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Subject[krzk-mem-ctrl:for-v5.17/renesas-rpc 5/5] drivers/memory/renesas-rpc-if.c:253:14: warning: cast to smaller integer type 'enum rpcif_type' from 'const void *'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl.git for-v5.17/renesas-rpc
head: b04cc0d912eb80d3c438b11d96ca847c3e77e8ab
commit: b04cc0d912eb80d3c438b11d96ca847c3e77e8ab [5/5] memory: renesas-rpc-if: Add support for RZ/G2L
config: x86_64-buildonly-randconfig-r002-20211116 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4c2cf3a314d9131b1b288e7c8ab0c75ac1b2be1d)
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://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl.git/commit/?id=b04cc0d912eb80d3c438b11d96ca847c3e77e8ab
git remote add krzk-mem-ctrl https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl.git
git fetch --no-tags krzk-mem-ctrl for-v5.17/renesas-rpc
git checkout b04cc0d912eb80d3c438b11d96ca847c3e77e8ab
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64

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 >>):

>> drivers/memory/renesas-rpc-if.c:253:14: warning: cast to smaller integer type 'enum rpcif_type' from 'const void *' [-Wvoid-pointer-to-enum-cast]
rpc->type = (enum rpcif_type)of_device_get_match_data(dev);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.


vim +253 drivers/memory/renesas-rpc-if.c

226
227 int rpcif_sw_init(struct rpcif *rpc, struct device *dev)
228 {
229 struct platform_device *pdev = to_platform_device(dev);
230 struct resource *res;
231
232 rpc->dev = dev;
233
234 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
235 rpc->base = devm_ioremap_resource(&pdev->dev, res);
236 if (IS_ERR(rpc->base))
237 return PTR_ERR(rpc->base);
238
239 rpc->regmap = devm_regmap_init(&pdev->dev, NULL, rpc, &rpcif_regmap_config);
240 if (IS_ERR(rpc->regmap)) {
241 dev_err(&pdev->dev,
242 "failed to init regmap for rpcif, error %ld\n",
243 PTR_ERR(rpc->regmap));
244 return PTR_ERR(rpc->regmap);
245 }
246
247 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dirmap");
248 rpc->dirmap = devm_ioremap_resource(&pdev->dev, res);
249 if (IS_ERR(rpc->dirmap))
250 return PTR_ERR(rpc->dirmap);
251 rpc->size = resource_size(res);
252
> 253 rpc->type = (enum rpcif_type)of_device_get_match_data(dev);
254 rpc->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
255
256 return PTR_ERR_OR_ZERO(rpc->rstc);
257 }
258 EXPORT_SYMBOL(rpcif_sw_init);
259

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