Commit 07fd45564be5acb2667ab76d8c075886377928a5 upstream. The mlx5 driver passes a string pointer in through a 'u64' variable, which on 32-bit machines causes a build warning: drivers/net/ethernet/mellanox/mlx5/core/debugfs.c: In function 'qp_read_field': drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:303:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] The code is in fact safe, so we can shut up the warning by adding extra type casts. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/net/ethernet/mellanox/mlx5/core/debugfs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c index 10e1f1a18255..4878025e231c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c @@ -300,11 +300,11 @@ static u64 qp_read_field(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp, param = qp->pid; break; case QP_STATE: - param = (u64)mlx5_qp_state_str(be32_to_cpu(ctx->flags) >> 28); + param = (unsigned long)mlx5_qp_state_str(be32_to_cpu(ctx->flags) >> 28); *is_str = 1; break; case QP_XPORT: - param = (u64)mlx5_qp_type_str((be32_to_cpu(ctx->flags) >> 16) & 0xff); + param = (unsigned long)mlx5_qp_type_str((be32_to_cpu(ctx->flags) >> 16) & 0xff); *is_str = 1; break; case QP_MTU: @@ -464,7 +464,7 @@ static ssize_t dbg_read(struct file *filp, char __user *buf, size_t count, if (is_str) - ret = snprintf(tbuf, sizeof(tbuf), "%s\n", (const char *)field); + ret = snprintf(tbuf, sizeof(tbuf), "%s\n", (const char *)(unsigned long)field); else ret = snprintf(tbuf, sizeof(tbuf), "0x%llx\n", field); -- 2.9.0