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    Subject[PATCH 1/3] s390: Expose a constant for the number of words representing the CRs
    Date
    We need to use this value in the checkpoint/restart code and would like to
    have a constant instead of a magic '3'.

    Signed-off-by: Dan Smith <danms@us.ibm.com>
    Cc: linux-s390@vger.kernel.org
    ---
    arch/s390/include/asm/ptrace.h | 2 ++
    arch/s390/kernel/compat_ptrace.h | 3 ++-
    2 files changed, 4 insertions(+), 1 deletions(-)

    diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
    index 5396f9f..d5b0781 100644
    --- a/arch/s390/include/asm/ptrace.h
    +++ b/arch/s390/include/asm/ptrace.h
    @@ -172,6 +172,8 @@
    #define NUM_CRS 16
    #define NUM_ACRS 16

    +#define NUM_CR_WORDS 3
    +
    #define FPR_SIZE 8
    #define FPC_SIZE 4
    #define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */
    diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h
    index a2be3a9..123dd66 100644
    --- a/arch/s390/kernel/compat_ptrace.h
    +++ b/arch/s390/kernel/compat_ptrace.h
    @@ -1,10 +1,11 @@
    #ifndef _PTRACE32_H
    #define _PTRACE32_H

    +#include <asm/ptrace.h> /* needed for NUM_CR_WORDS */
    #include "compat_linux.h" /* needed for psw_compat_t */

    typedef struct {
    - __u32 cr[3];
    + __u32 cr[NUM_CR_WORDS];
    } per_cr_words32;

    typedef struct {
    --
    1.6.1


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