freebsd stable - May 2012 - Stable buildkernel warning: no previous prototype for legacy_pcib_map_msi

I'm running stable that I built 1/12/12 on an amd64 system and I just
updated
the sources and now every time I try to compile the kernel I get the error:

====================cc1: warnings being treated as errors
/usr/src/sys/x86/pci/pci_bus.c:118: warning: no previous prototype for
'legacy_pcib_map_msi' [-Wmissing-prototypes]
/usr/src/sys/x86/pci/pci_bus.c: In function 'legacy_pcib_map_msi':
/usr/src/sys/x86/pci/pci_bus.c:127: warning: implicit declaration of
function 'legacy_get_pcislot'
/usr/src/sys/x86/pci/pci_bus.c:127: warning: nested extern declaration of
'legacy_get_pcislot' [-Wnested-externs]
/usr/src/sys/x86/pci/pci_bus.c:128: warning: implicit declaration of
function 'legacy_get_pcifunc'
/usr/src/sys/x86/pci/pci_bus.c:128: warning: nested extern declaration of
'legacy_get_pcifunc' [-Wnested-externs]
/usr/src/sys/x86/pci/pci_bus.c: In function 'legacy_pcib_identify':
/usr/src/sys/x86/pci/pci_bus.c:470: warning: implicit declaration of
function 'legacy_set_pcislot'
/usr/src/sys/x86/pci/pci_bus.c:470: warning: nested extern declaration of
'legacy_set_pcislot' [-Wnested-externs]
/usr/src/sys/x86/pci/pci_bus.c:471: warning: implicit declaration of
function 'legacy_set_pcifunc'
/usr/src/sys/x86/pci/pci_bus.c:471: warning: nested extern declaration of
'legacy_set_pcifunc' [-Wnested-externs]
*** Error code 1

Stop in /usr/obj/usr/src/sys/ICKERN.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
====================
I have tried both my custom kernel config and the generic config with the
same errror. My src.conf only has the line

LOADER_ZFS_SUPPORT="YES"

and my make.conf has

WRKDIRPREFIX=/usr/obj
NOPORTDOCS="YES"
WITHOUT_CUPS="YES"
WITH_NEW_XORG="YES"
WITH_VIM_OPTIONS="YES"
# added by use.perl 2012-02-15 23:09:33
PERL_VERSION=5.12.4

If it makes any difference, my current kernel does not have COMPAT_FREEBSD32
enable, however enabling and disabling this option still caused this error.
Anyone have any advice?


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I discovered that my copy of src/sys/amd64/include/legacyvar.h does not
include the two lines

60| int legacy_pcib_map_msi(device_t pcib, device_t dev, int irq,
61|  	uint64_t *addr, uint32_t *data);

which is in the stable sources available through svn at
http://svnweb.freebsd.org/base/stable/9/sys/amd64/include/legacyvar.h?revision=234150&view=markup&pathrev=234872.
I guess I have a bad mirror or something...

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