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From: kernel test robot <lkp@intel.com>
To: Alexander Potapenko <glider@google.com>
Cc: kbuild-all@lists.01.org, Alexander Viro <viro@zeniv.linux.org.uk>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linux Memory Management List <linux-mm@kvack.org>,
	Andrey Konovalov <andreyknvl@google.com>,
	Andy Lutomirski <luto@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Borislav Petkov <bp@alien8.de>, Christoph Hellwig <hch@lst.de>,
	Christoph Lameter <cl@linux-foundation.org>,
	David Rientjes <rientjes@google.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Eric Dumazet <edumazet@google.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Ilya Leoshkevich <iii@linux.ibm.com>,
	Ingo Molnar <mingo@redhat.com>, Jens Axboe <axboe@kernel.dk>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Kees Cook <keescook@chromium.org>, Marco Elver <elver@google.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Matthew Wilcox <willy@infradead.org>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Pekka Enberg <penberg@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Petr Mladek <pmladek@suse.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Vasily Gorbik <gor@linux.ibm.com>
Subject: Re: [PATCH v3 05/46] x86: asm: instrument usercopy in get_user() and __put_user_size()
Date: Wed, 27 Apr 2022 11:45:37 +0800	[thread overview]
Message-ID: <202204271153.LHpYYyCa-lkp@intel.com> (raw)
In-Reply-To: <20220426164315.625149-6-glider@google.com>

Hi Alexander,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/x86/core]
[also build test WARNING on tip/x86/mm linus/master v5.18-rc4 next-20220426]
[cannot apply to hnaz-mm/master]
[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]

url:    https://github.com/intel-lab-lkp/linux/commits/Alexander-Potapenko/Add-KernelMemorySanitizer-infrastructure/20220427-004851
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 203d8919a9eda5d1bc68ac3cd7637588334c9dc1
config: i386-randconfig-s002-20220425 (https://download.01.org/0day-ci/archive/20220427/202204271153.LHpYYyCa-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/intel-lab-lkp/linux/commit/d216de19c8dd97fb6b0eac84fce4362489a61b2e
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Alexander-Potapenko/Add-KernelMemorySanitizer-infrastructure/20220427-004851
        git checkout d216de19c8dd97fb6b0eac84fce4362489a61b2e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/ kernel/ mm/

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


sparse warnings: (new ones prefixed by >>)
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned long long [usertype] * @@
   arch/x86/kernel/signal.c:360:9: sparse:     expected void const volatile [noderef] __user *ptr
   arch/x86/kernel/signal.c:360:9: sparse:     got unsigned long long [usertype] *
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
>> arch/x86/kernel/signal.c:360:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void [noderef] __user *to @@     got unsigned long long [usertype] * @@
   arch/x86/kernel/signal.c:360:9: sparse:     expected void [noderef] __user *to
   arch/x86/kernel/signal.c:360:9: sparse:     got unsigned long long [usertype] *
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:360:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned long long [usertype] * @@
   arch/x86/kernel/signal.c:420:9: sparse:     expected void const volatile [noderef] __user *ptr
   arch/x86/kernel/signal.c:420:9: sparse:     got unsigned long long [usertype] *
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void [noderef] __user *to @@     got unsigned long long [usertype] * @@
   arch/x86/kernel/signal.c:420:9: sparse:     expected void [noderef] __user *to
   arch/x86/kernel/signal.c:420:9: sparse:     got unsigned long long [usertype] *
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:420:9: sparse: sparse: cast removes address space '__user' of expression
   arch/x86/kernel/signal.c:953:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct lockdep_map const *lock @@     got struct lockdep_map [noderef] __rcu * @@
   arch/x86/kernel/signal.c:953:9: sparse:     expected struct lockdep_map const *lock
   arch/x86/kernel/signal.c:953:9: sparse:     got struct lockdep_map [noderef] __rcu *
--
   kernel/signal.c: note: in included file (through arch/x86/include/uapi/asm/signal.h, arch/x86/include/asm/signal.h, include/uapi/linux/signal.h, ...):
   include/uapi/asm-generic/signal-defs.h:83:29: sparse: sparse: multiple address spaces given
   kernel/signal.c:195:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:195:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:195:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:198:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:198:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:198:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:480:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:480:9: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:480:9: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:484:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:484:34: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:484:34: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:517:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:517:9: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:517:9: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:520:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:520:36: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:520:36: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:542:53: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct k_sigaction *ka @@     got struct k_sigaction [noderef] __rcu * @@
   kernel/signal.c:542:53: sparse:     expected struct k_sigaction *ka
   kernel/signal.c:542:53: sparse:     got struct k_sigaction [noderef] __rcu *
   include/uapi/asm-generic/signal-defs.h:83:29: sparse: sparse: multiple address spaces given
   kernel/signal.c:698:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:698:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:698:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:700:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:700:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:700:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:1263:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned char * @@
   kernel/signal.c:1263:29: sparse:     expected void const volatile [noderef] __user *ptr
   kernel/signal.c:1263:29: sparse:     got unsigned char *
>> kernel/signal.c:1263:29: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const [noderef] __user *from @@     got unsigned char * @@
   kernel/signal.c:1263:29: sparse:     expected void const [noderef] __user *from
   kernel/signal.c:1263:29: sparse:     got unsigned char *
>> kernel/signal.c:1263:29: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const [noderef] __user *from @@     got unsigned char * @@
   kernel/signal.c:1263:29: sparse:     expected void const [noderef] __user *from
   kernel/signal.c:1263:29: sparse:     got unsigned char *
   kernel/signal.c:1330:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:1330:9: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:1330:9: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:1331:16: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct k_sigaction *action @@     got struct k_sigaction [noderef] __rcu * @@
   kernel/signal.c:1331:16: sparse:     expected struct k_sigaction *action
   kernel/signal.c:1331:16: sparse:     got struct k_sigaction [noderef] __rcu *
   kernel/signal.c:1351:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:1351:34: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:1351:34: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:1929:36: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:1929:36: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:1929:36: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2039:44: sparse: sparse: cast removes address space '__rcu' of expression
   kernel/signal.c:2058:65: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct task_struct *tsk @@     got struct task_struct [noderef] __rcu *parent @@
   kernel/signal.c:2058:65: sparse:     expected struct task_struct *tsk
   kernel/signal.c:2058:65: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2059:40: sparse: sparse: cast removes address space '__rcu' of expression
   kernel/signal.c:2077:14: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct sighand_struct *psig @@     got struct sighand_struct [noderef] __rcu *[noderef] __rcu sighand @@
   kernel/signal.c:2077:14: sparse:     expected struct sighand_struct *psig
   kernel/signal.c:2077:14: sparse:     got struct sighand_struct [noderef] __rcu *[noderef] __rcu sighand
   kernel/signal.c:2106:46: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected struct task_struct *t @@     got struct task_struct [noderef] __rcu *parent @@
   kernel/signal.c:2106:46: sparse:     expected struct task_struct *t
   kernel/signal.c:2106:46: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2107:34: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected struct task_struct *parent @@     got struct task_struct [noderef] __rcu *parent @@
   kernel/signal.c:2107:34: sparse:     expected struct task_struct *parent
   kernel/signal.c:2107:34: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2136:24: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct task_struct *parent @@     got struct task_struct [noderef] __rcu *parent @@
   kernel/signal.c:2136:24: sparse:     expected struct task_struct *parent
   kernel/signal.c:2136:24: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2139:24: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct task_struct *parent @@     got struct task_struct [noderef] __rcu *real_parent @@
   kernel/signal.c:2139:24: sparse:     expected struct task_struct *parent
   kernel/signal.c:2139:24: sparse:     got struct task_struct [noderef] __rcu *real_parent
   kernel/signal.c:2172:17: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct sighand_struct *sighand @@     got struct sighand_struct [noderef] __rcu *sighand @@
   kernel/signal.c:2172:17: sparse:     expected struct sighand_struct *sighand
   kernel/signal.c:2172:17: sparse:     got struct sighand_struct [noderef] __rcu *sighand
   kernel/signal.c:2213:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2213:41: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2213:41: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2215:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2215:39: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2215:39: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2266:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2266:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2266:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2322:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2322:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2322:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2363:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2363:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2363:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2365:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2365:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2365:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2464:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2464:41: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2464:41: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2548:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2548:41: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2548:41: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2560:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2560:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2560:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2595:52: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct task_struct *tsk @@     got struct task_struct [noderef] __rcu *parent @@
   kernel/signal.c:2595:52: sparse:     expected struct task_struct *tsk
   kernel/signal.c:2595:52: sparse:     got struct task_struct [noderef] __rcu *parent
   kernel/signal.c:2597:49: sparse: sparse: cast removes address space '__rcu' of expression
   kernel/signal.c:2635:49: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct sighand_struct *sighand @@     got struct sighand_struct [noderef] __rcu *sighand @@
   kernel/signal.c:2635:49: sparse:     expected struct sighand_struct *sighand
   kernel/signal.c:2635:49: sparse:     got struct sighand_struct [noderef] __rcu *sighand
   kernel/signal.c:2964:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2964:27: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2964:27: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:2984:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:2984:29: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:2984:29: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3051:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3051:27: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3051:27: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3053:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3053:29: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3053:29: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3204:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3204:31: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3204:31: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3207:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3207:33: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3207:33: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3594:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3594:27: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3594:27: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3606:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3606:37: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3606:37: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3611:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3611:35: sparse:     expected struct spinlock [usertype] *lock
   kernel/signal.c:3611:35: sparse:     got struct spinlock [noderef] __rcu *
   kernel/signal.c:3616:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   kernel/signal.c:3616:29: sparse:     expected struct spinlock [usertype] *lock

vim +360 arch/x86/kernel/signal.c

75779f05264b99 arch/x86/kernel/signal.c    Hiroshi Shimamoto 2009-02-27  325  
7e907f48980d66 arch/x86/kernel/signal_32.c Ingo Molnar       2008-03-06  326  static int
235b80226b986d arch/x86/kernel/signal.c    Al Viro           2012-11-09  327  __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
7e907f48980d66 arch/x86/kernel/signal_32.c Ingo Molnar       2008-03-06  328  	      struct pt_regs *regs)
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  329  {
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  330  	struct sigframe __user *frame;
7e907f48980d66 arch/x86/kernel/signal_32.c Ingo Molnar       2008-03-06  331  	void __user *restorer;
b00d8f8f0b2b39 arch/x86/kernel/signal.c    Al Viro           2020-02-15  332  	void __user *fp = NULL;
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  333  
b00d8f8f0b2b39 arch/x86/kernel/signal.c    Al Viro           2020-02-15  334  	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp);
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  335  
5c1f178094631e arch/x86/kernel/signal.c    Al Viro           2020-02-15  336  	if (!user_access_begin(frame, sizeof(*frame)))
3d0aedd9538e6b arch/x86/kernel/signal_32.c Hiroshi Shimamoto 2008-09-12  337  		return -EFAULT;
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  338  
5c1f178094631e arch/x86/kernel/signal.c    Al Viro           2020-02-15  339  	unsafe_put_user(sig, &frame->sig, Efault);
b00d8f8f0b2b39 arch/x86/kernel/signal.c    Al Viro           2020-02-15  340  	unsafe_put_sigcontext(&frame->sc, fp, regs, set, Efault);
5c1f178094631e arch/x86/kernel/signal.c    Al Viro           2020-02-15  341  	unsafe_put_user(set->sig[1], &frame->extramask[0], Efault);
1a3e4ca41c5a38 arch/x86/kernel/signal_32.c Roland McGrath    2008-04-09  342  	if (current->mm->context.vdso)
6f121e548f8367 arch/x86/kernel/signal.c    Andy Lutomirski   2014-05-05  343  		restorer = current->mm->context.vdso +
0a6d1fa0d2b48f arch/x86/kernel/signal.c    Andy Lutomirski   2015-10-05  344  			vdso_image_32.sym___kernel_sigreturn;
9fbbd4dd17d071 arch/i386/kernel/signal.c   Andi Kleen        2007-02-13  345  	else
ade1af77129dea arch/x86/kernel/signal_32.c Jan Engelhardt    2008-01-30  346  		restorer = &frame->retcode;
235b80226b986d arch/x86/kernel/signal.c    Al Viro           2012-11-09  347  	if (ksig->ka.sa.sa_flags & SA_RESTORER)
235b80226b986d arch/x86/kernel/signal.c    Al Viro           2012-11-09  348  		restorer = ksig->ka.sa.sa_restorer;
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  349  
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  350  	/* Set up to return from userspace.  */
5c1f178094631e arch/x86/kernel/signal.c    Al Viro           2020-02-15  351  	unsafe_put_user(restorer, &frame->pretcode, Efault);
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  352  
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  353  	/*
7e907f48980d66 arch/x86/kernel/signal_32.c Ingo Molnar       2008-03-06  354  	 * This is popl %eax ; movl $__NR_sigreturn, %eax ; int $0x80
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  355  	 *
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  356  	 * WE DO NOT USE IT ANY MORE! It's only left here for historical
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  357  	 * reasons and because gdb uses it as a signature to notice
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  358  	 * signal handler stack frames.
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  359  	 */
5c1f178094631e arch/x86/kernel/signal.c    Al Viro           2020-02-15 @360  	unsafe_put_user(*((u64 *)&retcode), (u64 *)frame->retcode, Efault);
5c1f178094631e arch/x86/kernel/signal.c    Al Viro           2020-02-15  361  	user_access_end();
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  362  
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  363  	/* Set up registers for signal handler */
65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin    2008-01-30  364  	regs->sp = (unsigned long)frame;
235b80226b986d arch/x86/kernel/signal.c    Al Viro           2012-11-09  365  	regs->ip = (unsigned long)ksig->ka.sa.sa_handler;
65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin    2008-01-30  366  	regs->ax = (unsigned long)sig;
92bc2056855b32 arch/x86/kernel/signal_32.c Harvey Harrison   2008-02-08  367  	regs->dx = 0;
92bc2056855b32 arch/x86/kernel/signal_32.c Harvey Harrison   2008-02-08  368  	regs->cx = 0;
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  369  
65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin    2008-01-30  370  	regs->ds = __USER_DS;
65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin    2008-01-30  371  	regs->es = __USER_DS;
65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin    2008-01-30  372  	regs->ss = __USER_DS;
65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin    2008-01-30  373  	regs->cs = __USER_CS;
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  374  
283828f3c19ceb arch/i386/kernel/signal.c   David Howells     2006-01-18  375  	return 0;
b00d8f8f0b2b39 arch/x86/kernel/signal.c    Al Viro           2020-02-15  376  
b00d8f8f0b2b39 arch/x86/kernel/signal.c    Al Viro           2020-02-15  377  Efault:
b00d8f8f0b2b39 arch/x86/kernel/signal.c    Al Viro           2020-02-15  378  	user_access_end();
b00d8f8f0b2b39 arch/x86/kernel/signal.c    Al Viro           2020-02-15  379  	return -EFAULT;
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  380  }
^1da177e4c3f41 arch/i386/kernel/signal.c   Linus Torvalds    2005-04-16  381  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp


  reply	other threads:[~2022-04-27  3:46 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-26 16:42 [PATCH v3 00/46] Add KernelMemorySanitizer infrastructure Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 01/46] x86: add missing include to sparsemem.h Alexander Potapenko
2022-04-27 13:22   ` Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 02/46] stackdepot: reserve 5 extra bits in depot_stack_handle_t Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 03/46] kasan: common: adapt to the new prototype of __stack_depot_save() Alexander Potapenko
2022-04-27 12:47   ` Marco Elver
2022-04-26 16:42 ` [PATCH v3 04/46] instrumented.h: allow instrumenting both sides of copy_from_user() Alexander Potapenko
2022-04-27  4:36   ` kernel test robot
2022-06-01 17:09     ` Alexander Potapenko
2022-06-01 17:09       ` Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 05/46] x86: asm: instrument usercopy in get_user() and __put_user_size() Alexander Potapenko
2022-04-27  3:45   ` kernel test robot [this message]
2022-04-27  6:58   ` kernel test robot
2022-04-27  7:14   ` Arnd Bergmann
2022-06-02 11:20     ` Alexander Potapenko
2022-04-27 14:24   ` kernel test robot
2022-04-28  1:59   ` kernel test robot
2022-04-30 10:16   ` [x86] d216de19c8: kernel-selftests.x86.ioperm_32.fail kernel test robot
2022-04-30 10:16     ` kernel test robot
2022-04-26 16:42 ` [PATCH v3 06/46] asm-generic: instrument usercopy in cacheflush.h Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 07/46] kmsan: add ReST documentation Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 08/46] kmsan: introduce __no_sanitize_memory and __no_kmsan_checks Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 09/46] kmsan: mark noinstr as __no_sanitize_memory Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 10/46] x86: kmsan: pgtable: reduce vmalloc space Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 11/46] libnvdimm/pfn_dev: increase MAX_STRUCT_PAGE_SIZE Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 12/46] kmsan: add KMSAN runtime core Alexander Potapenko
2022-04-27  9:12   ` kernel test robot
2022-04-27 14:09   ` Marco Elver
2022-05-31 11:08     ` Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 13/46] kmsan: implement kmsan_init(), initialize READ_ONCE_NOCHECK() Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 14/46] kmsan: disable instrumentation of unsupported common kernel code Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 15/46] MAINTAINERS: add entry for KMSAN Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 16/46] kmsan: mm: maintain KMSAN metadata for page operations Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 17/46] kmsan: mm: call KMSAN hooks from SLUB code Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 18/46] kmsan: handle task creation and exiting Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 19/46] kmsan: init: call KMSAN initialization routines Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 20/46] instrumented.h: add KMSAN support Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 21/46] kmsan: unpoison @tlb in arch_tlb_gather_mmu() Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 22/46] kmsan: add iomap support Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 23/46] Input: libps2: mark data received in __ps2_command() as initialized Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 24/46] kmsan: dma: unpoison DMA mappings Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 25/46] kmsan: virtio: check/unpoison scatterlist in vring_map_one_sg() Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 26/46] kmsan: handle memory sent to/from USB Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 27/46] kmsan: instrumentation.h: add instrumentation_begin_with_regs() Alexander Potapenko
2022-04-27 13:28   ` Thomas Gleixner
2022-05-16 11:49     ` Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 28/46] kmsan: entry: handle register passing from uninstrumented code Alexander Potapenko
2022-04-27 13:32   ` Thomas Gleixner
2022-05-02 17:00     ` Alexander Potapenko
2022-05-02 22:00       ` Thomas Gleixner
2022-05-05 18:04         ` Alexander Potapenko
2022-05-05 21:56           ` Thomas Gleixner
2022-05-06 14:52             ` Alexander Potapenko
2022-05-06 16:14               ` Thomas Gleixner
2022-05-06 17:41                 ` Alexander Potapenko
2022-05-06 18:41                   ` Thomas Gleixner
2022-05-09 16:50                     ` Alexander Potapenko
2022-05-09 16:51                       ` Alexander Potapenko
2022-05-09 19:09                       ` Thomas Gleixner
2022-05-12 12:24                         ` Alexander Potapenko
2022-05-12 16:17                           ` Thomas Gleixner
2022-05-12 16:48                             ` Thomas Gleixner
2022-06-01 11:27                               ` Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 29/46] kmsan: add tests for KMSAN Alexander Potapenko
2022-04-26 16:42 ` [PATCH v3 30/46] kmsan: disable strscpy() optimization under KMSAN Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 31/46] crypto: kmsan: disable accelerated configs " Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 32/46] kmsan: disable physical page merging in biovec Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 33/46] kmsan: block: skip bio block merging logic for KMSAN Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 34/46] kmsan: kcov: unpoison area->list in kcov_remote_area_put() Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 35/46] security: kmsan: fix interoperability with auto-initialization Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 36/46] objtool: kmsan: list KMSAN API functions as uaccess-safe Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 37/46] x86: kmsan: make READ_ONCE_TASK_STACK() return initialized values Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 38/46] x86: kmsan: disable instrumentation of unsupported code Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 39/46] x86: kmsan: skip shadow checks in __switch_to() Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 40/46] x86: kmsan: handle open-coded assembly in lib/iomem.c Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 41/46] x86: kmsan: use __msan_ string functions where possible Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 42/46] x86: kmsan: sync metadata pages on page fault Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 43/46] x86: kasan: kmsan: support CONFIG_GENERIC_CSUM on x86, enable it for KASAN/KMSAN Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 44/46] x86: fs: kmsan: disable CONFIG_DCACHE_WORD_ACCESS Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 45/46] x86: kmsan: handle register passing from uninstrumented code Alexander Potapenko
2022-04-26 16:43 ` [PATCH v3 46/46] x86: kmsan: enable KMSAN builds for x86 Alexander Potapenko

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