linux-kernel - [PATCH] net/mlx5: Fix addr's type in mlx5dr_icm

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Date:   Wed,  4 Sep 2019 19:14:15 -0700
From:   Nathan Chancellor <natechancellor@...il.com>
To:     Saeed Mahameed <saeedm@...lanox.com>,
        Leon Romanovsky <leon@...nel.org>
Cc:     netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com,
        Nathan Chancellor <natechancellor@...il.com>
Subject: [PATCH] net/mlx5: Fix addr's type in mlx5dr_icm_dm

clang errors when CONFIG_PHYS_ADDR_T_64BIT is not set:

drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c:121:8:
error: incompatible pointer types passing 'u64 *' (aka 'unsigned long
long *') to parameter of type 'phys_addr_t *' (aka 'unsigned int *')
[-Werror,-Wincompatible-pointer-types]
                                   &icm_mr->dm.addr, &icm_mr->dm.obj_id);
                                   ^~~~~~~~~~~~~~~~
include/linux/mlx5/driver.h:1092:39: note: passing argument to parameter
'addr' here
                         u64 length, u16 uid, phys_addr_t *addr, u32 *obj_id);
                                                           ^
1 error generated.

Use phys_addr_t for addr's type in mlx5dr_icm_dm, which won't change
anything with 64-bit builds because phys_addr_t is u64 when
CONFIG_PHYS_ADDR_T_64BIT is set, which is always when CONFIG_64BIT is
set.

Fixes: 29cf8febd185 ("net/mlx5: DR, ICM pool memory allocator")
Link: https://github.com/ClangBuiltLinux/linux/issues/653
Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c
index e76f61e7555e..913f1e5aaaf2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c
@@ -53,7 +53,7 @@ struct mlx5dr_icm_pool {
 struct mlx5dr_icm_dm {
 	u32 obj_id;
 	enum mlx5_sw_icm_type type;
-	u64 addr;
+	phys_addr_t addr;
 	size_t length;
 };
 
-- 
2.23.0