2019-10-11 17:47:58

by Mazin Rezk

[permalink] [raw]
Subject: [PATCH v5 1/2] HID: logitech: Add MX Master over Bluetooth

This patch adds support for the MX Master (b01e and b012) and also adds
foundational code for other Bluetooth LE HID++ devices to be added.

Some devices do not support short reports and thus have a quirk
(HIDPP_QUIRK_MISSING_SHORT_REPORTS) that forces short reports to be sent as
long reports. Since all Bluetooth LE HID++ devices seem to act this way,
HIDPP_QUIRK_CLASS_BLUETOOTH_LE aliases this quirk.

Signed-off-by: Mazin Rezk <[email protected]>
---
drivers/hid/hid-logitech-hidpp.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 0179f7ed77e5..3692fb883602 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -71,6 +71,7 @@ MODULE_PARM_DESC(disable_tap_to_click,
#define HIDPP_QUIRK_HIDPP_WHEELS BIT(29)
#define HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS BIT(30)
#define HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS BIT(31)
+#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)

/* These are just aliases for now */
#define HIDPP_QUIRK_KBD_SCROLL_WHEEL HIDPP_QUIRK_HIDPP_WHEELS
@@ -81,6 +82,8 @@ MODULE_PARM_DESC(disable_tap_to_click,
HIDPP_QUIRK_HI_RES_SCROLL_X2120 | \
HIDPP_QUIRK_HI_RES_SCROLL_X2121)

+#define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
+
#define HIDPP_QUIRK_DELAYED_INIT HIDPP_QUIRK_NO_HIDINPUT

#define HIDPP_CAPABILITY_HIDPP10_BATTERY BIT(0)
@@ -340,6 +343,12 @@ static int hidpp_send_rap_command_sync(struct hidpp_device *hidpp_dev,
struct hidpp_report *message;
int ret, max_count;

+ /* Force long reports on devices that do not support short reports */
+ if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
+ report_id == REPORT_ID_HIDPP_SHORT)
+ report_id = REPORT_ID_HIDPP_LONG;
+
+
switch (report_id) {
case REPORT_ID_HIDPP_SHORT:
max_count = HIDPP_REPORT_SHORT_LENGTH - 4;
@@ -3482,6 +3491,12 @@ static bool hidpp_validate_report(struct hid_device *hdev, int id,

static bool hidpp_validate_device(struct hid_device *hdev)
{
+ struct hidpp_device *hidpp = hid_get_drvdata(hdev);
+ /* Skip the short report check if the device does not support it */
+ if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
+ return hidpp_validate_report(hdev, REPORT_ID_HIDPP_LONG,
+ HIDPP_REPORT_LONG_LENGTH, false);
+
return hidpp_validate_report(hdev, REPORT_ID_HIDPP_SHORT,
HIDPP_REPORT_SHORT_LENGTH, false) &&
hidpp_validate_report(hdev, REPORT_ID_HIDPP_LONG,
@@ -3773,6 +3788,13 @@ static const struct hid_device_id hidpp_devices[] = {
{ /* MX5500 keyboard over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb30b),
.driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
+ { /* MX Master mouse over Bluetooth */
+ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb012),
+ .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 |
+ HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb01e),
+ .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 |
+ HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
{}
};

--
2.23.0


2019-10-14 01:30:47

by kernel test robot

[permalink] [raw]
Subject: Re: [PATCH v5 1/2] HID: logitech: Add MX Master over Bluetooth

Hi Mazin,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[cannot apply to v5.4-rc2 next-20191010]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Mazin-Rezk/HID-logitech-Add-MX-Master-over-Bluetooth/20191014-071534
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 7.4.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.4.0 make.cross ARCH=mips

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <[email protected]>

All warnings (new ones prefixed by >>):

In file included from include/linux/ioport.h:15:0,
from include/linux/device.h:15,
from drivers/hid/hid-logitech-hidpp.c:13:
drivers/hid/hid-logitech-hidpp.c: In function 'hidpp_send_rap_command_sync':
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
>> drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
>> drivers/hid/hid-logitech-hidpp.c:347:26: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
^
drivers/hid/hid-logitech-hidpp.c: In function 'hidpp_validate_device':
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
>> drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers/hid/hid-logitech-hidpp.c:3496:22: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
^
drivers/hid/hid-logitech-hidpp.c: At top level:
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
>> drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers/hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
#define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/hid/hid-logitech-hidpp.c:3794:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
>> drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers/hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
#define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/hid/hid-logitech-hidpp.c:3797:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
In file included from include/linux/ioport.h:15:0,
from include/linux/device.h:15,
from drivers//hid/hid-logitech-hidpp.c:13:
drivers//hid/hid-logitech-hidpp.c: In function 'hidpp_send_rap_command_sync':
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:347:26: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
^
drivers//hid/hid-logitech-hidpp.c: In function 'hidpp_validate_device':
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:3496:22: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
^
drivers//hid/hid-logitech-hidpp.c: At top level:
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
#define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers//hid/hid-logitech-hidpp.c:3794:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
#define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers//hid/hid-logitech-hidpp.c:3797:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/BIT +74 drivers/hid/hid-logitech-hidpp.c

12
> 13 #include <linux/device.h>
14 #include <linux/input.h>
15 #include <linux/usb.h>
16 #include <linux/hid.h>
17 #include <linux/module.h>
18 #include <linux/slab.h>
19 #include <linux/sched.h>
20 #include <linux/sched/clock.h>
21 #include <linux/kfifo.h>
22 #include <linux/input/mt.h>
23 #include <linux/workqueue.h>
24 #include <linux/atomic.h>
25 #include <linux/fixp-arith.h>
26 #include <asm/unaligned.h>
27 #include "usbhid/usbhid.h"
28 #include "hid-ids.h"
29
30 MODULE_LICENSE("GPL");
31 MODULE_AUTHOR("Benjamin Tissoires <[email protected]>");
32 MODULE_AUTHOR("Nestor Lopez Casado <[email protected]>");
33
34 static bool disable_raw_mode;
35 module_param(disable_raw_mode, bool, 0644);
36 MODULE_PARM_DESC(disable_raw_mode,
37 "Disable Raw mode reporting for touchpads and keep firmware gestures.");
38
39 static bool disable_tap_to_click;
40 module_param(disable_tap_to_click, bool, 0644);
41 MODULE_PARM_DESC(disable_tap_to_click,
42 "Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently).");
43
44 #define REPORT_ID_HIDPP_SHORT 0x10
45 #define REPORT_ID_HIDPP_LONG 0x11
46 #define REPORT_ID_HIDPP_VERY_LONG 0x12
47
48 #define HIDPP_REPORT_SHORT_LENGTH 7
49 #define HIDPP_REPORT_LONG_LENGTH 20
50 #define HIDPP_REPORT_VERY_LONG_MAX_LENGTH 64
51
52 #define HIDPP_SUB_ID_CONSUMER_VENDOR_KEYS 0x03
53 #define HIDPP_SUB_ID_ROLLER 0x05
54 #define HIDPP_SUB_ID_MOUSE_EXTRA_BTNS 0x06
55
56 #define HIDPP_QUIRK_CLASS_WTP BIT(0)
57 #define HIDPP_QUIRK_CLASS_M560 BIT(1)
58 #define HIDPP_QUIRK_CLASS_K400 BIT(2)
59 #define HIDPP_QUIRK_CLASS_G920 BIT(3)
60 #define HIDPP_QUIRK_CLASS_K750 BIT(4)
61
62 /* bits 2..20 are reserved for classes */
63 /* #define HIDPP_QUIRK_CONNECT_EVENTS BIT(21) disabled */
64 #define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
65 #define HIDPP_QUIRK_NO_HIDINPUT BIT(23)
66 #define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24)
67 #define HIDPP_QUIRK_UNIFYING BIT(25)
68 #define HIDPP_QUIRK_HI_RES_SCROLL_1P0 BIT(26)
69 #define HIDPP_QUIRK_HI_RES_SCROLL_X2120 BIT(27)
70 #define HIDPP_QUIRK_HI_RES_SCROLL_X2121 BIT(28)
71 #define HIDPP_QUIRK_HIDPP_WHEELS BIT(29)
72 #define HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS BIT(30)
73 #define HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS BIT(31)
> 74 #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
75

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation


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2019-10-14 04:37:16

by Mazin Rezk

[permalink] [raw]
Subject: Re: [PATCH v5 1/2] HID: logitech: Add MX Master over Bluetooth

On Sunday, October 13, 2019 9:28 PM, kbuild test robot <[email protected]> wrote:

> Hi Mazin,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on linus/master]
> [cannot apply to v5.4-rc2 next-20191010]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
>
> url: https://github.com/0day-ci/linux/commits/Mazin-Rezk/HID-logitech-Add-MX-Master-over-Bluetooth/20191014-071534
> config: mips-allmodconfig (attached as .config)
> compiler: mips-linux-gcc (GCC) 7.4.0
> reproduce:
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # save the attached .config to linux build tree
> GCC_VERSION=7.4.0 make.cross ARCH=mips
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot [email protected]
>
> All warnings (new ones prefixed by >>):
>
> In file included from include/linux/ioport.h:15:0,
> from include/linux/device.h:15,
> from drivers/hid/hid-logitech-hidpp.c:13:
> drivers/hid/hid-logitech-hidpp.c: In function 'hidpp_send_rap_command_sync':
>
> > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
>
> #define BIT(nr) (UL(1) << (nr))
> ^
>
>
> > > drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
>
> #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> ^~~
>
>
> > > drivers/hid/hid-logitech-hidpp.c:347:26: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
>
> if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
>
> ^
>
>
> drivers/hid/hid-logitech-hidpp.c: In function 'hidpp_validate_device':
>
> > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
>
> #define BIT(nr) (UL(1) << (nr))
> ^
>
>
> > > drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
>
> #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> ^~~
>
>
> drivers/hid/hid-logitech-hidpp.c:3496:22: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
>
> ^
>
>
> drivers/hid/hid-logitech-hidpp.c: At top level:
>
> > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
>
> #define BIT(nr) (UL(1) << (nr))
> ^
>
>
> > > drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
>
> #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> ^~~
>
>
> drivers/hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> #define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> > > drivers/hid/hid-logitech-hidpp.c:3794:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
>
> HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
> > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
>
> #define BIT(nr) (UL(1) << (nr))
> ^
>
>
> > > drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
>
> #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> ^~~
>
>
> drivers/hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> #define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/hid/hid-logitech-hidpp.c:3797:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
> HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> In file included from include/linux/ioport.h:15:0,
> from include/linux/device.h:15,
> from drivers//hid/hid-logitech-hidpp.c:13:
> drivers//hid/hid-logitech-hidpp.c: In function 'hidpp_send_rap_command_sync':
>
> > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
>
> #define BIT(nr) (UL(1) << (nr))
> ^
>
>
> drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> ^~~
> drivers//hid/hid-logitech-hidpp.c:347:26: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
>
> ^
>
>
> drivers//hid/hid-logitech-hidpp.c: In function 'hidpp_validate_device':
>
> > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
>
> #define BIT(nr) (UL(1) << (nr))
> ^
>
>
> drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> ^~~
> drivers//hid/hid-logitech-hidpp.c:3496:22: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
>
> ^
>
>
> drivers//hid/hid-logitech-hidpp.c: At top level:
>
> > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
>
> #define BIT(nr) (UL(1) << (nr))
> ^
>
>
> drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> ^~~
> drivers//hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> #define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers//hid/hid-logitech-hidpp.c:3794:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
> HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
>
> #define BIT(nr) (UL(1) << (nr))
> ^
>
>
> drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> ^~~
> drivers//hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> #define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers//hid/hid-logitech-hidpp.c:3797:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
> HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> vim +/BIT +74 drivers/hid/hid-logitech-hidpp.c
>
> 12
>
> > 13 #include <linux/device.h>
>
> 14 #include <linux/input.h>
>
> 15 #include <linux/usb.h>
>
> 16 #include <linux/hid.h>
>
> 17 #include <linux/module.h>
>
> 18 #include <linux/slab.h>
>
> 19 #include <linux/sched.h>
>
> 20 #include <linux/sched/clock.h>
>
> 21 #include <linux/kfifo.h>
>
> 22 #include <linux/input/mt.h>
>
> 23 #include <linux/workqueue.h>
>
> 24 #include <linux/atomic.h>
>
> 25 #include <linux/fixp-arith.h>
>
> 26 #include <asm/unaligned.h>
>
> 27 #include "usbhid/usbhid.h"
> 28 #include "hid-ids.h"
> 29
> 30 MODULE_LICENSE("GPL");
> 31 MODULE_AUTHOR("Benjamin Tissoires <[email protected]>");
>
> 32 MODULE_AUTHOR("Nestor Lopez Casado <[email protected]>");
>
> 33
> 34 static bool disable_raw_mode;
> 35 module_param(disable_raw_mode, bool, 0644);
> 36 MODULE_PARM_DESC(disable_raw_mode,
> 37 "Disable Raw mode reporting for touchpads and keep firmware gestures.");
> 38
> 39 static bool disable_tap_to_click;
> 40 module_param(disable_tap_to_click, bool, 0644);
> 41 MODULE_PARM_DESC(disable_tap_to_click,
> 42 "Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently).");
> 43
> 44 #define REPORT_ID_HIDPP_SHORT 0x10
> 45 #define REPORT_ID_HIDPP_LONG 0x11
> 46 #define REPORT_ID_HIDPP_VERY_LONG 0x12
> 47
> 48 #define HIDPP_REPORT_SHORT_LENGTH 7
> 49 #define HIDPP_REPORT_LONG_LENGTH 20
> 50 #define HIDPP_REPORT_VERY_LONG_MAX_LENGTH 64
> 51
> 52 #define HIDPP_SUB_ID_CONSUMER_VENDOR_KEYS 0x03
> 53 #define HIDPP_SUB_ID_ROLLER 0x05
> 54 #define HIDPP_SUB_ID_MOUSE_EXTRA_BTNS 0x06
> 55
> 56 #define HIDPP_QUIRK_CLASS_WTP BIT(0)
> 57 #define HIDPP_QUIRK_CLASS_M560 BIT(1)
> 58 #define HIDPP_QUIRK_CLASS_K400 BIT(2)
> 59 #define HIDPP_QUIRK_CLASS_G920 BIT(3)
> 60 #define HIDPP_QUIRK_CLASS_K750 BIT(4)
> 61
> 62 /* bits 2..20 are reserved for classes */
> 63 /* #define HIDPP_QUIRK_CONNECT_EVENTS BIT(21) disabled */
> 64 #define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
> 65 #define HIDPP_QUIRK_NO_HIDINPUT BIT(23)
> 66 #define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24)
> 67 #define HIDPP_QUIRK_UNIFYING BIT(25)
> 68 #define HIDPP_QUIRK_HI_RES_SCROLL_1P0 BIT(26)
> 69 #define HIDPP_QUIRK_HI_RES_SCROLL_X2120 BIT(27)
> 70 #define HIDPP_QUIRK_HI_RES_SCROLL_X2121 BIT(28)
> 71 #define HIDPP_QUIRK_HIDPP_WHEELS BIT(29)
> 72 #define HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS BIT(30)
> 73 #define HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS BIT(31)
>
>
> > 74 #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
>
> 75
>
>
> --
>
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation


It seems that I overlooked that quirks is an unsigned long and is 32-bit
on some architectures. I feel like it's possible to change driver_data
and quirks to unsigned long long but it seems like such an unnecessarily
large change.

Since we've already reached the 32-bit limit for quirks, is it possible
that we could change how many bits are reserved for classes?

Also, could bit 21 be reused for HIDPP_QUIRK_MISSING_SHORT_REPORTS?

2019-10-14 04:38:30

by kernel test robot

[permalink] [raw]
Subject: Re: [PATCH v5 1/2] HID: logitech: Add MX Master over Bluetooth

Hi Mazin,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[cannot apply to v5.4-rc3 next-20191011]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Mazin-Rezk/HID-logitech-Add-MX-Master-over-Bluetooth/20191014-071534
config: i386-randconfig-g004-201941 (attached as .config)
compiler: gcc-7 (Debian 7.4.0-13) 7.4.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <[email protected]>

All warnings (new ones prefixed by >>):

In file included from include/linux/ioport.h:13:0,
from include/linux/device.h:15,
from drivers//hid/hid-logitech-hidpp.c:13:
drivers//hid/hid-logitech-hidpp.c: In function 'hidpp_send_rap_command_sync':
include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
>> drivers//hid/hid-logitech-hidpp.c:347:2: note: in expansion of macro 'if'
if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
^~
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:347:26: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
^
include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
include/linux/compiler.h:58:61: note: in definition of macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
>> drivers//hid/hid-logitech-hidpp.c:347:2: note: in expansion of macro 'if'
if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
^~
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:347:26: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
^
drivers//hid/hid-logitech-hidpp.c: In function 'hidpp_validate_device':
include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers//hid/hid-logitech-hidpp.c:3496:2: note: in expansion of macro 'if'
if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
^~
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:3496:22: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
^
include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
include/linux/compiler.h:58:61: note: in definition of macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers//hid/hid-logitech-hidpp.c:3496:2: note: in expansion of macro 'if'
if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
^~
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:3496:22: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
^
In file included from include/linux/ioport.h:15:0,
from include/linux/device.h:15,
from drivers//hid/hid-logitech-hidpp.c:13:
drivers//hid/hid-logitech-hidpp.c: At top level:
include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
#define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers//hid/hid-logitech-hidpp.c:3794:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
#define BIT(nr) (UL(1) << (nr))
^
drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
#define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
^~~
drivers//hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
#define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers//hid/hid-logitech-hidpp.c:3797:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Cyclomatic Complexity 5 include/linux/compiler.h:__read_once_size
Cyclomatic Complexity 5 include/linux/compiler.h:__write_once_size
Cyclomatic Complexity 1 include/linux/kasan-checks.h:kasan_check_read
Cyclomatic Complexity 1 include/linux/kasan-checks.h:kasan_check_write
Cyclomatic Complexity 4 arch/x86/include/asm/bitops.h:arch_set_bit
Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:arch___set_bit
Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:arch___clear_bit
Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:fls
Cyclomatic Complexity 1 include/asm-generic/bitops-instrumented.h:set_bit
Cyclomatic Complexity 1 include/asm-generic/bitops-instrumented.h:__set_bit
Cyclomatic Complexity 1 include/asm-generic/bitops-instrumented.h:__clear_bit
Cyclomatic Complexity 1 include/uapi/linux/swab.h:__swab16p
Cyclomatic Complexity 1 include/uapi/linux/byteorder/little_endian.h:__le16_to_cpup
Cyclomatic Complexity 1 include/uapi/linux/byteorder/little_endian.h:__be16_to_cpup
Cyclomatic Complexity 1 include/linux/log2.h:__ilog2_u32
Cyclomatic Complexity 1 include/linux/list.h:INIT_LIST_HEAD
Cyclomatic Complexity 1 include/linux/err.h:PTR_ERR
Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:arch_atomic_read
Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:arch_atomic_set
Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:arch_atomic_inc
Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:arch_atomic_dec
Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:arch_atomic_add_return
Cyclomatic Complexity 1 include/asm-generic/atomic-instrumented.h:atomic_read
Cyclomatic Complexity 1 include/asm-generic/atomic-instrumented.h:atomic_set
Cyclomatic Complexity 1 include/asm-generic/atomic-instrumented.h:atomic_add_return
Cyclomatic Complexity 1 include/asm-generic/atomic-instrumented.h:atomic_inc
Cyclomatic Complexity 1 include/asm-generic/atomic-instrumented.h:atomic_dec
Cyclomatic Complexity 1 include/linux/atomic-fallback.h:atomic_inc_return
Cyclomatic Complexity 1 include/linux/workqueue.h:__init_work
Cyclomatic Complexity 1 include/linux/device.h:dev_get_drvdata
Cyclomatic Complexity 1 include/linux/device.h:dev_set_drvdata
Cyclomatic Complexity 1 include/linux/input.h:input_get_drvdata
Cyclomatic Complexity 1 include/linux/input.h:input_set_drvdata

vim +/if +347 drivers//hid/hid-logitech-hidpp.c

338
339 static int hidpp_send_rap_command_sync(struct hidpp_device *hidpp_dev,
340 u8 report_id, u8 sub_id, u8 reg_address, u8 *params, int param_count,
341 struct hidpp_report *response)
342 {
343 struct hidpp_report *message;
344 int ret, max_count;
345
346 /* Force long reports on devices that do not support short reports */
> 347 if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
348 report_id == REPORT_ID_HIDPP_SHORT)
349 report_id = REPORT_ID_HIDPP_LONG;
350
351
352 switch (report_id) {
353 case REPORT_ID_HIDPP_SHORT:
354 max_count = HIDPP_REPORT_SHORT_LENGTH - 4;
355 break;
356 case REPORT_ID_HIDPP_LONG:
357 max_count = HIDPP_REPORT_LONG_LENGTH - 4;
358 break;
359 case REPORT_ID_HIDPP_VERY_LONG:
360 max_count = hidpp_dev->very_long_report_length - 4;
361 break;
362 default:
363 return -EINVAL;
364 }
365
366 if (param_count > max_count)
367 return -EINVAL;
368
369 message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
370 if (!message)
371 return -ENOMEM;
372 message->report_id = report_id;
373 message->rap.sub_id = sub_id;
374 message->rap.reg_address = reg_address;
375 memcpy(&message->rap.params, params, param_count);
376
377 ret = hidpp_send_message_sync(hidpp_dev, message, response);
378 kfree(message);
379 return ret;
380 }
381

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation


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2019-10-14 07:08:50

by Benjamin Tissoires

[permalink] [raw]
Subject: Re: [PATCH v5 1/2] HID: logitech: Add MX Master over Bluetooth

Hey,

On Mon, Oct 14, 2019 at 6:35 AM Mazin Rezk <[email protected]> wrote:
>
> On Sunday, October 13, 2019 9:28 PM, kbuild test robot <[email protected]> wrote:
>
> > Hi Mazin,
> >
> > Thank you for the patch! Perhaps something to improve:
> >
> > [auto build test WARNING on linus/master]
> > [cannot apply to v5.4-rc2 next-20191010]
> > [if your patch is applied to the wrong git tree, please drop us a note to help
> > improve the system. BTW, we also suggest to use '--base' option to specify the
> > base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
> >
> > url: https://github.com/0day-ci/linux/commits/Mazin-Rezk/HID-logitech-Add-MX-Master-over-Bluetooth/20191014-071534
> > config: mips-allmodconfig (attached as .config)
> > compiler: mips-linux-gcc (GCC) 7.4.0
> > reproduce:
> > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> > chmod +x ~/bin/make.cross
> > # save the attached .config to linux build tree
> > GCC_VERSION=7.4.0 make.cross ARCH=mips
> >
> > If you fix the issue, kindly add following tag
> > Reported-by: kbuild test robot [email protected]
> >
> > All warnings (new ones prefixed by >>):
> >
> > In file included from include/linux/ioport.h:15:0,
> > from include/linux/device.h:15,
> > from drivers/hid/hid-logitech-hidpp.c:13:
> > drivers/hid/hid-logitech-hidpp.c: In function 'hidpp_send_rap_command_sync':
> >
> > > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
> >
> > #define BIT(nr) (UL(1) << (nr))
> > ^
> >
> >
> > > > drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> >
> > #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> > ^~~
> >
> >
> > > > drivers/hid/hid-logitech-hidpp.c:347:26: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> >
> > if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
> >
> > ^
> >
> >
> > drivers/hid/hid-logitech-hidpp.c: In function 'hidpp_validate_device':
> >
> > > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
> >
> > #define BIT(nr) (UL(1) << (nr))
> > ^
> >
> >
> > > > drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> >
> > #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> > ^~~
> >
> >
> > drivers/hid/hid-logitech-hidpp.c:3496:22: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> > if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
> >
> > ^
> >
> >
> > drivers/hid/hid-logitech-hidpp.c: At top level:
> >
> > > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
> >
> > #define BIT(nr) (UL(1) << (nr))
> > ^
> >
> >
> > > > drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> >
> > #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> > ^~~
> >
> >
> > drivers/hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> > #define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
> > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
> > > > drivers/hid/hid-logitech-hidpp.c:3794:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
> >
> > HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
> > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
> >
> > > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
> >
> > #define BIT(nr) (UL(1) << (nr))
> > ^
> >
> >
> > > > drivers/hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> >
> > #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> > ^~~
> >
> >
> > drivers/hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> > #define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
> > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > drivers/hid/hid-logitech-hidpp.c:3797:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
> > HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
> > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
> > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> >
> > In file included from include/linux/ioport.h:15:0,
> > from include/linux/device.h:15,
> > from drivers//hid/hid-logitech-hidpp.c:13:
> > drivers//hid/hid-logitech-hidpp.c: In function 'hidpp_send_rap_command_sync':
> >
> > > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
> >
> > #define BIT(nr) (UL(1) << (nr))
> > ^
> >
> >
> > drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> > #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> > ^~~
> > drivers//hid/hid-logitech-hidpp.c:347:26: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> > if (hidpp_dev->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS &&
> >
> > ^
> >
> >
> > drivers//hid/hid-logitech-hidpp.c: In function 'hidpp_validate_device':
> >
> > > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
> >
> > #define BIT(nr) (UL(1) << (nr))
> > ^
> >
> >
> > drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> > #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> > ^~~
> > drivers//hid/hid-logitech-hidpp.c:3496:22: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> > if (hidpp->quirks & HIDPP_QUIRK_MISSING_SHORT_REPORTS)
> >
> > ^
> >
> >
> > drivers//hid/hid-logitech-hidpp.c: At top level:
> >
> > > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
> >
> > #define BIT(nr) (UL(1) << (nr))
> > ^
> >
> >
> > drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> > #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> > ^~~
> > drivers//hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> > #define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
> > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > drivers//hid/hid-logitech-hidpp.c:3794:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
> > HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
> > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
> > > > include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
> >
> > #define BIT(nr) (UL(1) << (nr))
> > ^
> >
> >
> > drivers//hid/hid-logitech-hidpp.c:74:43: note: in expansion of macro 'BIT'
> > #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> > ^~~
> > drivers//hid/hid-logitech-hidpp.c:85:40: note: in expansion of macro 'HIDPP_QUIRK_MISSING_SHORT_REPORTS'
> > #define HIDPP_QUIRK_CLASS_BLUETOOTH_LE HIDPP_QUIRK_MISSING_SHORT_REPORTS
> > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > drivers//hid/hid-logitech-hidpp.c:3797:5: note: in expansion of macro 'HIDPP_QUIRK_CLASS_BLUETOOTH_LE'
> > HIDPP_QUIRK_CLASS_BLUETOOTH_LE },
> > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
> > vim +/BIT +74 drivers/hid/hid-logitech-hidpp.c
> >
> > 12
> >
> > > 13 #include <linux/device.h>
> >
> > 14 #include <linux/input.h>
> >
> > 15 #include <linux/usb.h>
> >
> > 16 #include <linux/hid.h>
> >
> > 17 #include <linux/module.h>
> >
> > 18 #include <linux/slab.h>
> >
> > 19 #include <linux/sched.h>
> >
> > 20 #include <linux/sched/clock.h>
> >
> > 21 #include <linux/kfifo.h>
> >
> > 22 #include <linux/input/mt.h>
> >
> > 23 #include <linux/workqueue.h>
> >
> > 24 #include <linux/atomic.h>
> >
> > 25 #include <linux/fixp-arith.h>
> >
> > 26 #include <asm/unaligned.h>
> >
> > 27 #include "usbhid/usbhid.h"
> > 28 #include "hid-ids.h"
> > 29
> > 30 MODULE_LICENSE("GPL");
> > 31 MODULE_AUTHOR("Benjamin Tissoires <[email protected]>");
> >
> > 32 MODULE_AUTHOR("Nestor Lopez Casado <[email protected]>");
> >
> > 33
> > 34 static bool disable_raw_mode;
> > 35 module_param(disable_raw_mode, bool, 0644);
> > 36 MODULE_PARM_DESC(disable_raw_mode,
> > 37 "Disable Raw mode reporting for touchpads and keep firmware gestures.");
> > 38
> > 39 static bool disable_tap_to_click;
> > 40 module_param(disable_tap_to_click, bool, 0644);
> > 41 MODULE_PARM_DESC(disable_tap_to_click,
> > 42 "Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently).");
> > 43
> > 44 #define REPORT_ID_HIDPP_SHORT 0x10
> > 45 #define REPORT_ID_HIDPP_LONG 0x11
> > 46 #define REPORT_ID_HIDPP_VERY_LONG 0x12
> > 47
> > 48 #define HIDPP_REPORT_SHORT_LENGTH 7
> > 49 #define HIDPP_REPORT_LONG_LENGTH 20
> > 50 #define HIDPP_REPORT_VERY_LONG_MAX_LENGTH 64
> > 51
> > 52 #define HIDPP_SUB_ID_CONSUMER_VENDOR_KEYS 0x03
> > 53 #define HIDPP_SUB_ID_ROLLER 0x05
> > 54 #define HIDPP_SUB_ID_MOUSE_EXTRA_BTNS 0x06
> > 55
> > 56 #define HIDPP_QUIRK_CLASS_WTP BIT(0)
> > 57 #define HIDPP_QUIRK_CLASS_M560 BIT(1)
> > 58 #define HIDPP_QUIRK_CLASS_K400 BIT(2)
> > 59 #define HIDPP_QUIRK_CLASS_G920 BIT(3)
> > 60 #define HIDPP_QUIRK_CLASS_K750 BIT(4)
> > 61
> > 62 /* bits 2..20 are reserved for classes */
> > 63 /* #define HIDPP_QUIRK_CONNECT_EVENTS BIT(21) disabled */
> > 64 #define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
> > 65 #define HIDPP_QUIRK_NO_HIDINPUT BIT(23)
> > 66 #define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24)
> > 67 #define HIDPP_QUIRK_UNIFYING BIT(25)
> > 68 #define HIDPP_QUIRK_HI_RES_SCROLL_1P0 BIT(26)
> > 69 #define HIDPP_QUIRK_HI_RES_SCROLL_X2120 BIT(27)
> > 70 #define HIDPP_QUIRK_HI_RES_SCROLL_X2121 BIT(28)
> > 71 #define HIDPP_QUIRK_HIDPP_WHEELS BIT(29)
> > 72 #define HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS BIT(30)
> > 73 #define HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS BIT(31)
> >
> >
> > > 74 #define HIDPP_QUIRK_MISSING_SHORT_REPORTS BIT(32)
> >
> > 75
> >
> >
> > --
> >
> > 0-DAY kernel test infrastructure Open Source Technology Center
> > https://lists.01.org/pipermail/kbuild-all Intel Corporation
>
>
> It seems that I overlooked that quirks is an unsigned long and is 32-bit
> on some architectures. I feel like it's possible to change driver_data
> and quirks to unsigned long long but it seems like such an unnecessarily
> large change.

Yep, which is why I told you to use 0x20 and 0x1f :)

>
> Since we've already reached the 32-bit limit for quirks, is it possible
> that we could change how many bits are reserved for classes?

yes, we can simply change the reserved range, this is just a comment after all.

>
> Also, could bit 21 be reused for HIDPP_QUIRK_MISSING_SHORT_REPORTS?

unfortunately no. This is theoretically kernel API, as you can have a
script that binds a driver and sets a custom quirk for it (by writing
to the sysfs new_id). So if one is marked as "reserved", resuing it
might break someone's device though really unlikely.

I'd rather shrink the number of classes than reusing one quirk already used.

Cheers,
Benjamin