[PATCH] RDMA/efa: Fix node guid compiler warning

Michael Margolin
2024-09-24T12:16:12Z

The GUID is received in big-endian so align types accordingly to avoid
compiler warnings.

Closes: https://lore.kernel.org/oe-kbuild-all/202409032113.bvyVfsNp-lkp@intel.com/

Fixes: 04e36fd27a2a ("RDMA/efa: Add support for node guid")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Yehuda Yitschak <yehuday@amazon.com>
Reviewed-by: Yonatan Nachum <ynachum@amazon.com>
Signed-off-by: Michael Margolin <mrgolin@amazon.com>
---
drivers/infiniband/hw/efa/efa_com_cmd.c | 2 +-
drivers/infiniband/hw/efa/efa_com_cmd.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/efa/efa_com_cmd.c b/drivers/infiniband/hw/efa/efa_com_cmd.c
index 5a774925cdea..5754da4e6ff8 100644
--- a/drivers/infiniband/hw/efa/efa_com_cmd.c
+++ b/drivers/infiniband/hw/efa/efa_com_cmd.c
@@ -465,7 +465,7 @@ int efa_com_get_device_attr(struct efa_com_dev *edev,
result->db_bar = resp.u.device_attr.db_bar;
result->max_rdma_size = resp.u.device_attr.max_rdma_size;
result->device_caps = resp.u.device_attr.device_caps;
- result->guid = resp.u.device_attr.guid;
+ result->guid = (__force __be64)resp.u.device_attr.guid;

if (result->admin_api_version < 1) {
ibdev_err_ratelimited(
diff --git a/drivers/infiniband/hw/efa/efa_com_cmd.h b/drivers/infiniband/hw/efa/efa_com_cmd.h
index 668d033f7477..56382cd1b7c4 100644
--- a/drivers/infiniband/hw/efa/efa_com_cmd.h
+++ b/drivers/infiniband/hw/efa/efa_com_cmd.h
@@ -112,7 +112,7 @@ struct efa_com_get_device_attr_result {
u8 addr[EFA_GID_SIZE];
u64 page_size_cap;
u64 max_mr_pages;
- u64 guid;
+ __be64 guid;
u32 mtu;
u32 fw_version;
u32 admin_api_version;
--
2.40.1