[linux-next:master 5111/7889] drivers/net/ethernet/marvell/octeontx2/af/rvu.c:722:21: sparse: sparse: incorrect type in assignment (different address spaces)

[linux-next:master 5111/7889] drivers/net/ethernet/marvell/octeontx2/af/rvu.c:722:21: sparse: sparse: incorrect type in assignment (different address spaces)

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   d44a64766795839eaa0f79a9e5365e8a794a1642
commit: 4f4eebf26f0da871fea5b3c489eafce2fbcda8bb [5111/7889] octeontx2-af: Optimize data retrieval from firmware
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-174-g094d5a94-dirty
        git checkout 4f4eebf26f0da871fea5b3c489eafce2fbcda8bb
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/net/ethernet/marvell/octeontx2/af/rvu.c:722:21: sparse: sparse: incorrect type in assignment (different address spaces) @@    expected struct rvu_fwdata *fwdata @@    got void struct rvu_fwdata *fwdata @@
   drivers/net/ethernet/marvell/octeontx2/af/rvu.c:722:21: sparse:    expected struct rvu_fwdata *fwdata
   drivers/net/ethernet/marvell/octeontx2/af/rvu.c:722:21: sparse:    got void [noderef] <asn:2> *
>> drivers/net/ethernet/marvell/octeontx2/af/rvu.c:728:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@    expected void volatile [noderef] <asn:2> *addr @@    got [noderef] <asn:2> *addr @@
   drivers/net/ethernet/marvell/octeontx2/af/rvu.c:728:28: sparse:    expected void volatile [noderef] <asn:2> *addr
   drivers/net/ethernet/marvell/octeontx2/af/rvu.c:728:28: sparse:    got struct rvu_fwdata *fwdata
   drivers/net/ethernet/marvell/octeontx2/af/rvu.c:741:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@    expected void volatile [noderef] <asn:2> *addr @@    got [noderef] <asn:2> *addr @@
   drivers/net/ethernet/marvell/octeontx2/af/rvu.c:741:28: sparse:    expected void volatile [noderef] <asn:2> *addr
   drivers/net/ethernet/marvell/octeontx2/af/rvu.c:741:28: sparse:    got struct rvu_fwdata *fwdata

vim +722 drivers/net/ethernet/marvell/octeontx2/af/rvu.c

   712	
   713	static int rvu_fwdata_init(struct rvu *rvu)
   714	{
   715		u64 fwdbase;
   716		int err;
   717	
   718		/* Get firmware data base address */
   719		err = cgx_get_fwdata_base(&fwdbase);
   720		if (err)
   721			goto fail;
 > 722		rvu->fwdata = ioremap_wc(fwdbase, sizeof(struct rvu_fwdata));
   723		if (!rvu->fwdata)
   724			goto fail;
   725		if (!is_rvu_fwdata_valid(rvu)) {
   726			dev_err(rvu->dev,
   727				"Mismatch in 'fwdata' struct btw kernel and firmware\n");
 > 728			iounmap(rvu->fwdata);
   729			rvu->fwdata = NULL;
   730			return -EINVAL;
   731		}
   732		return 0;
   733	fail:
   734		dev_info(rvu->dev, "Unable to fetch 'fwdata' from firmware\n");
   735		return -EIO;
   736	}
   737	

---
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