linux-kernel - net/sched/act_meta_skbprio.c:43:25: sparse: sparse: cast to restricted _

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Message-ID: <202312141253.4bTcywD4-lkp@intel.com>
Date:   Thu, 14 Dec 2023 12:59:14 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jamal Hadi Salim <jhs@...atatu.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: net/sched/act_meta_skbprio.c:43:25: sparse: sparse: cast to
 restricted __be32

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5bd7ef53ffe5ca580e93e74eb8c81ed191ddc4bd
commit: 200e10f46936d95a553414f249cefb765194b235 Support to encoding decoding skb prio on IFE action
date:   8 years ago
config: i386-randconfig-063-20230903 (https://download.01.org/0day-ci/archive/20231214/202312141253.4bTcywD4-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/20231214/202312141253.4bTcywD4-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/202312141253.4bTcywD4-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> net/sched/act_meta_skbprio.c:43:25: sparse: sparse: cast to restricted __be32
>> net/sched/act_meta_skbprio.c:43:25: sparse: sparse: cast to restricted __be32
>> net/sched/act_meta_skbprio.c:43:25: sparse: sparse: cast to restricted __be32
>> net/sched/act_meta_skbprio.c:43:25: sparse: sparse: cast to restricted __be32
>> net/sched/act_meta_skbprio.c:43:25: sparse: sparse: cast to restricted __be32
>> net/sched/act_meta_skbprio.c:43:25: sparse: sparse: cast to restricted __be32
   In file included from include/linux/kernel.h:11,
                    from net/sched/act_meta_skbprio.c:14:
   include/linux/log2.h:22:1: warning: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Wattributes]
      22 | int ____ilog2_NaN(void);
         | ^~~

vim +43 net/sched/act_meta_skbprio.c

    38	
    39	static int skbprio_decode(struct sk_buff *skb, void *data, u16 len)
    40	{
    41		u32 ifeprio = *(u32 *)data;
    42	
  > 43		skb->priority = ntohl(ifeprio);
    44		return 0;
    45	}
    46	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki