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[PATCH] libata: convert assert(xxx)'s in low-level drivers to WARN_ON(!xxx)'s 

This patch converts all assert(xxx)'s in low-level drivers to
WARN_ON(!xxx)'s.  After this patch, there is no in-kernel user of the
libata assert() macro.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Tejun Heo 2006-02-11 19:11:13 +09:00 committed by Jeff Garzik
parent a46314744d
commit beec7dbc6f
4 changed files with 29 additions and 29 deletions
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2
drivers/scsi/ahci.c
View File

@ -714,7 +714,7 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
ci = readl(port_mmio + PORT_CMD_ISSUE);
if (likely((ci & 0x1) == 0)) {
if (qc) {
assert(qc->err_mask == 0);
WARN_ON(qc->err_mask);
ata_qc_complete(qc);
qc = NULL;
}

50
drivers/scsi/sata_mv.c
View File

@ -632,8 +632,8 @@ static void mv_irq_clear(struct ata_port *ap)
* @base: port base address
* @pp: port private data
*
* Verify the local cache of the eDMA state is accurate with an
* assert.
* Verify the local cache of the eDMA state is accurate with a
* WARN_ON.
*
* LOCKING:
* Inherited from caller.
@ -644,15 +644,15 @@ static void mv_start_dma(void __iomem *base, struct mv_port_priv *pp)
writelfl(EDMA_EN, base + EDMA_CMD_OFS);
pp->pp_flags |= MV_PP_FLAG_EDMA_EN;
}
assert(EDMA_EN & readl(base + EDMA_CMD_OFS));
WARN_ON(!(EDMA_EN & readl(base + EDMA_CMD_OFS)));
}
/**
* mv_stop_dma - Disable eDMA engine
* @ap: ATA channel to manipulate
*
* Verify the local cache of the eDMA state is accurate with an
* assert.
* Verify the local cache of the eDMA state is accurate with a
* WARN_ON.
*
* LOCKING:
* Inherited from caller.
@ -670,7 +670,7 @@ static void mv_stop_dma(struct ata_port *ap)
writelfl(EDMA_DS, port_mmio + EDMA_CMD_OFS);
pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN;
} else {
assert(!(EDMA_EN & readl(port_mmio + EDMA_CMD_OFS)));
WARN_ON(EDMA_EN & readl(port_mmio + EDMA_CMD_OFS));
}
/* now properly wait for the eDMA to stop */
@ -1061,15 +1061,15 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
return;
/* the req producer index should be the same as we remember it */
assert(((readl(mv_ap_base(qc->ap) + EDMA_REQ_Q_IN_PTR_OFS) >>
EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) ==
pp->req_producer);
WARN_ON(((readl(mv_ap_base(qc->ap) + EDMA_REQ_Q_IN_PTR_OFS) >>
EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) !=
pp->req_producer);
/* Fill in command request block
*/
if (!(qc->tf.flags & ATA_TFLAG_WRITE))
flags |= CRQB_FLAG_READ;
assert(MV_MAX_Q_DEPTH > qc->tag);
WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
flags |= qc->tag << CRQB_TAG_SHIFT;
pp->crqb[pp->req_producer].sg_addr =
@ -1152,16 +1152,16 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
return;
/* the req producer index should be the same as we remember it */
assert(((readl(mv_ap_base(qc->ap) + EDMA_REQ_Q_IN_PTR_OFS) >>
EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) ==
pp->req_producer);
WARN_ON(((readl(mv_ap_base(qc->ap) + EDMA_REQ_Q_IN_PTR_OFS) >>
EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) !=
pp->req_producer);
/* Fill in Gen IIE command request block
*/
if (!(qc->tf.flags & ATA_TFLAG_WRITE))
flags |= CRQB_FLAG_READ;
assert(MV_MAX_Q_DEPTH > qc->tag);
WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
flags |= qc->tag << CRQB_TAG_SHIFT;
crqb = (struct mv_crqb_iie *) &pp->crqb[pp->req_producer];
@ -1226,12 +1226,12 @@ static unsigned int mv_qc_issue(struct ata_queued_cmd *qc)
in_ptr = readl(port_mmio + EDMA_REQ_Q_IN_PTR_OFS);
/* the req producer index should be the same as we remember it */
assert(((in_ptr >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) ==
pp->req_producer);
WARN_ON(((in_ptr >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) !=
pp->req_producer);
/* until we do queuing, the queue should be empty at this point */
assert(((in_ptr >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) ==
((readl(port_mmio + EDMA_REQ_Q_OUT_PTR_OFS) >>
EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK));
WARN_ON(((in_ptr >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) !=
((readl(port_mmio + EDMA_REQ_Q_OUT_PTR_OFS) >>
EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK));
mv_inc_q_index(&pp->req_producer); /* now incr producer index */
@ -1251,7 +1251,7 @@ static unsigned int mv_qc_issue(struct ata_queued_cmd *qc)
*
* This routine is for use when the port is in DMA mode, when it
* will be using the CRPB (command response block) method of
* returning command completion information. We assert indices
* returning command completion information. We check indices
* are good, grab status, and bump the response consumer index to
* prove that we're up to date.
*
@ -1267,16 +1267,16 @@ static u8 mv_get_crpb_status(struct ata_port *ap)
out_ptr = readl(port_mmio + EDMA_RSP_Q_OUT_PTR_OFS);
/* the response consumer index should be the same as we remember it */
assert(((out_ptr >> EDMA_RSP_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) ==
pp->rsp_consumer);
WARN_ON(((out_ptr >> EDMA_RSP_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) !=
pp->rsp_consumer);
/* increment our consumer index... */
pp->rsp_consumer = mv_inc_q_index(&pp->rsp_consumer);
/* and, until we do NCQ, there should only be 1 CRPB waiting */
assert(((readl(port_mmio + EDMA_RSP_Q_IN_PTR_OFS) >>
EDMA_RSP_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) ==
pp->rsp_consumer);
WARN_ON(((readl(port_mmio + EDMA_RSP_Q_IN_PTR_OFS) >>
EDMA_RSP_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK) !=
pp->rsp_consumer);
/* write out our inc'd consumer index so EDMA knows we're caught up */
out_ptr &= EDMA_RSP_Q_BASE_LO_MASK;

4
drivers/scsi/sata_qstor.c
View File

@ -277,8 +277,8 @@ static unsigned int qs_fill_sg(struct ata_queued_cmd *qc)
unsigned int nelem;
u8 *prd = pp->pkt + QS_CPB_BYTES;
assert(qc->__sg != NULL);
assert(qc->n_elem > 0);
WARN_ON(qc->__sg == NULL);
WARN_ON(qc->n_elem == 0);
nelem = 0;
ata_for_each_sg(sg, qc) {

2
drivers/scsi/sata_sx4.c
View File

@ -461,7 +461,7 @@ static void pdc20621_dma_prep(struct ata_queued_cmd *qc)
unsigned int i, idx, total_len = 0, sgt_len;
u32 *buf = (u32 *) &pp->dimm_buf[PDC_DIMM_HEADER_SZ];
assert(qc->flags & ATA_QCFLAG_DMAMAP);
WARN_ON(!(qc->flags & ATA_QCFLAG_DMAMAP));
VPRINTK("ata%u: ENTER\n", ap->id);