linux-next: build failure after merge of the cifs tree

[Stephen Rothwell <sfr@canb.auug.org.au>]

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Hi all,

After merging the cifs tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

net/dns_resolver/dns_key.c: In function 'dns_resolver_instantiate':
net/dns_resolver/dns_key.c:70: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c:70: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c:99: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c:128: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c:136: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c:143: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c:144: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c:149: error: implicit declaration of function 'key_payload_reserve'
net/dns_resolver/dns_key.c:162: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c: In function 'dns_resolver_match':
net/dns_resolver/dns_key.c:178: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c: In function 'dns_resolver_describe':
net/dns_resolver/dns_key.c:211: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c:213: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c:217: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_key.c: At top level:
net/dns_resolver/dns_key.c:220: error: variable 'key_type_dns_resolver' has initializer but incomplete type
net/dns_resolver/dns_key.c:221: error: unknown field 'name' specified in initializer
net/dns_resolver/dns_key.c:221: warning: excess elements in struct initializer
net/dns_resolver/dns_key.c:221: warning: (near initialization for 'key_type_dns_resolver')
net/dns_resolver/dns_key.c:222: error: unknown field 'instantiate' specified in initializer
net/dns_resolver/dns_key.c:222: warning: excess elements in struct initializer
net/dns_resolver/dns_key.c:222: warning: (near initialization for 'key_type_dns_resolver')
net/dns_resolver/dns_key.c:223: error: unknown field 'match' specified in initializer
net/dns_resolver/dns_key.c:223: warning: excess elements in struct initializer
net/dns_resolver/dns_key.c:223: warning: (near initialization for 'key_type_dns_resolver')
net/dns_resolver/dns_key.c:224: error: unknown field 'revoke' specified in initializer
net/dns_resolver/dns_key.c:224: warning: excess elements in struct initializer
net/dns_resolver/dns_key.c:224: warning: (near initialization for 'key_type_dns_resolver')
net/dns_resolver/dns_key.c:225: error: unknown field 'destroy' specified in initializer
net/dns_resolver/dns_key.c:225: warning: excess elements in struct initializer
net/dns_resolver/dns_key.c:225: warning: (near initialization for 'key_type_dns_resolver')
net/dns_resolver/dns_key.c:226: error: unknown field 'describe' specified in initializer
net/dns_resolver/dns_key.c:226: warning: excess elements in struct initializer
net/dns_resolver/dns_key.c:226: warning: (near initialization for 'key_type_dns_resolver')
net/dns_resolver/dns_key.c:227: error: unknown field 'read' specified in initializer
net/dns_resolver/dns_key.c:227: warning: excess elements in struct initializer
net/dns_resolver/dns_key.c:227: warning: (near initialization for 'key_type_dns_resolver')
net/dns_resolver/dns_key.c: In function 'init_dns_resolver':
net/dns_resolver/dns_key.c:237: error: invalid use of undefined type 'struct key_type'
net/dns_resolver/dns_key.c:249: error: implicit declaration of function 'key_alloc'
net/dns_resolver/dns_key.c:249: error: 'key_type_keyring' undeclared (first use in this function)
net/dns_resolver/dns_key.c:249: error: (Each undeclared identifier is reported only once
net/dns_resolver/dns_key.c:249: error: for each function it appears in.)
net/dns_resolver/dns_key.c:250: error: 'KEY_POS_ALL' undeclared (first use in this function)
net/dns_resolver/dns_key.c:250: error: 'KEY_POS_SETATTR' undeclared (first use in this function)
net/dns_resolver/dns_key.c:251: error: 'KEY_USR_VIEW' undeclared (first use in this function)
net/dns_resolver/dns_key.c:251: error: 'KEY_USR_READ' undeclared (first use in this function)
net/dns_resolver/dns_key.c:252: error: 'KEY_ALLOC_NOT_IN_QUOTA' undeclared (first use in this function)
net/dns_resolver/dns_key.c:258: error: implicit declaration of function 'key_instantiate_and_link'
net/dns_resolver/dns_key.c:262: error: implicit declaration of function 'register_key_type'
net/dns_resolver/dns_key.c:268: error: 'struct cred' has no member named 'thread_keyring'
net/dns_resolver/dns_key.c:269: error: 'struct cred' has no member named 'jit_keyring'
net/dns_resolver/dns_key.c: In function 'exit_dns_resolver':
net/dns_resolver/dns_key.c:285: error: implicit declaration of function 'unregister_key_type'
net/dns_resolver/dns_key.c:288: error: invalid use of undefined type 'struct key_type'
net/dns_resolver/dns_query.c: In function 'dns_query':
net/dns_resolver/dns_query.c:124: error: implicit declaration of function 'request_key'
net/dns_resolver/dns_query.c:124: warning: assignment makes pointer from integer without a cast
net/dns_resolver/dns_query.c:132: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_query.c:133: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_query.c:133: error: 'KEY_USR_VIEW' undeclared (first use in this function)
net/dns_resolver/dns_query.c:133: error: (Each undeclared identifier is reported only once
net/dns_resolver/dns_query.c:133: error: for each function it appears in.)
net/dns_resolver/dns_query.c:140: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_query.c:144: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_query.c:155: error: dereferencing pointer to incomplete type
net/dns_resolver/dns_query.c:159: error: dereferencing pointer to incomplete type

Presumably this code has not been built on powerpc before.  Casued by
commit 1a4240f4764ac78adbf4b0ebb49b3bd8c72ffa11 ("DNS: Separate out CIFS
DNS Resolver code") (and the build was probably enabled by commit
c2e8139c9f797baa46515af6d350c51823736cbb ("NFS: Use kernel DNS resolver
[ver #2]").

I can only imagine that linux/key.h is included indirectly on x86.

I have used the version of cifs tree from next-20100811 for today.
-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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