IB/ipath: Use unsigned long for irq flags

A few functions in the ipath driver incorrectly use unsigned int to
hold irq flags for spin_lock_irqsave().

This patch was generated using the Coccinelle framework with the
following semantic patch:

The semantic patch I used was this:

@@
expression lock;
identifier flags;
expression subclass;
@@

- unsigned int flags;
+ unsigned long flags;

...

<+...

(
spin_lock_irqsave(lock, flags)
|
_spin_lock_irqsave(lock)
|
spin_unlock_irqrestore(lock, flags)
|
_spin_unlock_irqrestore(lock, flags)
|
read_lock_irqsave(lock, flags)
|
_read_lock_irqsave(lock)
|
read_unlock_irqrestore(lock, flags)
|
_read_unlock_irqrestore(lock, flags)
|
write_lock_irqsave(lock, flags)
|
_write_lock_irqsave(lock)
|
write_unlock_irqrestore(lock, flags)
|
_write_unlock_irqrestore(lock, flags)
|
spin_lock_irqsave_nested(lock, flags, subclass)
|
_spin_lock_irqsave_nested(lock, subclass)
|
spin_unlock_irqrestore(lock, flags)
|
_spin_unlock_irqrestore(lock, flags)
|
_raw_spin_lock_flags(lock, flags)
|
__raw_spin_lock_flags(lock, flags)
)

...+>

Cc: Ralph Campbell <[e-mail]>
Cc: Julia Lawall <[e-mail]>
Cc: Alexey Dobriyan <[e-mail]>
Signed-off-by: Vegard Nossum <[e-mail]>
Signed-off-by: Roland Dreier <[e-mail]>

drivers/infiniband/hw/ipath/ipath_verbs.c

···
 	struct ipath_verbs_txreq *tx = cookie;
 	struct ipath_qp *qp = tx->qp;
 	struct ipath_ibdev *dev = to_idev(qp->ibqp.device);
-	unsigned int flags;
+	unsigned long flags;
 	enum ib_wc_status ibs = status == IPATH_SDMA_TXREQ_S_OK ?
 		IB_WC_SUCCESS : IB_WC_WR_FLUSH_ERR;
 
···
 
 static void decrement_dma_busy(struct ipath_qp *qp)
 {
-	unsigned int flags;
+	unsigned long flags;
 
 	if (atomic_dec_and_test(&qp->s_dma_busy)) {
 		spin_lock_irqsave(&qp->s_lock, flags);
···
 	unsigned flush_wc;
 	u32 control;
 	int ret;
-	unsigned int flags;
+	unsigned long flags;
 
 	piobuf = ipath_getpiobuf(dd, plen, NULL);
 	if (unlikely(piobuf == NULL)) {