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Subjectsound/soc/fsl/imx-audmux.c:301:16: warning: cast to smaller integer type 'enum imx_audmux_type' from 'const void *'
Hi Fabio,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 8ab774587903771821b59471cc723bba6d893942
commit: 6a8b8b582db13a18235f3b0400f103a0573c7859 ASoC: imx-audmux: Remove unused .id_table
date: 12 months ago
config: arm64-buildonly-randconfig-r003-20211116 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project fbe72e41b99dc7994daac300d208a955be3e4a0a)
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 arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6a8b8b582db13a18235f3b0400f103a0573c7859
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 6a8b8b582db13a18235f3b0400f103a0573c7859
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> sound/soc/fsl/imx-audmux.c:301:16: warning: cast to smaller integer type 'enum imx_audmux_type' from 'const void *' [-Wvoid-pointer-to-enum-cast]
audmux_type = (enum imx_audmux_type)of_device_get_match_data(&pdev->dev);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.


vim +301 sound/soc/fsl/imx-audmux.c

287
288 static int imx_audmux_probe(struct platform_device *pdev)
289 {
290 audmux_base = devm_platform_ioremap_resource(pdev, 0);
291 if (IS_ERR(audmux_base))
292 return PTR_ERR(audmux_base);
293
294 audmux_clk = devm_clk_get(&pdev->dev, "audmux");
295 if (IS_ERR(audmux_clk)) {
296 dev_dbg(&pdev->dev, "cannot get clock: %ld\n",
297 PTR_ERR(audmux_clk));
298 audmux_clk = NULL;
299 }
300
> 301 audmux_type = (enum imx_audmux_type)of_device_get_match_data(&pdev->dev);
302
303 switch (audmux_type) {
304 case IMX31_AUDMUX:
305 audmux_debugfs_init();
306 reg_max = 14;
307 break;
308 case IMX21_AUDMUX:
309 reg_max = 6;
310 break;
311 default:
312 dev_err(&pdev->dev, "unsupported version!\n");
313 return -EINVAL;
314 }
315
316 regcache = devm_kzalloc(&pdev->dev, sizeof(u32) * reg_max, GFP_KERNEL);
317 if (!regcache)
318 return -ENOMEM;
319
320 imx_audmux_parse_dt_defaults(pdev, pdev->dev.of_node);
321
322 return 0;
323 }
324

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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