4.18-stable review patch. If anyone has any objections, please let me know.
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From: Bart Van Assche bart.vanassche@wdc.com
[ Upstream commit 4eefd62c17a9a5e7576207e84f3d2b4f73aba750 ]
IB_MULTICAST_LID_BASE is defined as follows:
#define IB_MULTICAST_LID_BASE cpu_to_be16(0xC000)
Hence use be16_to_cpu() to convert it to CPU endianness. Compile-tested only.
Fixes: af808ece5ce9 ("IB/SA: Check dlid before SA agent queries for ClassPortInfo") Signed-off-by: Bart Van Assche bart.vanassche@wdc.com Cc: Venkata Sandeep Dhanalakota venkata.s.dhanalakota@intel.com Cc: Mike Marciniszyn mike.marciniszyn@intel.com Cc: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/rdma/opa_addr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/rdma/opa_addr.h +++ b/include/rdma/opa_addr.h @@ -120,7 +120,7 @@ static inline bool rdma_is_valid_unicast if (attr->type == RDMA_AH_ATTR_TYPE_IB) { if (!rdma_ah_get_dlid(attr) || rdma_ah_get_dlid(attr) >= - be32_to_cpu(IB_MULTICAST_LID_BASE)) + be16_to_cpu(IB_MULTICAST_LID_BASE)) return false; } else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) { if (!rdma_ah_get_dlid(attr) ||