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    SubjectSMP environment driver building issue ...
    Date
    I have loaded RH6.0 to Dell PowerEdge2300 with 2 CPUs.  My driver is
    compiled under UP system. When running 'insmod hpfc', Linux complains that
    the driver module is not for SMP system.

    So I recompiled driver in this SMP system with CFLAG including "__SMP__".
    The driver cannot be comiled due to following errors:

    gcc -c -g -O -D__SMP__ -D__KERNEL__ -DMODULE -DFCLayer_TachyonTL -I../h
    -I../common/h -I/usr/src/linux/include hpfc.c
    /usr/src/linux/include/asm/smp.h: In function `hard_smp_processor_id':
    In file included from /usr/src/linux/include/linux/smp.h:11,
    from /usr/src/linux/include/linux/sched.h:20,
    from /usr/src/linux/include/linux/blkdev.h:5,
    from /usr/src/linux/include/linux/blk.h:4,
    from hpfc.c:81:
    /usr/src/linux/include/asm/smp.h:209: `APIC_BASE' undeclared (first use in
    this function)
    /usr/src/linux/include/asm/smp.h:209: (Each undeclared identifier is
    reported only once
    /usr/src/linux/include/asm/smp.h:209: for each function it appears in.)
    /usr/src/linux/include/asm/smp.h:209: `APIC_ID' undeclared (first use in
    this function)
    hpfc.c: In function `hpfc_DetectHBA':
    hpfc.c:615: warning: passing arg 2 of `request_irq' from incompatible
    pointer type
    hpfc.c: At top level:
    hpfc.c:2259: warning: initialization from incompatible pointer type
    hpfc.c:2259: warning: initialization from incompatible pointer type
    hpfc.c:2259: warning: initialization from incompatible pointer type
    hpfc.c:2259: warning: initialization from incompatible pointer type
    hpfc.c:2259: warning: initialization from incompatible pointer type
    hpfc.c:2259: warning: initialization from incompatible pointer type
    make: *** [hpfc.o] Error 1

    Could anyone help me on this issue please!
    1, To compile a driver with SMP enabled, what flag should be defined?
    2. What else do I need to make driver compiled for SMP?

    Many thanks!

    -eddie

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