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Message-ID: <202104242321.anKMxYDi-lkp@intel.com>
Date: Sun, 25 Apr 2021 00:13:12 +0800
From: kernel test robot <lkp@...el.com>
To: Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>,
Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Cc: kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>,
Jonathan Neuschäfer <j.neuschaefer@....net>,
Rob Herring <robh+dt@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Aswath Govindraju <a-govindraju@...com>,
Vadym Kochan <vadym.kochan@...ision.eu>,
devicetree@...r.kernel.org
Subject: Re: [PATCH 2/4] misc: eeprom_93xx46: set size and addrlen according
to the dts
Hi Emmanuel,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on char-misc/char-misc-testing]
[also build test ERROR on soc/for-next robh/for-next linux/master linus/master v5.12-rc8 next-20210423]
[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]
url: https://github.com/0day-ci/linux/commits/Emmanuel-Gil-Peyrot/eeprom-93xx46-Add-support-for-Atmel-AT93C56-and-AT93C66/20210424-204020
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git e2cb6b891ad2b8caa9131e3be70f45243df82a80
config: riscv-randconfig-r036-20210424 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 3d1aecbd285709f58168b3ad65c06da4b42132a9)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://github.com/0day-ci/linux/commit/46b220709479fc35862b671390a11c6da2ec4d08
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Emmanuel-Gil-Peyrot/eeprom-93xx46-Add-support-for-Atmel-AT93C56-and-AT93C66/20210424-204020
git checkout 46b220709479fc35862b671390a11c6da2ec4d08
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:556:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inb(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:55:76: note: expanded from macro 'inb'
#define inb(c) ({ u8 __v; __io_pbr(); __v = readb_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:87:48: note: expanded from macro 'readb_cpu'
#define readb_cpu(c) ({ u8 __r = __raw_readb(c); __r; })
^
In file included from drivers/misc/eeprom/eeprom_93xx46.c:16:
In file included from include/linux/of_gpio.h:14:
In file included from include/linux/gpio/driver.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:564:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inw(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:56:76: note: expanded from macro 'inw'
#define inw(c) ({ u16 __v; __io_pbr(); __v = readw_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:88:76: note: expanded from macro 'readw_cpu'
#define readw_cpu(c) ({ u16 __r = le16_to_cpu((__force __le16)__raw_readw(c)); __r; })
^
include/uapi/linux/byteorder/little_endian.h:36:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from drivers/misc/eeprom/eeprom_93xx46.c:16:
In file included from include/linux/of_gpio.h:14:
In file included from include/linux/gpio/driver.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:572:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inl(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:57:76: note: expanded from macro 'inl'
#define inl(c) ({ u32 __v; __io_pbr(); __v = readl_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:89:76: note: expanded from macro 'readl_cpu'
#define readl_cpu(c) ({ u32 __r = le32_to_cpu((__force __le32)__raw_readl(c)); __r; })
^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from drivers/misc/eeprom/eeprom_93xx46.c:16:
In file included from include/linux/of_gpio.h:14:
In file included from include/linux/gpio/driver.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:580:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outb(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:59:68: note: expanded from macro 'outb'
#define outb(v,c) ({ __io_pbw(); writeb_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:91:52: note: expanded from macro 'writeb_cpu'
#define writeb_cpu(v, c) ((void)__raw_writeb((v), (c)))
^
In file included from drivers/misc/eeprom/eeprom_93xx46.c:16:
In file included from include/linux/of_gpio.h:14:
In file included from include/linux/gpio/driver.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:588:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outw(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:60:68: note: expanded from macro 'outw'
#define outw(v,c) ({ __io_pbw(); writew_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:92:76: note: expanded from macro 'writew_cpu'
#define writew_cpu(v, c) ((void)__raw_writew((__force u16)cpu_to_le16(v), (c)))
^
In file included from drivers/misc/eeprom/eeprom_93xx46.c:16:
In file included from include/linux/of_gpio.h:14:
In file included from include/linux/gpio/driver.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:596:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outl(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:61:68: note: expanded from macro 'outl'
#define outl(v,c) ({ __io_pbw(); writel_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:93:76: note: expanded from macro 'writel_cpu'
#define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v), (c)))
^
In file included from drivers/misc/eeprom/eeprom_93xx46.c:16:
In file included from include/linux/of_gpio.h:14:
In file included from include/linux/gpio/driver.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:1005:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
~~~~~~~~~~ ^
>> drivers/misc/eeprom/eeprom_93xx46.c:487:8: error: use of undeclared label 'fail'
goto fail;
^
7 warnings and 1 error generated.
vim +/fail +487 drivers/misc/eeprom/eeprom_93xx46.c
455
456 static int eeprom_93xx46_probe(struct spi_device *spi)
457 {
458 struct eeprom_93xx46_platform_data *pd;
459 struct eeprom_93xx46_dev *edev;
460 int err;
461
462 if (spi->dev.of_node) {
463 err = eeprom_93xx46_probe_dt(spi);
464 if (err < 0)
465 return err;
466 }
467
468 pd = spi->dev.platform_data;
469 if (!pd) {
470 dev_err(&spi->dev, "missing platform data\n");
471 return -ENODEV;
472 }
473
474 edev = devm_kzalloc(&spi->dev, sizeof(*edev), GFP_KERNEL);
475 if (!edev)
476 return -ENOMEM;
477
478 if (pd->flags & EE_SIZE1K)
479 edev->size = 128;
480 else if (pd->flags & EE_SIZE2K)
481 edev->size = 256;
482 else if (pd->flags & EE_SIZE4K)
483 edev->size = 512;
484 else {
485 dev_err(&spi->dev, "unspecified size\n");
486 err = -EINVAL;
> 487 goto fail;
488 }
489
490 if (pd->flags & EE_ADDR8)
491 edev->addrlen = ilog2(edev->size);
492 else if (pd->flags & EE_ADDR16)
493 edev->addrlen = ilog2(edev->size) - 1;
494 else {
495 dev_err(&spi->dev, "unspecified address type\n");
496 return -EINVAL;
497 }
498
499 mutex_init(&edev->lock);
500
501 edev->spi = spi;
502 edev->pdata = pd;
503
504 edev->nvmem_config.type = NVMEM_TYPE_EEPROM;
505 edev->nvmem_config.name = dev_name(&spi->dev);
506 edev->nvmem_config.dev = &spi->dev;
507 edev->nvmem_config.read_only = pd->flags & EE_READONLY;
508 edev->nvmem_config.root_only = true;
509 edev->nvmem_config.owner = THIS_MODULE;
510 edev->nvmem_config.compat = true;
511 edev->nvmem_config.base_dev = &spi->dev;
512 edev->nvmem_config.reg_read = eeprom_93xx46_read;
513 edev->nvmem_config.reg_write = eeprom_93xx46_write;
514 edev->nvmem_config.priv = edev;
515 edev->nvmem_config.stride = 4;
516 edev->nvmem_config.word_size = 1;
517 edev->nvmem_config.size = edev->size;
518
519 edev->nvmem = devm_nvmem_register(&spi->dev, &edev->nvmem_config);
520 if (IS_ERR(edev->nvmem))
521 return PTR_ERR(edev->nvmem);
522
523 dev_info(&spi->dev, "%d-bit eeprom containing %d bytes %s\n",
524 (pd->flags & EE_ADDR8) ? 8 : 16,
525 edev->size,
526 (pd->flags & EE_READONLY) ? "(readonly)" : "");
527
528 if (!(pd->flags & EE_READONLY)) {
529 if (device_create_file(&spi->dev, &dev_attr_erase))
530 dev_err(&spi->dev, "can't create erase interface\n");
531 }
532
533 spi_set_drvdata(spi, edev);
534 return 0;
535 }
536
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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