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Drivers: hv: util: Properly handle version negotiations.

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The current version negotiation code is not "future proof". Fix this
by allowing each service the flexibility to either specify the highest
version it can support or it can support the highest version number
the host is offering.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan
2012-05-12 13:44:58 -07:00
committed by Greg Kroah-Hartman
parent a360530012
commit c836d0ab70
4 changed files with 49 additions and 21 deletions
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4
include/linux/hyperv.h
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@@ -1035,8 +1035,10 @@ struct hyperv_service_callback {
void (*callback) (void *context);
};
#define MAX_SRV_VER 0x7ffffff
extern void vmbus_prep_negotiate_resp(struct icmsg_hdr *,
struct icmsg_negotiate *, u8 *);
struct icmsg_negotiate *, u8 *, int,
int);
int hv_kvp_init(struct hv_util_service *);
void hv_kvp_deinit(void);