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Message-ID: <e9a41f2c-002e-4e56-7cd2-9f514bb82b99@codeaurora.org>
Date: Sun, 17 Mar 2019 19:39:26 +0530
From: Gaurav Kohli <gkohli@...eaurora.org>
To: kbuild test robot <lkp@...el.com>
Cc: kbuild-all@...org, srinivas.kandagatla@...aro.org,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] nvmem: core: Set no-read-write provider to avoid
userspace read/write
Oh i was in wrong version, will upload new patch v2, thanks for update.
Regards
Gaurav
On 3/17/2019 9:51 AM, kbuild test robot wrote:
> Hi Gaurav,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on linus/master]
> [also build test ERROR on v5.0 next-20190306]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url: https://github.com/0day-ci/linux/commits/Gaurav-Kohli/nvmem-core-Set-no-read-write-provider-to-avoid-userspace-read-write/20190317-105219
> config: i386-randconfig-x010-201911 (attached as .config)
> compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
> reproduce:
> # save the attached .config to linux build tree
> make ARCH=i386
>
> All errors (new ones prefixed by >>):
>
> drivers//nvmem/core.c: In function 'nvmem_register':
>>> drivers//nvmem/core.c:662:47: error: 'np' undeclared (first use in this function); did you mean 'up'?
> nvmem->no_read_write = of_property_read_bool(np, "no-read-write") |
> ^~
> up
> drivers//nvmem/core.c:662:47: note: each undeclared identifier is reported only once for each function it appears in
>
> vim +662 drivers//nvmem/core.c
>
> 602
> 603 /**
> 604 * nvmem_register() - Register a nvmem device for given nvmem_config.
> 605 * Also creates an binary entry in /sys/bus/nvmem/devices/dev-name/nvmem
> 606 *
> 607 * @config: nvmem device configuration with which nvmem device is created.
> 608 *
> 609 * Return: Will be an ERR_PTR() on error or a valid pointer to nvmem_device
> 610 * on success.
> 611 */
> 612
> 613 struct nvmem_device *nvmem_register(const struct nvmem_config *config)
> 614 {
> 615 struct nvmem_device *nvmem;
> 616 int rval;
> 617
> 618 if (!config->dev)
> 619 return ERR_PTR(-EINVAL);
> 620
> 621 nvmem = kzalloc(sizeof(*nvmem), GFP_KERNEL);
> 622 if (!nvmem)
> 623 return ERR_PTR(-ENOMEM);
> 624
> 625 rval = ida_simple_get(&nvmem_ida, 0, 0, GFP_KERNEL);
> 626 if (rval < 0) {
> 627 kfree(nvmem);
> 628 return ERR_PTR(rval);
> 629 }
> 630
> 631 kref_init(&nvmem->refcnt);
> 632 INIT_LIST_HEAD(&nvmem->cells);
> 633
> 634 nvmem->id = rval;
> 635 nvmem->owner = config->owner;
> 636 if (!nvmem->owner && config->dev->driver)
> 637 nvmem->owner = config->dev->driver->owner;
> 638 nvmem->stride = config->stride ?: 1;
> 639 nvmem->word_size = config->word_size ?: 1;
> 640 nvmem->size = config->size;
> 641 nvmem->dev.type = &nvmem_provider_type;
> 642 nvmem->dev.bus = &nvmem_bus_type;
> 643 nvmem->dev.parent = config->dev;
> 644 nvmem->priv = config->priv;
> 645 nvmem->type = config->type;
> 646 nvmem->reg_read = config->reg_read;
> 647 nvmem->reg_write = config->reg_write;
> 648 if (!config->no_of_node)
> 649 nvmem->dev.of_node = config->dev->of_node;
> 650
> 651 if (config->id == -1 && config->name) {
> 652 dev_set_name(&nvmem->dev, "%s", config->name);
> 653 } else {
> 654 dev_set_name(&nvmem->dev, "%s%d",
> 655 config->name ? : "nvmem",
> 656 config->name ? config->id : nvmem->id);
> 657 }
> 658
> 659 nvmem->read_only = device_property_present(config->dev, "read-only") ||
> 660 config->read_only || !nvmem->reg_write;
> 661
> > 662 nvmem->no_read_write = of_property_read_bool(np, "no-read-write") |
> 663 config->read_only;
> 664 if (config->root_only)
> 665 nvmem->dev.groups = nvmem->read_only ?
> 666 nvmem_ro_root_dev_groups :
> 667 nvmem_rw_root_dev_groups;
> 668 else
> 669 nvmem->dev.groups = nvmem->read_only ?
> 670 nvmem_ro_dev_groups :
> 671 nvmem_rw_dev_groups;
> 672
> 673 device_initialize(&nvmem->dev);
> 674
> 675 dev_dbg(&nvmem->dev, "Registering nvmem device %s\n", config->name);
> 676
> 677 rval = device_add(&nvmem->dev);
> 678 if (rval)
> 679 goto err_put_device;
> 680
> 681 if (config->compat) {
> 682 rval = nvmem_setup_compat(nvmem, config);
> 683 if (rval)
> 684 goto err_device_del;
> 685 }
> 686
> 687 if (config->cells) {
> 688 rval = nvmem_add_cells(nvmem, config->cells, config->ncells);
> 689 if (rval)
> 690 goto err_teardown_compat;
> 691 }
> 692
> 693 rval = nvmem_add_cells_from_table(nvmem);
> 694 if (rval)
> 695 goto err_remove_cells;
> 696
> 697 rval = nvmem_add_cells_from_of(nvmem);
> 698 if (rval)
> 699 goto err_remove_cells;
> 700
> 701 blocking_notifier_call_chain(&nvmem_notifier, NVMEM_ADD, nvmem);
> 702
> 703 return nvmem;
> 704
> 705 err_remove_cells:
> 706 nvmem_device_remove_all_cells(nvmem);
> 707 err_teardown_compat:
> 708 if (config->compat)
> 709 device_remove_bin_file(nvmem->base_dev, &nvmem->eeprom);
> 710 err_device_del:
> 711 device_del(&nvmem->dev);
> 712 err_put_device:
> 713 put_device(&nvmem->dev);
> 714
> 715 return ERR_PTR(rval);
> 716 }
> 717 EXPORT_SYMBOL_GPL(nvmem_register);
> 718
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
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