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Commit c38c007a authored by Hannes Reinecke's avatar Hannes Reinecke Committed by James Bottomley
Browse files

[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: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent b3ae8780

drivers/scsi/ses.c

+10 −28
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/enclosure.h>

#include <asm/unaligned.h>



#include <scsi/scsi.h>

#include <scsi/scsi_cmnd.h>
@@ -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;



		enclosure_for_each_device(ses_enclosure_find_by_addr, &efd);

 free:

	kfree(buf);

	}

}



static int ses_intf_add(struct device *cdev,