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    SubjectRe: [PATCH 03/10] x86: arch/x86/Kconfig.cpu unification
    On Mon, Nov 05, 2007 at 07:53:39PM -0500, Brian Gerst wrote:
    > Sam Ravnborg wrote:
    > > Move all CPU definitions to Kconfig.cpu
    >
    > This patch causes build failure on x86_64:
    >
    > lib/rwsem.c: In function ‘__init_rwsem’:
    > lib/rwsem.c:24: error: ‘struct rw_semaphore’ has no member named ‘count’
    > lib/rwsem.c:24: error: ‘RWSEM_UNLOCKED_VALUE’ undeclared (first use in
    > this function)
    > lib/rwsem.c:24: error: (Each undeclared identifier is reported only once
    > lib/rwsem.c:24: error: for each function it appears in.)
    > lib/rwsem.c: In function ‘__rwsem_do_wake’:
    > lib/rwsem.c:64: error: implicit declaration of function
    > ‘rwsem_atomic_update’
    > lib/rwsem.c:64: error: ‘RWSEM_ACTIVE_BIAS’ undeclared (first use in this
    > function)
    > lib/rwsem.c:66: error: ‘RWSEM_ACTIVE_MASK’ undeclared (first use in this
    > function)
    > lib/rwsem.c:115: error: ‘RWSEM_WAITING_BIAS’ undeclared (first use in
    > this function)
    > lib/rwsem.c:120: error: implicit declaration of function ‘rwsem_atomic_add’
    > lib/rwsem.c: In function ‘rwsem_down_failed_common’:
    > lib/rwsem.c:169: error: ‘RWSEM_ACTIVE_MASK’ undeclared (first use in
    > this function)
    > lib/rwsem.c: In function ‘rwsem_down_read_failed’:
    > lib/rwsem.c:197: error: ‘RWSEM_WAITING_BIAS’ undeclared (first use in
    > this function)
    > lib/rwsem.c:197: error: ‘RWSEM_ACTIVE_BIAS’ undeclared (first use in
    > this function)
    > lib/rwsem.c: In function ‘rwsem_down_write_failed’:
    > lib/rwsem.c:210: error: ‘RWSEM_ACTIVE_BIAS’ undeclared (first use in
    > this function)
    >
    > git bisect gives:
    > 55432d383871d127685d78f94e0ad60307dcc0e9 is first bad commit
    > commit 55432d383871d127685d78f94e0ad60307dcc0e9
    > Author: Sam Ravnborg <sam@ravnborg.org>
    > Date: Thu Nov 1 21:54:39 2007 +0100
    >
    > x86: arch/x86/Kconfig.cpu unification

    Seems that a default value fail to change value when we shift
    from 32 to 64 bit. I have it reproduced here.
    Will look at it tonight.

    Sam
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