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-rw-r--r--drivers/ntb/hw/amd/ntb_hw_amd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
index cd463e132035..2859cc99b73e 100644
--- a/drivers/ntb/hw/amd/ntb_hw_amd.c
+++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
@@ -333,7 +333,7 @@ static u64 amd_ntb_db_vector_mask(struct ntb_dev *ntb, int db_vector)
if (db_vector < 0 || db_vector > ndev->db_count)
return 0;
- return ntb_ndev(ntb)->db_valid_mask & (1 << db_vector);
+ return ntb_ndev(ntb)->db_valid_mask & (1ULL << db_vector);
}
static u64 amd_ntb_db_read(struct ntb_dev *ntb)