Commit 1e590dec authored by Dan Carpenter's avatar Dan Carpenter Committed by Jon Mason

NTB: amd: Silence shift wrapping warning in amd_ntb_db_vector_mask()

This code triggers a Smatch warning:

    drivers/ntb/hw/amd/ntb_hw_amd.c:336 amd_ntb_db_vector_mask()
    warn: should '(1 << db_vector)' be a 64 bit type?

I don't think "db_vector" can be higher than 16 so this doesn't affect
runtime, but it's nice to silence the static checker warning and we
might increase "ndev->db_count" in the future.
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Acked-by: default avatarShyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: default avatarJon Mason <jdmason@kudzu.us>
parent ff148d8a
......@@ -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)
......
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