#include <linux/module.h>
#include <linux/reboot.h>
+#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/moduleparam.h>
} /* End tw_state_request_start() */
/* Show some statistics about the card */
-static ssize_t tw_show_stats(struct class_device *class_dev, char *buf)
+static ssize_t tw_show_stats(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- struct Scsi_Host *host = class_to_shost(class_dev);
+ struct Scsi_Host *host = class_to_shost(dev);
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
unsigned long flags = 0;
ssize_t len;
} /* End tw_change_queue_depth() */
/* Create sysfs 'stats' entry */
-static struct class_device_attribute tw_host_stats_attr = {
+static struct device_attribute tw_host_stats_attr = {
.attr = {
.name = "stats",
.mode = S_IRUGO,
};
/* Host attributes initializer */
-static struct class_device_attribute *tw_host_attrs[] = {
+static struct device_attribute *tw_host_attrs[] = {
&tw_host_stats_attr,
NULL,
};
} /* End tw_chrdev_ioctl() */
/* This function handles open for the character device */
+/* NOTE that this function races with remove. */
static int tw_chrdev_open(struct inode *inode, struct file *file)
{
unsigned int minor_number;
+ cycle_kernel_lock();
dprintk(KERN_WARNING "3w-xxxx: tw_ioctl_open()\n");
minor_number = iminor(inode);
static void tw_transfer_internal(TW_Device_Extension *tw_dev, int request_id,
void *data, unsigned int len)
{
- struct scsi_cmnd *cmd = tw_dev->srb[request_id];
- unsigned long flags;
-
- local_irq_save(flags);
- scsi_sg_copy_from_buffer(cmd, data, len);
- local_irq_restore(flags);
+ scsi_sg_copy_from_buffer(tw_dev->srb[request_id], data, len);
}
/* This function is called by the isr to complete an inquiry command */
}
tw_dev = (TW_Device_Extension *)host->hostdata;
- memset(tw_dev, 0, sizeof(TW_Device_Extension));
-
/* Save values to device extension */
tw_dev->host = host;
tw_dev->tw_pci_dev = pdev;