| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <CAO-hwJLea5rAZ20Mdn8tSD1a8FfbS9RDcu2nWwLgxTtxKKsWyg@mail.gmail.com>
Date: Mon, 14 Oct 2019 09:07:50 +0200
From: Benjamin Tissoires <benjamin.tissoires@...hat.com>
To: Mazin Rezk <mnrzk@...tonmail.com>
Cc: kbuild test robot <lkp@...el.com>,
"kbuild-all@...ts.01.org" <kbuild-all@...ts.01.org>,
"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
"jikos@...nel.org" <jikos@...nel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Filipe Laíns <lains@...hlinux.org>
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 <mnrzk@...tonmail.com> wrote:
>
> On Sunday, October 13, 2019 9:28 PM, kbuild test robot <lkp@...el.com> 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 lkp@...el.com
> >
> > 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 <benjamin.tissoires@...il.com>");
> >
> > 32 MODULE_AUTHOR("Nestor Lopez Casado <nlopezcasad@...itech.com>");
> >
> > 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
Powered by blists - more mailing lists