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[2/3] mtd: core: add nvmem-partitions compatible to parse mtd as nvmem cells

Message ID 20210216195618.27959-3-ansuelsmth@gmail.com
State New
Headers show
Series Implement nvmem support for mtd | expand

Commit Message

Ansuel Smith Feb. 16, 2021, 7:56 p.m. UTC
Partitions that contains the nvmem-partitions compatible will register
their direct subonodes as nvmem cells and the node will be treated as a
nvmem provider.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
 drivers/mtd/mtdcore.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

kernel test robot Feb. 16, 2021, 9:10 p.m. UTC | #1
Hi Ansuel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on mtd/mtd/next]
[also build test ERROR on mtd/mtd/fixes robh/for-next v5.11 next-20210216]
[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/Ansuel-Smith/Implement-nvmem-support-for-mtd/20210217-035931
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next
config: m68k-randconfig-r011-20210216 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/ea1902bc853fa1f1050cc741912709fe5ebbdc41
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Ansuel-Smith/Implement-nvmem-support-for-mtd/20210217-035931
        git checkout ea1902bc853fa1f1050cc741912709fe5ebbdc41
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

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/mtd/mtdcore.c: In function 'mtd_nvmem_add':
>> drivers/mtd/mtdcore.c:546:47: error: 'node' undeclared (first use in this function); did you mean 'inode'?
     546 |  config.no_of_node = !of_device_is_compatible(node, "nvmem-partitions");
         |                                               ^~~~
         |                                               inode
   drivers/mtd/mtdcore.c:546:47: note: each undeclared identifier is reported only once for each function it appears in


vim +546 drivers/mtd/mtdcore.c

   531	
   532	static int mtd_nvmem_add(struct mtd_info *mtd)
   533	{
   534		struct nvmem_config config = {};
   535	
   536		config.id = -1;
   537		config.dev = &mtd->dev;
   538		config.name = dev_name(&mtd->dev);
   539		config.owner = THIS_MODULE;
   540		config.reg_read = mtd_nvmem_reg_read;
   541		config.size = mtd->size;
   542		config.word_size = 1;
   543		config.stride = 1;
   544		config.read_only = true;
   545		config.root_only = true;
 > 546		config.no_of_node = !of_device_is_compatible(node, "nvmem-partitions");
   547		config.priv = mtd;
   548	
   549		mtd->nvmem = nvmem_register(&config);
   550		if (IS_ERR(mtd->nvmem)) {
   551			/* Just ignore if there is no NVMEM support in the kernel */
   552			if (PTR_ERR(mtd->nvmem) == -EOPNOTSUPP) {
   553				mtd->nvmem = NULL;
   554			} else {
   555				dev_err(&mtd->dev, "Failed to register NVMEM device\n");
   556				return PTR_ERR(mtd->nvmem);
   557			}
   558		}
   559	
   560		return 0;
   561	}
   562	

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

Patch

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 2d6423d89a17..2a40b00ec3d0 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -543,7 +543,7 @@  static int mtd_nvmem_add(struct mtd_info *mtd)
 	config.stride = 1;
 	config.read_only = true;
 	config.root_only = true;
-	config.no_of_node = true;
+	config.no_of_node = !of_device_is_compatible(node, "nvmem-partitions");
 	config.priv = mtd;
 
 	mtd->nvmem = nvmem_register(&config);