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From: kbuild test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: [linux-next:master 3942/14131] net/core/neighbour.c:3460:5: sparse: int extern [addressable] [signed] [toplevel] neigh_proc_dointvec( ... )
Date: Tue, 09 Jun 2020 23:10:32 +0800	[thread overview]
Message-ID: <20200609151032.GM23011@xsang-OptiPlex-9020> (raw)

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   e7b08814b16b80a0bf76eeca16317f8c2ed23b8c
commit: 32927393dc1ccd60fb2bdc05b9e8e88753761469 [3942/14131] sysctl: pass kernel pointers to ->proc_handler
:::::: branch date: 3 days ago
:::::: commit date: 5 weeks ago
config: i386-randconfig-s002-20200601 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-13) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-243-gc100a7ab-dirty
        git checkout 32927393dc1ccd60fb2bdc05b9e8e88753761469
        # save the attached .config to linux build tree
        make W=1 C=1 ARCH=i386 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

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


sparse warnings: (new ones prefixed by >>)

   net/core/neighbour.c:3460:5: sparse: sparse: symbol 'neigh_proc_dointvec' redeclared with different type (incompatible argument 3 (different address spaces)):
>> net/core/neighbour.c:3460:5: sparse:    int extern [addressable] [signed] [toplevel] neigh_proc_dointvec( ... )
>> include/net/neighbour.h:394:5: sparse: note: previously declared as:
   include/net/neighbour.h:394:5: sparse:    int extern [addressable] [signed] [toplevel] neigh_proc_dointvec( ... )
   net/core/neighbour.c:3470:5: sparse: sparse: symbol 'neigh_proc_dointvec_jiffies' redeclared with different type (incompatible argument 3 (different address spaces)):
>> net/core/neighbour.c:3470:5: sparse:    int extern [addressable] [signed] [toplevel] neigh_proc_dointvec_jiffies( ... )
   include/net/neighbour.h:396:5: sparse: note: previously declared as:
>> include/net/neighbour.h:396:5: sparse:    int extern [addressable] [signed] [toplevel] neigh_proc_dointvec_jiffies( ... )
   net/core/neighbour.c:3490:5: sparse: sparse: symbol 'neigh_proc_dointvec_ms_jiffies' redeclared with different type (incompatible argument 3 (different address spaces)):
   net/core/neighbour.c:3490:5: sparse:    int extern [addressable] [signed] [toplevel] neigh_proc_dointvec_ms_jiffies( ... )
   include/net/neighbour.h:399:5: sparse: note: previously declared as:
   include/net/neighbour.h:399:5: sparse:    int extern [addressable] [signed] [toplevel] neigh_proc_dointvec_ms_jiffies( ... )
   net/core/neighbour.c:348:12: sparse: sparse: context imbalance in '__neigh_ifdown' - wrong count at exit
   net/core/neighbour.c:803:9: sparse: sparse: context imbalance in 'pneigh_ifdown_and_unlock' - unexpected unlock
--
   drivers/char/random.c:2100:50: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected void * @@     got void [noderef] <asn:1> *buffer @@
>> drivers/char/random.c:2100:50: sparse:     expected void *
   drivers/char/random.c:2100:50: sparse:     got void [noderef] <asn:1> *buffer
   drivers/char/random.c:2117:35: sparse: sparse: incorrect type in initializer (incompatible argument 3 (different address spaces)) @@     expected int ( [usertype] *proc_handler )( ... ) @@     got int ( * )( ... ) @@
   drivers/char/random.c:2117:35: sparse:     expected int ( [usertype] *proc_handler )( ... )
>> drivers/char/random.c:2117:35: sparse:     got int ( * )( ... )
--
   net/ipv6/ndisc.c:1850:55: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected void [noderef] <asn:1> *buffer @@     got void *buffer @@
>> net/ipv6/ndisc.c:1850:55: sparse:     expected void [noderef] <asn:1> *buffer
   net/ipv6/ndisc.c:1850:55: sparse:     got void *buffer
   net/ipv6/ndisc.c:1854:51: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected void [noderef] <asn:1> *buffer @@     got void *buffer @@
   net/ipv6/ndisc.c:1854:51: sparse:     expected void [noderef] <asn:1> *buffer
   net/ipv6/ndisc.c:1854:51: sparse:     got void *buffer
   net/ipv6/ndisc.c:1859:54: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected void [noderef] <asn:1> *buffer @@     got void *buffer @@
   net/ipv6/ndisc.c:1859:54: sparse:     expected void [noderef] <asn:1> *buffer
   net/ipv6/ndisc.c:1859:54: sparse:     got void *buffer
   net/ipv6/ndisc.c:1838:5: sparse: sparse: symbol 'ndisc_ifinfo_sysctl_change' redeclared with different type (incompatible argument 3 (different address spaces)):
   net/ipv6/ndisc.c:1838:5: sparse:    int extern [addressable] [signed] [toplevel] ndisc_ifinfo_sysctl_change( ... )
   include/net/ndisc.h:496:5: sparse: note: previously declared as:
   include/net/ndisc.h:496:5: sparse:    int extern [addressable] [signed] [toplevel] ndisc_ifinfo_sysctl_change( ... )
   include/net/addrconf.h:478:36: sparse: sparse: restricted __be32 degrades to integer

# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=32927393dc1ccd60fb2bdc05b9e8e88753761469
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git remote update linux-next
git checkout 32927393dc1ccd60fb2bdc05b9e8e88753761469
vim +3460 net/core/neighbour.c

1f9248e5606afc Jiri Pirko        2013-12-07  3459  
32927393dc1ccd Christoph Hellwig 2020-04-24 @3460  int neigh_proc_dointvec(struct ctl_table *ctl, int write, void *buffer,
32927393dc1ccd Christoph Hellwig 2020-04-24  3461  			size_t *lenp, loff_t *ppos)
cb5b09c17fe600 Jiri Pirko        2013-12-07  3462  {
1d4c8c29841b99 Jiri Pirko        2013-12-07  3463  	int ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
1d4c8c29841b99 Jiri Pirko        2013-12-07  3464  
1d4c8c29841b99 Jiri Pirko        2013-12-07  3465  	neigh_proc_update(ctl, write);
1d4c8c29841b99 Jiri Pirko        2013-12-07  3466  	return ret;
cb5b09c17fe600 Jiri Pirko        2013-12-07  3467  }
cb5b09c17fe600 Jiri Pirko        2013-12-07  3468  EXPORT_SYMBOL(neigh_proc_dointvec);
cb5b09c17fe600 Jiri Pirko        2013-12-07  3469  
32927393dc1ccd Christoph Hellwig 2020-04-24 @3470  int neigh_proc_dointvec_jiffies(struct ctl_table *ctl, int write, void *buffer,
cb5b09c17fe600 Jiri Pirko        2013-12-07  3471  				size_t *lenp, loff_t *ppos)
cb5b09c17fe600 Jiri Pirko        2013-12-07  3472  {
1d4c8c29841b99 Jiri Pirko        2013-12-07  3473  	int ret = proc_dointvec_jiffies(ctl, write, buffer, lenp, ppos);
1d4c8c29841b99 Jiri Pirko        2013-12-07  3474  
1d4c8c29841b99 Jiri Pirko        2013-12-07  3475  	neigh_proc_update(ctl, write);
1d4c8c29841b99 Jiri Pirko        2013-12-07  3476  	return ret;
cb5b09c17fe600 Jiri Pirko        2013-12-07  3477  }
cb5b09c17fe600 Jiri Pirko        2013-12-07  3478  EXPORT_SYMBOL(neigh_proc_dointvec_jiffies);
cb5b09c17fe600 Jiri Pirko        2013-12-07  3479  

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

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             reply	other threads:[~2020-06-09 15:10 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-09 15:10 kbuild test robot [this message]
  -- strict thread matches above, loose matches on Subject: below --
2020-06-01 14:29 [linux-next:master 3942/14131] net/core/neighbour.c:3460:5: sparse: int extern [addressable] [signed] [toplevel] neigh_proc_dointvec( ... ) kbuild test robot

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