drivers/dma/ste_dma40.c:3663:40: sparse: sparse: incorrect type in argument 1 (different address spaces)

From: kernel test robot
Date: Sun Aug 14 2022 - 10:56:43 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: aea23e7c464bfdec04b52cf61edb62030e9e0d0a
commit: d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee ARM: mm: kill unused runtime hook arch_iounmap()
date: 7 weeks ago
config: arm-randconfig-s031-20220810 (https://download.01.org/0day-ci/archive/20220814/202208142208.AUxRuZhj-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash

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

sparse warnings: (new ones prefixed by >>)
drivers/dma/ste_dma40.c:1389:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned int * @@
drivers/dma/ste_dma40.c:1389:28: sparse: expected void const volatile [noderef] __iomem *addr
drivers/dma/ste_dma40.c:1389:28: sparse: got unsigned int *
drivers/dma/ste_dma40.c:1405:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned int * @@
drivers/dma/ste_dma40.c:1405:27: sparse: expected void const volatile [noderef] __iomem *addr
drivers/dma/ste_dma40.c:1405:27: sparse: got unsigned int *
drivers/dma/ste_dma40.c:3564:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *lcpa_base @@ got void [noderef] __iomem * @@
drivers/dma/ste_dma40.c:3564:25: sparse: expected void *lcpa_base
drivers/dma/ste_dma40.c:3564:25: sparse: got void [noderef] __iomem *
drivers/dma/ste_dma40.c:3580:38: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *base @@ got void [noderef] __iomem * @@
drivers/dma/ste_dma40.c:3580:38: sparse: expected void *base
drivers/dma/ste_dma40.c:3580:38: sparse: got void [noderef] __iomem *
>> drivers/dma/ste_dma40.c:3663:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *base @@
drivers/dma/ste_dma40.c:3663:40: sparse: expected void volatile [noderef] __iomem *io_addr
drivers/dma/ste_dma40.c:3663:40: sparse: got void *base
>> drivers/dma/ste_dma40.c:3679:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *lcpa_base @@
drivers/dma/ste_dma40.c:3679:29: sparse: expected void volatile [noderef] __iomem *io_addr
drivers/dma/ste_dma40.c:3679:29: sparse: got void *lcpa_base

vim +3663 drivers/dma/ste_dma40.c

1814a1703ce2d6 Lee Jones 2013-05-03 3504
8d318a50b3d72e Linus Walleij 2010-03-30 3505 static int __init d40_probe(struct platform_device *pdev)
8d318a50b3d72e Linus Walleij 2010-03-30 3506 {
d4adcc0160404c Jingoo Han 2013-07-30 3507 struct stedma40_platform_data *plat_data = dev_get_platdata(&pdev->dev);
1814a1703ce2d6 Lee Jones 2013-05-03 3508 struct device_node *np = pdev->dev.of_node;
8d318a50b3d72e Linus Walleij 2010-03-30 3509 int ret = -ENOENT;
a9bae06dd05fc8 Markus Elfring 2015-11-16 3510 struct d40_base *base;
aeb8974ac70f07 Markus Elfring 2015-11-16 3511 struct resource *res;
8d318a50b3d72e Linus Walleij 2010-03-30 3512 int num_reserved_chans;
8d318a50b3d72e Linus Walleij 2010-03-30 3513 u32 val;
8d318a50b3d72e Linus Walleij 2010-03-30 3514
1814a1703ce2d6 Lee Jones 2013-05-03 3515 if (!plat_data) {
1814a1703ce2d6 Lee Jones 2013-05-03 3516 if (np) {
1814a1703ce2d6 Lee Jones 2013-05-03 3517 if (d40_of_probe(pdev, np)) {
1814a1703ce2d6 Lee Jones 2013-05-03 3518 ret = -ENOMEM;
a9bae06dd05fc8 Markus Elfring 2015-11-16 3519 goto report_failure;
1814a1703ce2d6 Lee Jones 2013-05-03 3520 }
1814a1703ce2d6 Lee Jones 2013-05-03 3521 } else {
1814a1703ce2d6 Lee Jones 2013-05-03 3522 d40_err(&pdev->dev, "No pdata or Device Tree provided\n");
a9bae06dd05fc8 Markus Elfring 2015-11-16 3523 goto report_failure;
1814a1703ce2d6 Lee Jones 2013-05-03 3524 }
1814a1703ce2d6 Lee Jones 2013-05-03 3525 }
8d318a50b3d72e Linus Walleij 2010-03-30 3526
1814a1703ce2d6 Lee Jones 2013-05-03 3527 base = d40_hw_detect_init(pdev);
8d318a50b3d72e Linus Walleij 2010-03-30 3528 if (!base)
a9bae06dd05fc8 Markus Elfring 2015-11-16 3529 goto report_failure;
8d318a50b3d72e Linus Walleij 2010-03-30 3530
8d318a50b3d72e Linus Walleij 2010-03-30 3531 num_reserved_chans = d40_phy_res_init(base);
8d318a50b3d72e Linus Walleij 2010-03-30 3532
8d318a50b3d72e Linus Walleij 2010-03-30 3533 platform_set_drvdata(pdev, base);
8d318a50b3d72e Linus Walleij 2010-03-30 3534
8d318a50b3d72e Linus Walleij 2010-03-30 3535 spin_lock_init(&base->interrupt_lock);
8d318a50b3d72e Linus Walleij 2010-03-30 3536 spin_lock_init(&base->execmd_lock);
8d318a50b3d72e Linus Walleij 2010-03-30 3537
8d318a50b3d72e Linus Walleij 2010-03-30 3538 /* Get IO for logical channel parameter address */
8d318a50b3d72e Linus Walleij 2010-03-30 3539 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lcpa");
8d318a50b3d72e Linus Walleij 2010-03-30 3540 if (!res) {
8d318a50b3d72e Linus Walleij 2010-03-30 3541 ret = -ENOENT;
6db5a8ba11bf23 Rabin Vincent 2011-01-25 3542 d40_err(&pdev->dev, "No \"lcpa\" memory resource\n");
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3543 goto destroy_cache;
8d318a50b3d72e Linus Walleij 2010-03-30 3544 }
8d318a50b3d72e Linus Walleij 2010-03-30 3545 base->lcpa_size = resource_size(res);
8d318a50b3d72e Linus Walleij 2010-03-30 3546 base->phy_lcpa = res->start;
8d318a50b3d72e Linus Walleij 2010-03-30 3547
8d318a50b3d72e Linus Walleij 2010-03-30 3548 if (request_mem_region(res->start, resource_size(res),
8d318a50b3d72e Linus Walleij 2010-03-30 3549 D40_NAME " I/O lcpa") == NULL) {
8d318a50b3d72e Linus Walleij 2010-03-30 3550 ret = -EBUSY;
3a919d5b43e459 Fabio Estevam 2013-08-21 3551 d40_err(&pdev->dev, "Failed to request LCPA region %pR\n", res);
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3552 goto destroy_cache;
8d318a50b3d72e Linus Walleij 2010-03-30 3553 }
8d318a50b3d72e Linus Walleij 2010-03-30 3554
8d318a50b3d72e Linus Walleij 2010-03-30 3555 /* We make use of ESRAM memory for this. */
8d318a50b3d72e Linus Walleij 2010-03-30 3556 val = readl(base->virtbase + D40_DREG_LCPA);
8d318a50b3d72e Linus Walleij 2010-03-30 3557 if (res->start != val && val != 0) {
8d318a50b3d72e Linus Walleij 2010-03-30 3558 dev_warn(&pdev->dev,
3a919d5b43e459 Fabio Estevam 2013-08-21 3559 "[%s] Mismatch LCPA dma 0x%x, def %pa\n",
3a919d5b43e459 Fabio Estevam 2013-08-21 3560 __func__, val, &res->start);
8d318a50b3d72e Linus Walleij 2010-03-30 3561 } else
8d318a50b3d72e Linus Walleij 2010-03-30 3562 writel(res->start, base->virtbase + D40_DREG_LCPA);
8d318a50b3d72e Linus Walleij 2010-03-30 3563
8d318a50b3d72e Linus Walleij 2010-03-30 3564 base->lcpa_base = ioremap(res->start, resource_size(res));
8d318a50b3d72e Linus Walleij 2010-03-30 3565 if (!base->lcpa_base) {
8d318a50b3d72e Linus Walleij 2010-03-30 3566 ret = -ENOMEM;
6db5a8ba11bf23 Rabin Vincent 2011-01-25 3567 d40_err(&pdev->dev, "Failed to ioremap LCPA region\n");
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3568 goto destroy_cache;
8d318a50b3d72e Linus Walleij 2010-03-30 3569 }
28c7a19d230228 Narayanan G 2011-11-22 3570 /* If lcla has to be located in ESRAM we don't need to allocate */
28c7a19d230228 Narayanan G 2011-11-22 3571 if (base->plat_data->use_esram_lcla) {
28c7a19d230228 Narayanan G 2011-11-22 3572 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
28c7a19d230228 Narayanan G 2011-11-22 3573 "lcla_esram");
28c7a19d230228 Narayanan G 2011-11-22 3574 if (!res) {
28c7a19d230228 Narayanan G 2011-11-22 3575 ret = -ENOENT;
28c7a19d230228 Narayanan G 2011-11-22 3576 d40_err(&pdev->dev,
28c7a19d230228 Narayanan G 2011-11-22 3577 "No \"lcla_esram\" memory resource\n");
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3578 goto destroy_cache;
28c7a19d230228 Narayanan G 2011-11-22 3579 }
28c7a19d230228 Narayanan G 2011-11-22 3580 base->lcla_pool.base = ioremap(res->start,
28c7a19d230228 Narayanan G 2011-11-22 3581 resource_size(res));
28c7a19d230228 Narayanan G 2011-11-22 3582 if (!base->lcla_pool.base) {
28c7a19d230228 Narayanan G 2011-11-22 3583 ret = -ENOMEM;
28c7a19d230228 Narayanan G 2011-11-22 3584 d40_err(&pdev->dev, "Failed to ioremap LCLA region\n");
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3585 goto destroy_cache;
28c7a19d230228 Narayanan G 2011-11-22 3586 }
28c7a19d230228 Narayanan G 2011-11-22 3587 writel(res->start, base->virtbase + D40_DREG_LCLA);
8d318a50b3d72e Linus Walleij 2010-03-30 3588
28c7a19d230228 Narayanan G 2011-11-22 3589 } else {
508849ade23c11 Linus Walleij 2010-06-20 3590 ret = d40_lcla_allocate(base);
508849ade23c11 Linus Walleij 2010-06-20 3591 if (ret) {
6db5a8ba11bf23 Rabin Vincent 2011-01-25 3592 d40_err(&pdev->dev, "Failed to allocate LCLA area\n");
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3593 goto destroy_cache;
8d318a50b3d72e Linus Walleij 2010-03-30 3594 }
28c7a19d230228 Narayanan G 2011-11-22 3595 }
8d318a50b3d72e Linus Walleij 2010-03-30 3596
8d318a50b3d72e Linus Walleij 2010-03-30 3597 spin_lock_init(&base->lcla_pool.lock);
8d318a50b3d72e Linus Walleij 2010-03-30 3598
8d318a50b3d72e Linus Walleij 2010-03-30 3599 base->irq = platform_get_irq(pdev, 0);
8d318a50b3d72e Linus Walleij 2010-03-30 3600
8d318a50b3d72e Linus Walleij 2010-03-30 3601 ret = request_irq(base->irq, d40_handle_interrupt, 0, D40_NAME, base);
8d318a50b3d72e Linus Walleij 2010-03-30 3602 if (ret) {
6db5a8ba11bf23 Rabin Vincent 2011-01-25 3603 d40_err(&pdev->dev, "No IRQ defined\n");
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3604 goto destroy_cache;
8d318a50b3d72e Linus Walleij 2010-03-30 3605 }
8d318a50b3d72e Linus Walleij 2010-03-30 3606
28c7a19d230228 Narayanan G 2011-11-22 3607 if (base->plat_data->use_esram_lcla) {
28c7a19d230228 Narayanan G 2011-11-22 3608
28c7a19d230228 Narayanan G 2011-11-22 3609 base->lcpa_regulator = regulator_get(base->dev, "lcla_esram");
28c7a19d230228 Narayanan G 2011-11-22 3610 if (IS_ERR(base->lcpa_regulator)) {
28c7a19d230228 Narayanan G 2011-11-22 3611 d40_err(&pdev->dev, "Failed to get lcpa_regulator\n");
8581bbcd30afa9 Wei Yongjun 2013-05-31 3612 ret = PTR_ERR(base->lcpa_regulator);
28c7a19d230228 Narayanan G 2011-11-22 3613 base->lcpa_regulator = NULL;
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3614 goto destroy_cache;
28c7a19d230228 Narayanan G 2011-11-22 3615 }
28c7a19d230228 Narayanan G 2011-11-22 3616
28c7a19d230228 Narayanan G 2011-11-22 3617 ret = regulator_enable(base->lcpa_regulator);
28c7a19d230228 Narayanan G 2011-11-22 3618 if (ret) {
28c7a19d230228 Narayanan G 2011-11-22 3619 d40_err(&pdev->dev,
28c7a19d230228 Narayanan G 2011-11-22 3620 "Failed to enable lcpa_regulator\n");
28c7a19d230228 Narayanan G 2011-11-22 3621 regulator_put(base->lcpa_regulator);
28c7a19d230228 Narayanan G 2011-11-22 3622 base->lcpa_regulator = NULL;
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3623 goto destroy_cache;
28c7a19d230228 Narayanan G 2011-11-22 3624 }
28c7a19d230228 Narayanan G 2011-11-22 3625 }
28c7a19d230228 Narayanan G 2011-11-22 3626
2dafca17c8807b Ulf Hansson 2014-04-23 3627 writel_relaxed(D40_DREG_GCC_ENABLE_ALL, base->virtbase + D40_DREG_GCC);
2dafca17c8807b Ulf Hansson 2014-04-23 3628
2dafca17c8807b Ulf Hansson 2014-04-23 3629 pm_runtime_irq_safe(base->dev);
2dafca17c8807b Ulf Hansson 2014-04-23 3630 pm_runtime_set_autosuspend_delay(base->dev, DMA40_AUTOSUSPEND_DELAY);
2dafca17c8807b Ulf Hansson 2014-04-23 3631 pm_runtime_use_autosuspend(base->dev);
2dafca17c8807b Ulf Hansson 2014-04-23 3632 pm_runtime_mark_last_busy(base->dev);
2dafca17c8807b Ulf Hansson 2014-04-23 3633 pm_runtime_set_active(base->dev);
2dafca17c8807b Ulf Hansson 2014-04-23 3634 pm_runtime_enable(base->dev);
2dafca17c8807b Ulf Hansson 2014-04-23 3635
8581bbcd30afa9 Wei Yongjun 2013-05-31 3636 ret = d40_dmaengine_init(base, num_reserved_chans);
8581bbcd30afa9 Wei Yongjun 2013-05-31 3637 if (ret)
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3638 goto destroy_cache;
8d318a50b3d72e Linus Walleij 2010-03-30 3639
8581bbcd30afa9 Wei Yongjun 2013-05-31 3640 ret = dma_set_max_seg_size(base->dev, STEDMA40_MAX_SEG_SIZE);
8581bbcd30afa9 Wei Yongjun 2013-05-31 3641 if (ret) {
b96710e5b22609 Per Forlin 2011-10-18 3642 d40_err(&pdev->dev, "Failed to set dma max seg size\n");
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3643 goto destroy_cache;
b96710e5b22609 Per Forlin 2011-10-18 3644 }
b96710e5b22609 Per Forlin 2011-10-18 3645
8d318a50b3d72e Linus Walleij 2010-03-30 3646 d40_hw_init(base);
8d318a50b3d72e Linus Walleij 2010-03-30 3647
fa332de5c6b389 Lee Jones 2013-05-03 3648 if (np) {
8581bbcd30afa9 Wei Yongjun 2013-05-31 3649 ret = of_dma_controller_register(np, d40_xlate, NULL);
8581bbcd30afa9 Wei Yongjun 2013-05-31 3650 if (ret)
fa332de5c6b389 Lee Jones 2013-05-03 3651 dev_err(&pdev->dev,
fa332de5c6b389 Lee Jones 2013-05-03 3652 "could not register of_dma_controller\n");
fa332de5c6b389 Lee Jones 2013-05-03 3653 }
fa332de5c6b389 Lee Jones 2013-05-03 3654
8d318a50b3d72e Linus Walleij 2010-03-30 3655 dev_info(base->dev, "initialized\n");
8d318a50b3d72e Linus Walleij 2010-03-30 3656 return 0;
d7b7ecce4bcb15 Markus Elfring 2016-09-17 3657 destroy_cache:
c675b1b424446b Jonas Aaberg 2010-06-20 3658 kmem_cache_destroy(base->desc_slab);
8d318a50b3d72e Linus Walleij 2010-03-30 3659 if (base->virtbase)
8d318a50b3d72e Linus Walleij 2010-03-30 3660 iounmap(base->virtbase);
026cbc424a162e Rabin Vincent 2011-01-25 3661
28c7a19d230228 Narayanan G 2011-11-22 3662 if (base->lcla_pool.base && base->plat_data->use_esram_lcla) {
28c7a19d230228 Narayanan G 2011-11-22 @3663 iounmap(base->lcla_pool.base);
28c7a19d230228 Narayanan G 2011-11-22 3664 base->lcla_pool.base = NULL;
28c7a19d230228 Narayanan G 2011-11-22 3665 }
28c7a19d230228 Narayanan G 2011-11-22 3666
026cbc424a162e Rabin Vincent 2011-01-25 3667 if (base->lcla_pool.dma_addr)
026cbc424a162e Rabin Vincent 2011-01-25 3668 dma_unmap_single(base->dev, base->lcla_pool.dma_addr,
026cbc424a162e Rabin Vincent 2011-01-25 3669 SZ_1K * base->num_phy_chans,
026cbc424a162e Rabin Vincent 2011-01-25 3670 DMA_TO_DEVICE);
026cbc424a162e Rabin Vincent 2011-01-25 3671
508849ade23c11 Linus Walleij 2010-06-20 3672 if (!base->lcla_pool.base_unaligned && base->lcla_pool.base)
508849ade23c11 Linus Walleij 2010-06-20 3673 free_pages((unsigned long)base->lcla_pool.base,
508849ade23c11 Linus Walleij 2010-06-20 3674 base->lcla_pool.pages);
767a9675c4a68a Jonas Aaberg 2010-08-09 3675
508849ade23c11 Linus Walleij 2010-06-20 3676 kfree(base->lcla_pool.base_unaligned);
767a9675c4a68a Jonas Aaberg 2010-08-09 3677
fffdaba402cea7 Yang Yingliang 2021-05-18 3678 if (base->lcpa_base)
fffdaba402cea7 Yang Yingliang 2021-05-18 @3679 iounmap(base->lcpa_base);
fffdaba402cea7 Yang Yingliang 2021-05-18 3680
8d318a50b3d72e Linus Walleij 2010-03-30 3681 if (base->phy_lcpa)
8d318a50b3d72e Linus Walleij 2010-03-30 3682 release_mem_region(base->phy_lcpa,
8d318a50b3d72e Linus Walleij 2010-03-30 3683 base->lcpa_size);
8d318a50b3d72e Linus Walleij 2010-03-30 3684 if (base->phy_start)
8d318a50b3d72e Linus Walleij 2010-03-30 3685 release_mem_region(base->phy_start,
8d318a50b3d72e Linus Walleij 2010-03-30 3686 base->phy_size);
8d318a50b3d72e Linus Walleij 2010-03-30 3687 if (base->clk) {
da2ac56a1bc9c6 Fabio Baltieri 2013-01-07 3688 clk_disable_unprepare(base->clk);
8d318a50b3d72e Linus Walleij 2010-03-30 3689 clk_put(base->clk);
8d318a50b3d72e Linus Walleij 2010-03-30 3690 }
8d318a50b3d72e Linus Walleij 2010-03-30 3691
28c7a19d230228 Narayanan G 2011-11-22 3692 if (base->lcpa_regulator) {
28c7a19d230228 Narayanan G 2011-11-22 3693 regulator_disable(base->lcpa_regulator);
28c7a19d230228 Narayanan G 2011-11-22 3694 regulator_put(base->lcpa_regulator);
28c7a19d230228 Narayanan G 2011-11-22 3695 }
28c7a19d230228 Narayanan G 2011-11-22 3696
8d318a50b3d72e Linus Walleij 2010-03-30 3697 kfree(base->lcla_pool.alloc_map);
8d318a50b3d72e Linus Walleij 2010-03-30 3698 kfree(base->lookup_log_chans);
8d318a50b3d72e Linus Walleij 2010-03-30 3699 kfree(base->lookup_phy_chans);
8d318a50b3d72e Linus Walleij 2010-03-30 3700 kfree(base->phy_res);
8d318a50b3d72e Linus Walleij 2010-03-30 3701 kfree(base);
a9bae06dd05fc8 Markus Elfring 2015-11-16 3702 report_failure:
6db5a8ba11bf23 Rabin Vincent 2011-01-25 3703 d40_err(&pdev->dev, "probe failed\n");
8d318a50b3d72e Linus Walleij 2010-03-30 3704 return ret;
8d318a50b3d72e Linus Walleij 2010-03-30 3705 }
8d318a50b3d72e Linus Walleij 2010-03-30 3706

:::::: The code at line 3663 was first introduced by commit
:::::: 28c7a19d230228ab9ae61c300c5003a2400fadd3 dmaengine/ste_dma40: Add support to use lcla area from esram

:::::: TO: Narayanan G <narayanan.gopalakrishnan@xxxxxxxxxxxxxx>
:::::: CC: Vinod Koul <vinod.koul@xxxxxxxxxxxxxxx>

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

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