lkml.org 
[lkml]   [2008]   [Jan]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH PREEMPT_RT] Compilation fix for PPC
    Date
    Hi,

    2.6.24-rc5-rt1 won't compile on PPC if CONFIG_SMP is turned off.

    CC arch/powerpc/kernel/pmc.o
    In file included from include/asm/tlb.h:62,
    from arch/powerpc/mm/mem.c:44:
    include/asm-generic/tlb.h: In function ‘tlb_gather_mmu’:
    include/asm-generic/tlb.h:58: error: implicit declaration of function ‘__get_cpu_lock’
    include/asm-generic/tlb.h:58: error: ‘mmu_gathers’ undeclared (first use in this function)
    include/asm-generic/tlb.h:58: error: (Each undeclared identifier is reported only once
    include/asm-generic/tlb.h:58: error: for each function it appears in.)
    include/asm-generic/tlb.h:58: error: invalid lvalue in unary ‘&’
    include/asm-generic/tlb.h:58: warning: type defaults to ‘int’ in declaration of ‘type name’
    include/asm-generic/tlb.h:58: error: invalid lvalue in unary ‘&’
    include/asm-generic/tlb.h:58: error: invalid lvalue in unary ‘&’
    include/asm-generic/tlb.h:58: warning: type defaults to ‘int’ in declaration of ‘type name’
    include/asm-generic/tlb.h:58: error: invalid lvalue in unary ‘&’
    include/asm-generic/tlb.h:58: error: implicit declaration of function ‘__get_cpu_var_locked’
    include/asm-generic/tlb.h:58: error: invalid lvalue in unary ‘&’
    include/asm-generic/tlb.h: In function ‘tlb_finish_mmu’:
    include/asm-generic/tlb.h:96: error: ‘mmu_gathers’ undeclared (first use in this function)
    include/asm-generic/tlb.h:96: error: invalid lvalue in unary ‘&’
    include/asm-generic/tlb.h:96: warning: type defaults to ‘int’ in declaration of ‘type name’
    include/asm-generic/tlb.h:96: error: invalid lvalue in unary ‘&’
    include/asm-generic/tlb.h:96: error: invalid lvalue in unary ‘&’
    include/asm-generic/tlb.h:96: warning: type defaults to ‘int’ in declaration of ‘type name’
    include/asm-generic/tlb.h:96: error: invalid lvalue in unary ‘&’

    The patch below fixes it.

    Thanks,
    Sripathi.

    Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com>

    diff -uprN linux-2.6.24-rc5-rt1_org/include/asm-powerpc/percpu.h linux-2.6.24-rc5-rt1/include/asm-powerpc/percpu.h
    --- linux-2.6.24-rc5-rt1_org/include/asm-powerpc/percpu.h 2008-01-12 17:43:03.000000000 +0530
    +++ linux-2.6.24-rc5-rt1/include/asm-powerpc/percpu.h 2008-01-12 17:43:58.000000000 +0530
    @@ -68,6 +68,8 @@ extern void setup_per_cpu_areas(void);

    #define __get_cpu_var(var) per_cpu__##var
    #define __raw_get_cpu_var(var) per_cpu__##var
    +#define __get_cpu_lock(var, cpu) per_cpu_lock__##var##_locked
    +#define __get_cpu_var_locked(var, cpu) per_cpu__##var##_locked

    #endif /* SMP */

    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/
    \
     
     \ /
      Last update: 2008-01-12 19:13    [W:0.024 / U:60.356 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site