Re: [PATCH v8 10/11] tty: serial: Add Nuvoton ma35d1 serial driver support

From: kernel test robot
Date: Tue Apr 25 2023 - 10:02:58 EST


Hi Jacky,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on clk/clk-next linus/master v6.3 next-20230424]
[cannot apply to pza/reset/next pza/imx-drm/next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Jacky-Huang/arm64-Kconfig-platforms-Add-config-for-Nuvoton-MA35-platform/20230425-182746
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link: https://lore.kernel.org/r/20230425102418.185783-11-ychuang570808%40gmail.com
patch subject: [PATCH v8 10/11] tty: serial: Add Nuvoton ma35d1 serial driver support
config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230425/202304252118.P0ZCvlQO-lkp@xxxxxxxxx/config)
compiler: sparc64-linux-gcc (GCC) 12.1.0
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/intel-lab-lkp/linux/commit/9f299bce6e0e871aa112e06e2451e88198a75d97
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Jacky-Huang/arm64-Kconfig-platforms-Add-config-for-Nuvoton-MA35-platform/20230425-182746
git checkout 9f299bce6e0e871aa112e06e2451e88198a75d97
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/tty/serial/

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/202304252118.P0ZCvlQO-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

drivers/tty/serial/ma35d1_serial.c: In function 'ma35d1serial_probe':
drivers/tty/serial/ma35d1_serial.c:675:28: error: implicit declaration of function 'devm_ioremap'; did you mean 'of_ioremap'? [-Werror=implicit-function-declaration]
675 | up->port.membase = devm_ioremap(&pdev->dev, up->port.iobase, UART_REG_SIZE);
| ^~~~~~~~~~~~
| of_ioremap
>> drivers/tty/serial/ma35d1_serial.c:675:26: warning: assignment to 'unsigned char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
675 | up->port.membase = devm_ioremap(&pdev->dev, up->port.iobase, UART_REG_SIZE);
| ^
cc1: some warnings being treated as errors


vim +675 drivers/tty/serial/ma35d1_serial.c

647
648 /*
649 * Register a set of serial devices attached to a platform device.
650 * The list is terminated with a zero flags entry, which means we expect
651 * all entries to have at least UPF_BOOT_AUTOCONF set.
652 */
653 static int ma35d1serial_probe(struct platform_device *pdev)
654 {
655 struct resource *res_mem;
656 struct uart_ma35d1_port *up;
657 int ret = 0;
658 struct clk *clk;
659 int err;
660
661 if (pdev->dev.of_node) {
662 ret = of_alias_get_id(pdev->dev.of_node, "serial");
663 if (ret < 0) {
664 dev_err(&pdev->dev, "failed to get alias/pdev id, errno %d\n", ret);
665 return ret;
666 }
667 }
668 up = &ma35d1serial_ports[ret];
669 up->port.line = ret;
670 res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
671 if (!res_mem)
672 return -ENODEV;
673
674 up->port.iobase = res_mem->start;
> 675 up->port.membase = devm_ioremap(&pdev->dev, up->port.iobase, UART_REG_SIZE);
676 up->port.ops = &ma35d1serial_ops;
677
678 spin_lock_init(&up->port.lock);
679
680 clk = of_clk_get(pdev->dev.of_node, 0);
681 if (IS_ERR(clk)) {
682 err = PTR_ERR(clk);
683 dev_err(&pdev->dev, "failed to get core clk: %d\n", err);
684 return -ENOENT;
685 }
686
687 err = clk_prepare_enable(clk);
688 if (err)
689 return -ENOENT;
690
691 if (up->port.line != 0)
692 up->port.uartclk = clk_get_rate(clk);
693
694 ret = platform_get_irq(pdev, 0);
695 if (ret < 0)
696 return ret;
697 up->port.irq = ret;
698 up->port.dev = &pdev->dev;
699 up->port.flags = UPF_BOOT_AUTOCONF;
700
701 platform_set_drvdata(pdev, up);
702
703 return uart_add_one_port(&ma35d1serial_reg, &up->port);
704 }
705

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests