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* drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
@ 2026-09-22  8:53 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-09-22  8:53 UTC (permalink / raw)
  To: Thomas Weißschuh 
  Cc: oe-kbuild-all, linux-kernel, Shuah Khan, Johannes Berg, David Gow

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f0100363d8c374bd8e9ea7c9ba02744f0b802ca4
commit: 031cdd3bc3f369553933c1b0f4cb18000162c8ff kunit: Enable PCI on UML without triggering WARN()
date:   1 year ago
config: um-randconfig-r1306-20260922 (https://download.01.org/0day-ci/archive/20260922/202609221636.xKdion6f-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260922/202609221636.xKdion6f-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
| Fixes: 031cdd3bc3f3 ("kunit: Enable PCI on UML without triggering WARN()")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609221636.xKdion6f-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2325:25: sparse: sparse: cast to restricted __be64
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1304:24: sparse: sparse: cast to restricted __be32
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1304:24: sparse: sparse: cast to restricted __be32
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1304:24: sparse: sparse: cast to restricted __be32
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1304:24: sparse: sparse: cast to restricted __be32
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1304:24: sparse: sparse: cast to restricted __be32
>> drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1304:24: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32
   drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1323:17: sparse: sparse: cast to restricted __be32

vim +2325 drivers/scsi/cxgbi/cxgb4i/cxgb4i.c

7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2306  
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2307  #define RX_PULL_LEN	128
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2308  static int t4_uld_rx_handler(void *handle, const __be64 *rsp,
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2309  				const struct pkt_gl *pgl)
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2310  {
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2311  	const struct cpl_act_establish *rpl;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2312  	struct sk_buff *skb;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2313  	unsigned int opc;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2314  	struct cxgbi_device *cdev = handle;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2315  
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2316  	if (pgl == NULL) {
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2317  		unsigned int len = 64 - sizeof(struct rsp_ctrl) - 8;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2318  
24d3f95a5b6082 kxie@chelsio.com 2010-09-23  2319  		skb = alloc_wr(len, 0, GFP_ATOMIC);
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2320  		if (!skb)
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2321  			goto nomem;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2322  		skb_copy_to_linear_data(skb, &rsp[1], len);
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2323  	} else {
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2324  		if (unlikely(*(u8 *)rsp != *(u8 *)pgl->va)) {
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16 @2325  			pr_info("? FL 0x%p,RSS%#llx,FL %#llx,len %u.\n",
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2326  				pgl->va, be64_to_cpu(*rsp),
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2327  				be64_to_cpu(*(u64 *)pgl->va),
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2328  				pgl->tot_len);
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2329  			return 0;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2330  		}
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2331  		skb = cxgb4_pktgl_to_skb(pgl, RX_PULL_LEN, RX_PULL_LEN);
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2332  		if (unlikely(!skb))
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2333  			goto nomem;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2334  	}
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2335  
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2336  	rpl = (struct cpl_act_establish *)skb->data;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2337  	opc = rpl->ot.opcode;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2338  	log_debug(1 << CXGBI_DBG_TOE,
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2339  		"cdev %p, opcode 0x%x(0x%x,0x%x), skb %p.\n",
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2340  		 cdev, opc, rpl->ot.opcode_tid, ntohl(rpl->ot.opcode_tid), skb);
ccc495efb326d1 Dan Carpenter    2018-04-03  2341  	if (opc >= ARRAY_SIZE(cxgb4i_cplhandlers) || !cxgb4i_cplhandlers[opc]) {
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2342  		pr_err("No handler for opcode 0x%x.\n", opc);
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2343  		__kfree_skb(skb);
ccc495efb326d1 Dan Carpenter    2018-04-03  2344  	} else
ccc495efb326d1 Dan Carpenter    2018-04-03  2345  		cxgb4i_cplhandlers[opc](cdev, skb);
ccc495efb326d1 Dan Carpenter    2018-04-03  2346  
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2347  	return 0;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2348  nomem:
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2349  	log_debug(1 << CXGBI_DBG_TOE, "OOM bailing out.\n");
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2350  	return 1;
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2351  }
7b36b6e03b0d6c kxie@chelsio.com 2010-08-16  2352  

:::::: The code at line 2325 was first introduced by commit
:::::: 7b36b6e03b0d6cee0948593a6a11841a457695b9 [SCSI] cxgb4i v5: iscsi driver

:::::: TO: kxie@chelsio.com <kxie@chelsio.com>
:::::: CC: James Bottomley <James.Bottomley@suse.de>

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

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