diff options
author | Christoph Hellwig <hch@lst.de> | 2016-01-09 05:30:45 -0800 |
---|---|---|
committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2016-03-10 21:44:28 -0800 |
commit | fb444abe61f5a943a41870d71eab8c4402bd46ab (patch) | |
tree | fed0a4e17519cb91a6b85b8de1857891202a1c50 /drivers/usb/gadget | |
parent | 7861728d42338e1efac9d400c39319c1b5efd05c (diff) | |
download | op-kernel-dev-fb444abe61f5a943a41870d71eab8c4402bd46ab.zip op-kernel-dev-fb444abe61f5a943a41870d71eab8c4402bd46ab.tar.gz |
target: Convert demo-mode only drivers to target_alloc_session
This patch converts existing loopback, usb-gadget, and
xen-scsiback demo-mode only fabric drivers to use the
new target_alloc_session API caller.
This includes adding a new alloc_session callback for
fabric driver internal nexus pointer assignments.
(Fixes for early for-next nexus breakage - Dan Carpenter)
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Acked-by: Juergen Gross <jgross@suse.com>
Tested-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Tested-by: Chris Boot <bootc@bootc.net>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r-- | drivers/usb/gadget/function/f_tcm.c | 55 |
1 files changed, 23 insertions, 32 deletions
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index bad007b5..e803724 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -1579,55 +1579,46 @@ out: return ret; } +static int usbg_alloc_sess_cb(struct se_portal_group *se_tpg, + struct se_session *se_sess, void *p) +{ + struct usbg_tpg *tpg = container_of(se_tpg, + struct usbg_tpg, se_tpg); + + tpg->tpg_nexus = p; + return 0; +} + static int tcm_usbg_make_nexus(struct usbg_tpg *tpg, char *name) { - struct se_portal_group *se_tpg; struct tcm_usbg_nexus *tv_nexus; - int ret; + int ret = 0; mutex_lock(&tpg->tpg_mutex); if (tpg->tpg_nexus) { ret = -EEXIST; pr_debug("tpg->tpg_nexus already exists\n"); - goto err_unlock; + goto out_unlock; } - se_tpg = &tpg->se_tpg; - ret = -ENOMEM; tv_nexus = kzalloc(sizeof(*tv_nexus), GFP_KERNEL); - if (!tv_nexus) - goto err_unlock; - tv_nexus->tvn_se_sess = transport_init_session(TARGET_PROT_NORMAL); - if (IS_ERR(tv_nexus->tvn_se_sess)) - goto err_free; + if (!tv_nexus) { + ret = -ENOMEM; + goto out_unlock; + } - /* - * Since we are running in 'demo mode' this call with generate a - * struct se_node_acl for the tcm_vhost struct se_portal_group with - * the SCSI Initiator port name of the passed configfs group 'name'. - */ - tv_nexus->tvn_se_sess->se_node_acl = core_tpg_check_initiator_node_acl( - se_tpg, name); - if (!tv_nexus->tvn_se_sess->se_node_acl) { + tv_nexus->tvn_se_sess = target_alloc_session(&tpg->se_tpg, 0, 0, + TARGET_PROT_NORMAL, name, + tv_nexus, usbg_alloc_sess_cb); + if (IS_ERR(tv_nexus->tvn_se_sess)) { #define MAKE_NEXUS_MSG "core_tpg_check_initiator_node_acl() failed for %s\n" pr_debug(MAKE_NEXUS_MSG, name); #undef MAKE_NEXUS_MSG - goto err_session; + ret = PTR_ERR(tv_nexus->tvn_se_sess); + kfree(tv_nexus); } - /* - * Now register the TCM vHost virtual I_T Nexus as active. - */ - transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl, - tv_nexus->tvn_se_sess, tv_nexus); - tpg->tpg_nexus = tv_nexus; - mutex_unlock(&tpg->tpg_mutex); - return 0; -err_session: - transport_free_session(tv_nexus->tvn_se_sess); -err_free: - kfree(tv_nexus); -err_unlock: +out_unlock: mutex_unlock(&tpg->tpg_mutex); return ret; } |