Merge branch 'for-4.20/core' into for-linus

Fixes and new features for driver core. Highlights:

- maximum global item tag report size gets increased to 256
- improved INPUT_PROP reporting for Digitizer devices

1 files changed, 15 insertions, 4 deletions

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index a481eaf39e88..ad823a01bd65 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -758,6 +758,11 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 		break;
 
 	case HID_UP_DIGITIZER:
+		if ((field->application & 0xff) == 0x01) /* Digitizer */
+			__set_bit(INPUT_PROP_POINTER, input->propbit);
+		else if ((field->application & 0xff) == 0x02) /* Pen */
+			__set_bit(INPUT_PROP_DIRECT, input->propbit);
+
 		switch (usage->hid & 0xff) {
 		case 0x00: /* Undefined */
 			goto ignore;
@@ -1516,6 +1521,7 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid,
 	struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
 	struct input_dev *input_dev = input_allocate_device();
 	const char *suffix = NULL;
+	size_t suffix_len, name_len;
 
 	if (!hidinput || !input_dev)
 		goto fail;
@@ -1559,10 +1565,15 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid,
 	}
 
 	if (suffix) {
-		hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
-					   hid->name, suffix);
-		if (!hidinput->name)
-			goto fail;
+		name_len = strlen(hid->name);
+		suffix_len = strlen(suffix);
+		if ((name_len < suffix_len) ||
+		    strcmp(hid->name + name_len - suffix_len, suffix)) {
+			hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
+						   hid->name, suffix);
+			if (!hidinput->name)
+				goto fail;
+		}
 	}
 
 	input_set_drvdata(input_dev, hid);