tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git class_cleanup head: 7c7807965477de8463e209426241adc80f5e9bb7 commit: 7c7807965477de8463e209426241adc80f5e9bb7 [77/77] driver core: class: remove subsystem private pointer from struct class config: arm-randconfig-r046-20230326 (https://download.01.org/0day-ci/archive/20230326/202303261930.3hImFQWz-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/commit/?id=7c7807965477de8463e209426241adc80f5e9bb7 git remote add driver-core https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git git fetch --no-tags driver-core class_cleanup git checkout 7c7807965477de8463e209426241adc80f5e9bb7 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/gpio/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303261930.3hImFQWz-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/gpio/gpiolib-sysfs.c:557:18: error: no member named 'p' in 'struct class' if (!gpio_class.p) { ~~~~~~~~~~ ^ drivers/gpio/gpiolib-sysfs.c:731:18: error: no member named 'p' in 'struct class' if (!gpio_class.p) ~~~~~~~~~~ ^ 2 errors generated. vim +557 drivers/gpio/gpiolib-sysfs.c 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 528 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 529 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 530 /** 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 531 * gpiod_export - export a GPIO through sysfs 2d9d05192e7d1a Thierry Reding 2017-07-24 532 * @desc: GPIO to make available, already requested 2d9d05192e7d1a Thierry Reding 2017-07-24 533 * @direction_may_change: true if userspace may change GPIO direction 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 534 * Context: arch_initcall or later 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 535 * 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 536 * When drivers want to make a GPIO accessible to userspace after they 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 537 * have requested it -- perhaps while debugging, or as part of their 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 538 * public interface -- they may use this routine. If the GPIO can 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 539 * change direction (some can't) and the caller allows it, userspace 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 540 * will see "direction" sysfs attribute which may be used to change 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 541 * the gpio's direction. A "value" attribute will always be provided. 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 542 * 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 543 * Returns zero on success, else an error. 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 544 */ 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 545 int gpiod_export(struct gpio_desc *desc, bool direction_may_change) 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 546 { 483d8211087910 Johan Hovold 2015-04-21 547 struct gpio_chip *chip; ff2b1359229927 Linus Walleij 2015-10-20 548 struct gpio_device *gdev; c43960fbcc514b Johan Hovold 2015-05-04 549 struct gpiod_data *data; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 550 unsigned long flags; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 551 int status; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 552 const char *ioname = NULL; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 553 struct device *dev; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 554 int offset; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 555 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 556 /* can't export until sysfs is available ... */ 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 @557 if (!gpio_class.p) { 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 558 pr_debug("%s: called too early!\n", __func__); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 559 return -ENOENT; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 560 } 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 561 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 562 if (!desc) { 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 563 pr_debug("%s: invalid gpio descriptor\n", __func__); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 564 return -EINVAL; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 565 } 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 566 fdeb8e1547cb9d Linus Walleij 2016-02-10 567 gdev = desc->gdev; fdeb8e1547cb9d Linus Walleij 2016-02-10 568 chip = gdev->chip; 483d8211087910 Johan Hovold 2015-04-21 569 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 570 mutex_lock(&sysfs_lock); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 571 483d8211087910 Johan Hovold 2015-04-21 572 /* check if chip is being removed */ afbc4f312b5e6e Linus Walleij 2016-02-09 573 if (!chip || !gdev->mockdev) { 483d8211087910 Johan Hovold 2015-04-21 574 status = -ENODEV; c43960fbcc514b Johan Hovold 2015-05-04 575 goto err_unlock; 483d8211087910 Johan Hovold 2015-04-21 576 } 483d8211087910 Johan Hovold 2015-04-21 577 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 578 spin_lock_irqsave(&gpio_lock, flags); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 579 if (!test_bit(FLAG_REQUESTED, &desc->flags) || 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 580 test_bit(FLAG_EXPORT, &desc->flags)) { 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 581 spin_unlock_irqrestore(&gpio_lock, flags); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 582 gpiod_dbg(desc, "%s: unavailable (requested=%d, exported=%d)\n", 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 583 __func__, 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 584 test_bit(FLAG_REQUESTED, &desc->flags), 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 585 test_bit(FLAG_EXPORT, &desc->flags)); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 586 status = -EPERM; c43960fbcc514b Johan Hovold 2015-05-04 587 goto err_unlock; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 588 } 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 589 spin_unlock_irqrestore(&gpio_lock, flags); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 590 c43960fbcc514b Johan Hovold 2015-05-04 591 data = kzalloc(sizeof(*data), GFP_KERNEL); c43960fbcc514b Johan Hovold 2015-05-04 592 if (!data) { c43960fbcc514b Johan Hovold 2015-05-04 593 status = -ENOMEM; c43960fbcc514b Johan Hovold 2015-05-04 594 goto err_unlock; c43960fbcc514b Johan Hovold 2015-05-04 595 } c43960fbcc514b Johan Hovold 2015-05-04 596 c43960fbcc514b Johan Hovold 2015-05-04 597 data->desc = desc; 6ffcb7971486ea Johan Hovold 2015-05-04 598 mutex_init(&data->mutex); 427fdeef5014c7 Johan Hovold 2015-05-04 599 if (chip->direction_input && chip->direction_output) 427fdeef5014c7 Johan Hovold 2015-05-04 600 data->direction_can_change = direction_may_change; 427fdeef5014c7 Johan Hovold 2015-05-04 601 else 427fdeef5014c7 Johan Hovold 2015-05-04 602 data->direction_can_change = false; c43960fbcc514b Johan Hovold 2015-05-04 603 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 604 offset = gpio_chip_hwgpio(desc); cecf58ab551f74 Johan Hovold 2015-05-04 605 if (chip->names && chip->names[offset]) cecf58ab551f74 Johan Hovold 2015-05-04 606 ioname = chip->names[offset]; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 607 ff2b1359229927 Linus Walleij 2015-10-20 608 dev = device_create_with_groups(&gpio_class, &gdev->dev, c43960fbcc514b Johan Hovold 2015-05-04 609 MKDEV(0, 0), data, gpio_groups, 0915e6feb38de8 Johan Hovold 2015-01-13 610 ioname ? ioname : "gpio%u", 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 611 desc_to_gpio(desc)); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 612 if (IS_ERR(dev)) { 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 613 status = PTR_ERR(dev); c43960fbcc514b Johan Hovold 2015-05-04 614 goto err_free_data; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 615 } 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 616 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 617 set_bit(FLAG_EXPORT, &desc->flags); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 618 mutex_unlock(&sysfs_lock); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 619 return 0; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 620 c43960fbcc514b Johan Hovold 2015-05-04 621 err_free_data: c43960fbcc514b Johan Hovold 2015-05-04 622 kfree(data); c43960fbcc514b Johan Hovold 2015-05-04 623 err_unlock: 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 624 mutex_unlock(&sysfs_lock); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 625 gpiod_dbg(desc, "%s: status %d\n", __func__, status); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 626 return status; 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 627 } 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 628 EXPORT_SYMBOL_GPL(gpiod_export); 0eb4c6c2671ca0 Alexandre Courbot 2014-07-01 629 :::::: The code at line 557 was first introduced by commit :::::: 0eb4c6c2671ca05e447811041c838e2a6bc2a1f4 gpio: move sysfs support to its own file :::::: TO: Alexandre Courbot <acourbot@xxxxxxxxxx> :::::: CC: Linus Walleij <linus.walleij@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
