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    SubjectRe: [PATCH 3/6] drivers: hv: Cleanup the kvp related state in hyperv.h
    On Fri, Jan 27, 2012 at 03:55:59PM -0800, K. Y. Srinivasan wrote:
    > Now cleanup the hyperv.h with regards to KVP definitions.
    >
    > Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
    > Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
    > include/linux/hyperv.h | 32 +++++++++++++++++++-------------
    > 1 files changed, 19 insertions(+), 13 deletions(-)
    >
    > diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
    > index 7332b3f..802ece8 100644
    > --- a/include/linux/hyperv.h
    > +++ b/include/linux/hyperv.h
    > @@ -137,7 +137,6 @@ struct hv_ku_msg {
    >
    >
    >
    > -#ifdef __KERNEL__
    >
    > /*
    > * Registry value types.
    > @@ -162,29 +161,36 @@ enum hv_kvp_exchg_pool {
    > KVP_POOL_COUNT /* Number of pools, must be last. */
    > };
    >
    > +#ifndef __packed
    > +#define __packed __attribute__((packed))
    > +#endif

    Why do this?

    If you are so worried about this in userspace, then just change the
    values below to __attribute__((packed)), like all of the other public .h
    files do.

    thanks,

    greg k-h


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