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Date:   Fri, 23 Jul 2021 04:12:07 +0800
From:   kernel test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [arnd-playground:arm-kill-set_fs-10 4/9]
 arch/arm/kernel/ptrace.c:815:29: error: 'struct thread_info' has no member
 named 'syscall'; did you mean 'abi_syscall'?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git arm-kill-set_fs-10
head:   a6e0b06b967960c7e0a64bf10b8d1b7afaa4008e
commit: c82f8f787b772d6981925ca52172a8ff3f71096a [4/9] ARM: syscall: always store thread_info->syscall
config: arm-buildonly-randconfig-r004-20210722 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 10.3.0
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/arnd/playground.git/commit/?id=c82f8f787b772d6981925ca52172a8ff3f71096a
        git remote add arnd-playground https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git
        git fetch --no-tags arnd-playground arm-kill-set_fs-10
        git checkout c82f8f787b772d6981925ca52172a8ff3f71096a
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/kernel/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   arch/arm/kernel/ptrace.c: In function 'arch_ptrace':
>> arch/arm/kernel/ptrace.c:815:29: error: 'struct thread_info' has no member named 'syscall'; did you mean 'abi_syscall'?
     815 |    task_thread_info(child)->syscall = data;
         |                             ^~~~~~~
         |                             abi_syscall
   arch/arm/kernel/ptrace.c: In function 'tracehook_report_syscall':
   arch/arm/kernel/ptrace.c:884:26: error: 'struct thread_info' has no member named 'syscall'; did you mean 'abi_syscall'?
     884 |   current_thread_info()->syscall = -1;
         |                          ^~~~~~~
         |                          abi_syscall
   arch/arm/kernel/ptrace.c: At top level:
   arch/arm/kernel/ptrace.c:889:16: warning: no previous prototype for 'syscall_trace_enter' [-Wmissing-prototypes]
     889 | asmlinkage int syscall_trace_enter(struct pt_regs *regs)
         |                ^~~~~~~~~~~~~~~~~~~
   arch/arm/kernel/ptrace.c:917:17: warning: no previous prototype for 'syscall_trace_exit' [-Wmissing-prototypes]
     917 | asmlinkage void syscall_trace_exit(struct pt_regs *regs)
         |                 ^~~~~~~~~~~~~~~~~~


vim +815 arch/arm/kernel/ptrace.c

^1da177e4c3f41 Linus Torvalds  2005-04-16  808  
^1da177e4c3f41 Linus Torvalds  2005-04-16  809  		case PTRACE_GET_THREAD_AREA:
a4780adeefd042 André Hentschel 2013-06-18  810  			ret = put_user(task_thread_info(child)->tp_value[0],
b640a0d192265c Namhyung Kim    2010-10-27  811  				       datap);
^1da177e4c3f41 Linus Torvalds  2005-04-16  812  			break;
^1da177e4c3f41 Linus Torvalds  2005-04-16  813  
3f471126ee53fe Nicolas Pitre   2006-01-14  814  		case PTRACE_SET_SYSCALL:
5ba6d3febd4978 Russell King    2007-05-06 @815  			task_thread_info(child)->syscall = data;
3f471126ee53fe Nicolas Pitre   2006-01-14  816  			ret = 0;
3f471126ee53fe Nicolas Pitre   2006-01-14  817  			break;
3f471126ee53fe Nicolas Pitre   2006-01-14  818  

:::::: The code at line 815 was first introduced by commit
:::::: 5ba6d3febd4978f31b2c523d64d381603923a709 [ARM] Move syscall saving out of the way of utrace

:::::: TO: Russell King <rmk@...-67.arm.linux.org.uk>
:::::: CC: Russell King <rmk+kernel@....linux.org.uk>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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