From c38c007af04b928b5285da8cc44fbe2f4810e24e Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Sat, 15 Mar 2014 09:51:51 +0100 Subject: [SCSI] ses: Use vpd information from scsi_device The scsi_device now has VPD page83 information attached, so there is no need to query it again. Signed-off-by: Hannes Reinecke Signed-off-by: James Bottomley --- drivers/scsi/ses.c | 38 ++++++++++---------------------------- 1 file changed, 10 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index eba183c428cf..80bfece1a2de 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include @@ -448,27 +449,18 @@ static void ses_enclosure_data_process(struct enclosure_device *edev, static void ses_match_to_enclosure(struct enclosure_device *edev, struct scsi_device *sdev) { - unsigned char *buf; unsigned char *desc; - unsigned int vpd_len; struct efd efd = { .addr = 0, }; - buf = kmalloc(INIT_ALLOC_SIZE, GFP_KERNEL); - if (!buf || scsi_get_vpd_page(sdev, 0x83, buf, INIT_ALLOC_SIZE)) - goto free; - ses_enclosure_data_process(edev, to_scsi_device(edev->edev.parent), 0); - vpd_len = ((buf[2] << 8) | buf[3]) + 4; - kfree(buf); - buf = kmalloc(vpd_len, GFP_KERNEL); - if (!buf ||scsi_get_vpd_page(sdev, 0x83, buf, vpd_len)) - goto free; + if (!sdev->vpd_pg83_len) + return; - desc = buf + 4; - while (desc < buf + vpd_len) { + desc = sdev->vpd_pg83 + 4; + while (desc < sdev->vpd_pg83 + sdev->vpd_pg83_len) { enum scsi_protocol proto = desc[0] >> 4; u8 code_set = desc[0] & 0x0f; u8 piv = desc[1] & 0x80; @@ -478,25 +470,15 @@ static void ses_match_to_enclosure(struct enclosure_device *edev, if (piv && code_set == 1 && assoc == 1 && proto == SCSI_PROTOCOL_SAS && type == 3 && len == 8) - efd.addr = (u64)desc[4] << 56 | - (u64)desc[5] << 48 | - (u64)desc[6] << 40 | - (u64)desc[7] << 32 | - (u64)desc[8] << 24 | - (u64)desc[9] << 16 | - (u64)desc[10] << 8 | - (u64)desc[11]; + efd.addr = get_unaligned_be64(&desc[4]); desc += len + 4; } - if (!efd.addr) - goto free; + if (efd.addr) { + efd.dev = &sdev->sdev_gendev; - efd.dev = &sdev->sdev_gendev; - - enclosure_for_each_device(ses_enclosure_find_by_addr, &efd); - free: - kfree(buf); + enclosure_for_each_device(ses_enclosure_find_by_addr, &efd); + } } static int ses_intf_add(struct device *cdev, -- cgit v1.2.3