From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: [PATCH 02/12] libata-hp-prep: implement ata_dev_init() Date: Wed, 31 May 2006 20:05:41 +0900 Message-ID: <11490735412522-git-send-email-htejun@gmail.com> References: <1149073540186-git-send-email-htejun@gmail.com> Reply-To: Tejun Heo Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Return-path: Received: from py-out-1112.google.com ([64.233.166.180]:33644 "EHLO py-out-1112.google.com") by vger.kernel.org with ESMTP id S964966AbWEaLFt (ORCPT ); Wed, 31 May 2006 07:05:49 -0400 Received: by py-out-1112.google.com with SMTP id e30so1033920pya for ; Wed, 31 May 2006 04:05:48 -0700 (PDT) In-Reply-To: <1149073540186-git-send-email-htejun@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: jgarzik@pobox.com, mlord@pobox.com, albertcc@tw.ibm.com, alan@lxorguk.ukuu.org.uk, axboe@suse.de, forrest.zhao@intel.com, linux-ide@vger.kernel.org Cc: Tejun Heo Move initialization of struct ata_device into ata_dev_init() in preparation for hotplug. This patch calls ata_dev_init() from ata_host_init() and thus makes no functional difference. Signed-off-by: Tejun Heo --- drivers/scsi/libata-core.c | 26 +++++++++++++++++++++----- drivers/scsi/libata.h | 1 + 2 files changed, 22 insertions(+), 5 deletions(-) 3ef3b43d5633d30fa3f033f62094ec2e9c5b8376 diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 66df895..8fda822 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -5142,6 +5142,26 @@ static void ata_host_remove(struct ata_p } /** + * ata_dev_init - Initialize an ata_device structure + * @dev: Device structure to initialize + * + * Initialize @dev in preparation for probing. + * + * LOCKING: + * Inherited from caller. + */ +void ata_dev_init(struct ata_device *dev) +{ + struct ata_port *ap = dev->ap; + + memset((void *)dev, 0, sizeof(*dev)); + dev->devno = dev - ap->device; + dev->pio_mask = UINT_MAX; + dev->mwdma_mask = UINT_MAX; + dev->udma_mask = UINT_MAX; +} + +/** * ata_host_init - Initialize an ata_port structure * @ap: Structure to initialize * @host: associated SCSI mid-layer structure @@ -5155,7 +5175,6 @@ static void ata_host_remove(struct ata_p * LOCKING: * Inherited from caller. */ - static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host, struct ata_host_set *host_set, const struct ata_probe_ent *ent, unsigned int port_no) @@ -5199,10 +5218,7 @@ static void ata_host_init(struct ata_por for (i = 0; i < ATA_MAX_DEVICES; i++) { struct ata_device *dev = &ap->device[i]; dev->ap = ap; - dev->devno = i; - dev->pio_mask = UINT_MAX; - dev->mwdma_mask = UINT_MAX; - dev->udma_mask = UINT_MAX; + ata_dev_init(dev); } #ifdef ATA_IRQ_TRAP diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h index d56d9e1..c2b1c91 100644 --- a/drivers/scsi/libata.h +++ b/drivers/scsi/libata.h @@ -62,6 +62,7 @@ extern int ata_check_atapi_dma(struct at extern void ata_dev_select(struct ata_port *ap, unsigned int device, unsigned int wait, unsigned int can_sleep); extern void swap_buf_le16(u16 *buf, unsigned int buf_words); +extern void ata_dev_init(struct ata_device *dev); extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg); extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg); -- 1.3.2