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Message-ID: <202205260455.rECeeBpC-lkp@intel.com>
Date: Thu, 26 May 2022 04:05:25 +0800
From: kernel test robot <lkp@...el.com>
To: André Almeida <andrealmeid@...labora.com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: drivers/spi/spi-amd.c:296:21: warning: cast to smaller integer type
'enum amd_spi_versions' from 'const void *'
Hi André,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 64e34b50d7aeee7082287ec39f9d34d4e60f3a04
commit: 209043554915d7c51ac112a668ad1a255e1bea61 spi: amd: Add support for version AMDI0062
date: 3 months ago
config: s390-randconfig-r036-20220524 (https://download.01.org/0day-ci/archive/20220526/202205260455.rECeeBpC-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d52a6e75b0c402c7f3b42a2b1b2873f151220947)
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 s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=209043554915d7c51ac112a668ad1a255e1bea61
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 209043554915d7c51ac112a668ad1a255e1bea61
# 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=s390 SHELL=/bin/bash drivers/spi/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from drivers/spi/spi-amd.c:14:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/spi/spi-amd.c:14:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/spi/spi-amd.c:14:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> drivers/spi/spi-amd.c:296:21: warning: cast to smaller integer type 'enum amd_spi_versions' from 'const void *' [-Wvoid-pointer-to-enum-cast]
amd_spi->version = (enum amd_spi_versions) device_get_match_data(dev);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/spi/spi-amd.c:333:23: error: use of undeclared identifier 'spi_acpi_match'
.acpi_match_table = spi_acpi_match,
^
13 warnings and 1 error generated.
vim +296 drivers/spi/spi-amd.c
272
273 static int amd_spi_probe(struct platform_device *pdev)
274 {
275 struct device *dev = &pdev->dev;
276 struct spi_master *master;
277 struct amd_spi *amd_spi;
278 int err = 0;
279
280 /* Allocate storage for spi_master and driver private data */
281 master = spi_alloc_master(dev, sizeof(struct amd_spi));
282 if (!master) {
283 dev_err(dev, "Error allocating SPI master\n");
284 return -ENOMEM;
285 }
286
287 amd_spi = spi_master_get_devdata(master);
288 amd_spi->io_remap_addr = devm_platform_ioremap_resource(pdev, 0);
289 if (IS_ERR(amd_spi->io_remap_addr)) {
290 err = PTR_ERR(amd_spi->io_remap_addr);
291 dev_err(dev, "error %d ioremap of SPI registers failed\n", err);
292 goto err_free_master;
293 }
294 dev_dbg(dev, "io_remap_address: %p\n", amd_spi->io_remap_addr);
295
> 296 amd_spi->version = (enum amd_spi_versions) device_get_match_data(dev);
297
298 /* Initialize the spi_master fields */
299 master->bus_num = 0;
300 master->num_chipselect = 4;
301 master->mode_bits = 0;
302 master->flags = SPI_MASTER_HALF_DUPLEX;
303 master->setup = amd_spi_master_setup;
304 master->transfer_one_message = amd_spi_master_transfer;
305
306 /* Register the controller with SPI framework */
307 err = devm_spi_register_master(dev, master);
308 if (err) {
309 dev_err(dev, "error %d registering SPI controller\n", err);
310 goto err_free_master;
311 }
312
313 return 0;
314
315 err_free_master:
316 spi_master_put(master);
317
318 return err;
319 }
320
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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