drivers/nvme/target/io-cmd-bdev.c:348 nvmet_bdev_discard_range() warn: should '__builtin_bswap32(((range->nlb))) << (ns->blksize_shift - 9)' be a 64 bit type?

drivers/nvme/target/io-cmd-bdev.c:348 nvmet_bdev_discard_range() warn: should '__builtin_bswap32(((range->nlb))) << (ns->blksize_shift - 9)' be a 64 bit type?

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   62fb9874f5da54fdb243003b386128037319b219
commit: d991bb1c8da842a2a0b9dc83b1005e655783f861 include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
date:   8 weeks ago
:::::: branch date: 14 hours ago
:::::: commit date: 8 weeks ago
config: mips-randconfig-m031-20210628 (attached as .config)
compiler: mips64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/nvme/target/io-cmd-bdev.c:348 nvmet_bdev_discard_range() warn: should '__builtin_bswap32(((range->nlb))) << (ns->blksize_shift - 9)' be a 64 bit type?

vim +348 drivers/nvme/target/io-cmd-bdev.c

dedf0be544614b drivers/nvme/target/io-cmd-bdev.c Chaitanya Kulkarni 2018-08-07  339  
3b031d15995f3e drivers/nvme/target/io-cmd-bdev.c Chaitanya Kulkarni 2018-12-12  340  static u16 nvmet_bdev_discard_range(struct nvmet_req *req,
a07b4970f464f1 drivers/nvme/target/io-cmd.c      Christoph Hellwig  2016-06-21  341  		struct nvme_dsm_range *range, struct bio **bio)
a07b4970f464f1 drivers/nvme/target/io-cmd.c      Christoph Hellwig  2016-06-21  342  {
3b031d15995f3e drivers/nvme/target/io-cmd-bdev.c Chaitanya Kulkarni 2018-12-12  343  	struct nvmet_ns *ns = req->ns;
7756f72ccd4359 drivers/nvme/target/io-cmd.c      Israel Rukshin     2018-01-30  344  	int ret;
7756f72ccd4359 drivers/nvme/target/io-cmd.c      Israel Rukshin     2018-01-30  345  
7756f72ccd4359 drivers/nvme/target/io-cmd.c      Israel Rukshin     2018-01-30  346  	ret = __blkdev_issue_discard(ns->bdev,
193fcf371f9e37 drivers/nvme/target/io-cmd-bdev.c Chaitanya Kulkarni 2021-01-11  347  			nvmet_lba_to_sect(ns, range->slba),
a07b4970f464f1 drivers/nvme/target/io-cmd.c      Christoph Hellwig  2016-06-21 @348  			le32_to_cpu(range->nlb) << (ns->blksize_shift - 9),
7756f72ccd4359 drivers/nvme/target/io-cmd.c      Israel Rukshin     2018-01-30  349  			GFP_KERNEL, 0, bio);
005c674f705ee3 drivers/nvme/target/io-cmd-bdev.c Christoph Hellwig  2019-03-13  350  	if (ret && ret != -EOPNOTSUPP) {
3b031d15995f3e drivers/nvme/target/io-cmd-bdev.c Chaitanya Kulkarni 2018-12-12  351  		req->error_slba = le64_to_cpu(range->slba);
cfe03c2ec46200 drivers/nvme/target/io-cmd-bdev.c Christoph Hellwig  2019-03-12  352  		return errno_to_nvme_status(req, ret);
a07b4970f464f1 drivers/nvme/target/io-cmd.c      Christoph Hellwig  2016-06-21  353  	}
005c674f705ee3 drivers/nvme/target/io-cmd-bdev.c Christoph Hellwig  2019-03-13  354  	return NVME_SC_SUCCESS;
005c674f705ee3 drivers/nvme/target/io-cmd-bdev.c Christoph Hellwig  2019-03-13  355  }
a07b4970f464f1 drivers/nvme/target/io-cmd.c      Christoph Hellwig  2016-06-21  356  

:::::: The code at line 348 was first introduced by commit
:::::: a07b4970f464f13640e28e16dad6cfa33647cc99 nvmet: add a generic NVMe target

:::::: TO: Christoph Hellwig <hch@lst.de>
:::::: CC: Jens Axboe <axboe@fb.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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