[asahilinux:nvme/dev 18/18] drivers/nvme/host/apple.c:462:14: error: implicit declaration of function 'DO_ONCE'
From: kernel test robot
Date: Thu Dec 09 2021 - 21:02:56 EST
tree: https://github.com/AsahiLinux/linux nvme/dev
head: d25eee8aced31cf92944992bec41022e6f837daf
commit: d25eee8aced31cf92944992bec41022e6f837daf [18/18] HACK/DO-NOT-MERGE: nvme-apple: add initial Apple SoC NVMe driver
config: ia64-allmodconfig (https://download.01.org/0day-ci/archive/20211210/202112101027.eInODw2M-lkp@xxxxxxxxx/config)
compiler: ia64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/AsahiLinux/linux/commit/d25eee8aced31cf92944992bec41022e6f837daf
git remote add asahilinux https://github.com/AsahiLinux/linux
git fetch --no-tags asahilinux nvme/dev
git checkout d25eee8aced31cf92944992bec41022e6f837daf
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/nvme/host/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
In file included from arch/ia64/include/asm/bug.h:17,
from include/linux/bug.h:5,
from include/linux/thread_info.h:13,
from include/asm-generic/preempt.h:5,
from ./arch/ia64/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/rcupdate.h:27,
from include/linux/rculist.h:11,
from include/linux/pid.h:5,
from include/linux/sched.h:14,
from include/linux/ratelimit.h:6,
from include/linux/dev_printk.h:16,
from include/linux/device.h:15,
from include/linux/async.h:14,
from drivers/nvme/host/apple.c:12:
drivers/nvme/host/apple.c: In function 'apple_nvme_setup_prps':
>> drivers/nvme/host/apple.c:462:14: error: implicit declaration of function 'DO_ONCE' [-Werror=implicit-function-declaration]
462 | WARN(DO_ONCE(apple_nvme_print_sgl, iod->sg, iod->nents),
| ^~~~~~~
include/asm-generic/bug.h:130:32: note: in definition of macro 'WARN'
130 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
cc1: some warnings being treated as errors
vim +/DO_ONCE +462 drivers/nvme/host/apple.c
374
375 static blk_status_t apple_nvme_setup_prps(struct apple_nvme *anv,
376 struct request *req,
377 struct nvme_rw_command *cmnd)
378 {
379 struct apple_nvme_iod *iod = blk_mq_rq_to_pdu(req);
380 struct dma_pool *pool;
381 int length = blk_rq_payload_bytes(req);
382 struct scatterlist *sg = iod->sg;
383 int dma_len = sg_dma_len(sg);
384 u64 dma_addr = sg_dma_address(sg);
385 int offset = dma_addr & (NVME_CTRL_PAGE_SIZE - 1);
386 __le64 *prp_list;
387 void **list = apple_nvme_iod_list(req);
388 dma_addr_t prp_dma;
389 int nprps, i;
390
391 length -= (NVME_CTRL_PAGE_SIZE - offset);
392 if (length <= 0) {
393 iod->first_dma = 0;
394 goto done;
395 }
396
397 dma_len -= (NVME_CTRL_PAGE_SIZE - offset);
398 if (dma_len) {
399 dma_addr += (NVME_CTRL_PAGE_SIZE - offset);
400 } else {
401 sg = sg_next(sg);
402 dma_addr = sg_dma_address(sg);
403 dma_len = sg_dma_len(sg);
404 }
405
406 if (length <= NVME_CTRL_PAGE_SIZE) {
407 iod->first_dma = dma_addr;
408 goto done;
409 }
410
411 nprps = DIV_ROUND_UP(length, NVME_CTRL_PAGE_SIZE);
412 if (nprps <= (256 / 8)) {
413 pool = anv->prp_small_pool;
414 iod->npages = 0;
415 } else {
416 pool = anv->prp_page_pool;
417 iod->npages = 1;
418 }
419
420 prp_list = dma_pool_alloc(pool, GFP_ATOMIC, &prp_dma);
421 if (!prp_list) {
422 iod->first_dma = dma_addr;
423 iod->npages = -1;
424 return BLK_STS_RESOURCE;
425 }
426 list[0] = prp_list;
427 iod->first_dma = prp_dma;
428 i = 0;
429 for (;;) {
430 if (i == NVME_CTRL_PAGE_SIZE >> 3) {
431 __le64 *old_prp_list = prp_list;
432 prp_list = dma_pool_alloc(pool, GFP_ATOMIC, &prp_dma);
433 if (!prp_list)
434 goto free_prps;
435 list[iod->npages++] = prp_list;
436 prp_list[0] = old_prp_list[i - 1];
437 old_prp_list[i - 1] = cpu_to_le64(prp_dma);
438 i = 1;
439 }
440 prp_list[i++] = cpu_to_le64(dma_addr);
441 dma_len -= NVME_CTRL_PAGE_SIZE;
442 dma_addr += NVME_CTRL_PAGE_SIZE;
443 length -= NVME_CTRL_PAGE_SIZE;
444 if (length <= 0)
445 break;
446 if (dma_len > 0)
447 continue;
448 if (unlikely(dma_len < 0))
449 goto bad_sgl;
450 sg = sg_next(sg);
451 dma_addr = sg_dma_address(sg);
452 dma_len = sg_dma_len(sg);
453 }
454 done:
455 cmnd->dptr.prp1 = cpu_to_le64(sg_dma_address(iod->sg));
456 cmnd->dptr.prp2 = cpu_to_le64(iod->first_dma);
457 return BLK_STS_OK;
458 free_prps:
459 apple_nvme_free_prps(anv, req);
460 return BLK_STS_RESOURCE;
461 bad_sgl:
> 462 WARN(DO_ONCE(apple_nvme_print_sgl, iod->sg, iod->nents),
463 "Invalid SGL for payload:%d nents:%d\n", blk_rq_payload_bytes(req),
464 iod->nents);
465 return BLK_STS_IOERR;
466 }
467
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx