linux-kernel - drivers/net/ipvlan/ipvlan_core.c:57:36: sparse: sparse: incorrect type in argument 1 (different base types)

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Date:   Thu, 9 Nov 2023 09:15:30 +0800
From:   kernel test robot <lkp@...el.com>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: drivers/net/ipvlan/ipvlan_core.c:57:36: sparse: sparse: incorrect
 type in argument 1 (different base types)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6bc986ab839c844e78a2333a02e55f02c9e57935
commit: c675e06a98a474f7ad0af32ce467613da818da52 ipvlan: decouple l3s mode dependencies from other modes
date:   4 years, 9 months ago
config: i386-randconfig-062-20230914 (https://download.01.org/0day-ci/archive/20231109/202311090900.o5hCIMpN-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231109/202311090900.o5hCIMpN-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311090900.o5hCIMpN-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/net/ipvlan/ipvlan_core.c:57:36: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] a @@     got restricted __be32 const [usertype] s_addr @@
   drivers/net/ipvlan/ipvlan_core.c:57:36: sparse:     expected unsigned int [usertype] a
   drivers/net/ipvlan/ipvlan_core.c:57:36: sparse:     got restricted __be32 const [usertype] s_addr

vim +57 drivers/net/ipvlan/ipvlan_core.c

2ad7bf3638411c Mahesh Bandewar 2014-11-23  52  
2ad7bf3638411c Mahesh Bandewar 2014-11-23  53  static u8 ipvlan_get_v4_hash(const void *iaddr)
2ad7bf3638411c Mahesh Bandewar 2014-11-23  54  {
2ad7bf3638411c Mahesh Bandewar 2014-11-23  55  	const struct in_addr *ip4_addr = iaddr;
2ad7bf3638411c Mahesh Bandewar 2014-11-23  56  
2ad7bf3638411c Mahesh Bandewar 2014-11-23 @57  	return jhash_1word(ip4_addr->s_addr, ipvlan_jhash_secret) &
2ad7bf3638411c Mahesh Bandewar 2014-11-23  58  	       IPVLAN_HASH_MASK;
2ad7bf3638411c Mahesh Bandewar 2014-11-23  59  }
2ad7bf3638411c Mahesh Bandewar 2014-11-23  60  

:::::: The code at line 57 was first introduced by commit
:::::: 2ad7bf3638411cb547f2823df08166c13ab04269 ipvlan: Initial check-in of the IPVLAN driver.

:::::: TO: Mahesh Bandewar <maheshb@...gle.com>
:::::: CC: David S. Miller <davem@...emloft.net>

-- 
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