Subject: backward compatibility From: Gerd Hoffmann Patch-mainline: obsolete --- linux-2.6-xen-sparse/drivers/xen/blkback/xenbus.c | 6 ++++++ linux-2.6-xen-sparse/drivers/xen/blktap/xenbus.c | 6 ++++++ 2 files changed, 12 insertions(+) --- head-2010-11-25.orig/drivers/xen/blkback/xenbus.c 2010-11-22 13:10:22.000000000 +0100 +++ head-2010-11-25/drivers/xen/blkback/xenbus.c 2010-11-25 10:57:03.000000000 +0100 @@ -506,6 +506,12 @@ static int connect_ring(struct backend_i be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_32; else if (0 == strcmp(protocol, XEN_IO_PROTO_ABI_X86_64)) be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_64; +#if 1 /* maintain compatibility with early sles10-sp1 and paravirt netware betas */ + else if (0 == strcmp(protocol, "1")) + be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_32; + else if (0 == strcmp(protocol, "2")) + be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_64; +#endif else { xenbus_dev_fatal(dev, err, "unknown fe protocol %s", protocol); return -1; --- head-2010-11-25.orig/drivers/xen/blktap/xenbus.c 2010-11-25 10:28:23.000000000 +0100 +++ head-2010-11-25/drivers/xen/blktap/xenbus.c 2010-11-25 10:57:00.000000000 +0100 @@ -457,6 +457,12 @@ static int connect_ring(struct backend_i be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_32; else if (0 == strcmp(protocol, XEN_IO_PROTO_ABI_X86_64)) be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_64; +#if 1 /* maintain compatibility with early sles10-sp1 and paravirt netware betas */ + else if (0 == strcmp(protocol, "1")) + be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_32; + else if (0 == strcmp(protocol, "2")) + be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_64; +#endif else { xenbus_dev_fatal(dev, err, "unknown fe protocol %s", protocol); return -1;