[PATCH 7/7] HID: core: reset the quirks before calling probe again

From: Benjamin Tissoires
Date: Tue Mar 20 2018 - 07:09:11 EST


Given that now the quirk handling is done in hid-quirk.c, we can actually
reset the quirks before calling .probe(), so that the drivers do not need
to keep track of initial quirks.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
---
drivers/hid/hid-core.c | 2 ++
drivers/hid/hid-multitouch.c | 7 -------
2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 36af26c2565b..5d7cc6bbbac6 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1966,6 +1966,8 @@ static int hid_device_probe(struct device *dev)
}
}

+ /* reset the quirks that has been previously set */
+ hdev->quirks = hid_lookup_quirk(hdev);
hdev->driver = hdrv;
if (hdrv->probe) {
ret = hdrv->probe(hdev, id);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 639c44fc0691..dad2fbb0e3f8 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -127,7 +127,6 @@ struct mt_device {
int left_button_state; /* left button state */
unsigned last_slot_field; /* the last field of a slot */
unsigned mt_report_id; /* the report ID of the multitouch device */
- unsigned long initial_quirks; /* initial quirks state */
__s16 inputmode; /* InputMode HID feature, -1 if non-existent */
__s16 inputmode_index; /* InputMode HID feature index in the report */
__s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
@@ -1453,11 +1452,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
td->serial_maybe = true;

- /*
- * Store the initial quirk state
- */
- td->initial_quirks = hdev->quirks;
-
/* This allows the driver to correctly support devices
* that emit events over several HID messages.
*/
@@ -1527,7 +1521,6 @@ static void mt_remove(struct hid_device *hdev)

sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
hid_hw_stop(hdev);
- hdev->quirks = td->initial_quirks;
}

/*
--
2.14.3