Re: [PATCH net-next] flow_dissector: Add IPSEC dissectors

[kernel test robot <lkp@intel.com>]

:::::: 
:::::: Manual check reason: "low confidence static check warning: include/net/flow_dissector.h:442:50: sparse: sparse: shift too big (32) for type int"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20230725032451.505189-1-rkannoth@marvell.com>
References: <20230725032451.505189-1-rkannoth@marvell.com>
TO: Ratheesh Kannoth <rkannoth@marvell.com>
TO: netdev@vger.kernel.org
TO: linux-kernel@vger.kernel.org
CC: jhs@mojatatu.com
CC: xiyou.wangcong@gmail.com
CC: jiri@resnulli.us
CC: davem@davemloft.net
CC: edumazet@google.com
CC: kuba@kernel.org
CC: pabeni@redhat.com
CC: Ratheesh Kannoth <rkannoth@marvell.com>

Hi Ratheesh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Ratheesh-Kannoth/flow_dissector-Add-IPSEC-dissectors/20230725-112644
base:   net-next/main
patch link:    https://lore.kernel.org/r/20230725032451.505189-1-rkannoth%40marvell.com
patch subject: [PATCH net-next] flow_dissector: Add IPSEC dissectors
:::::: branch date: 11 hours ago
:::::: commit date: 11 hours ago
config: powerpc-randconfig-r093-20230725 (https://download.01.org/0day-ci/archive/20230725/202307252253.1DutjtIg-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230725/202307252253.1DutjtIg-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@intel.com>
| Closes: https://lore.kernel.org/r/202307252253.1DutjtIg-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   net/core/flow_dissector.c: note: in included file (through include/linux/if_pppox.h):
   include/uapi/linux/if_pppox.h:153:29: sparse: sparse: array of flexible structures
   net/core/flow_dissector.c: note: in included file (through include/linux/skbuff.h):
>> include/net/flow_dissector.h:442:50: sparse: sparse: shift too big (32) for type int

vim +442 include/net/flow_dissector.h

bcc83839ffdb06 Tom Herbert       2015-09-01  433  
c6cc1ca7f4d70c Tom Herbert       2015-09-01  434  u32 flow_hash_from_keys(struct flow_keys *keys);
5dec597e5cd0f4 Matteo Croce      2019-10-29  435  void skb_flow_get_icmp_tci(const struct sk_buff *skb,
5dec597e5cd0f4 Matteo Croce      2019-10-29  436  			   struct flow_dissector_key_icmp *key_icmp,
f96533cded173b Alexander Lobakin 2021-03-14  437  			   const void *data, int thoff, int hlen);
c6cc1ca7f4d70c Tom Herbert       2015-09-01  438  
8de2d793daf784 Amir Vadai        2016-03-08  439  static inline bool dissector_uses_key(const struct flow_dissector *flow_dissector,
8de2d793daf784 Amir Vadai        2016-03-08  440  				      enum flow_dissector_key_id key_id)
8de2d793daf784 Amir Vadai        2016-03-08  441  {
8de2d793daf784 Amir Vadai        2016-03-08 @442  	return flow_dissector->used_keys & (1 << key_id);
8de2d793daf784 Amir Vadai        2016-03-08  443  }
8de2d793daf784 Amir Vadai        2016-03-08  444  

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