报错内容：
drivers/char/irqk.o: In function `init_module':
irqk.c:(.init.text+0x0): multiple definition of `init_module'
drivers/char/edmak.o:edmak.c:(.init.text+0x0): first defined here
drivers/char/irqk.o: In function `cleanup_module':
irqk.c:(.exit.text+0x0): multiple definition of `cleanup_module'
drivers/char/edmak.o:edmak.c:(.exit.text+0x0): first defined here
drivers/char/dm365mmap.o: In function `init_module':
dm365mmap.c:(.init.text+0x0): multiple definition of `init_module'
drivers/char/edmak.o:edmak.c:(.init.text+0x0): first defined here
drivers/char/dm365mmap.o: In function `cleanup_module':
dm365mmap.c:(.exit.text+0x0): multiple definition of `cleanup_module'
drivers/char/edmak.o:edmak.c:(.exit.text+0x0): first defined here
drivers/char/cmemk.o: In function `init_module':
cmemk.c:(.init.text+0x0): multiple definition of `init_module'
drivers/char/edmak.o:edmak.c:(.init.text+0x0): first defined here
drivers/char/cmemk.o: In function `cleanup_module':
cmemk.c:(.exit.text+0x0): multiple definition of `cleanup_module'
drivers/char/edmak.o:edmak.c:(.exit.text+0x0): first defined here
make[6]: *** [drivers/char/built-in.o] Error 1
Makefile部分配置，直接编译到内核：
obj-y += edmak.o
obj-y += irqk.o
obj-y += dm365mmap.o
obj-y += cmemk.o
麻烦各位帮忙看看，thx
