Date:   Fri, 11 Mar 2022 18:27:59 +0800
From:   kernel test robot <lkp@...el.com>
To:     David Howells <dhowells@...hat.com>
Cc:     kbuild-all@...ts.01.org,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org
Subject: [ammarfaizi2-block:dhowells/linux-fs/netfs-lib 42/54]
 fs/netfs/objects.c:49:9: error: implicit declaration of function
 'netfs_proc_add_writeback'; did you mean 'netfs_proc_add_rreq'?

tree:   https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/netfs-lib
head:   4a98a2518c638d046f6f9c41060f78c349c4c6de
commit: 6903280c13bfacd00ddd06fda523ecce6ee8db34 [42/54] netfs: Add a procfile to list in-progress requests
config: openrisc-buildonly-randconfig-r004-20220310 (https://download.01.org/0day-ci/archive/20220311/202203111832.1JtRzMeS-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 11.2.0
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
        # https://github.com/ammarfaizi2/linux-block/commit/6903280c13bfacd00ddd06fda523ecce6ee8db34
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/netfs-lib
        git checkout 6903280c13bfacd00ddd06fda523ecce6ee8db34
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=openrisc SHELL=/bin/bash fs/netfs/

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 >>):

   fs/netfs/objects.c: In function 'netfs_alloc_request':
>> fs/netfs/objects.c:49:9: error: implicit declaration of function 'netfs_proc_add_writeback'; did you mean 'netfs_proc_add_rreq'? [-Werror=implicit-function-declaration]
      49 |         netfs_proc_add_writeback(rreq);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~
         |         netfs_proc_add_rreq
   fs/netfs/objects.c: In function 'netfs_free_request':
>> fs/netfs/objects.c:81:9: error: implicit declaration of function 'netfs_proc_del_writeback'; did you mean 'netfs_proc_del_rreq'? [-Werror=implicit-function-declaration]
      81 |         netfs_proc_del_writeback(rreq);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~
         |         netfs_proc_del_rreq
   cc1: some warnings being treated as errors


vim +49 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		INIT_WORK(&rreq->work, NULL);
    39		refcount_set(&rreq->ref, 1);
    40		__set_bit(NETFS_RREQ_IN_PROGRESS, &rreq->flags);
    41		if (rreq->netfs_ops->init_request) {
    42			ret = rreq->netfs_ops->init_request(rreq, file);
    43			if (ret < 0) {
    44				kfree(rreq);
    45				return ERR_PTR(ret);
    46			}
    47		}
    48	
  > 49		netfs_proc_add_writeback(rreq);
    50		netfs_stat(&netfs_n_rh_rreq);
    51		return rreq;
    52	}
    53	
    54	void netfs_get_request(struct netfs_io_request *rreq, enum netfs_rreq_ref_trace what)
    55	{
    56		int r;
    57	
    58		__refcount_inc(&rreq->ref, &r);
    59		trace_netfs_rreq_ref(rreq->debug_id, r + 1, what);
    60	}
    61	
    62	void netfs_clear_subrequests(struct netfs_io_request *rreq, bool was_async)
    63	{
    64		struct netfs_io_subrequest *subreq;
    65	
    66		while (!list_empty(&rreq->subrequests)) {
    67			subreq = list_first_entry(&rreq->subrequests,
    68						  struct netfs_io_subrequest, rreq_link);
    69			list_del(&subreq->rreq_link);
    70			netfs_put_subrequest(subreq, was_async,
    71					     netfs_sreq_trace_put_clear);
    72		}
    73	}
    74	
    75	static void netfs_free_request(struct work_struct *work)
    76	{
    77		struct netfs_io_request *rreq =
    78			container_of(work, struct netfs_io_request, work);
    79	
    80		trace_netfs_rreq(rreq, netfs_rreq_trace_free);
  > 81		netfs_proc_del_writeback(rreq);
    82		netfs_clear_subrequests(rreq, false);
    83		if (rreq->netfs_ops->free_request)
    84			rreq->netfs_ops->free_request(rreq);
    85		if (rreq->cache_resources.ops)
    86			rreq->cache_resources.ops->end_operation(&rreq->cache_resources);
    87		kfree_rcu(rreq, rcu);
    88		netfs_stat_d(&netfs_n_rh_rreq);
    89	}
    90	

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