drivers/power/reset/nvmem-reboot-mode.c:27:42: warning: passing argument 2 of 'nvmem_cell_write' from incompatible pointer type

[kbuild test robot]

tree:   https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ad5e427e0f6b702e52c11d1f7b2b7be3bac7de82
commit: 7a78a7f7695bf9ef9cef3c06fbc5fa4573fd0eef power: reset: nvmem-reboot-mode: use NVMEM as reboot mode write interface
date:   4 weeks ago
config: x86_64-randconfig-s1-07240714 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        git checkout 7a78a7f7695bf9ef9cef3c06fbc5fa4573fd0eef
        # save the attached .config to linux build tree
        make ARCH=x86_64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

   drivers/power/reset/nvmem-reboot-mode.c: In function 'nvmem_reboot_mode_write':
>> drivers/power/reset/nvmem-reboot-mode.c:27:42: warning: passing argument 2 of 'nvmem_cell_write' from incompatible pointer type
     ret = nvmem_cell_write(nvmem_rbm->cell, &magic, sizeof(magic));
                                             ^
   In file included from drivers/power/reset/nvmem-reboot-mode.c:10:0:
   include/linux/nvmem-consumer.h:120:19: note: expected 'const char *' but argument is of type 'unsigned int *'
    static inline int nvmem_cell_write(struct nvmem_cell *cell,
                      ^

vim +/nvmem_cell_write +27 drivers/power/reset/nvmem-reboot-mode.c

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