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authorJason Gunthorpe <jgg@mellanox.com>2020-02-06 10:27:54 -0400
committerJason Gunthorpe <jgg@mellanox.com>2020-02-14 15:21:52 -0400
commit685eff513183d6d64a5f413531e683d23b8b198b (patch)
tree4c3b049589552db543cc1e45ea34743f51f93a35 /drivers/infiniband/hw
parentRDMA/core: Fix protection fault in get_pkey_idx_qp_list (diff)
downloadlinux-dev-685eff513183d6d64a5f413531e683d23b8b198b.tar.xz
linux-dev-685eff513183d6d64a5f413531e683d23b8b198b.zip
IB/mlx5: Use div64_u64 for num_var_hw_entries calculation
On i386: ERROR: "__udivdi3" [drivers/infiniband/hw/mlx5/mlx5_ib.ko] undefined! ERROR: "__divdi3" [drivers/infiniband/hw/mlx5/mlx5_ib.ko] undefined! Fixes: f164be8c0366 ("IB/mlx5: Extend caps stage to handle VAR capabilities") Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Reported-by: Alexander Lobakin <alobakin@dlink.ru> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw')
-rw-r--r--drivers/infiniband/hw/mlx5/main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 987bfdcd12a5..e4bcfa81b70a 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -6545,7 +6545,7 @@ static int mlx5_ib_init_var_table(struct mlx5_ib_dev *dev)
doorbell_bar_offset);
bar_size = (1ULL << log_doorbell_bar_size) * 4096;
var_table->stride_size = 1ULL << log_doorbell_stride;
- var_table->num_var_hw_entries = bar_size / var_table->stride_size;
+ var_table->num_var_hw_entries = div64_u64(bar_size, var_table->stride_size);
mutex_init(&var_table->bitmap_lock);
var_table->bitmap = bitmap_zalloc(var_table->num_var_hw_entries,
GFP_KERNEL);