* [PATCH 1/4] Revert "HID: Increase maximum report size allowed by hid_field_extract()"
2019-06-05 12:44 [PATCH 0/4] few reverts and fixes for 5.2 Benjamin Tissoires
@ 2019-06-05 12:44 ` Benjamin Tissoires
2019-06-05 12:44 ` [PATCH 2/4] Revert "HID: core: Do not call request_module() in async context" Benjamin Tissoires
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Benjamin Tissoires @ 2019-06-05 12:44 UTC (permalink / raw)
To: Jiri Kosina, Hans de Goede, Dave Hansen, Kai-Heng Feng
Cc: linux-input, linux-kernel, Benjamin Tissoires, stable
This reverts commit 94a9992f7dbdfb28976b565af220e0c4a117144a.
The commit allows for more than 32 bits in hid_field_extract(),
but the return value is a 32 bits int.
So basically what this commit is doing is just silencing those
legitimate errors.
Revert to a previous situation in the hope that a proper
fix will be impletemented.
Fixes: 94a9992f7dbd ("HID: Increase maximum report size allowed by hid_field_extract()")
Cc: stable@vger.kernel.org # v5.1
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
---
drivers/hid/hid-core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 08d310723e96..205d6b82a706 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1311,10 +1311,10 @@ static u32 __extract(u8 *report, unsigned offset, int n)
u32 hid_field_extract(const struct hid_device *hid, u8 *report,
unsigned offset, unsigned n)
{
- if (n > 256) {
- hid_warn(hid, "hid_field_extract() called with n (%d) > 256! (%s)\n",
+ if (n > 32) {
+ hid_warn(hid, "hid_field_extract() called with n (%d) > 32! (%s)\n",
n, current->comm);
- n = 256;
+ n = 32;
}
return __extract(report, offset, n);
--
2.19.2
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 2/4] Revert "HID: core: Do not call request_module() in async context"
2019-06-05 12:44 [PATCH 0/4] few reverts and fixes for 5.2 Benjamin Tissoires
2019-06-05 12:44 ` [PATCH 1/4] Revert "HID: Increase maximum report size allowed by hid_field_extract()" Benjamin Tissoires
@ 2019-06-05 12:44 ` Benjamin Tissoires
2019-06-05 12:44 ` [PATCH 3/4] Revert "HID: core: Call request_module before doing device_add" Benjamin Tissoires
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Benjamin Tissoires @ 2019-06-05 12:44 UTC (permalink / raw)
To: Jiri Kosina, Hans de Goede, Dave Hansen, Kai-Heng Feng
Cc: linux-input, linux-kernel, Benjamin Tissoires
This reverts commit 4ceabaf7909d109db6afbffc4ed182741fc32043.
This patch and a025a18fe are giving extended timeouts
on boot for at least Ubuntu and OpenSuse.
Revert them until we get a better fix.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
---
drivers/hid/hid-core.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 205d6b82a706..fd9e7a4c107d 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -27,7 +27,6 @@
#include <linux/vmalloc.h>
#include <linux/sched.h>
#include <linux/semaphore.h>
-#include <linux/async.h>
#include <linux/hid.h>
#include <linux/hiddev.h>
@@ -2367,9 +2366,8 @@ int hid_add_device(struct hid_device *hdev)
* not first have hid-generic binding only to have it replaced
* immediately afterwards with a specialized driver.
*/
- if (!current_is_async())
- request_module("hid:b%04Xg%04Xv%08Xp%08X", hdev->bus,
- hdev->group, hdev->vendor, hdev->product);
+ request_module("hid:b%04Xg%04Xv%08Xp%08X",
+ hdev->bus, hdev->group, hdev->vendor, hdev->product);
hid_debug_register(hdev, dev_name(&hdev->dev));
ret = device_add(&hdev->dev);
--
2.19.2
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 4/4] HID: logitech-dj: Fix 064d:c52f receiver support
2019-06-05 12:44 [PATCH 0/4] few reverts and fixes for 5.2 Benjamin Tissoires
` (2 preceding siblings ...)
2019-06-05 12:44 ` [PATCH 3/4] Revert "HID: core: Call request_module before doing device_add" Benjamin Tissoires
@ 2019-06-05 12:44 ` Benjamin Tissoires
2019-06-05 13:07 ` [PATCH 0/4] few reverts and fixes for 5.2 Jiri Kosina
4 siblings, 0 replies; 6+ messages in thread
From: Benjamin Tissoires @ 2019-06-05 12:44 UTC (permalink / raw)
To: Jiri Kosina, Hans de Goede, Dave Hansen, Kai-Heng Feng
Cc: linux-input, linux-kernel, Benjamin Tissoires
From: Hans de Goede <hdegoede@redhat.com>
The c52f nano receiver is a mouse only receiver. This means that it needs
some special handling compared to the c534 nano receiver:
1) It sends unnumbered mouse reports with a size of 8 bytes, so we need
to extend the unnumbered mouse report handling to support reports upto
8 bytes large
2) It mouse reports have the same high-resolution format as those from the
gaming mouse receivers
3) It can report consumer/multimedia buttons on its second interface, since
this is a mouse-only receiver these must be forwarded to the mouse child
device and not to the keyboard child-device (which will not exist)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203619
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
---
drivers/hid/hid-logitech-dj.c | 42 ++++++++++++++++++++++-------------
1 file changed, 27 insertions(+), 15 deletions(-)
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 41baa4dbbfcc..c48e7030d3c9 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -128,6 +128,7 @@ enum recvr_type {
recvr_type_dj,
recvr_type_hidpp,
recvr_type_gaming_hidpp,
+ recvr_type_mouse_only,
recvr_type_27mhz,
recvr_type_bluetooth,
};
@@ -879,9 +880,12 @@ static void logi_dj_recv_queue_notification(struct dj_receiver_dev *djrcv_dev,
schedule_work(&djrcv_dev->work);
}
-static void logi_hidpp_dev_conn_notif_equad(struct hidpp_event *hidpp_report,
+static void logi_hidpp_dev_conn_notif_equad(struct hid_device *hdev,
+ struct hidpp_event *hidpp_report,
struct dj_workitem *workitem)
{
+ struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
+
workitem->type = WORKITEM_TYPE_PAIRED;
workitem->device_type = hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
HIDPP_DEVICE_TYPE_MASK;
@@ -895,6 +899,8 @@ static void logi_hidpp_dev_conn_notif_equad(struct hidpp_event *hidpp_report,
break;
case REPORT_TYPE_MOUSE:
workitem->reports_supported |= STD_MOUSE | HIDPP;
+ if (djrcv_dev->type == recvr_type_mouse_only)
+ workitem->reports_supported |= MULTIMEDIA;
break;
}
}
@@ -938,7 +944,7 @@ static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
case 0x01:
device_type = "Bluetooth";
/* Bluetooth connect packet contents is the same as (e)QUAD */
- logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
if (!(hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
HIDPP_MANUFACTURER_MASK)) {
hid_info(hdev, "Non Logitech device connected on slot %d\n",
@@ -952,18 +958,18 @@ static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
break;
case 0x03:
device_type = "QUAD or eQUAD";
- logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
break;
case 0x04:
device_type = "eQUAD step 4 DJ";
- logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
break;
case 0x05:
device_type = "DFU Lite";
break;
case 0x06:
device_type = "eQUAD step 4 Lite";
- logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
break;
case 0x07:
device_type = "eQUAD step 4 Gaming";
@@ -973,11 +979,11 @@ static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
break;
case 0x0a:
device_type = "eQUAD nano Lite";
- logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
break;
case 0x0c:
device_type = "eQUAD Lightspeed";
- logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
workitem.reports_supported |= STD_KEYBOARD;
break;
}
@@ -1330,7 +1336,8 @@ static int logi_dj_ll_parse(struct hid_device *hid)
if (djdev->reports_supported & STD_MOUSE) {
dbg_hid("%s: sending a mouse descriptor, reports_supported: %llx\n",
__func__, djdev->reports_supported);
- if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp)
+ if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp ||
+ djdev->dj_receiver_dev->type == recvr_type_mouse_only)
rdcat(rdesc, &rsize, mse_high_res_descriptor,
sizeof(mse_high_res_descriptor));
else if (djdev->dj_receiver_dev->type == recvr_type_27mhz)
@@ -1573,15 +1580,19 @@ static int logi_dj_raw_event(struct hid_device *hdev,
data[0] = data[1];
data[1] = 0;
}
- /* The 27 MHz mouse-only receiver sends unnumbered mouse data */
+ /*
+ * Mouse-only receivers send unnumbered mouse data. The 27 MHz
+ * receiver uses 6 byte packets, the nano receiver 8 bytes.
+ */
if (djrcv_dev->unnumbered_application == HID_GD_MOUSE &&
- size == 6) {
- u8 mouse_report[7];
+ size <= 8) {
+ u8 mouse_report[9];
/* Prepend report id */
mouse_report[0] = REPORT_TYPE_MOUSE;
- memcpy(mouse_report + 1, data, 6);
- logi_dj_recv_forward_input_report(hdev, mouse_report, 7);
+ memcpy(mouse_report + 1, data, size);
+ logi_dj_recv_forward_input_report(hdev, mouse_report,
+ size + 1);
}
return false;
@@ -1652,6 +1663,7 @@ static int logi_dj_probe(struct hid_device *hdev,
case recvr_type_dj: no_dj_interfaces = 3; break;
case recvr_type_hidpp: no_dj_interfaces = 2; break;
case recvr_type_gaming_hidpp: no_dj_interfaces = 3; break;
+ case recvr_type_mouse_only: no_dj_interfaces = 2; break;
case recvr_type_27mhz: no_dj_interfaces = 2; break;
case recvr_type_bluetooth: no_dj_interfaces = 2; break;
}
@@ -1825,10 +1837,10 @@ static const struct hid_device_id logi_dj_receivers[] = {
{HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2),
.driver_data = recvr_type_dj},
- { /* Logitech Nano (non DJ) receiver */
+ { /* Logitech Nano mouse only receiver */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER),
- .driver_data = recvr_type_hidpp},
+ .driver_data = recvr_type_mouse_only},
{ /* Logitech Nano (non DJ) receiver */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2),
--
2.19.2
^ permalink raw reply related [flat|nested] 6+ messages in thread