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Subject[ammarfaizi2-block:axboe/linux-block/for-5.20/io_uring-buffered-writes 118/137] io_uring/io_uring.c:1038: warning: expecting prototype for io_llist_xchg(). Prototype was for io_llist_cmpxchg() instead
tree:   https://github.com/ammarfaizi2/linux-block axboe/linux-block/for-5.20/io_uring-buffered-writes
head: e9cfc64a27f7a581b8c5d14da4efccfeae9c63bd
commit: c0808632a83a7c607a987154372e705353acf4f2 [118/137] io_uring: introduce llist helpers
config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20220623/202206230848.OkDjWWbp-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://github.com/ammarfaizi2/linux-block/commit/c0808632a83a7c607a987154372e705353acf4f2
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block axboe/linux-block/for-5.20/io_uring-buffered-writes
git checkout c0808632a83a7c607a987154372e705353acf4f2
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash

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

All warnings (new ones prefixed by >>):

io_uring/io_uring.c:1022: warning: Function parameter or member 'node' not described in 'io_llist_xchg'
io_uring/io_uring.c:1022: warning: Excess function parameter 'new' description in 'io_llist_xchg'
>> io_uring/io_uring.c:1038: warning: expecting prototype for io_llist_xchg(). Prototype was for io_llist_cmpxchg() instead


vim +1038 io_uring/io_uring.c

1025
1026 /**
1027 * io_llist_xchg - possibly swap all entries in a lock-less list
1028 * @head: the head of lock-less list to delete all entries
1029 * @old: expected old value of the first entry of the list
1030 * @new: new entry as the head of the list
1031 *
1032 * perform a cmpxchg on the first entry of the list.
1033 */
1034
1035 static inline struct llist_node *io_llist_cmpxchg(struct llist_head *head,
1036 struct llist_node *old,
1037 struct llist_node *new)
> 1038 {
1039 return cmpxchg(&head->first, old, new);
1040 }
1041

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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