2:50 a.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 926de8c4326c14fcf35f1de142019043597a4fac
commit: 6a82582d9fa438045191074856f47165334f2777 HID: ft260: add usb hid to i2c host
bridge driver
date: 6 months ago
config: i386-randconfig-a015-20210911 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project
261cbe98c38f8c1ee1a482fe76511110e790f58a)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 6a82582d9fa438045191074856f47165334f2777
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
clang-14: warning: optimization flag '-falign-jumps=0' is not supported
[-Wignored-optimization-argument]
In file included from drivers/hid/hid-ft260.c:12:
In file included from include/linux/hidraw.h:8:
In file included from include/uapi/linux/hidraw.h:19:
In file included from include/linux/hid.h:19:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:8:
In file included from include/linux/spinlock.h:51:
In file included from include/linux/preempt.h:78:
In file included from arch/x86/include/asm/preempt.h:7:
In file included from include/linux/thread_info.h:58:
arch/x86/include/asm/thread_info.h:172:13: warning: calling
'__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address]
oldframe = __builtin_frame_address(1);
^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/thread_info.h:174:11: warning: calling
'__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address]
frame = __builtin_frame_address(2);
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/hid/hid-ft260.c:515:59: warning: variable 'len' is uninitialized when
used here [-Wuninitialized]
hid_err(hdev, "%s: unsupported wr len: %d\n", __func__,
len);
^~~
include/linux/hid.h:1190:30: note: expanded from macro 'hid_err'
dev_err(&(hid)->dev, fmt, ##__VA_ARGS__)
^~~~~~~~~~~
include/linux/dev_printk.h:112:32: note: expanded from macro 'dev_err'
_dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~
drivers/hid/hid-ft260.c:507:9: note: initialize the variable 'len' to silence
this warning
int len, ret;
^
= 0
> drivers/hid/hid-ft260.c:879:1: warning: taking address of packed
member 'clock' of class or structure 'ft260_get_i2c_status_report' may
result in an unaligned pointer value [-Waddress-of-packed-member]
FT260_I2CST_ATTR_SHOW(clock);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/hid/hid-ft260.c:814:3: note: expanded from macro
'FT260_I2CST_ATTR_SHOW'
FT260_ATTR_SHOW(name, ft260_get_i2c_status_report, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/hid/hid-ft260.c:803:18: note: expanded from macro 'FT260_ATTR_SHOW'
type *field = &rep.name; \
^~~~~~~~
4 warnings generated.
vim +879 drivers/hid/hid-ft260.c
878
879 FT260_I2CST_ATTR_SHOW(clock);
880 FT260_WORD_ATTR_STORE(clock, ft260_set_i2c_speed_report,
881 FT260_SET_I2C_CLOCK_SPEED);
882 static DEVICE_ATTR_RW(clock);
883
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org