io_uring/rsrc.c:457:7: error: unexpected token, expected comma
From: kernel test robot
Date: Thu Jan 01 2026 - 10:46:51 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b69053dd3ffbc0d2dedbbc86182cdef6f641fe1b
commit: 3615e3f7947a3c1cb15d362da921ac46d771e02c io_uring/rsrc: use get/put_user() for integer copy
date: 8 weeks ago
config: mips-randconfig-r051-20251231 (https://download.01.org/0day-ci/archive/20260101/202601012317.QyR84Xo9-lkp@xxxxxxxxx/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project f43d6834093b19baf79beda8c0337ab020ac5f17)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260101/202601012317.QyR84Xo9-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601012317.QyR84Xo9-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
>> io_uring/rsrc.c:457:7: error: unexpected token, expected comma
457 | if (get_user(fd, &fds[done])) {
| ^
arch/mips/include/asm/uaccess.h:97:33: note: expanded from macro 'get_user'
97 | access_ok(__p, sizeof(*__p)) ? __get_user((x), __p) : \
| ^
arch/mips/include/asm/uaccess.h:183:23: note: expanded from macro '__get_user'
183 | __get_data_asm((x), user_lw, __gu_ptr); \
| ^
<inline asm>:3:10: note: instantiated into assembly here
3 | .set eva
| ^
io_uring/rsrc.c:457:7: error: instruction requires a CPU feature not currently enabled
457 | if (get_user(fd, &fds[done])) {
| ^
arch/mips/include/asm/uaccess.h:97:33: note: expanded from macro 'get_user'
97 | access_ok(__p, sizeof(*__p)) ? __get_user((x), __p) : \
| ^
arch/mips/include/asm/uaccess.h:183:23: note: expanded from macro '__get_user'
183 | __get_data_asm((x), user_lw, __gu_ptr); \
| ^
<inline asm>:4:2: note: instantiated into assembly here
4 | lwe $4, 0($21)
| ^
io_uring/rsrc.c:471:7: error: unexpected token, expected comma
471 | if (put_user(ret, &fds[done])) {
| ^
arch/mips/include/asm/uaccess.h:71:33: note: expanded from macro 'put_user'
71 | access_ok(__p, sizeof(*__p)) ? __put_user((x), __p) : -EFAULT; \
| ^
arch/mips/include/asm/uaccess.h:136:18: note: expanded from macro '__put_user'
136 | __put_data_asm(user_sw, __pu_ptr); \
| ^
<inline asm>:3:10: note: instantiated into assembly here
3 | .set eva
| ^
io_uring/rsrc.c:471:7: error: instruction requires a CPU feature not currently enabled
471 | if (put_user(ret, &fds[done])) {
| ^
arch/mips/include/asm/uaccess.h:71:33: note: expanded from macro 'put_user'
71 | access_ok(__p, sizeof(*__p)) ? __put_user((x), __p) : -EFAULT; \
| ^
arch/mips/include/asm/uaccess.h:136:18: note: expanded from macro '__put_user'
136 | __put_data_asm(user_sw, __pu_ptr); \
| ^
<inline asm>:4:2: note: instantiated into assembly here
4 | swe $17, 0($21)
| ^
4 errors generated.
vim +457 io_uring/rsrc.c
443
444 static int io_files_update_with_index_alloc(struct io_kiocb *req,
445 unsigned int issue_flags)
446 {
447 struct io_rsrc_update *up = io_kiocb_to_cmd(req, struct io_rsrc_update);
448 __s32 __user *fds = u64_to_user_ptr(up->arg);
449 unsigned int done;
450 struct file *file;
451 int ret, fd;
452
453 if (!req->ctx->file_table.data.nr)
454 return -ENXIO;
455
456 for (done = 0; done < up->nr_args; done++) {
> 457 if (get_user(fd, &fds[done])) {
458 ret = -EFAULT;
459 break;
460 }
461
462 file = fget(fd);
463 if (!file) {
464 ret = -EBADF;
465 break;
466 }
467 ret = io_fixed_fd_install(req, issue_flags, file,
468 IORING_FILE_INDEX_ALLOC);
469 if (ret < 0)
470 break;
471 if (put_user(ret, &fds[done])) {
472 __io_close_fixed(req->ctx, issue_flags, ret);
473 ret = -EFAULT;
474 break;
475 }
476 }
477
478 if (done)
479 return done;
480 return ret;
481 }
482
--
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