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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-05-15 10:26:50 -0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-05-15 10:26:50 -0400
commit12e04ffcd93b25dfd726d46338c2ee7d23de556e (patch)
treef91479a62805619168994fd3ee55e3ffa23fc24e /drivers/hid/hid-debug.c
parent9eff37a8713939f218ab8bf0dc93f1d67af7b8b4 (diff)
parentf722406faae2d073cc1d01063d1123c35425939e (diff)
Merge tag 'v3.10-rc1' into stable/for-linus-3.10
Linux 3.10-rc1 * tag 'v3.10-rc1': (12273 commits) Linux 3.10-rc1 [SCSI] qla2xxx: Update firmware link in Kconfig file. [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type [SCSI] pm80xx: thermal, sas controller config and error handling update [SCSI] pm80xx: NCQ error handling changes [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers [SCSI] pm80xx: Changed module name and debug messages update [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files [SCSI] pm80xx: MSI-X implementation for using 64 interrupts [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve [SCSI] pm80xx: Multiple inbound/outbound queue configuration [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC [SCSI] lpfc: fix up Kconfig dependencies [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd dm cache: set config value dm cache: move config fns dm thin: generate event when metadata threshold passed ...
Diffstat (limited to 'drivers/hid/hid-debug.c')
-rw-r--r--drivers/hid/hid-debug.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 933fff0fff1..8453214ec37 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -579,18 +579,51 @@ void hid_debug_event(struct hid_device *hdev, char *buf)
{
int i;
struct hid_debug_list *list;
+ unsigned long flags;
+ spin_lock_irqsave(&hdev->debug_list_lock, flags);
list_for_each_entry(list, &hdev->debug_list, node) {
for (i = 0; i < strlen(buf); i++)
list->hid_debug_buf[(list->tail + i) % HID_DEBUG_BUFSIZE] =
buf[i];
list->tail = (list->tail + i) % HID_DEBUG_BUFSIZE;
}
+ spin_unlock_irqrestore(&hdev->debug_list_lock, flags);
wake_up_interruptible(&hdev->debug_wait);
}
EXPORT_SYMBOL_GPL(hid_debug_event);
+void hid_dump_report(struct hid_device *hid, int type, u8 *data,
+ int size)
+{
+ struct hid_report_enum *report_enum;
+ char *buf;
+ unsigned int i;
+
+ buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
+
+ if (!buf)
+ return;
+
+ report_enum = hid->report_enum + type;
+
+ /* dump the report */
+ snprintf(buf, HID_DEBUG_BUFSIZE - 1,
+ "\nreport (size %u) (%snumbered) = ", size,
+ report_enum->numbered ? "" : "un");
+ hid_debug_event(hid, buf);
+
+ for (i = 0; i < size; i++) {
+ snprintf(buf, HID_DEBUG_BUFSIZE - 1,
+ " %02x", data[i]);
+ hid_debug_event(hid, buf);
+ }
+ hid_debug_event(hid, "\n");
+ kfree(buf);
+}
+EXPORT_SYMBOL_GPL(hid_dump_report);
+
void hid_dump_input(struct hid_device *hdev, struct hid_usage *usage, __s32 value)
{
char *buf;
@@ -945,6 +978,7 @@ static int hid_debug_events_open(struct inode *inode, struct file *file)
{
int err = 0;
struct hid_debug_list *list;
+ unsigned long flags;
if (!(list = kzalloc(sizeof(struct hid_debug_list), GFP_KERNEL))) {
err = -ENOMEM;
@@ -960,7 +994,9 @@ static int hid_debug_events_open(struct inode *inode, struct file *file)
file->private_data = list;
mutex_init(&list->read_mutex);
+ spin_lock_irqsave(&list->hdev->debug_list_lock, flags);
list_add_tail(&list->node, &list->hdev->debug_list);
+ spin_unlock_irqrestore(&list->hdev->debug_list_lock, flags);
out:
return err;
@@ -1054,8 +1090,11 @@ static unsigned int hid_debug_events_poll(struct file *file, poll_table *wait)
static int hid_debug_events_release(struct inode *inode, struct file *file)
{
struct hid_debug_list *list = file->private_data;
+ unsigned long flags;
+ spin_lock_irqsave(&list->hdev->debug_list_lock, flags);
list_del(&list->node);
+ spin_unlock_irqrestore(&list->hdev->debug_list_lock, flags);
kfree(list->hid_debug_buf);
kfree(list);