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[SCSI] use default attributes for scsi_host

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This patch removes the unused sysfs attibute overwriting logic for
the scsi host attibutes, and plugs them into the driver core default
attribute creation.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Hannes Reinecke 2008-03-18 14:32:28 +01:00 committed by James Bottomley
parent 352f6bb422
commit f7120a4f75
3 changed files with 25 additions and 61 deletions
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1
drivers/scsi/hosts.c
View File

@ -398,6 +398,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
shost->shost_dev.class = &shost_class;
snprintf(shost->shost_dev.bus_id, BUS_ID_SIZE, "host%d",
shost->host_no);
shost->shost_dev.groups = scsi_sysfs_shost_attr_groups;
shost->ehandler = kthread_run(scsi_error_handler, shost,
"scsi_eh_%d", shost->host_no);

1
drivers/scsi/scsi_priv.h
View File

@ -121,6 +121,7 @@ extern struct scsi_transport_template blank_transport_template;
extern void __scsi_remove_device(struct scsi_device *);
extern struct bus_type scsi_bus_type;
extern struct attribute_group *scsi_sysfs_shost_attr_groups[];
/* scsi_netlink.c */
#ifdef CONFIG_SCSI_NETLINK

84
drivers/scsi/scsi_sysfs.c
View File

@ -251,18 +251,27 @@ shost_rd_attr(sg_tablesize, "%hu\n");
shost_rd_attr(unchecked_isa_dma, "%d\n");
shost_rd_attr2(proc_name, hostt->proc_name, "%s\n");
static struct device_attribute *scsi_sysfs_shost_attrs[] = {
&dev_attr_unique_id,
&dev_attr_host_busy,
&dev_attr_cmd_per_lun,
&dev_attr_can_queue,
&dev_attr_sg_tablesize,
&dev_attr_unchecked_isa_dma,
&dev_attr_proc_name,
&dev_attr_scan,
&dev_attr_hstate,
&dev_attr_supported_mode,
&dev_attr_active_mode,
static struct attribute *scsi_sysfs_shost_attrs[] = {
&dev_attr_unique_id.attr,
&dev_attr_host_busy.attr,
&dev_attr_cmd_per_lun.attr,
&dev_attr_can_queue.attr,
&dev_attr_sg_tablesize.attr,
&dev_attr_unchecked_isa_dma.attr,
&dev_attr_proc_name.attr,
&dev_attr_scan.attr,
&dev_attr_hstate.attr,
&dev_attr_supported_mode.attr,
&dev_attr_active_mode.attr,
NULL
};
struct attribute_group scsi_shost_attr_group = {
.attrs = scsi_sysfs_shost_attrs,
};
struct attribute_group *scsi_sysfs_shost_attr_groups[] = {
&scsi_shost_attr_group,
NULL
};
@ -990,44 +999,6 @@ int scsi_register_interface(struct class_interface *intf)
}
EXPORT_SYMBOL(scsi_register_interface);
static struct device_attribute *class_attr_overridden(
struct device_attribute **attrs,
struct device_attribute *attr)
{
int i;
if (!attrs)
return NULL;
for (i = 0; attrs[i]; i++)
if (!strcmp(attrs[i]->attr.name, attr->attr.name))
return attrs[i];
return NULL;
}
static int class_attr_add(struct device *classdev,
struct device_attribute *attr)
{
struct device_attribute *base_attr;
/*
* Spare the caller from having to copy things it's not interested in.
*/
base_attr = class_attr_overridden(scsi_sysfs_shost_attrs, attr);
if (base_attr) {
/* extend permissions */
attr->attr.mode |= base_attr->attr.mode;
/* override null show/store with default */
if (!attr->show)
attr->show = base_attr->show;
if (!attr->store)
attr->store = base_attr->store;
}
return device_create_file(classdev, attr);
}
/**
* scsi_sysfs_add_host - add scsi host to subsystem
* @shost: scsi host struct to add to subsystem
@ -1037,20 +1008,11 @@ int scsi_sysfs_add_host(struct Scsi_Host *shost)
{
int error, i;
/* add host specific attributes */
if (shost->hostt->shost_attrs) {
for (i = 0; shost->hostt->shost_attrs[i]; i++) {
error = class_attr_add(&shost->shost_dev,
shost->hostt->shost_attrs[i]);
if (error)
return error;
}
}
for (i = 0; scsi_sysfs_shost_attrs[i]; i++) {
if (!class_attr_overridden(shost->hostt->shost_attrs,
scsi_sysfs_shost_attrs[i])) {
error = device_create_file(&shost->shost_dev,
scsi_sysfs_shost_attrs[i]);
shost->hostt->shost_attrs[i]);
if (error)
return error;
}