驱动加载报错“no symbol version for module_layout”解决办法

#modinfo drivers/block/floppy.ko
filename: drivers/block/floppy.ko
alias: block-major-2-*
license: GPL
author: Alain L. Knaff
srcversion: 4FE4A1303A32321170C1A4F
depends:
vermagic: 2.6.32-358.23.2.el6.x86_64 SMP mod_unload modversions
parm: floppy:charp
parm: FLOPPY_IRQ:int
parm: FLOPPY_DMA:int

#modinfo floppy
filename: /lib/modules/2.6.32-358.23.2.el6.x86_64/kernel/drivers/block/floppy.ko
alias: block-major-2-*
license: GPL
author: Alain L. Knaff
srcversion: 4FE4A1303A32321170C1A4F
depends:
vermagic: 2.6.32-358.23.2.el6.x86_64 SMP mod_unload modversions
parm: floppy:charp
parm: FLOPPY_IRQ:int
parm: FLOPPY_DMA:int
#dmesg
[175003.432326] floppy: no symbol version for module_layout
[175222.050988] nvme: no symbol version for module_layout

仔细排查，发现编译驱动时，提示Module.symvers文件缺失。
#make SUBDIRS=drivers/block/ modules

WARNING: Symbol version dump /home/2.6.32-358.23.2.el6.x86_64/Module.symvers
is missing; modules will have no dependencies and modversions.

CC [M] drivers/block/floppy.o
CC [M] drivers/block/loop.o
CC [M] drivers/block/cciss.o

于是尝试将当前内核目录下的Module.symvers文件拷贝到目录下，重新编译驱动。

#cp /usr/src/kernels/2.6.32-358.23.2.el6.x86_64/Module.symvers .

#make SUBDIRS=drivers/block/ modules
CC [M] drivers/block/floppy.o
CC [M] drivers/block/loop.o
CC [M] drivers/block/cciss.o
CC [M] drivers/block/pktcdvd.o
CC [M] drivers/block/nvme-core.o
CC [M] drivers/block/nvme-scsi.o
LD [M] drivers/block/nvme.o
CC [M] drivers/block/osdblk.o
CC [M] drivers/block/cryptoloop.o
CC [M] drivers/block/virtio_blk.o
CC [M] drivers/block/sx8.o
CC [M] drivers/block/xen-blkfront.o
CC [M] drivers/block/mtip32xx/mtip32xx.o
Building modules, stage 2.
MODPOST 11 modules

驱动重新编译后，再次加载，问题解决。