UPSTREAM: HID: add hid_is_usb() function to make it simpler for USB detection
A number of HID drivers already call hid_is_using_ll_driver() but only
for the detection of if this is a USB device or not. Make this more
obvious by creating hid_is_usb() and calling the function that way.
Also converts the existing hid_is_using_ll_driver() functions to use the
new call.
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211201183503.2373082-1-gregkh@linuxfoundation.org
(cherry picked from commit f83baa0cb6cfc92ebaf7f9d3a99d7e34f2e77a8a)
Bug: 188677105
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibfa4252d4b6501a09a997bb9efbab46fae3fd1dc
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index c183caf..f85c6e3 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -918,8 +918,7 @@
if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
drvdata->tp = &asus_i2c_tp;
- if ((drvdata->quirks & QUIRK_T100_KEYBOARD) &&
- hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
+ if ((drvdata->quirks & QUIRK_T100_KEYBOARD) && hid_is_usb(hdev)) {
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
@@ -947,8 +946,7 @@
drvdata->tp = &asus_t100chi_tp;
}
- if ((drvdata->quirks & QUIRK_MEDION_E1239T) &&
- hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
+ if ((drvdata->quirks & QUIRK_MEDION_E1239T) && hid_is_usb(hdev)) {
struct usb_host_interface *alt =
to_usb_interface(hdev->dev.parent)->altsetting;
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 271bd8d..a311b0a 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -1693,7 +1693,7 @@
case recvr_type_27mhz: no_dj_interfaces = 2; break;
case recvr_type_bluetooth: no_dj_interfaces = 2; break;
}
- if (hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
+ if (hid_is_usb(hdev)) {
intf = to_usb_interface(hdev->dev.parent);
if (intf && intf->altsetting->desc.bInterfaceNumber >=
no_dj_interfaces) {
diff --git a/drivers/hid/hid-u2fzero.c b/drivers/hid/hid-u2fzero.c
index 95e0807..6f107e3 100644
--- a/drivers/hid/hid-u2fzero.c
+++ b/drivers/hid/hid-u2fzero.c
@@ -286,7 +286,7 @@
unsigned int minor;
int ret;
- if (!hid_is_using_ll_driver(hdev, &usb_hid_driver))
+ if (!hid_is_usb(hdev))
return -EINVAL;
dev = devm_kzalloc(&hdev->dev, sizeof(*dev), GFP_KERNEL);
diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
index d26d8cd..dd05bed4 100644
--- a/drivers/hid/hid-uclogic-params.c
+++ b/drivers/hid/hid-uclogic-params.c
@@ -841,8 +841,7 @@
struct uclogic_params p = {0, };
/* Check arguments */
- if (params == NULL || hdev == NULL ||
- !hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
+ if (params == NULL || hdev == NULL || !hid_is_usb(hdev)) {
rc = -EINVAL;
goto cleanup;
}
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 73dafa6..e94ec84 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -2217,7 +2217,7 @@
if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) {
char *product_name = wacom->hdev->name;
- if (hid_is_using_ll_driver(wacom->hdev, &usb_hid_driver)) {
+ if (hid_is_usb(wacom->hdev)) {
struct usb_interface *intf = to_usb_interface(wacom->hdev->dev.parent);
struct usb_device *dev = interface_to_usbdev(intf);
product_name = dev->product;
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 6ed2a97e..fc56d53 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -833,6 +833,11 @@
return hdev->ll_driver == driver;
}
+static inline bool hid_is_usb(struct hid_device *hdev)
+{
+ return hid_is_using_ll_driver(hdev, &usb_hid_driver);
+}
+
#define PM_HINT_FULLON 1<<5
#define PM_HINT_NORMAL 1<<1
