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scsi: Separate SCSI private block description initialization 

When blk_create_device() is called some parameters in blk_desc are
automatically filled. Separate SCSI private initialization and SCSI full
block device initialization not to rewrite already prepared data.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Michal Simek 2016-11-30 12:50:58 +01:00
parent c002e39ae6
commit 0b3a58eeee
1 changed files with 22 additions and 6 deletions
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28
common/scsi.c
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@ -422,12 +422,15 @@ static void scsi_setup_test_unit_ready(ccb *pccb)
pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
}
static void scsi_init_dev_desc(struct blk_desc *dev_desc, int devnum)
/**
* scsi_init_dev_desc_priv - initialize only SCSI specific blk_desc properties
*
* @dev_desc: Block device description pointer
*/
static void scsi_init_dev_desc_priv(struct blk_desc *dev_desc)
{
dev_desc->target = 0xff;
dev_desc->lun = 0xff;
dev_desc->lba = 0;
dev_desc->blksz = 0;
dev_desc->log2blksz =
LOG2_INVALID(typeof(dev_desc->log2blksz));
dev_desc->type = DEV_TYPE_UNKNOWN;
@ -435,15 +438,28 @@ static void scsi_init_dev_desc(struct blk_desc *dev_desc, int devnum)
dev_desc->product[0] = 0;
dev_desc->revision[0] = 0;
dev_desc->removable = false;
dev_desc->if_type = IF_TYPE_SCSI;
dev_desc->devnum = devnum;
dev_desc->part_type = PART_TYPE_UNKNOWN;
#ifndef CONFIG_BLK
dev_desc->block_read = scsi_read;
dev_desc->block_write = scsi_write;
#endif
}
/**
* scsi_init_dev_desc - initialize all SCSI specific blk_desc properties
*
* @dev_desc: Block device description pointer
* @devnum: Device number
*/
static void scsi_init_dev_desc(struct blk_desc *dev_desc, int devnum)
{
dev_desc->lba = 0;
dev_desc->blksz = 0;
dev_desc->if_type = IF_TYPE_SCSI;
dev_desc->devnum = devnum;
dev_desc->part_type = PART_TYPE_UNKNOWN;
scsi_init_dev_desc_priv(dev_desc);
}
/**
* scsi_detect_dev - Detect scsi device