newbie kernel compilation problems: mtd_pm_callback undefined

Hi!

I still don't have a serial cable, so I tried to compile a kernel to
boot via haret.
I downloaded linux/kernel26 from cvs.handhelds.org and ran:

export PATH=/usr/local/arm/3.4.1/bin:$PATH
make hx4700_defconfig
make

This left me with a zImage, some modules and the following warnings:

fs/jffs2/fs.c: In function `jffs2_flash_setup':
fs/jffs2/fs.c:671: warning: implicit declaration of function
`jffs2_dataflash_setup'
fs/jffs2/fs.c: In function `jffs2_flash_cleanup':
fs/jffs2/fs.c:692: warning: implicit declaration of function
`jffs2_dataflash_cleanup'
fs/jffs3/summary.c: In function `jffs3_sum_scan_sumnode':
fs/jffs3/summary.c:399: warning: ISO C90 forbids mixed declarations and code
fs/smbfs/proc.c: In function `smb_proc_setattr_unix':
fs/smbfs/proc.c:3110: warning: large integer implicitly truncated to
unsigned type
fs/smbfs/proc.c:3110: warning: large integer implicitly truncated to
unsigned type
fs/smbfs/proc.c:3111: warning: large integer implicitly truncated to
unsigned type
fs/smbfs/proc.c:3111: warning: large integer implicitly truncated to
unsigned type
fs/smbfs/proc.c:3112: warning: large integer implicitly truncated to
unsigned type
fs/smbfs/proc.c:3112: warning: large integer implicitly truncated to
unsigned type
fs/smbfs/proc.c:3113: warning: large integer implicitly truncated to
unsigned type
fs/smbfs/proc.c:3113: warning: large integer implicitly truncated to
unsigned type
fs/smbfs/proc.c:3114: warning: large integer implicitly truncated to
unsigned type
fs/smbfs/proc.c:3114: warning: large integer implicitly truncated to
unsigned type
drivers/char/keyboard.c:1007:2: warning: #warning "Cannot generate
rawmode keyboard for your architecture yet."
drivers/char/vt.c: In function `vc_allocate':
drivers/char/vt.c:747: warning: `pm_register' is deprecated (declared
at include/linux/pm.h:106)
drivers/input/mouse/navpoint.c:41: warning: 'navpoint_report_features'
defined but not used
drivers/mtd/mtdcore.c: In function `init_mtd':
drivers/mtd/mtdcore.c:393: warning: `pm_register' is deprecated
(declared at include/linux/pm.h:106)
drivers/mtd/mtdcore.c: In function `cleanup_mtd':
drivers/mtd/mtdcore.c:402: warning: `pm_unregister' is deprecated
(declared at include/linux/pm.h:111)
drivers/mtd/chips/cfi_cmdset_0001.c: In function `cfi_intelext_init':
drivers/mtd/chips/cfi_cmdset_0001.c:2310: warning:
`inter_module_register' is deprecated (declared at
include/linux/module.h:573)
drivers/mtd/chips/cfi_cmdset_0001.c:2311: warning:
`inter_module_register' is deprecated (declared at
include/linux/module.h:573)
drivers/mtd/chips/cfi_cmdset_0001.c: In function `cfi_intelext_exit':
drivers/mtd/chips/cfi_cmdset_0001.c:2317: warning:
`inter_module_unregister' is deprecated (declared at
include/linux/module.h:574)
drivers/mtd/chips/cfi_cmdset_0001.c:2318: warning:
`inter_module_unregister' is deprecated (declared at
include/linux/module.h:574)
drivers/mtd/chips/cfi_cmdset_0001.c: At top level:
drivers/mtd/chips/cfi_cmdset_0001.c:57: warning:
'cfi_intelext_read_fact_prot_reg' declared `static' but never defined
drivers/mtd/chips/cfi_cmdset_0001.c:58: warning:
'cfi_intelext_read_user_prot_reg' declared `static' but never defined
drivers/mtd/chips/cfi_cmdset_0001.c:59: warning:
'cfi_intelext_write_user_prot_reg' declared `static' but never defined
drivers/mtd/chips/cfi_cmdset_0001.c:60: warning:
'cfi_intelext_lock_user_prot_reg' declared `static' but never defined
drivers/mtd/chips/cfi_cmdset_0001.c:62: warning:
'cfi_intelext_get_fact_prot_info' declared `static' but never defined
drivers/mtd/chips/cfi_cmdset_0001.c:64: warning:
'cfi_intelext_get_user_prot_info' declared `static' but never defined
drivers/mtd/chips/gen_probe.c: In function `cfi_cmdset_unknown':
drivers/mtd/chips/gen_probe.c:210: warning: `inter_module_put' is
deprecated (declared at include/linux/module.h:578)
drivers/video/fbmem.c: In function `fb_blank':
drivers/video/fbmem.c:753: warning: unused variable `event'
sound/core/init.c: In function `snd_card_set_dev_pm_callback':
sound/core/init.c:772: warning: `pm_register' is deprecated (declared
at include/linux/pm.h:106)
sound/core/memory.c: In function `copy_from_user_toio':
sound/core/memory.c:299: warning: passing arg 1 of `_memcpy_toio'
discards qualifiers from pointer target type
*** Warning: "mtd_pm_callback"
[arch/arm/mach-pxa/hx4700/hx4700_core.ko] undefined!

After replacing zImage and the modules in the latest starterkit with
their counterparts from this compilation the ipaq sort of booted into
opie, but it couldn't load some modules:

hx4700_core: Unknown symbol hx4700_unlock_flash
hx4700_pcmcia: Unknown symbol hx4700_egpio_enable

So bluetooth and cf don't work.
When I touch the navpoint the driver spills buffer overflow warnings.
Is there something I have done obviously wrong?
Is there a different kernel config I should use?

--
pHilipp