfs does not have a "subsystem" for the transport */
+ /* scsi sysfs does not have a "subsystem" for the transport */
name = udev_device_get_syspath(parent);
if (strstr(name, "/rport-") != NULL) {
}
/*
- * We do not support the ATA transport class, it creates duplicated link
- * names as the fake SCSI host adapters are all separated, they are all
- * re-based as host == 0. ATA should just stop faking two duplicated
- * hierarchies for a single topology and leave the SCSI stuff alone;
- * until that happens, there are no by-path/ links for ATA devices behind
- * an ATA transport class.
+ * We do not support the ATA transport class, it uses global counters
+ * to name the ata devices which numbers spread across multiple
+ * controllers.
+ *
+ * The real link numbers are not exported. Also, possible chains of ports
+ * behind port multipliers cannot be composed that way.
+ *
+ * Until all that is solved at the kernel level, there are no by-path/
+ * links for ATA devices.
*/
if (strstr(name, "/ata") != NULL) {
parent = NULL;
devtype = udev_device_get_devtype(parent);
if (devtype == NULL)
return parent;
- if (strcmp(devtype, "usb_interface") != 0 && strcmp(devtype, "usb_device") != 0)
+ if (!streq(devtype, "usb_interface") && !streq(devtype, "usb_device"))
return parent;
str = udev_device_get_sysname(parent);
subsys = udev_device_get_subsystem(parent);
if (subsys == NULL) {
;
- } else if (strcmp(subsys, "scsi_tape") == 0) {
+ } else if (streq(subsys, "scsi_tape")) {
handle_scsi_tape(parent, &path);
- } else if (strcmp(subsys, "scsi") == 0) {
+ } else if (streq(subsys, "scsi")) {
parent = handle_scsi(parent, &path);
some_transport = true;
- } else if (strcmp(subsys, "cciss") == 0) {
+ } else if (streq(subsys, "cciss")) {
parent = handle_cciss(parent, &path);
some_transport = true;
- } else if (strcmp(subsys, "usb") == 0) {
+ } else if (streq(subsys, "usb")) {
parent = handle_usb(parent, &path);
some_transport = true;
- } else if (strcmp(subsys, "serio") == 0) {
+ } else if (streq(subsys, "serio")) {
path_prepend(&path, "serio-%s", udev_device_get_sysnum(parent));
parent = skip_subsystem(parent, "serio");
- } else if (strcmp(subsys, "pci") == 0) {
+ } else if (streq(subsys, "pci")) {
path_prepend(&path, "pci-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "pci");
- } else if (strcmp(subsys, "platform") == 0) {
+ } else if (streq(subsys, "platform")) {
path_prepend(&path, "platform-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "platform");
some_transport = true;
- } else if (strcmp(subsys, "acpi") == 0) {
+ } else if (streq(subsys, "acpi")) {
path_prepend(&path, "acpi-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "acpi");
- } else if (strcmp(subsys, "xen") == 0) {
+ } else if (streq(subsys, "xen")) {
path_prepend(&path, "xen-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "xen");
- } else if (strcmp(subsys, "virtio") == 0) {
+ } else if (streq(subsys, "virtio")) {
path_prepend(&path, "virtio-pci-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "virtio");
- } else if (strcmp(subsys, "scm") == 0) {
+ } else if (streq(subsys, "scm")) {
path_prepend(&path, "scm-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "scm");
}