netdev - [net-next 09/15] net/mlx5: DR: Fix incorrect type in return expression

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Date:   Fri, 29 May 2020 21:26:20 -0700
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>, kuba@...nel.org
Cc:     netdev@...r.kernel.org, Saeed Mahameed <saeedm@...lanox.com>,
        Mark Bloch <markb@...lanox.com>
Subject: [net-next 09/15] net/mlx5: DR: Fix incorrect type in return expression

dr_ste_crc32_calc() calculates crc32 and should return it in HW format.
It is being used to calculate a u32 index, hence we force the return value
of u32 to avoid the sparse warning:

drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c:115:16:
warning: incorrect type in return expression (different base types)
    expected unsigned int
    got restricted __be32 [usertype]

Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
Reviewed-by: Mark Bloch <markb@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c
index 4708950166930..00c2f598f034d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c
@@ -112,7 +112,7 @@ static u32 dr_ste_crc32_calc(const void *input_data, size_t length)
 {
 	u32 crc = crc32(0, input_data, length);
 
-	return htonl(crc);
+	return (__force u32)htonl(crc);
 }
 
 u32 mlx5dr_ste_calc_hash_index(u8 *hw_ste_p, struct mlx5dr_ste_htbl *htbl)
-- 
2.26.2