linux-3.4.6内核添加yaffs2文件系统支持后编译出错内核移植编译时出现下面的错误无法编译，求解决方法。最新yaffs2+linux-3.4.6

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我是靠谱客的博主繁荣悟空，最近开发中收集的这篇文章主要介绍linux-3.4.6内核添加yaffs2文件系统支持后编译出错内核移植编译时出现下面的错误无法编译，求解决方法。最新yaffs2+linux-3.4.6，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

原作网址：http://my.oschina.net/u/174242/blog/73280

内核移植编译时出现下面的错误无法编译，求解决方法。最新yaffs2+linux-3.4.6

fs/yaffs2/yaffs_vfs.c:440: warning: initialization from incompatible pointer type
fs/yaffs2/yaffs_vfs.c:445: warning: initialization from incompatible pointer type
fs/yaffs2/yaffs_vfs.c:447: warning: initialization from incompatible pointer type
fs/yaffs2/yaffs_vfs.c: In function 'yaffs_mtd_put_super':
fs/yaffs2/yaffs_vfs.c:2514: error : 'struct mtd_info' has no member named 'sync'
fs/yaffs2/yaffs_vfs.c:2515: error: 'struct mtd_info' has no member named 'sync'
fs/yaffs2/yaffs_vfs.c: In function 'yaffs_internal_read_super':
fs/yaffs2/yaffs_vfs.c:2702: error: 'struct mtd_info' has no member named 'erase'
fs/yaffs2/yaffs_vfs.c:2703: error: 'struct mtd_info' has no member named 'read'
fs/yaffs2/yaffs_vfs.c:2704: error: 'struct mtd_info' has no member named 'write'
fs/yaffs2/yaffs_vfs.c:2705: error: 'struct mtd_info' has no member named 'read_oob'
fs/yaffs2/yaffs_vfs.c:2706: error: 'struct mtd_info' has no member named 'write_oob'
fs/yaffs2/yaffs_vfs.c:2707: error: 'struct mtd_info' has no member named 'block_isbad'
fs/yaffs2/yaffs_vfs.c:2708: error: 'struct mtd_info' has no member named 'block_markbad'
fs/yaffs2/yaffs_vfs.c:2732: error: 'struct mtd_info' has no member named 'erase'
fs/yaffs2/yaffs_vfs.c:2733: error: 'struct mtd_info' has no member named 'block_isbad'
fs/yaffs2/yaffs_vfs.c:2734: error: 'struct mtd_info' has no member named 'block_markbad'
fs/yaffs2/yaffs_vfs.c:2734: error: 'struct mtd_info' has no member named 'read'
fs/yaffs2/yaffs_vfs.c:2734: error: 'struct mtd_info' has no member named 'write'
fs/yaffs2/yaffs_vfs.c:2736: error: 'struct mtd_info' has no member named 'read_oob'
fs/yaffs2/yaffs_vfs.c:2736: error: 'struct mtd_info' has no member named 'write_oob'
fs/yaffs2/yaffs_vfs.c:2757: error: 'struct mtd_info' has no member named 'erase'
fs/yaffs2/yaffs_vfs.c:2757: error: 'struct mtd_info' has no member named 'read'
fs/yaffs2/yaffs_vfs.c:2757: error: 'struct mtd_info' has no member named 'write'
fs/yaffs2/yaffs_vfs.c:2759: error: 'struct mtd_info' has no member named 'read_oob'
fs/yaffs2/yaffs_vfs.c:2759: error: 'struct mtd_info' has no member named 'write_oob'
fs/yaffs2/yaffs_vfs.c:2967: error: implicit declaration of function 'd_alloc_root'
fs/yaffs2/yaffs_vfs.c:2967: warning: assignment makes pointer from integer without a cast
make[2]: *** [fs/yaffs2/yaffs_vfs.o] 错误 1
make[1]: *** [fs/yaffs2] 错误 2

make: *** [fs] 错误 2

出错解决：

1.需要将mtd下的函数前加下划线，例如mtd->read改为mtd->_read（只有yaffs_vfs.c yaffs_mtdif.c yaffs_mtdif1.c yaffs_mtdif2.c这几个文件会出现这种问题）。

2.查看dache.c中这个函数已经改为了d_make_root，将d_alloc_root改为d_make_root。

3.end_writeback(inode)改成clear_inode(inode)

(未验证，貌似不用改，我没改，也照样引导起来了)

Boot Loader By Steven King 2012.8.7
Thanks for the help of 100ask
Starting ......

Copying kernel from nand flash ......
Setting kernel params ......
Booting kernel ......
Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0
Linux version 3.4.6 (root@Jinshi) (gcc version 4.3.2 (Sourcery G++ Lite 2008q3-2
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
CPU: VIVT data cache, VIVT instruction cache
Machine: SMDK2440
Memory policy: ECC disabled, Data cache writeback
CPU S3C2440A (id 0x32440001)
S3C24XX Clocks, Copyright 2004 Simtec Electronics
S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz
CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256
Kernel command line: noinitrd root=/dev/mtdblock2 init=/linuxrc console=ttySAC00
PID hash table entries: 256 (order: -2, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 64MB = 64MB total
Memory: 60108k/60108k available, 5428k reserved, 0K highmem
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
vmalloc : 0xc4800000 - 0xff000000 ( 936 MB)
lowmem : 0xc0000000 - 0xc4000000 ( 64 MB)
modules : 0xbf000000 - 0xc0000000 ( 16 MB)
.text : 0xc0008000 - 0xc043588c (4279 kB)
.init : 0xc0436000 - 0xc045a000 ( 144 kB)
.data : 0xc045a000 - 0xc0487560 ( 182 kB)
.bss : 0xc0487584 - 0xc04af5c8 ( 161 kB)
NR_IRQS:85
irq: clearing subpending status 00000002
sched_clock: 32 bits at 200 Hz, resolution 5000000ns, wraps every 4294967291ms
Console: colour dummy device 80x30
Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
Setting up static identity map for 0x30308aa8 - 0x30308b00
gpiochip_add: registered GPIOs 0 to 23 on device: GPIOA
gpiochip_add: registered GPIOs 32 to 47 on device: GPIOB
gpiochip_add: registered GPIOs 64 to 79 on device: GPIOC
gpiochip_add: registered GPIOs 96 to 111 on device: GPIOD
gpiochip_add: registered GPIOs 128 to 143 on device: GPIOE
gpiochip_add: registered GPIOs 160 to 167 on device: GPIOF
gpiochip_add: registered GPIOs 192 to 207 on device: GPIOG
gpiochip_add: registered GPIOs 224 to 234 on device: GPIOH
gpiochip_add: registered GPIOs 256 to 271 on device: GPIOJ
NET: Registered protocol family 16
S3C Power Management, Copyright 2004 Simtec Electronics
S3C2440: Initialising architecture
S3C2440: IRQ Support
S3C244X: Clock Support, DVS off
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Advanced Linux Sound Architecture Driver Version 1.0.25.
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP: reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
NetWinder Floating Point Emulator V0.97 (extended precision)
jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
ROMFS MTD (C) 2007 Red Hat, Inc.
msgmni has been set to 117
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
Console: switching to colour frame buffer device 30x40
fb0: s3c2410fb frame buffer device
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
s3c2440-uart.0: ttySAC0 at MMIO 0x50000000 (irq = 70) is a S3C2440
console [ttySAC0] enabled
s3c2440-uart.1: ttySAC1 at MMIO 0x50004000 (irq = 73) is a S3C2440
s3c2440-uart.2: ttySAC2 at MMIO 0x50008000 (irq = 76) is a S3C2440
lp: driver loaded but no devices found
ppdev: user-space parallel port driver
brd: module loaded
loop: module loaded
S3C24XX NAND Driver, (c) 2004 Simtec Electronics
s3c24xx-nand s3c2440-nand: Tacls=1, 10ns Twrph0=3 30ns, Twrph1=1 10ns
s3c24xx-nand s3c2440-nand: NAND ECC disabled
NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-b)
NAND_ECC_NONE selected by board driver. This is not recommended!
Scanning device for bad blocks
Creating 3 MTD partitions on "NAND":
0x000000000000-0x000000200000 : "Boot Loader"
0x000000200000-0x000000500000 : "Kernel"
0x000000500000-0x000010000000 : "File System"
dm9000 Ethernet Driver, V1.31
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
s3c2410-ohci s3c2410-ohci: S3C24XX OHCI
s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1
s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
usbcore: registered new interface driver libusual
usbcore: registered new interface driver usbserial
usbcore: registered new interface driver usbserial_generic
USB Serial support registered for generic
usbserial: USB Serial Driver core
usbcore: registered new interface driver ftdi_sio
USB Serial support registered for FTDI USB Serial Device
ftdi_sio: v1.6.0:USB FTDI Serial Converters Driver
usbcore: registered new interface driver pl2303
USB Serial support registered for pl2303
mousedev: PS/2 mouse device common for all mice
s3c2410_wdt: S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq disabled
TCP: cubic registered
NET: Registered protocol family 17
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
ALSA device list:
No soundcards found.
yaffs: dev is 32505858 name is "mtdblock2" rw
yaffs: passed flags ""
VFS: Mounted root (yaffs filesystem) on device 31:2.
Freeing init memory: 144K

Please press Enter to activate this console.
[root@StevenKing /]# ls
bin home lost+found proc sddisk udisk
dev lib mnt root sys usr
etc linuxrc opt sbin tmp var