From: kernel test robot <lkp@intel.com>
To: Joanne Koong <joannelkoong@gmail.com>, axboe@kernel.dk
Cc: oe-kbuild-all@lists.linux.dev, miklos@szeredi.hu,
bschubert@ddn.com, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v1 8/9] fuse: add zero-copy over io-uring
Date: Sat, 28 Mar 2026 14:02:20 +0100 [thread overview]
Message-ID: <202603281328.m7ticaDV-lkp@intel.com> (raw)
In-Reply-To: <20260324224532.3733468-9-joannelkoong@gmail.com>
Hi Joanne,
kernel test robot noticed the following build errors:
[auto build test ERROR on mszeredi-fuse/for-next]
[also build test ERROR on linus/master v7.0-rc5 next-20260327]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Joanne-Koong/fuse-separate-next-request-fetching-from-sending-logic/20260328-142620
base: https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git for-next
patch link: https://lore.kernel.org/r/20260324224532.3733468-9-joannelkoong%40gmail.com
patch subject: [PATCH v1 8/9] fuse: add zero-copy over io-uring
config: x86_64-rhel-9.4 (https://download.01.org/0day-ci/archive/20260328/202603281328.m7ticaDV-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260328/202603281328.m7ticaDV-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603281328.m7ticaDV-lkp@intel.com/
All errors (new ones prefixed by >>):
fs/fuse/dev_uring.c: In function 'fuse_uring_req_end':
fs/fuse/dev_uring.c:132:17: error: implicit declaration of function 'io_buffer_unregister'; did you mean 'io_buffer_unregister_bvec'? [-Wimplicit-function-declaration]
132 | io_buffer_unregister(ent->cmd, ent->id, issue_flags);
| ^~~~~~~~~~~~~~~~~~~~
| io_buffer_unregister_bvec
fs/fuse/dev_uring.c: In function 'fuse_uring_get_buf_ring_headers':
fs/fuse/dev_uring.c:317:24: error: implicit declaration of function 'io_uring_registered_mem_region_get' [-Wimplicit-function-declaration]
317 | mem_reg_addr = io_uring_registered_mem_region_get(cmd, &nr_pages,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/fuse/dev_uring.c:317:22: error: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
317 | mem_reg_addr = io_uring_registered_mem_region_get(cmd, &nr_pages,
| ^
fs/fuse/dev_uring.c: In function 'fuse_uring_buf_ring_setup':
fs/fuse/dev_uring.c:356:15: error: implicit declaration of function 'io_uring_buf_ring_pin'; did you mean 'fuse_uring_buf_ring_setup'? [-Wimplicit-function-declaration]
356 | err = io_uring_buf_ring_pin(cmd, FUSE_URING_BUFRING_GROUP, issue_flags,
| ^~~~~~~~~~~~~~~~~~~~~
| fuse_uring_buf_ring_setup
fs/fuse/dev_uring.c:361:14: error: implicit declaration of function 'io_uring_is_kmbuf_ring' [-Wimplicit-function-declaration]
361 | if (!io_uring_is_kmbuf_ring(cmd, FUSE_URING_BUFRING_GROUP, issue_flags))
| ^~~~~~~~~~~~~~~~~~~~~~
fs/fuse/dev_uring.c:372:9: error: implicit declaration of function 'io_uring_buf_ring_unpin'; did you mean 'fuse_uring_buf_ring_setup'? [-Wimplicit-function-declaration]
372 | io_uring_buf_ring_unpin(cmd, FUSE_URING_BUFRING_GROUP, issue_flags);
| ^~~~~~~~~~~~~~~~~~~~~~~
| fuse_uring_buf_ring_setup
fs/fuse/dev_uring.c: In function 'fuse_uring_set_up_zero_copy':
fs/fuse/dev_uring.c:859:25: error: 'IO_BUF_DEST' undeclared (first use in this function)
859 | ddir |= IO_BUF_DEST;
| ^~~~~~~~~~~
fs/fuse/dev_uring.c:859:25: note: each undeclared identifier is reported only once for each function it appears in
fs/fuse/dev_uring.c:861:25: error: 'IO_BUF_SOURCE' undeclared (first use in this function); did you mean 'ITER_SOURCE'?
861 | ddir |= IO_BUF_SOURCE;
| ^~~~~~~~~~~~~
| ITER_SOURCE
fs/fuse/dev_uring.c:881:49: error: passing argument 2 of 'io_buffer_register_bvec' from incompatible pointer type [-Wincompatible-pointer-types]
881 | err = io_buffer_register_bvec(ent->cmd, bvs, ap->num_folios,
| ^~~
| |
| struct bio_vec *
In file included from fs/fuse/dev_uring.c:14:
include/linux/io_uring/cmd.h:185:71: note: expected 'struct request *' but argument is of type 'struct bio_vec *'
185 | int io_buffer_register_bvec(struct io_uring_cmd *cmd, struct request *rq,
| ~~~~~~~~~~~~~~~~^~
fs/fuse/dev_uring.c:881:56: error: passing argument 3 of 'io_buffer_register_bvec' makes pointer from integer without a cast [-Wint-conversion]
881 | err = io_buffer_register_bvec(ent->cmd, bvs, ap->num_folios,
| ~~^~~~~~~~~~~~
| |
| unsigned int
include/linux/io_uring/cmd.h:186:36: note: expected 'void (*)(void *)' but argument is of type 'unsigned int'
186 | void (*release)(void *), unsigned int index,
| ~~~~~~~^~~~~~~~~~~~~~~~
fs/fuse/dev_uring.c:882:39: error: passing argument 4 of 'io_buffer_register_bvec' makes integer from pointer without a cast [-Wint-conversion]
882 | fuse_zero_copy_release, zc_bvs,
| ^~~~~~~~~~~~~~~~~~~~~~
| |
| void (*)(void *)
include/linux/io_uring/cmd.h:186:67: note: expected 'unsigned int' but argument is of type 'void (*)(void *)'
186 | void (*release)(void *), unsigned int index,
| ~~~~~~~~~~~~~^~~~~
fs/fuse/dev_uring.c:882:63: error: passing argument 5 of 'io_buffer_register_bvec' makes integer from pointer without a cast [-Wint-conversion]
882 | fuse_zero_copy_release, zc_bvs,
| ^~~~~~
| |
| struct fuse_zero_copy_bvs *
include/linux/io_uring/cmd.h:187:42: note: expected 'unsigned int' but argument is of type 'struct fuse_zero_copy_bvs *'
187 | unsigned int issue_flags);
| ~~~~~~~~~~~~~^~~~~~~~~~~
>> fs/fuse/dev_uring.c:881:15: error: too many arguments to function 'io_buffer_register_bvec'
881 | err = io_buffer_register_bvec(ent->cmd, bvs, ap->num_folios,
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/io_uring/cmd.h:185:5: note: declared here
185 | int io_buffer_register_bvec(struct io_uring_cmd *cmd, struct request *rq,
| ^~~~~~~~~~~~~~~~~~~~~~~
fs/fuse/dev_uring.c: In function 'fuse_uring_select_buffer':
fs/fuse/dev_uring.c:1013:15: error: implicit declaration of function 'io_ring_buffer_select'; did you mean 'io_uring_cmd_buffer_select'? [-Wimplicit-function-declaration]
1013 | sel = io_ring_buffer_select(cmd_to_io_kiocb(ent->cmd), &len,
| ^~~~~~~~~~~~~~~~~~~~~
| io_uring_cmd_buffer_select
fs/fuse/dev_uring.c:1013:15: error: incompatible types when assigning to type 'struct io_br_sel' from type 'int'
fs/fuse/dev_uring.c:1017:18: error: 'struct io_br_sel' has no member named 'kaddr'; did you mean 'addr'?
1017 | if (!sel.kaddr)
| ^~~~~
| addr
fs/fuse/dev_uring.c:1020:42: error: 'struct io_br_sel' has no member named 'kaddr'; did you mean 'addr'?
1020 | ent->payload_kvec.iov_base = sel.kaddr;
| ^~~~~
| addr
fs/fuse/dev_uring.c:1022:27: error: 'struct io_br_sel' has no member named 'buf_id'; did you mean 'buf_list'?
1022 | ent->buf_id = sel.buf_id;
| ^~~~~~
| buf_list
In file included from arch/x86/include/asm/bug.h:193,
from arch/x86/include/asm/alternative.h:9,
from arch/x86/include/asm/segment.h:6,
from arch/x86/include/asm/ptrace.h:5,
from arch/x86/include/asm/math_emu.h:5,
from arch/x86/include/asm/processor.h:13,
from arch/x86/include/asm/timex.h:5,
from include/linux/timex.h:67,
from include/linux/time32.h:13,
from include/linux/time.h:60,
from include/linux/stat.h:19,
from include/linux/fs_dirent.h:5,
from include/linux/fs/super_types.h:5,
from include/linux/fs/super.h:5,
from include/linux/fs.h:5,
from fs/fuse/fuse_i.h:17,
from fs/fuse/dev_uring.c:7:
fs/fuse/dev_uring.c: In function 'fuse_uring_recycle_buffer':
fs/fuse/dev_uring.c:1038:22: error: implicit declaration of function 'io_uring_kmbuf_recycle' [-Wimplicit-function-declaration]
1038 | WARN_ON_ONCE(io_uring_kmbuf_recycle(ent->cmd, FUSE_URING_BUFRING_GROUP,
| ^~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/bug.h:120:32: note: in definition of macro 'WARN_ON_ONCE'
120 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
vim +/io_buffer_register_bvec +881 fs/fuse/dev_uring.c
847
848 static int fuse_uring_set_up_zero_copy(struct fuse_ring_ent *ent,
849 struct fuse_req *req,
850 unsigned issue_flags)
851 {
852 struct fuse_args_pages *ap;
853 int err, i, ddir = 0;
854 struct fuse_zero_copy_bvs *zc_bvs;
855 struct bio_vec *bvs;
856
857 /* out_pages indicates a read, in_pages indicates a write */
858 if (req->args->out_pages)
859 ddir |= IO_BUF_DEST;
860 if (req->args->in_pages)
861 ddir |= IO_BUF_SOURCE;
862
863 WARN_ON_ONCE(!ddir);
864
865 ap = container_of(req->args, typeof(*ap), args);
866
867 zc_bvs = kmalloc(struct_size(zc_bvs, bvs, ap->num_folios),
868 GFP_KERNEL_ACCOUNT);
869 if (!zc_bvs)
870 return -ENOMEM;
871
872 zc_bvs->nr_bvs = ap->num_folios;
873 bvs = zc_bvs->bvs;
874 for (i = 0; i < ap->num_folios; i++) {
875 bvs[i].bv_page = folio_page(ap->folios[i], 0);
876 bvs[i].bv_offset = ap->descs[i].offset;
877 bvs[i].bv_len = ap->descs[i].length;
878 folio_get(page_folio(bvs[i].bv_page));
879 }
880
> 881 err = io_buffer_register_bvec(ent->cmd, bvs, ap->num_folios,
> 882 fuse_zero_copy_release, zc_bvs,
883 ddir, ent->id,
884 issue_flags);
885 if (err) {
886 fuse_zero_copy_release(zc_bvs);
887 return err;
888 }
889
890 ent->zero_copied = true;
891
892 return 0;
893 }
894
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2026-03-28 13:03 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-24 22:45 [PATCH v1 0/9] fuse: add io-uring buffer rings and zero-copy Joanne Koong
2026-03-24 22:45 ` [PATCH v1 1/9] fuse: separate next request fetching from sending logic Joanne Koong
2026-03-24 22:45 ` [PATCH v1 2/9] fuse: refactor io-uring header copying to ring Joanne Koong
2026-03-24 22:45 ` [PATCH v1 3/9] fuse: refactor io-uring header copying from ring Joanne Koong
2026-03-24 22:45 ` [PATCH v1 4/9] fuse: use enum types for header copying Joanne Koong
2026-03-24 22:45 ` [PATCH v1 5/9] fuse: refactor setting up copy state for payload copying Joanne Koong
2026-03-24 22:45 ` [PATCH v1 6/9] fuse: support buffer copying for kernel addresses Joanne Koong
2026-03-24 22:45 ` [PATCH v1 7/9] fuse: add io-uring kernel-managed buffer ring Joanne Koong
2026-03-28 12:21 ` kernel test robot
2026-03-28 12:54 ` kernel test robot
2026-03-28 13:27 ` kernel test robot
2026-03-30 21:28 ` Bernd Schubert
2026-03-30 23:19 ` Joanne Koong
2026-03-31 21:30 ` Bernd Schubert
2026-03-24 22:45 ` [PATCH v1 8/9] fuse: add zero-copy over io-uring Joanne Koong
2026-03-28 13:02 ` kernel test robot [this message]
2026-03-28 13:53 ` kernel test robot
2026-03-30 15:43 ` Joanne Koong
2026-03-31 3:35 ` Philip Li
2026-03-24 22:45 ` [PATCH v1 9/9] docs: fuse: add io-uring bufring and zero-copy documentation Joanne Koong
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