706 |                 printk(fmt, ##__VA_ARGS__);                             \
         |                        ~~~    ^~~~~~~~~~~
   ./include/linux/printk.h:512:60: note: expanded from macro 'printk'
     512 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
         |                                                     ~~~    ^~~~~~~~~~~
   ./include/linux/printk.h:484:19: note: expanded from macro 'printk_index_wrap'
     484 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                         ~~~~    ^~~~~~~~~~~
   2 warnings generated.


vim +704 fs/fuse/dev_uring.c

   670	
   671	static __always_inline int copy_header_to_ring(struct fuse_ring_ent *ent,
   672						       enum fuse_uring_header_type type,
   673						       const void *header,
   674						       size_t header_size)
   675	{
   676		bool use_bufring = ent->queue->use_bufring;
   677		int err = 0;
   678	
   679		if (use_bufring) {
   680			struct iov_iter iter;
   681	
   682			err =  get_kernel_ring_header(ent, type, &iter);
   683			if (err)
   684				goto done;
   685	
   686			if (copy_to_iter(header, header_size, &iter) != header_size)
   687				err = -EFAULT;
   688		} else {
   689			void __user *ring = get_user_ring_header(ent, type);
   690	
   691			if (!ring) {
   692				err = -EINVAL;
   693				goto done;
   694			}
   695	
   696			if (copy_to_user(ring, header, header_size))
   697				err = -EFAULT;
   698		}
   699	
   700	done:
   701		if (err)
   702			pr_info_ratelimited("Copying header to ring failed: "
   703					    "header_type=%u, header_size=%lu, "
 > 704					    "use_bufring=%d\n", type, header_size,
   705					    use_bufring);
   706	
   707		return err;
   708	}
   709	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki[PATCH v2 19/25] fuse: add io-uring kernel-managed buffer ringkernel test robot <lkp@intel.com> undefinedJoanne Koong <joannelkoong@gmail.com>, miklos@szeredi.hu, axboe@kernel.dk undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined�