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SubjectRe: [PATCH v7 1/1] ptrace,syscall_user_dispatch: checkpoint/restore support for SUD
Hi Gregory,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on tip/core/entry v6.2-rc5 next-20230127]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Gregory-Price/ptrace-syscall_user_dispatch-checkpoint-restore-support-for-SUD/20230128-145101
patch link: https://lore.kernel.org/r/20230126190645.18341-2-gregory.price%40memverge.com
patch subject: [PATCH v7 1/1] ptrace,syscall_user_dispatch: checkpoint/restore support for SUD
config: x86_64-randconfig-a013-20230123 (https://download.01.org/0day-ci/archive/20230129/202301290021.499W0wlW-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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://github.com/intel-lab-lkp/linux/commit/bc68df21f98617e74a8c5368a901041f89bdb17f
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Gregory-Price/ptrace-syscall_user_dispatch-checkpoint-restore-support-for-SUD/20230128-145101
git checkout bc68df21f98617e74a8c5368a901041f89bdb17f
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> kernel/entry/syscall_user_dispatch.c:114:38: error: variable has incomplete type 'struct syscall_user_dispatch_config'
struct syscall_user_dispatch_config config;
^
kernel/entry/syscall_user_dispatch.c:114:9: note: forward declaration of 'struct syscall_user_dispatch_config'
struct syscall_user_dispatch_config config;
^
>> kernel/entry/syscall_user_dispatch.c:116:14: error: invalid application of 'sizeof' to an incomplete type 'struct syscall_user_dispatch_config'
if (size != sizeof(struct syscall_user_dispatch_config))
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/entry/syscall_user_dispatch.c:114:9: note: forward declaration of 'struct syscall_user_dispatch_config'
struct syscall_user_dispatch_config config;
^
kernel/entry/syscall_user_dispatch.c:137:38: error: variable has incomplete type 'struct syscall_user_dispatch_config'
struct syscall_user_dispatch_config config;
^
kernel/entry/syscall_user_dispatch.c:137:9: note: forward declaration of 'struct syscall_user_dispatch_config'
struct syscall_user_dispatch_config config;
^
kernel/entry/syscall_user_dispatch.c:139:14: error: invalid application of 'sizeof' to an incomplete type 'struct syscall_user_dispatch_config'
if (size != sizeof(struct syscall_user_dispatch_config))
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/entry/syscall_user_dispatch.c:137:9: note: forward declaration of 'struct syscall_user_dispatch_config'
struct syscall_user_dispatch_config config;
^
4 errors generated.


vim +114 kernel/entry/syscall_user_dispatch.c

109
110 int syscall_user_dispatch_get_config(struct task_struct *task, unsigned long size,
111 void __user *data)
112 {
113 struct syscall_user_dispatch *sd = &task->syscall_dispatch;
> 114 struct syscall_user_dispatch_config config;
115
> 116 if (size != sizeof(struct syscall_user_dispatch_config))
117 return -EINVAL;
118
119 if (test_syscall_work(SYSCALL_USER_DISPATCH))
120 config.mode = PR_SYS_DISPATCH_ON;
121 else
122 config.mode = PR_SYS_DISPATCH_OFF;
123
124 config.offset = sd->offset;
125 config.len = sd->len;
126 config.selector = sd->selector;
127
128 if (copy_to_user(data, &config, sizeof(config)))
129 return -EFAULT;
130
131 return 0;
132 }
133

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

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