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mlx5: Fix sparse warnings 

1. Add required __acquire/__release statements to balance spinlock usage.
2. Change the index parameter of begin_wqe() to be unsigned to match supplied
argument type.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eli Cohen 2014-12-02 12:26:18 +02:00 committed by David S. Miller
parent 28c167fa8f
commit 6a4f139aae
1 changed files with 15 additions and 1 deletions
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16
drivers/infiniband/hw/mlx5/qp.c
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@ -1011,9 +1011,14 @@ static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv
}
} else {
spin_lock_irq(&send_cq->lock);
__acquire(&recv_cq->lock);
}
} else if (recv_cq) {
spin_lock_irq(&recv_cq->lock);
__acquire(&send_cq->lock);
} else {
__acquire(&send_cq->lock);
__acquire(&recv_cq->lock);
}
}
@ -1033,10 +1038,15 @@ static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *re
spin_unlock_irq(&recv_cq->lock);
}
} else {
__release(&recv_cq->lock);
spin_unlock_irq(&send_cq->lock);
}
} else if (recv_cq) {
__release(&send_cq->lock);
spin_unlock_irq(&recv_cq->lock);
} else {
__release(&recv_cq->lock);
__release(&send_cq->lock);
}
}
@ -2411,7 +2421,7 @@ static u8 get_fence(u8 fence, struct ib_send_wr *wr)
static int begin_wqe(struct mlx5_ib_qp *qp, void **seg,
struct mlx5_wqe_ctrl_seg **ctrl,
struct ib_send_wr *wr, int *idx,
struct ib_send_wr *wr, unsigned *idx,
int *size, int nreq)
{
int err = 0;
@ -2737,6 +2747,8 @@ out:
if (bf->need_lock)
spin_lock(&bf->lock);
else
__acquire(&bf->lock);
/* TBD enable WC */
if (0 && nreq == 1 && bf->uuarn && inl && size > 1 && size <= bf->buf_size / 16) {
@ -2753,6 +2765,8 @@ out:
bf->offset ^= bf->buf_size;
if (bf->need_lock)
spin_unlock(&bf->lock);
else
__release(&bf->lock);
}
spin_unlock_irqrestore(&qp->sq.lock, flags);