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

From: kbuild test robot
Date: Sat Sep 07 2019 - 20:41:35 EST


Hi Han,

FYI, the error/warning still remains.

tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 950b07c14e8c59444e2359f15fd70ed5112e11a0
commit: 7a78a7f7695bf9ef9cef3c06fbc5fa4573fd0eef power: reset: nvmem-reboot-mode: use NVMEM as reboot mode write interface
date: 2 months ago
config: i386-randconfig-e003-201936 (attached as .config)
compiler: gcc-7 (Debian 7.4.0-11) 7.4.0
reproduce:
git checkout 7a78a7f7695bf9ef9cef3c06fbc5fa4573fd0eef
# save the attached .config to linux build tree
make ARCH=i386

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

All errors (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: error: passing argument 2 of 'nvmem_cell_write' from incompatible pointer type [-Werror=incompatible-pointer-types]
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,
^~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

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

18
19 static int nvmem_reboot_mode_write(struct reboot_mode_driver *reboot,
20 unsigned int magic)
21 {
22 int ret;
23 struct nvmem_reboot_mode *nvmem_rbm;
24
25 nvmem_rbm = container_of(reboot, struct nvmem_reboot_mode, reboot);
26
> 27 ret = nvmem_cell_write(nvmem_rbm->cell, &magic, sizeof(magic));
28 if (ret < 0)
29 dev_err(reboot->dev, "update reboot mode bits failed\n");
30
31 return ret;
32 }
33

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation

Attachment: .config.gz
Description: application/gzip