linux-kernel - [jlayton:ceph-sparse-read 14/15] net/ceph/osd_client.c:5847:30: error: initializing 'struct ceph_sparse_extent *' with an expression of incompatible type 'struct ceph_sparse

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Date:   Sat, 19 Mar 2022 08:44:12 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jeff Layton <jlayton@...nel.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [jlayton:ceph-sparse-read 14/15] net/ceph/osd_client.c:5847:30:
 error: initializing 'struct ceph_sparse_extent *' with an expression of
 incompatible type 'struct ceph_sparse_extent'; take the address with &

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git ceph-sparse-read
head:   dd42d5af0df78fdd04a5a93c0488211435bd32e6
commit: 555a255575736e3b39f6b2c70574422439b765b6 [14/15] libceph: add sparse read support to OSD client
config: arm64-randconfig-r034-20220317 (https://download.01.org/0day-ci/archive/20220319/202203190851.4BjZDePa-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6e70e4056dff962ec634c5bd4f2f4105a0bef71)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git/commit/?id=555a255575736e3b39f6b2c70574422439b765b6
        git remote add jlayton https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git
        git fetch --no-tags jlayton ceph-sparse-read
        git checkout 555a255575736e3b39f6b2c70574422439b765b6
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash net/ceph/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> net/ceph/osd_client.c:5847:30: error: initializing 'struct ceph_sparse_extent *' with an expression of incompatible type 'struct ceph_sparse_extent'; take the address with &
                   struct ceph_sparse_extent *ext = sr->sr_extent[i];
                                              ^     ~~~~~~~~~~~~~~~~
                                                    &
   1 error generated.


vim +5847 net/ceph/osd_client.c

  5840	
  5841	#ifdef __BIG_ENDIAN
  5842	static inline void convert_extent_map(struct ceph_sparse_read *sr)
  5843	{
  5844		int i;
  5845	
  5846		for (i = 0; i < sr->sr_count; i++) {
> 5847			struct ceph_sparse_extent *ext = sr->sr_extent[i];
  5848	
  5849			ext->off = le64_to_cpu((__force __le32)ext->off);
  5850			ext->len = le64_to_cpu((__force __le32)ext->len);
  5851		}
  5852	}
  5853	#else
  5854	static inline void convert_extent_map(struct ceph_sparse_read *sr)
  5855	{
  5856	}
  5857	#endif
  5858	

---
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