From 1078da163fd2c1d3cba76cd4018e897a4f98efc5 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Thu, 19 May 2011 20:19:13 -0700 Subject: [PATCH] [SCSI] target: Convert REPORT_LUNs to use int_to_scsilun This patch converts transport_core_report_lun_response() to use drivers/scsi/scsi_scan.c:int_to_scsilun instead of using the struct target_core_fabric_ops->pack_lun() fabric provided API vector. It also removes the tfo->pack_lun check from target_fabric_tf_ops_check() and removes from struct target_core_fabric_ops->pack_lun() from target_core_fabric_ops.h, and the following mainline scsi-misc fabric modules: *) tcm_loop: Drop tcm_loop_pack_lun() usage *) tcm_fc: Drop ft_pack_lun() usage Reported-by: Mike Christie Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley --- drivers/target/loopback/tcm_loop.c | 13 ------------- drivers/target/target_core_configfs.c | 4 ---- drivers/target/target_core_device.c | 25 +++++-------------------- drivers/target/tcm_fc/tfc_conf.c | 8 -------- include/target/target_core_fabric_ops.h | 1 - 5 files changed, 5 insertions(+), 46 deletions(-) diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index aed4e464d31c..09681bafe10d 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -939,18 +939,6 @@ static u16 tcm_loop_get_fabric_sense_len(void) return 0; } -static u64 tcm_loop_pack_lun(unsigned int lun) -{ - u64 result; - - /* LSB of lun into byte 1 big-endian */ - result = ((lun & 0xff) << 8); - /* use flat space addressing method */ - result |= 0x40 | ((lun >> 8) & 0x3f); - - return cpu_to_le64(result); -} - static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba) { switch (tl_hba->tl_proto_id) { @@ -1481,7 +1469,6 @@ static int tcm_loop_register_configfs(void) fabric->tf_ops.set_fabric_sense_len = &tcm_loop_set_fabric_sense_len; fabric->tf_ops.get_fabric_sense_len = &tcm_loop_get_fabric_sense_len; fabric->tf_ops.is_state_remove = &tcm_loop_is_state_remove; - fabric->tf_ops.pack_lun = &tcm_loop_pack_lun; tf_cg = &fabric->tf_group; /* diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index a5f44a6e6e1d..ee6fad979b50 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -497,10 +497,6 @@ static int target_fabric_tf_ops_check( printk(KERN_ERR "Missing tfo->is_state_remove()\n"); return -EINVAL; } - if (!(tfo->pack_lun)) { - printk(KERN_ERR "Missing tfo->pack_lun()\n"); - return -EINVAL; - } /* * We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn() * tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index fc10ed4ac493..8407f9ca2b31 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include @@ -658,8 +659,7 @@ int transport_core_report_lun_response(struct se_cmd *se_cmd) struct se_session *se_sess = SE_SESS(se_cmd); struct se_task *se_task; unsigned char *buf = (unsigned char *)T_TASK(se_cmd)->t_task_buf; - u32 cdb_offset = 0, lun_count = 0, offset = 8; - u64 i, lun; + u32 cdb_offset = 0, lun_count = 0, offset = 8, i; list_for_each_entry(se_task, &T_TASK(se_cmd)->t_task_list, t_list) break; @@ -675,15 +675,7 @@ int transport_core_report_lun_response(struct se_cmd *se_cmd) * a $FABRIC_MOD. In that case, report LUN=0 only. */ if (!(se_sess)) { - lun = 0; - buf[offset++] = ((lun >> 56) & 0xff); - buf[offset++] = ((lun >> 48) & 0xff); - buf[offset++] = ((lun >> 40) & 0xff); - buf[offset++] = ((lun >> 32) & 0xff); - buf[offset++] = ((lun >> 24) & 0xff); - buf[offset++] = ((lun >> 16) & 0xff); - buf[offset++] = ((lun >> 8) & 0xff); - buf[offset++] = (lun & 0xff); + int_to_scsilun(0, (struct scsi_lun *)&buf[offset]); lun_count = 1; goto done; } @@ -703,15 +695,8 @@ int transport_core_report_lun_response(struct se_cmd *se_cmd) if ((cdb_offset + 8) >= se_cmd->data_length) continue; - lun = cpu_to_be64(CMD_TFO(se_cmd)->pack_lun(deve->mapped_lun)); - buf[offset++] = ((lun >> 56) & 0xff); - buf[offset++] = ((lun >> 48) & 0xff); - buf[offset++] = ((lun >> 40) & 0xff); - buf[offset++] = ((lun >> 32) & 0xff); - buf[offset++] = ((lun >> 24) & 0xff); - buf[offset++] = ((lun >> 16) & 0xff); - buf[offset++] = ((lun >> 8) & 0xff); - buf[offset++] = (lun & 0xff); + int_to_scsilun(deve->mapped_lun, (struct scsi_lun *)&buf[offset]); + offset += 8; cdb_offset += 8; } spin_unlock_irq(&SE_NODE_ACL(se_sess)->device_list_lock); diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index fcdbbffe88cc..84e868c255dd 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -519,13 +519,6 @@ static u32 ft_tpg_get_inst_index(struct se_portal_group *se_tpg) return tpg->index; } -static u64 ft_pack_lun(unsigned int index) -{ - WARN_ON(index >= 256); - /* Caller wants this byte-swapped */ - return cpu_to_le64((index & 0xff) << 8); -} - static struct target_core_fabric_ops ft_fabric_ops = { .get_fabric_name = ft_get_fabric_name, .get_fabric_proto_ident = fc_get_fabric_proto_ident, @@ -564,7 +557,6 @@ static struct target_core_fabric_ops ft_fabric_ops = { .get_fabric_sense_len = ft_get_fabric_sense_len, .set_fabric_sense_len = ft_set_fabric_sense_len, .is_state_remove = ft_is_state_remove, - .pack_lun = ft_pack_lun, /* * Setup function pointers for generic logic in * target_core_fabric_configfs.c diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h index dc78f77f9450..747e1404dca0 100644 --- a/include/target/target_core_fabric_ops.h +++ b/include/target/target_core_fabric_ops.h @@ -77,7 +77,6 @@ struct target_core_fabric_ops { u16 (*set_fabric_sense_len)(struct se_cmd *, u32); u16 (*get_fabric_sense_len)(void); int (*is_state_remove)(struct se_cmd *); - u64 (*pack_lun)(unsigned int); /* * fabric module calls for target_core_fabric_configfs.c */ -- 2.20.1