linux-kernel - drivers/net/ethernet/marvell/octeontx2/af/rvu.c:722:21: sparse: expected struct rvu

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Date:   Wed, 26 Aug 2020 22:31:07 +0800
From:   kernel test robot <lkp@...el.com>
To:     Linu Cherian <lcherian@...vell.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Christina Jacob <cjacob@...vell.com>,
        Rakesh Babu <rsaladi2@...vell.com>,
        Sunil Goutham <sgoutham@...vell.com>
Subject: drivers/net/ethernet/marvell/octeontx2/af/rvu.c:722:21: sparse:
 expected struct rvu_fwdata

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   2ac69819ba9e3d8d550bb5d2d2df74848e556812
commit: 4f4eebf26f0da871fea5b3c489eafce2fbcda8bb octeontx2-af: Optimize data retrieval from firmware
date:   6 months ago
:::::: branch date: 6 hours ago
:::::: commit date: 6 months ago
config: powerpc-randconfig-s031-20200826 (attached as .config)
compiler: powerpc64le-linux-gcc (GCC) 9.3.0
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: v0.6.2-191-g10164920-dirty
        git checkout 4f4eebf26f0da871fea5b3c489eafce2fbcda8bb
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.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 [noderef] <asn:2> * @@
>> 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 struct rvu_fwdata *fwdata @@
   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 struct rvu_fwdata *fwdata @@
   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

# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f4eebf26f0da871fea5b3c489eafce2fbcda8bb
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4f4eebf26f0da871fea5b3c489eafce2fbcda8bb
vim +722 drivers/net/ethernet/marvell/octeontx2/af/rvu.c

4f4eebf26f0da87 Linu Cherian 2020-03-02  712  
4f4eebf26f0da87 Linu Cherian 2020-03-02  713  static int rvu_fwdata_init(struct rvu *rvu)
4f4eebf26f0da87 Linu Cherian 2020-03-02  714  {
4f4eebf26f0da87 Linu Cherian 2020-03-02  715  	u64 fwdbase;
4f4eebf26f0da87 Linu Cherian 2020-03-02  716  	int err;
4f4eebf26f0da87 Linu Cherian 2020-03-02  717  
4f4eebf26f0da87 Linu Cherian 2020-03-02  718  	/* Get firmware data base address */
4f4eebf26f0da87 Linu Cherian 2020-03-02  719  	err = cgx_get_fwdata_base(&fwdbase);
4f4eebf26f0da87 Linu Cherian 2020-03-02  720  	if (err)
4f4eebf26f0da87 Linu Cherian 2020-03-02  721  		goto fail;
4f4eebf26f0da87 Linu Cherian 2020-03-02 @722  	rvu->fwdata = ioremap_wc(fwdbase, sizeof(struct rvu_fwdata));
4f4eebf26f0da87 Linu Cherian 2020-03-02  723  	if (!rvu->fwdata)
4f4eebf26f0da87 Linu Cherian 2020-03-02  724  		goto fail;
4f4eebf26f0da87 Linu Cherian 2020-03-02  725  	if (!is_rvu_fwdata_valid(rvu)) {
4f4eebf26f0da87 Linu Cherian 2020-03-02  726  		dev_err(rvu->dev,
4f4eebf26f0da87 Linu Cherian 2020-03-02  727  			"Mismatch in 'fwdata' struct btw kernel and firmware\n");
4f4eebf26f0da87 Linu Cherian 2020-03-02 @728  		iounmap(rvu->fwdata);
4f4eebf26f0da87 Linu Cherian 2020-03-02  729  		rvu->fwdata = NULL;
4f4eebf26f0da87 Linu Cherian 2020-03-02  730  		return -EINVAL;
4f4eebf26f0da87 Linu Cherian 2020-03-02  731  	}
4f4eebf26f0da87 Linu Cherian 2020-03-02  732  	return 0;
4f4eebf26f0da87 Linu Cherian 2020-03-02  733  fail:
4f4eebf26f0da87 Linu Cherian 2020-03-02  734  	dev_info(rvu->dev, "Unable to fetch 'fwdata' from firmware\n");
4f4eebf26f0da87 Linu Cherian 2020-03-02  735  	return -EIO;
4f4eebf26f0da87 Linu Cherian 2020-03-02  736  }
4f4eebf26f0da87 Linu Cherian 2020-03-02  737  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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