10:55 p.m.
Hi Manisha,
First bad commit (maybe != root cause):
tree: https://github.com/mchinth/linux sep_socwatch_linux_5_10
head: c55df4a2b60fc7c6c4d00fd9f9fb447087833513
commit: 50ccb9f3611a1cff43d9df2e2b303f817ad00a4d [1/2] platform/x86: Update SEP driver for
5.10 pull
config: x86_64-rhel-8.3-kselftests
(https://download.01.org/0day-ci/archive/20220208/202202081901.wpMee2f6-lk...)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-dirty
#
https://github.com/mchinth/linux/commit/50ccb9f3611a1cff43d9df2e2b303f817...
git remote add mchinth https://github.com/mchinth/linux
git fetch --no-tags mchinth sep_socwatch_linux_5_10
git checkout 50ccb9f3611a1cff43d9df2e2b303f817ad00a4d
# save the config file to linux build tree
mkdir build_dir
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir
ARCH=x86_64 SHELL=/bin/bash drivers/platform/x86/sepdk/pax/
drivers/platform/x86/sepdk/sep/ drivers/platform/x86/socperf/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
> drivers/platform/x86/sepdk/pax/pax.c:763:18: sparse: sparse: cast
removes address space '__user' of expression
drivers/platform/x86/sepdk/pax/pax.c:765:18: sparse: sparse: cast removes address space
'__user' of expression
vim +/__user +763 drivers/platform/x86/sepdk/pax/pax.c
d605aabab41663 Jon Moeller 2018-11-13 741
d605aabab41663 Jon Moeller 2018-11-13 742 #if defined(CONFIG_COMPAT) &&
defined(DRV_EM64T)
d605aabab41663 Jon Moeller 2018-11-13 743 static IOCTL_OP_TYPE
pax_Device_Control_Compat(struct file *filp,
d605aabab41663 Jon Moeller 2018-11-13 744 unsigned int cmd,
d605aabab41663 Jon Moeller 2018-11-13 745 unsigned long arg)
d605aabab41663 Jon Moeller 2018-11-13 746 {
d605aabab41663 Jon Moeller 2018-11-13 747 int status = OS_SUCCESS;
d605aabab41663 Jon Moeller 2018-11-13 748 IOCTL_COMPAT_ARGS_NODE local_args_compat;
d605aabab41663 Jon Moeller 2018-11-13 749 IOCTL_ARGS_NODE local_args;
d605aabab41663 Jon Moeller 2018-11-13 750
d605aabab41663 Jon Moeller 2018-11-13 751 memset(&local_args_compat, 0,
sizeof(IOCTL_COMPAT_ARGS_NODE));
d605aabab41663 Jon Moeller 2018-11-13 752 if (arg) {
d605aabab41663 Jon Moeller 2018-11-13 753 status =
copy_from_user(&local_args_compat,
d605aabab41663 Jon Moeller 2018-11-13 754 (void __user *)arg,
d605aabab41663 Jon Moeller 2018-11-13 755 sizeof(IOCTL_COMPAT_ARGS_NODE));
d605aabab41663 Jon Moeller 2018-11-13 756 if (status != OS_SUCCESS)
d605aabab41663 Jon Moeller 2018-11-13 757 return status;
d605aabab41663 Jon Moeller 2018-11-13 758 }
d605aabab41663 Jon Moeller 2018-11-13 759
d605aabab41663 Jon Moeller 2018-11-13 760 local_args.len_drv_to_usr =
local_args_compat.len_drv_to_usr;
d605aabab41663 Jon Moeller 2018-11-13 761 local_args.len_usr_to_drv =
local_args_compat.len_usr_to_drv;
d605aabab41663 Jon Moeller 2018-11-13 762 local_args.buf_drv_to_usr =
d605aabab41663 Jon Moeller 2018-11-13 @763 (char
*)compat_ptr(local_args_compat.buf_drv_to_usr);
d605aabab41663 Jon Moeller 2018-11-13 764 local_args.buf_usr_to_drv =
d605aabab41663 Jon Moeller 2018-11-13 765 (char
*)compat_ptr(local_args_compat.buf_usr_to_drv);
d605aabab41663 Jon Moeller 2018-11-13 766
d605aabab41663 Jon Moeller 2018-11-13 767 local_args.command = cmd;
d605aabab41663 Jon Moeller 2018-11-13 768
d605aabab41663 Jon Moeller 2018-11-13 769 status = pax_Service_IOCTL(filp, cmd,
local_args);
d605aabab41663 Jon Moeller 2018-11-13 770
d605aabab41663 Jon Moeller 2018-11-13 771 return status;
d605aabab41663 Jon Moeller 2018-11-13 772 }
d605aabab41663 Jon Moeller 2018-11-13 773 #endif
d605aabab41663 Jon Moeller 2018-11-13 774
:::::: The code at line 763 was first introduced by commit
:::::: d605aabab41663c9be9e8c549042933189adbf2f platform/x86: add sep and socwatch drivers
without socperf.
:::::: TO: Jon Moeller <jon.moeller(a)intel.com>
:::::: CC: Faycal Benmlih <faycal.benmlih(a)intel.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org