From: Ye Bin <yebin10@xxxxxxxxxx>
Actually, set scsi host state by sysfs may lead to functional issues.
So forbid to set scsi host state.
Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx>
---
drivers/scsi/scsi_sysfs.c | 26 +-------------------------
1 file changed, 1 insertion(+), 25 deletions(-)
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index ee28f73af4d4..903aa9de46e5 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -195,30 +195,6 @@ store_scan(struct device *dev, struct device_attribute *attr,
};
static DEVICE_ATTR(scan, S_IWUSR, NULL, store_scan);
-static ssize_t
-store_shost_state(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int i;
- struct Scsi_Host *shost = class_to_shost(dev);
- enum scsi_host_state state = 0;
-
- for (i = 0; i < ARRAY_SIZE(shost_states); i++) {
- const int len = strlen(shost_states[i].name);
- if (strncmp(shost_states[i].name, buf, len) == 0 &&
- buf[len] == '\n') {
- state = shost_states[i].value;
- break;
- }
- }
- if (!state)
- return -EINVAL;
-
- if (scsi_host_set_state(shost, state))
- return -EINVAL;
- return count;
-}
-
static ssize_t
show_shost_state(struct device *dev, struct device_attribute *attr, char *buf)
{
@@ -233,7 +209,7 @@ show_shost_state(struct device *dev, struct device_attribute *attr, char *buf)
/* DEVICE_ATTR(state) clashes with dev_attr_state for sdev */
static struct device_attribute dev_attr_hstate =
- __ATTR(state, S_IRUGO | S_IWUSR, show_shost_state, store_shost_state);
+ __ATTR(state, S_IRUGO, show_shost_state, NULL);
static ssize_t
show_shost_mode(unsigned int mode, char *buf)
--
2.31.1
