[block:wq-no-manager 18/18] fs/io-wq.c:290:23: sparse: sparse: incorrect type in argument 1 (different base types)

[block:wq-no-manager 18/18] fs/io-wq.c:290:23: sparse: sparse: incorrect type in argument 1 (different base types)

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git wq-no-manager
head:   a91ab2dfc03aad93bc21a6aec7cf7a52236ca1d7
commit: a91ab2dfc03aad93bc21a6aec7cf7a52236ca1d7 [18/18] io-wq: eliminate the need for a manager thread
config: i386-randconfig-s001-20210309 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-262-g5e674421-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?id=a91ab2dfc03aad93bc21a6aec7cf7a52236ca1d7
        git remote add block https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git
        git fetch --no-tags block wq-no-manager
        git checkout a91ab2dfc03aad93bc21a6aec7cf7a52236ca1d7
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

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


"sparse warnings: (new ones prefixed by >>)"
>> fs/io-wq.c:290:23: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] size @@     got restricted gfp_t @@
   fs/io-wq.c:290:23: sparse:     expected unsigned int [usertype] size
   fs/io-wq.c:290:23: sparse:     got restricted gfp_t
>> fs/io-wq.c:290:35: sparse: sparse: incorrect type in argument 2 (different base types) @@     expected restricted gfp_t [usertype] flags @@     got unsigned int @@
   fs/io-wq.c:290:35: sparse:     expected restricted gfp_t [usertype] flags
   fs/io-wq.c:290:35: sparse:     got unsigned int

vim +290 fs/io-wq.c

   284	
   285	static void io_queue_worker_create(struct io_wqe *wqe, struct io_wqe_acct *acct)
   286	{
   287		struct create_worker_data *cwd;
   288		int ret;
   289	
 > 290		cwd = kmalloc(GFP_ATOMIC, sizeof(*cwd));
   291		if (unlikely(!cwd))
   292			return;
   293	
   294		atomic_inc(&acct->nr_running);
   295		atomic_inc(&wqe->wq->worker_refs);
   296		init_task_work(&cwd->work, create_worker_cb);
   297		cwd->wqe = wqe;
   298		cwd->index = acct->index;
   299		ret = task_work_add(wqe->wq->task, &cwd->work, TWA_SIGNAL);
   300		if (ret) {
   301			if (atomic_dec_and_test(&wqe->wq->worker_refs))
   302				complete(&wqe->wq->worker_done);
   303			kfree(cwd);
   304		}
   305	}
   306	

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

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