From a46314744d8fadb91451bf2e5d2fd949c4a752d8 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 11 Feb 2006 19:11:13 +0900 Subject: [PATCH] [PATCH] libata: convert assert(X)'s in libata core layer to WARN_ON(!X)'s In an effort to kill libata-specific assert() and use generic WARN_ON(), this patch converts all assert(X)'s in libata core layer to WARN_ON(!X)'s. Most conversions are straight-forward logical negation exception for the followings. * In libata-core.c:ata_fill_sg(), assert(qc->n_elem > 0) is converted to WARN_ON(qc->n_elem == 0) because qc->n_elem is unsigned and unsigned <= 0 is weird. * In libata-scsi.c:ata_gen_ata_desc/fixed_sense(), assert(NULL != qc->ap->ops->tf_read) is converted to WARN_ON(qc->ap->ops->tf_read == NULL), as there are no other users of 'constant cond var' style in libata. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 46 +++++++++++++++++++------------------- drivers/scsi/libata-scsi.c | 14 ++++++------ 2 files changed, 30 insertions(+), 30 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index fffbaa9dae..cef85e515c 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -904,8 +904,8 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device) DPRINTK("ENTER, host %u, dev %u\n", ap->id, device); - assert (dev->class == ATA_DEV_ATA || dev->class == ATA_DEV_ATAPI || - dev->class == ATA_DEV_NONE); + WARN_ON(dev->class != ATA_DEV_ATA && dev->class != ATA_DEV_ATAPI && + dev->class != ATA_DEV_NONE); ata_dev_select(ap, device, 1, 1); /* select device 0/1 */ @@ -2301,7 +2301,7 @@ static unsigned int ata_get_mode_mask(const struct ata_port *ap, int shift) master = &ap->device[0]; slave = &ap->device[1]; - assert (ata_dev_present(master) || ata_dev_present(slave)); + WARN_ON(!ata_dev_present(master) && !ata_dev_present(slave)); if (shift == ATA_SHIFT_UDMA) { mask = ap->udma_mask; @@ -2547,11 +2547,11 @@ static void ata_sg_clean(struct ata_queued_cmd *qc) int dir = qc->dma_dir; void *pad_buf = NULL; - assert(qc->flags & ATA_QCFLAG_DMAMAP); - assert(sg != NULL); + WARN_ON(!(qc->flags & ATA_QCFLAG_DMAMAP)); + WARN_ON(sg == NULL); if (qc->flags & ATA_QCFLAG_SINGLE) - assert(qc->n_elem == 1); + WARN_ON(qc->n_elem != 1); VPRINTK("unmapping %u sg elements\n", qc->n_elem); @@ -2606,8 +2606,8 @@ static void ata_fill_sg(struct ata_queued_cmd *qc) struct scatterlist *sg; unsigned int idx; - assert(qc->__sg != NULL); - assert(qc->n_elem > 0); + WARN_ON(qc->__sg == NULL); + WARN_ON(qc->n_elem == 0); idx = 0; ata_for_each_sg(sg, qc) { @@ -2759,7 +2759,7 @@ static int ata_sg_setup_one(struct ata_queued_cmd *qc) void *pad_buf = ap->pad + (qc->tag * ATA_DMA_PAD_SZ); struct scatterlist *psg = &qc->pad_sgent; - assert(qc->dev->class == ATA_DEV_ATAPI); + WARN_ON(qc->dev->class != ATA_DEV_ATAPI); memset(pad_buf, 0, ATA_DMA_PAD_SZ); @@ -2821,7 +2821,7 @@ static int ata_sg_setup(struct ata_queued_cmd *qc) int n_elem, pre_n_elem, dir, trim_sg = 0; VPRINTK("ENTER, ata%u\n", ap->id); - assert(qc->flags & ATA_QCFLAG_SG); + WARN_ON(!(qc->flags & ATA_QCFLAG_SG)); /* we must lengthen transfers to end on a 32-bit boundary */ qc->pad_len = lsg->length & 3; @@ -2830,7 +2830,7 @@ static int ata_sg_setup(struct ata_queued_cmd *qc) struct scatterlist *psg = &qc->pad_sgent; unsigned int offset; - assert(qc->dev->class == ATA_DEV_ATAPI); + WARN_ON(qc->dev->class != ATA_DEV_ATAPI); memset(pad_buf, 0, ATA_DMA_PAD_SZ); @@ -2924,7 +2924,7 @@ static unsigned long ata_pio_poll(struct ata_port *ap) unsigned int reg_state = HSM_ST_UNKNOWN; qc = ata_qc_from_tag(ap, ap->active_tag); - assert(qc != NULL); + WARN_ON(qc == NULL); switch (ap->hsm_task_state) { case HSM_ST: @@ -2992,7 +2992,7 @@ static int ata_pio_complete (struct ata_port *ap) } qc = ata_qc_from_tag(ap, ap->active_tag); - assert(qc != NULL); + WARN_ON(qc == NULL); drv_stat = ata_wait_idle(ap); if (!ata_ok(drv_stat)) { @@ -3003,7 +3003,7 @@ static int ata_pio_complete (struct ata_port *ap) ap->hsm_task_state = HSM_ST_IDLE; - assert(qc->err_mask == 0); + WARN_ON(qc->err_mask); ata_poll_qc_complete(qc); /* another command may start at this point */ @@ -3360,7 +3360,7 @@ static void ata_pio_block(struct ata_port *ap) } qc = ata_qc_from_tag(ap, ap->active_tag); - assert(qc != NULL); + WARN_ON(qc == NULL); /* check error */ if (status & (ATA_ERR | ATA_DF)) { @@ -3397,12 +3397,12 @@ static void ata_pio_error(struct ata_port *ap) printk(KERN_WARNING "ata%u: PIO error\n", ap->id); qc = ata_qc_from_tag(ap, ap->active_tag); - assert(qc != NULL); + WARN_ON(qc == NULL); /* make sure qc->err_mask is available to * know what's wrong and recover */ - assert(qc->err_mask); + WARN_ON(qc->err_mask == 0); ap->hsm_task_state = HSM_ST_IDLE; @@ -3609,7 +3609,7 @@ void ata_qc_free(struct ata_queued_cmd *qc) struct ata_port *ap = qc->ap; unsigned int tag; - assert(qc != NULL); /* ata_qc_from_tag _might_ return NULL */ + WARN_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ qc->flags = 0; tag = qc->tag; @@ -3623,8 +3623,8 @@ void ata_qc_free(struct ata_queued_cmd *qc) void __ata_qc_complete(struct ata_queued_cmd *qc) { - assert(qc != NULL); /* ata_qc_from_tag _might_ return NULL */ - assert(qc->flags & ATA_QCFLAG_ACTIVE); + WARN_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ + WARN_ON(!(qc->flags & ATA_QCFLAG_ACTIVE)); if (likely(qc->flags & ATA_QCFLAG_DMAMAP)) ata_sg_clean(qc); @@ -4155,8 +4155,8 @@ static void atapi_packet_task(void *_data) u8 status; qc = ata_qc_from_tag(ap, ap->active_tag); - assert(qc != NULL); - assert(qc->flags & ATA_QCFLAG_ACTIVE); + WARN_ON(qc == NULL); + WARN_ON(!(qc->flags & ATA_QCFLAG_ACTIVE)); /* sleep-wait for BSY to clear */ DPRINTK("busy wait\n"); @@ -4174,7 +4174,7 @@ static void atapi_packet_task(void *_data) /* send SCSI cdb */ DPRINTK("send cdb\n"); - assert(ap->cdb_len >= 12); + WARN_ON(ap->cdb_len < 12); if (qc->tf.protocol == ATA_PROT_ATAPI_DMA || qc->tf.protocol == ATA_PROT_ATAPI_NODATA) { diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index 9d67c67683..26f07a2617 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -553,7 +553,7 @@ void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc) /* * Read the controller registers. */ - assert(NULL != qc->ap->ops->tf_read); + WARN_ON(qc->ap->ops->tf_read == NULL); qc->ap->ops->tf_read(qc->ap, tf); /* @@ -628,7 +628,7 @@ void ata_gen_fixed_sense(struct ata_queued_cmd *qc) /* * Read the controller registers. */ - assert(NULL != qc->ap->ops->tf_read); + WARN_ON(qc->ap->ops->tf_read == NULL); qc->ap->ops->tf_read(qc->ap, tf); /* @@ -746,7 +746,7 @@ enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd) spin_lock_irqsave(&ap->host_set->lock, flags); qc = ata_qc_from_tag(ap, ap->active_tag); if (qc) { - assert(qc->scsicmd == cmd); + WARN_ON(qc->scsicmd != cmd); qc->flags |= ATA_QCFLAG_EH_SCHEDULED; qc->err_mask |= AC_ERR_TIMEOUT; ret = EH_NOT_HANDLED; @@ -780,14 +780,14 @@ int ata_scsi_error(struct Scsi_Host *host) ap = (struct ata_port *) &host->hostdata[0]; spin_lock_irqsave(&ap->host_set->lock, flags); - assert(!(ap->flags & ATA_FLAG_IN_EH)); + WARN_ON(ap->flags & ATA_FLAG_IN_EH); ap->flags |= ATA_FLAG_IN_EH; - assert(ata_qc_from_tag(ap, ap->active_tag) != NULL); + WARN_ON(ata_qc_from_tag(ap, ap->active_tag) == NULL); spin_unlock_irqrestore(&ap->host_set->lock, flags); ap->ops->eng_timeout(ap); - assert(host->host_failed == 0 && list_empty(&host->eh_cmd_q)); + WARN_ON(host->host_failed || !list_empty(&host->eh_cmd_q)); scsi_eh_flush_done_q(&ap->eh_done_q); @@ -813,7 +813,7 @@ static void __ata_eh_qc_complete(struct ata_queued_cmd *qc) spin_lock_irqsave(&ap->host_set->lock, flags); qc->scsidone = ata_eh_scsidone; __ata_qc_complete(qc); - assert(!ata_tag_valid(qc->tag)); + WARN_ON(ata_tag_valid(qc->tag)); spin_unlock_irqrestore(&ap->host_set->lock, flags); scsi_eh_finish_cmd(scmd, &ap->eh_done_q); -- 2.39.2