2 sparse warnings: incorrect type in argument 1 (different address spaces), incorrect type in initializer (incompatible argument 2 (different address spaces))

[RobertBerger]

I am not sure what impact this has, but someone might want to look at those 2 sparse warnings for the crash memory driver.

USE_SPARSE: yes
+ which sparse
/opt/resy/5.2.66/multi-v7-ml/imx6q-phytec-mira-rdk-nand/sysroots/x86_64-resysdk-linux/usr/bin/sparse
+ make C=1
Building with KERNELDIR = /home/student/imx6q-phytec-mira-rdk-nand/linux-stable-custom 
make -C /home/student/imx6q-phytec-mira-rdk-nand/linux-stable-custom M=/home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver modules 
make[1] Entering directory '/home/student/imx6q-phytec-mira-rdk-nand/linux-stable-custom-elin' 
Building with KERNELRELEASE = 6.12.16-custom-student-debug-g054daea628da 
  CC [M]  /home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.o 
  CHECK   /home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.c 
/home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.c:250:26: warning: incorrect type in argument 1 (different address spaces)
/home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.c:250:26:    expected void [noderef] __user *to
/home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.c:250:26:    got char *buf
/home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.c:317:17: warning: incorrect type in initializer (incompatible argument 2 (different address spaces))
/home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.c:317:17:    expected int ( *read )( ... )
/home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.c:317:17:    got int ( * )( ... )
Building with KERNELRELEASE = 6.12.16-custom-student-debug-g054daea628da 
  MODPOST /home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/Module.symvers 
  CC [M]  /home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.mod.o 
  CC [M]  /home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/.module-common.o 
  LD [M]  /home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/64_crash_memory_driver/crash.ko 
make[1] Leaving directory '/home/student/imx6q-phytec-mira-rdk-nand/linux-stable-custom-elin' 

[RobertBerger]

Please note that this is against a 6.12.x kernel, so it might not be supposed to work.

[RobertBerger]

Hmm, the driver did not change for 2 years, so it might be an issue.