[ammarfaizi2-block:dhowells/linux-fs/netfs-lib 2/19] fs/netfs/objects.c:48:2: error: implicit declaration of function 'netfs_proc_add_writeback' is invalid in C99

[ammarfaizi2-block:dhowells/linux-fs/netfs-lib 2/19] fs/netfs/objects.c:48:2: error: implicit declaration of function 'netfs_proc_add_writeback' is invalid in C99

[kernel test robot]

tree:   https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/netfs-lib
head:   581c77dd1ab4abe122b649ed7118b3581ff1a437
commit: 20239f3d18983c183a267ab537919bc88990b832 [2/19] netfs: Add a procfile to list in-progress requests
config: s390-buildonly-randconfig-r002-20220412 (https://download.01.org/0day-ci/archive/20220413/202204131520.EiLQsAAH-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project fe2478d44e4f7f191c43fef629ac7a23d0251e72)
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 s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-linux-gnu
        # https://github.com/ammarfaizi2/linux-block/commit/20239f3d18983c183a267ab537919bc88990b832
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/netfs-lib
        git checkout 20239f3d18983c183a267ab537919bc88990b832
        # 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=s390 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> fs/netfs/objects.c:48:2: error: implicit declaration of function 'netfs_proc_add_writeback' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
           netfs_proc_add_writeback(rreq);
           ^
   fs/netfs/objects.c:48:2: note: did you mean 'netfs_proc_add_rreq'?
   fs/netfs/internal.h:51:20: note: 'netfs_proc_add_rreq' declared here
   static inline void netfs_proc_add_rreq(struct netfs_io_request *rreq) {}
                      ^
>> fs/netfs/objects.c:80:2: error: implicit declaration of function 'netfs_proc_del_writeback' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
           netfs_proc_del_writeback(rreq);
           ^
   fs/netfs/objects.c:80:2: note: did you mean 'netfs_proc_del_rreq'?
   fs/netfs/internal.h:52:20: note: 'netfs_proc_del_rreq' declared here
   static inline void netfs_proc_del_rreq(struct netfs_io_request *rreq) {}
                      ^
   2 errors generated.


vim +/netfs_proc_add_writeback +48 fs/netfs/objects.c

    10	
    11	/*
    12	 * Allocate an I/O request and initialise it.
    13	 */
    14	struct netfs_io_request *netfs_alloc_request(struct address_space *mapping,
    15						     struct file *file,
    16						     loff_t start, size_t len,
    17						     enum netfs_io_origin origin)
    18	{
    19		static atomic_t debug_ids;
    20		struct inode *inode = file ? file_inode(file) : mapping->host;
    21		struct netfs_i_context *ctx = netfs_i_context(inode);
    22		struct netfs_io_request *rreq;
    23		int ret;
    24	
    25		rreq = kzalloc(sizeof(struct netfs_io_request), GFP_KERNEL);
    26		if (!rreq)
    27			return ERR_PTR(-ENOMEM);
    28	
    29		rreq->start	= start;
    30		rreq->len	= len;
    31		rreq->origin	= origin;
    32		rreq->netfs_ops	= ctx->ops;
    33		rreq->mapping	= mapping;
    34		rreq->inode	= inode;
    35		rreq->i_size	= i_size_read(inode);
    36		rreq->debug_id	= atomic_inc_return(&debug_ids);
    37		INIT_LIST_HEAD(&rreq->subrequests);
    38		refcount_set(&rreq->ref, 1);
    39		__set_bit(NETFS_RREQ_IN_PROGRESS, &rreq->flags);
    40		if (rreq->netfs_ops->init_request) {
    41			ret = rreq->netfs_ops->init_request(rreq, file);
    42			if (ret < 0) {
    43				kfree(rreq);
    44				return ERR_PTR(ret);
    45			}
    46		}
    47	
  > 48		netfs_proc_add_writeback(rreq);
    49		netfs_stat(&netfs_n_rh_rreq);
    50		return rreq;
    51	}
    52	
    53	void netfs_get_request(struct netfs_io_request *rreq, enum netfs_rreq_ref_trace what)
    54	{
    55		int r;
    56	
    57		__refcount_inc(&rreq->ref, &r);
    58		trace_netfs_rreq_ref(rreq->debug_id, r + 1, what);
    59	}
    60	
    61	void netfs_clear_subrequests(struct netfs_io_request *rreq, bool was_async)
    62	{
    63		struct netfs_io_subrequest *subreq;
    64	
    65		while (!list_empty(&rreq->subrequests)) {
    66			subreq = list_first_entry(&rreq->subrequests,
    67						  struct netfs_io_subrequest, rreq_link);
    68			list_del(&subreq->rreq_link);
    69			netfs_put_subrequest(subreq, was_async,
    70					     netfs_sreq_trace_put_clear);
    71		}
    72	}
    73	
    74	static void netfs_free_request(struct work_struct *work)
    75	{
    76		struct netfs_io_request *rreq =
    77			container_of(work, struct netfs_io_request, work);
    78	
    79		trace_netfs_rreq(rreq, netfs_rreq_trace_free);
  > 80		netfs_proc_del_writeback(rreq);
    81		netfs_clear_subrequests(rreq, false);
    82		if (rreq->netfs_ops->free_request)
    83			rreq->netfs_ops->free_request(rreq);
    84		if (rreq->cache_resources.ops)
    85			rreq->cache_resources.ops->end_operation(&rreq->cache_resources);
    86		kfree_rcu(rreq, rcu);
    87		netfs_stat_d(&netfs_n_rh_rreq);
    88	}
    89	

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