Hi Mathieu,

I love your patch! Yet something to improve:

[auto build test ERROR on linux/master]
[also build test ERROR on linus/master v5.8-rc5 next-20200714]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use  as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Mathieu-Poirier/remoteproc-stm32-Add-support-for-attaching-to-M4/20200708-053515
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9ebcfadb0610322ac537dd7aa5d9cbc2b2894c68
config: arm-randconfig-r011-20200714 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 02946de3802d3bc65bc9f2eb9b8d4969b5a7add8)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 

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

All errors (new ones prefixed by >>):

>> drivers/remoteproc/stm32_rproc.c:697:18: error: use of undeclared identifier 'RPROC_DETACHED'
                   rproc->state = RPROC_DETACHED;
                                  ^
   1 error generated.

vim +/RPROC_DETACHED +697 drivers/remoteproc/stm32_rproc.c

   661	
   662	
   663	static int stm32_rproc_probe(struct platform_device *pdev)
   664	{
   665		struct device *dev = &pdev->dev;
   666		struct stm32_rproc *ddata;
   667		struct device_node *np = dev->of_node;
   668		struct rproc *rproc;
   669		unsigned int state;
   670		int ret;
   671	
   672		ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
   673		if (ret)
   674			return ret;
   675	
   676		rproc = rproc_alloc(dev, np->name, &st_rproc_ops, NULL, sizeof(*ddata));
   677		if (!rproc)
   678			return -ENOMEM;
   679	
   680		ddata = rproc->priv;
   681	
   682		rproc_coredump_set_elf_info(rproc, ELFCLASS32, EM_NONE);
   683	
   684		ret = stm32_rproc_parse_dt(pdev, ddata, &rproc->auto_boot);
   685		if (ret)
   686			goto free_rproc;
   687	
   688		ret = stm32_rproc_of_memory_translations(pdev, ddata);
   689		if (ret)
   690			goto free_rproc;
   691	
   692		ret = stm32_rproc_get_m4_status(ddata, &state);
   693		if (ret)
   694			goto free_rproc;
   695	
   696		if (state == M4_STATE_CRUN)
 > 697			rproc->state = RPROC_DETACHED;
   698	
   699		rproc->has_iommu = false;
   700		ddata->workqueue = create_workqueue(dev_name(dev));
   701		if (!ddata->workqueue) {
   702			dev_err(dev, "cannot create workqueue\n");
   703			ret = -ENOMEM;
   704			goto free_rproc;
   705		}
   706	
   707		platform_set_drvdata(pdev, rproc);
   708	
   709		ret = stm32_rproc_request_mbox(rproc);
   710		if (ret)
   711			goto free_wkq;
   712	
   713		ret = rproc_add(rproc);
   714		if (ret)
   715			goto free_mb;
   716	
   717		return 0;
   718	
   719	free_mb:
   720		stm32_rproc_free_mbox(rproc);
   721	free_wkq:
   722		destroy_workqueue(ddata->workqueue);
   723	free_rproc:
   724		if (device_may_wakeup(dev)) {
   725			dev_pm_clear_wake_irq(dev);
   726			device_init_wakeup(dev, false);
   727		}
   728		rproc_free(rproc);
   729		return ret;
   730	}
   731	

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