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* [cilium:pr/new-api-tcx2 2/5] net/core/dev.c:3951:36: sparse: sparse: incompatible types in comparison expression (different address spaces):
@ 2023-05-04 19:54 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-05-04 19:54 UTC (permalink / raw)
  To: Daniel Borkmann; +Cc: oe-kbuild-all, Daniel Borkmann

tree:   https://github.com/cilium/linux.git pr/new-api-tcx2
head:   b69ee9c2b86789b9b26c3f833a3327d17a35f37c
commit: abe11a7d6ecffb6402a53bf8b0bd0fc113b916e9 [2/5] bpf: Add generic attach/detach/query API for multi-progs
config: arc-randconfig-s043-20230430 (https://download.01.org/0day-ci/archive/20230505/202305050359.puwtj8Mw-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/cilium/linux/commit/abe11a7d6ecffb6402a53bf8b0bd0fc113b916e9
        git remote add cilium https://github.com/cilium/linux.git
        git fetch --no-tags cilium pr/new-api-tcx2
        git checkout abe11a7d6ecffb6402a53bf8b0bd0fc113b916e9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc SHELL=/bin/bash net/core/ net/sched/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305050359.puwtj8Mw-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   net/core/dev.c:3314:23: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted __wsum [usertype] csum @@     got unsigned int @@
   net/core/dev.c:3314:23: sparse:     expected restricted __wsum [usertype] csum
   net/core/dev.c:3314:23: sparse:     got unsigned int
   net/core/dev.c:3314:23: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted __wsum [usertype] csum @@     got unsigned int @@
   net/core/dev.c:3314:23: sparse:     expected restricted __wsum [usertype] csum
   net/core/dev.c:3314:23: sparse:     got unsigned int
   net/core/dev.c:3314:23: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] val @@     got restricted __wsum @@
   net/core/dev.c:3314:23: sparse:     expected unsigned int [usertype] val
   net/core/dev.c:3314:23: sparse:     got restricted __wsum
   net/core/dev.c:3314:23: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted __wsum [usertype] csum @@     got unsigned int @@
   net/core/dev.c:3314:23: sparse:     expected restricted __wsum [usertype] csum
   net/core/dev.c:3314:23: sparse:     got unsigned int
   net/core/dev.c:3314:23: sparse: sparse: cast from restricted __wsum
   net/core/dev.c:3314:23: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted __wsum [usertype] csum @@     got unsigned int @@
   net/core/dev.c:3314:23: sparse:     expected restricted __wsum [usertype] csum
   net/core/dev.c:3314:23: sparse:     got unsigned int
   net/core/dev.c:3314:23: sparse: sparse: cast from restricted __wsum
   net/core/dev.c:3314:23: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted __wsum [usertype] csum @@     got unsigned int @@
   net/core/dev.c:3314:23: sparse:     expected restricted __wsum [usertype] csum
   net/core/dev.c:3314:23: sparse:     got unsigned int
   net/core/dev.c:3314:23: sparse: sparse: cast from restricted __wsum
   net/core/dev.c:3314:23: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted __wsum [usertype] csum @@     got unsigned int @@
   net/core/dev.c:3314:23: sparse:     expected restricted __wsum [usertype] csum
   net/core/dev.c:3314:23: sparse:     got unsigned int
   net/core/dev.c:3314:23: sparse: sparse: cast from restricted __wsum
>> net/core/dev.c:3951:36: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> net/core/dev.c:3951:36: sparse:    struct mini_Qdisc [noderef] __rcu *
>> net/core/dev.c:3951:36: sparse:    struct mini_Qdisc *
   net/core/dev.c:411:33: sparse: sparse: context imbalance in 'unlist_netdevice' - different lock contexts for basic block
   net/core/dev.c: note: in included file (through include/net/checksum.h, include/linux/skbuff.h, include/linux/if_ether.h):
   arch/arc/include/asm/checksum.h:27:26: sparse: sparse: restricted __wsum degrades to integer
   arch/arc/include/asm/checksum.h:27:36: sparse: sparse: restricted __wsum degrades to integer
   arch/arc/include/asm/checksum.h:29:11: sparse: sparse: bad assignment (-=) to restricted __wsum
   arch/arc/include/asm/checksum.h:30:16: sparse: sparse: restricted __wsum degrades to integer
   arch/arc/include/asm/checksum.h:30:18: sparse: sparse: incorrect type in return expression (different base types) @@     expected restricted __sum16 @@     got unsigned int @@
   arch/arc/include/asm/checksum.h:30:18: sparse:     expected restricted __sum16
   arch/arc/include/asm/checksum.h:30:18: sparse:     got unsigned int
   net/core/dev.c:3817:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block
   net/core/dev.c:5190:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block
--
>> net/sched/sch_ingress.c:91:57: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected struct mini_Qdisc [noderef] __rcu **p_miniq @@     got struct mini_Qdisc ** @@
   net/sched/sch_ingress.c:91:57: sparse:     expected struct mini_Qdisc [noderef] __rcu **p_miniq
   net/sched/sch_ingress.c:91:57: sparse:     got struct mini_Qdisc **
   net/sched/sch_ingress.c:243:65: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected struct mini_Qdisc [noderef] __rcu **p_miniq @@     got struct mini_Qdisc ** @@
   net/sched/sch_ingress.c:243:65: sparse:     expected struct mini_Qdisc [noderef] __rcu **p_miniq
   net/sched/sch_ingress.c:243:65: sparse:     got struct mini_Qdisc **
   net/sched/sch_ingress.c:261:64: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected struct mini_Qdisc [noderef] __rcu **p_miniq @@     got struct mini_Qdisc ** @@
   net/sched/sch_ingress.c:261:64: sparse:     expected struct mini_Qdisc [noderef] __rcu **p_miniq
   net/sched/sch_ingress.c:261:64: sparse:     got struct mini_Qdisc **

vim +3951 net/core/dev.c

  3945	
  3946	#ifdef CONFIG_NET_XGRESS
  3947	static int tc_run(struct tcx_entry *entry, struct sk_buff *skb)
  3948	{
  3949		int ret = TC_ACT_UNSPEC;
  3950	#ifdef CONFIG_NET_CLS_ACT
> 3951		struct mini_Qdisc *miniq = rcu_dereference_bh(entry->miniq);
  3952		struct tcf_result res;
  3953	
  3954		if (!miniq)
  3955			return ret;
  3956	
  3957		tc_skb_cb(skb)->mru = 0;
  3958		tc_skb_cb(skb)->post_ct = false;
  3959	
  3960		mini_qdisc_bstats_cpu_update(miniq, skb);
  3961		ret = tcf_classify(skb, miniq->block, miniq->filter_list, &res, false);
  3962		/* Only tcf related quirks below. */
  3963		switch (ret) {
  3964		case TC_ACT_SHOT:
  3965			mini_qdisc_qstats_cpu_drop(miniq);
  3966			break;
  3967		case TC_ACT_OK:
  3968		case TC_ACT_RECLASSIFY:
  3969			skb->tc_index = TC_H_MIN(res.classid);
  3970			break;
  3971		}
  3972	#endif /* CONFIG_NET_CLS_ACT */
  3973		return ret;
  3974	}
  3975	

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

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