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[PATCH] libata: trivial updates to ata_sg_init_one()
There's no need to memset &qc->sgent manually, sg_init_one() clears sgent inside it. Also, kill not-so-necessary sg local variable. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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1 changed files with 1 additions and 5 deletions
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@ -3491,19 +3491,15 @@ void ata_noop_qc_prep(struct ata_queued_cmd *qc) { }
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void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf, unsigned int buflen)
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{
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struct scatterlist *sg;
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qc->flags |= ATA_QCFLAG_SINGLE;
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memset(&qc->sgent, 0, sizeof(qc->sgent));
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qc->__sg = &qc->sgent;
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qc->n_elem = 1;
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qc->orig_n_elem = 1;
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qc->buf_virt = buf;
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qc->nbytes = buflen;
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sg = qc->__sg;
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sg_init_one(sg, buf, buflen);
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sg_init_one(&qc->sgent, buf, buflen);
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}
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/**
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