diff options
Diffstat (limited to 'drivers/scsi/libfc')
| -rw-r--r-- | drivers/scsi/libfc/fc_disc.c | 32 | ||||
| -rw-r--r-- | drivers/scsi/libfc/fc_lport.c | 108 | ||||
| -rw-r--r-- | drivers/scsi/libfc/fc_rport.c | 99 |
3 files changed, 99 insertions, 140 deletions
diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c index 3f3569ec5ce3..6125df787200 100644 --- a/drivers/scsi/libfc/fc_disc.c +++ b/drivers/scsi/libfc/fc_disc.c @@ -59,9 +59,6 @@ static void fc_disc_restart(struct fc_disc *); /** * fc_disc_stop_rports() - Delete all the remote ports associated with the lport * @disc: The discovery job to stop remote ports on - * - * Locking Note: This function expects that the lport mutex is locked before - * calling it. */ static void fc_disc_stop_rports(struct fc_disc *disc) { @@ -69,6 +66,7 @@ static void fc_disc_stop_rports(struct fc_disc *disc) struct fc_rport_priv *rdata; lport = fc_disc_lport(disc); + lockdep_assert_held(&lport->lp_mutex); rcu_read_lock(); list_for_each_entry_rcu(rdata, &disc->rports, peers) { @@ -84,9 +82,6 @@ static void fc_disc_stop_rports(struct fc_disc *disc) * fc_disc_recv_rscn_req() - Handle Registered State Change Notification (RSCN) * @disc: The discovery object to which the RSCN applies * @fp: The RSCN frame - * - * Locking Note: This function expects that the disc_mutex is locked - * before it is called. */ static void fc_disc_recv_rscn_req(struct fc_disc *disc, struct fc_frame *fp) { @@ -101,6 +96,8 @@ static void fc_disc_recv_rscn_req(struct fc_disc *disc, struct fc_frame *fp) LIST_HEAD(disc_ports); struct fc_disc_port *dp, *next; + lockdep_assert_held(&disc->disc_mutex); + lport = fc_disc_lport(disc); FC_DISC_DBG(disc, "Received an RSCN event\n"); @@ -220,12 +217,11 @@ static void fc_disc_recv_req(struct fc_lport *lport, struct fc_frame *fp) /** * fc_disc_restart() - Restart discovery * @disc: The discovery object to be restarted - * - * Locking Note: This function expects that the disc mutex - * is already locked. */ static void fc_disc_restart(struct fc_disc *disc) { + lockdep_assert_held(&disc->disc_mutex); + if (!disc->disc_callback) return; @@ -271,16 +267,13 @@ static void fc_disc_start(void (*disc_callback)(struct fc_lport *, * fc_disc_done() - Discovery has been completed * @disc: The discovery context * @event: The discovery completion status - * - * Locking Note: This function expects that the disc mutex is locked before - * it is called. The discovery callback is then made with the lock released, - * and the lock is re-taken before returning from this function */ static void fc_disc_done(struct fc_disc *disc, enum fc_disc_event event) { struct fc_lport *lport = fc_disc_lport(disc); struct fc_rport_priv *rdata; + lockdep_assert_held(&disc->disc_mutex); FC_DISC_DBG(disc, "Discovery complete\n"); disc->pending = 0; @@ -360,15 +353,14 @@ static void fc_disc_error(struct fc_disc *disc, struct fc_frame *fp) /** * fc_disc_gpn_ft_req() - Send Get Port Names by FC-4 type (GPN_FT) request * @lport: The discovery context - * - * Locking Note: This function expects that the disc_mutex is locked - * before it is called. */ static void fc_disc_gpn_ft_req(struct fc_disc *disc) { struct fc_frame *fp; struct fc_lport *lport = fc_disc_lport(disc); + lockdep_assert_held(&disc->disc_mutex); + WARN_ON(!fc_lport_test_ready(lport)); disc->pending = 1; @@ -658,8 +650,6 @@ out: * @lport: The local port to initiate discovery on * @rdata: remote port private data * - * Locking Note: This function expects that the disc_mutex is locked - * before it is called. * On failure, an error code is returned. */ static int fc_disc_gpn_id_req(struct fc_lport *lport, @@ -667,6 +657,7 @@ static int fc_disc_gpn_id_req(struct fc_lport *lport, { struct fc_frame *fp; + lockdep_assert_held(&lport->disc.disc_mutex); fp = fc_frame_alloc(lport, sizeof(struct fc_ct_hdr) + sizeof(struct fc_ns_fid)); if (!fp) @@ -683,14 +674,13 @@ static int fc_disc_gpn_id_req(struct fc_lport *lport, * fc_disc_single() - Discover the directory information for a single target * @lport: The local port the remote port is associated with * @dp: The port to rediscover - * - * Locking Note: This function expects that the disc_mutex is locked - * before it is called. */ static int fc_disc_single(struct fc_lport *lport, struct fc_disc_port *dp) { struct fc_rport_priv *rdata; + lockdep_assert_held(&lport->disc.disc_mutex); + rdata = fc_rport_create(lport, dp->port_id); if (!rdata) return -ENOMEM; diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index 21be672679fb..be83590ed955 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -237,14 +237,13 @@ static const char *fc_lport_state(struct fc_lport *lport) * @remote_fid: The FID of the ptp rport * @remote_wwpn: The WWPN of the ptp rport * @remote_wwnn: The WWNN of the ptp rport - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_ptp_setup(struct fc_lport *lport, u32 remote_fid, u64 remote_wwpn, u64 remote_wwnn) { + lockdep_assert_held(&lport->lp_mutex); + if (lport->ptp_rdata) { fc_rport_logoff(lport->ptp_rdata); kref_put(&lport->ptp_rdata->kref, fc_rport_destroy); @@ -403,12 +402,11 @@ static void fc_lport_add_fc4_type(struct fc_lport *lport, enum fc_fh_type type) * fc_lport_recv_rlir_req() - Handle received Registered Link Incident Report. * @lport: Fibre Channel local port receiving the RLIR * @fp: The RLIR request frame - * - * Locking Note: The lport lock is expected to be held before calling - * this function. */ static void fc_lport_recv_rlir_req(struct fc_lport *lport, struct fc_frame *fp) { + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Received RLIR request while in state %s\n", fc_lport_state(lport)); @@ -420,9 +418,6 @@ static void fc_lport_recv_rlir_req(struct fc_lport *lport, struct fc_frame *fp) * fc_lport_recv_echo_req() - Handle received ECHO request * @lport: The local port receiving the ECHO * @fp: ECHO request frame - * - * Locking Note: The lport lock is expected to be held before calling - * this function. */ static void fc_lport_recv_echo_req(struct fc_lport *lport, struct fc_frame *in_fp) @@ -432,6 +427,8 @@ static void fc_lport_recv_echo_req(struct fc_lport *lport, void *pp; void *dp; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Received ECHO request while in state %s\n", fc_lport_state(lport)); @@ -456,9 +453,6 @@ static void fc_lport_recv_echo_req(struct fc_lport *lport, * fc_lport_recv_rnid_req() - Handle received Request Node ID data request * @lport: The local port receiving the RNID * @fp: The RNID request frame - * - * Locking Note: The lport lock is expected to be held before calling - * this function. */ static void fc_lport_recv_rnid_req(struct fc_lport *lport, struct fc_frame *in_fp) @@ -474,6 +468,8 @@ static void fc_lport_recv_rnid_req(struct fc_lport *lport, u8 fmt; size_t len; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Received RNID request while in state %s\n", fc_lport_state(lport)); @@ -515,12 +511,11 @@ static void fc_lport_recv_rnid_req(struct fc_lport *lport, * fc_lport_recv_logo_req() - Handle received fabric LOGO request * @lport: The local port receiving the LOGO * @fp: The LOGO request frame - * - * Locking Note: The lport lock is expected to be held before calling - * this function. */ static void fc_lport_recv_logo_req(struct fc_lport *lport, struct fc_frame *fp) { + lockdep_assert_held(&lport->lp_mutex); + fc_seq_els_rsp_send(fp, ELS_LS_ACC, NULL); fc_lport_enter_reset(lport); fc_frame_free(fp); @@ -553,11 +548,11 @@ EXPORT_SYMBOL(fc_fabric_login); /** * __fc_linkup() - Handler for transport linkup events * @lport: The lport whose link is up - * - * Locking: must be called with the lp_mutex held */ void __fc_linkup(struct fc_lport *lport) { + lockdep_assert_held(&lport->lp_mutex); + if (!lport->link_up) { lport->link_up = 1; @@ -584,11 +579,11 @@ EXPORT_SYMBOL(fc_linkup); /** * __fc_linkdown() - Handler for transport linkdown events * @lport: The lport whose link is down - * - * Locking: must be called with the lp_mutex held */ void __fc_linkdown(struct fc_lport *lport) { + lockdep_assert_held(&lport->lp_mutex); + if (lport->link_up) { lport->link_up = 0; fc_lport_enter_reset(lport); @@ -722,12 +717,11 @@ static void fc_lport_disc_callback(struct fc_lport *lport, /** * fc_rport_enter_ready() - Enter the ready state and start discovery * @lport: The local port that is ready - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_ready(struct fc_lport *lport) { + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered READY from state %s\n", fc_lport_state(lport)); @@ -745,13 +739,12 @@ static void fc_lport_enter_ready(struct fc_lport *lport) * @lport: The local port which will have its Port ID set. * @port_id: The new port ID. * @fp: The frame containing the incoming request, or NULL. - * - * Locking Note: The lport lock is expected to be held before calling - * this function. */ static void fc_lport_set_port_id(struct fc_lport *lport, u32 port_id, struct fc_frame *fp) { + lockdep_assert_held(&lport->lp_mutex); + if (port_id) printk(KERN_INFO "host%d: Assigned Port ID %6.6x\n", lport->host->host_no, port_id); @@ -801,9 +794,6 @@ EXPORT_SYMBOL(fc_lport_set_local_id); * A received FLOGI request indicates a point-to-point connection. * Accept it with the common service parameters indicating our N port. * Set up to do a PLOGI if we have the higher-number WWPN. - * - * Locking Note: The lport lock is expected to be held before calling - * this function. */ static void fc_lport_recv_flogi_req(struct fc_lport *lport, struct fc_frame *rx_fp) @@ -816,6 +806,8 @@ static void fc_lport_recv_flogi_req(struct fc_lport *lport, u32 remote_fid; u32 local_fid; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Received FLOGI request while in state %s\n", fc_lport_state(lport)); @@ -1006,12 +998,11 @@ EXPORT_SYMBOL(fc_lport_reset); /** * fc_lport_reset_locked() - Reset the local port w/ the lport lock held * @lport: The local port to be reset - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_reset_locked(struct fc_lport *lport) { + lockdep_assert_held(&lport->lp_mutex); + if (lport->dns_rdata) { fc_rport_logoff(lport->dns_rdata); lport->dns_rdata = NULL; @@ -1035,12 +1026,11 @@ static void fc_lport_reset_locked(struct fc_lport *lport) /** * fc_lport_enter_reset() - Reset the local port * @lport: The local port to be reset - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_reset(struct fc_lport *lport) { + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered RESET state from %s state\n", fc_lport_state(lport)); @@ -1065,12 +1055,11 @@ static void fc_lport_enter_reset(struct fc_lport *lport) /** * fc_lport_enter_disabled() - Disable the local port * @lport: The local port to be reset - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_disabled(struct fc_lport *lport) { + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered disabled state from %s state\n", fc_lport_state(lport)); @@ -1321,14 +1310,13 @@ err: /** * fc_lport_enter_scr() - Send a SCR (State Change Register) request * @lport: The local port to register for state changes - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_scr(struct fc_lport *lport) { struct fc_frame *fp; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered SCR state from %s state\n", fc_lport_state(lport)); @@ -1349,9 +1337,6 @@ static void fc_lport_enter_scr(struct fc_lport *lport) /** * fc_lport_enter_ns() - register some object with the name server * @lport: Fibre Channel local port to register - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_ns(struct fc_lport *lport, enum fc_lport_state state) { @@ -1360,6 +1345,8 @@ static void fc_lport_enter_ns(struct fc_lport *lport, enum fc_lport_state state) int size = sizeof(struct fc_ct_hdr); size_t len; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered %s state from %s state\n", fc_lport_state_names[state], fc_lport_state(lport)); @@ -1419,14 +1406,13 @@ static struct fc_rport_operations fc_lport_rport_ops = { /** * fc_rport_enter_dns() - Create a fc_rport for the name server * @lport: The local port requesting a remote port for the name server - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_dns(struct fc_lport *lport) { struct fc_rport_priv *rdata; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered DNS state from %s state\n", fc_lport_state(lport)); @@ -1449,9 +1435,6 @@ err: /** * fc_lport_enter_ms() - management server commands * @lport: Fibre Channel local port to register - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state) { @@ -1461,6 +1444,8 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state) size_t len; int numattrs; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered %s state from %s state\n", fc_lport_state_names[state], fc_lport_state(lport)); @@ -1536,14 +1521,13 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state) /** * fc_rport_enter_fdmi() - Create a fc_rport for the management server * @lport: The local port requesting a remote port for the management server - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_fdmi(struct fc_lport *lport) { struct fc_rport_priv *rdata; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered FDMI state from %s state\n", fc_lport_state(lport)); @@ -1668,15 +1652,14 @@ EXPORT_SYMBOL(fc_lport_logo_resp); /** * fc_rport_enter_logo() - Logout of the fabric * @lport: The local port to be logged out - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_logo(struct fc_lport *lport) { struct fc_frame *fp; struct fc_els_logo *logo; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered LOGO state from %s state\n", fc_lport_state(lport)); @@ -1811,14 +1794,13 @@ EXPORT_SYMBOL(fc_lport_flogi_resp); /** * fc_rport_enter_flogi() - Send a FLOGI request to the fabric manager * @lport: Fibre Channel local port to be logged in to the fabric - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static void fc_lport_enter_flogi(struct fc_lport *lport) { struct fc_frame *fp; + lockdep_assert_held(&lport->lp_mutex); + FC_LPORT_DBG(lport, "Entered FLOGI state from %s state\n", fc_lport_state(lport)); @@ -1962,9 +1944,6 @@ static void fc_lport_bsg_resp(struct fc_seq *sp, struct fc_frame *fp, * @job: The BSG Passthrough job * @lport: The local port sending the request * @did: The destination port id - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static int fc_lport_els_request(struct bsg_job *job, struct fc_lport *lport, @@ -1976,6 +1955,8 @@ static int fc_lport_els_request(struct bsg_job *job, char *pp; int len; + lockdep_assert_held(&lport->lp_mutex); + fp = fc_frame_alloc(lport, job->request_payload.payload_len); if (!fp) return -ENOMEM; @@ -2023,9 +2004,6 @@ static int fc_lport_els_request(struct bsg_job *job, * @lport: The local port sending the request * @did: The destination FC-ID * @tov: The timeout period to wait for the response - * - * Locking Note: The lport lock is expected to be held before calling - * this routine. */ static int fc_lport_ct_request(struct bsg_job *job, struct fc_lport *lport, u32 did, u32 tov) @@ -2036,6 +2014,8 @@ static int fc_lport_ct_request(struct bsg_job *job, struct fc_ct_req *ct; size_t len; + lockdep_assert_held(&lport->lp_mutex); + fp = fc_frame_alloc(lport, sizeof(struct fc_ct_hdr) + job->request_payload.payload_len); if (!fp) diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c index 31d31aad3de1..6aff9303251a 100644 --- a/drivers/scsi/libfc/fc_rport.c +++ b/drivers/scsi/libfc/fc_rport.c @@ -136,13 +136,13 @@ EXPORT_SYMBOL(fc_rport_lookup); * @ids: The identifiers for the new remote port * * The remote port will start in the INIT state. - * - * Locking note: must be called with the disc_mutex held. */ struct fc_rport_priv *fc_rport_create(struct fc_lport *lport, u32 port_id) { struct fc_rport_priv *rdata; + lockdep_assert_held(&lport->disc.disc_mutex); + rdata = fc_rport_lookup(lport, port_id); if (rdata) return rdata; @@ -245,12 +245,12 @@ static unsigned int fc_plogi_get_maxframe(struct fc_els_flogi *flp, * fc_rport_state_enter() - Change the state of a remote port * @rdata: The remote port whose state should change * @new: The new state - * - * Locking Note: Called with the rport lock held */ static void fc_rport_state_enter(struct fc_rport_priv *rdata, enum fc_rport_state new) { + lockdep_assert_held(&rdata->rp_mutex); + if (rdata->rp_state != new) rdata->retries = 0; rdata->rp_state = new; @@ -469,8 +469,6 @@ EXPORT_SYMBOL(fc_rport_login); * @rdata: The remote port to be deleted * @event: The event to report as the reason for deletion * - * Locking Note: Called with the rport lock held. - * * Allow state change into DELETE only once. * * Call queue_work only if there's no event already pending. @@ -483,6 +481,8 @@ EXPORT_SYMBOL(fc_rport_login); static void fc_rport_enter_delete(struct fc_rport_priv *rdata, enum fc_rport_event event) { + lockdep_assert_held(&rdata->rp_mutex); + if (rdata->rp_state == RPORT_ST_DELETE) return; @@ -546,13 +546,12 @@ EXPORT_SYMBOL(fc_rport_logoff); * fc_rport_enter_ready() - Transition to the RPORT_ST_READY state * @rdata: The remote port that is ready * - * Locking Note: The rport lock is expected to be held before calling - * this routine. - * * Reference counting: schedules workqueue, does not modify kref */ static void fc_rport_enter_ready(struct fc_rport_priv *rdata) { + lockdep_assert_held(&rdata->rp_mutex); + fc_rport_state_enter(rdata, RPORT_ST_READY); FC_RPORT_DBG(rdata, "Port is Ready\n"); @@ -615,15 +614,14 @@ static void fc_rport_timeout(struct work_struct *work) * @rdata: The remote port the error is happened on * @err: The error code * - * Locking Note: The rport lock is expected to be held before - * calling this routine - * * Reference counting: does not modify kref */ static void fc_rport_error(struct fc_rport_priv *rdata, int err) { struct fc_lport *lport = rdata->local_port; + lockdep_assert_held(&rdata->rp_mutex); + FC_RPORT_DBG(rdata, "Error %d in state %s, retries %d\n", -err, fc_rport_state(rdata), rdata->retries); @@ -662,15 +660,14 @@ static void fc_rport_error(struct fc_rport_priv *rdata, int err) * If the error was an exchange timeout retry immediately, * otherwise wait for E_D_TOV. * - * Locking Note: The rport lock is expected to be held before - * calling this routine - * * Reference counting: increments kref when scheduling retry_work */ static void fc_rport_error_retry(struct fc_rport_priv *rdata, int err) { unsigned long delay = msecs_to_jiffies(rdata->e_d_tov); + lockdep_assert_held(&rdata->rp_mutex); + /* make sure this isn't an FC_EX_CLOSED error, never retry those */ if (err == -FC_EX_CLOSED) goto out; @@ -822,9 +819,6 @@ bad: * fc_rport_enter_flogi() - Send a FLOGI request to the remote port for p-mp * @rdata: The remote port to send a FLOGI to * - * Locking Note: The rport lock is expected to be held before calling - * this routine. - * * Reference counting: increments kref when sending ELS */ static void fc_rport_enter_flogi(struct fc_rport_priv *rdata) @@ -832,6 +826,8 @@ static void fc_rport_enter_flogi(struct fc_rport_priv *rdata) struct fc_lport *lport = rdata->local_port; struct fc_frame *fp; + lockdep_assert_held(&rdata->rp_mutex); + if (!lport->point_to_multipoint) return fc_rport_enter_plogi(rdata); @@ -1071,9 +1067,6 @@ fc_rport_compatible_roles(struct fc_lport *lport, struct fc_rport_priv *rdata) * fc_rport_enter_plogi() - Send Port Login (PLOGI) request * @rdata: The remote port to send a PLOGI to * - * Locking Note: The rport lock is expected to be held before calling - * this routine. - * * Reference counting: increments kref when sending ELS */ static void fc_rport_enter_plogi(struct fc_rport_priv *rdata) @@ -1081,6 +1074,8 @@ static void fc_rport_enter_plogi(struct fc_rport_priv *rdata) struct fc_lport *lport = rdata->local_port; struct fc_frame *fp; + lockdep_assert_held(&rdata->rp_mutex); + if (!fc_rport_compatible_roles(lport, rdata)) { FC_RPORT_DBG(rdata, "PLOGI suppressed for incompatible role\n"); fc_rport_state_enter(rdata, RPORT_ST_PLOGI_WAIT); @@ -1232,9 +1227,6 @@ put: * fc_rport_enter_prli() - Send Process Login (PRLI) request * @rdata: The remote port to send the PRLI request to * - * Locking Note: The rport lock is expected to be held before calling - * this routine. - * * Reference counting: increments kref when sending ELS */ static void fc_rport_enter_prli(struct fc_rport_priv *rdata) @@ -1247,6 +1239,8 @@ static void fc_rport_enter_prli(struct fc_rport_priv *rdata) struct fc_frame *fp; struct fc4_prov *prov; + lockdep_assert_held(&rdata->rp_mutex); + /* * If the rport is one of the well known addresses * we skip PRLI and RTV and go straight to READY. @@ -1372,9 +1366,6 @@ put: * fc_rport_enter_rtv() - Send Request Timeout Value (RTV) request * @rdata: The remote port to send the RTV request to * - * Locking Note: The rport lock is expected to be held before calling - * this routine. - * * Reference counting: increments kref when sending ELS */ static void fc_rport_enter_rtv(struct fc_rport_priv *rdata) @@ -1382,6 +1373,8 @@ static void fc_rport_enter_rtv(struct fc_rport_priv *rdata) struct fc_frame *fp; struct fc_lport *lport = rdata->local_port; + lockdep_assert_held(&rdata->rp_mutex); + FC_RPORT_DBG(rdata, "Port entered RTV state from %s state\n", fc_rport_state(rdata)); @@ -1406,8 +1399,6 @@ static void fc_rport_enter_rtv(struct fc_rport_priv *rdata) * fc_rport_recv_rtv_req() - Handler for Read Timeout Value (RTV) requests * @rdata: The remote port that sent the RTV request * @in_fp: The RTV request frame - * - * Locking Note: Called with the lport and rport locks held. */ static void fc_rport_recv_rtv_req(struct fc_rport_priv *rdata, struct fc_frame *in_fp) @@ -1417,6 +1408,9 @@ static void fc_rport_recv_rtv_req(struct fc_rport_priv *rdata, struct fc_els_rtv_acc *rtv; struct fc_seq_els_data rjt_data; + lockdep_assert_held(&rdata->rp_mutex); + lockdep_assert_held(&lport->lp_mutex); + FC_RPORT_DBG(rdata, "Received RTV request\n"); fp = fc_frame_alloc(lport, sizeof(*rtv)); @@ -1460,9 +1454,6 @@ static void fc_rport_logo_resp(struct fc_seq *sp, struct fc_frame *fp, * fc_rport_enter_logo() - Send a logout (LOGO) request * @rdata: The remote port to send the LOGO request to * - * Locking Note: The rport lock is expected to be held before calling - * this routine. - * * Reference counting: increments kref when sending ELS */ static void fc_rport_enter_logo(struct fc_rport_priv *rdata) @@ -1470,6 +1461,8 @@ static void fc_rport_enter_logo(struct fc_rport_priv *rdata) struct fc_lport *lport = rdata->local_port; struct fc_frame *fp; + lockdep_assert_held(&rdata->rp_mutex); + FC_RPORT_DBG(rdata, "Port sending LOGO from %s state\n", fc_rport_state(rdata)); @@ -1548,9 +1541,6 @@ put: * fc_rport_enter_adisc() - Send Address Discover (ADISC) request * @rdata: The remote port to send the ADISC request to * - * Locking Note: The rport lock is expected to be held before calling - * this routine. - * * Reference counting: increments kref when sending ELS */ static void fc_rport_enter_adisc(struct fc_rport_priv *rdata) @@ -1558,6 +1548,8 @@ static void fc_rport_enter_adisc(struct fc_rport_priv *rdata) struct fc_lport *lport = rdata->local_port; struct fc_frame *fp; + lockdep_assert_held(&rdata->rp_mutex); + FC_RPORT_DBG(rdata, "sending ADISC from %s state\n", fc_rport_state(rdata)); @@ -1581,8 +1573,6 @@ static void fc_rport_enter_adisc(struct fc_rport_priv *rdata) * fc_rport_recv_adisc_req() - Handler for Address Discovery (ADISC) requests * @rdata: The remote port that sent the ADISC request * @in_fp: The ADISC request frame - * - * Locking Note: Called with the lport and rport locks held. */ static void fc_rport_recv_adisc_req(struct fc_rport_priv *rdata, struct fc_frame *in_fp) @@ -1592,6 +1582,9 @@ static void fc_rport_recv_adisc_req(struct fc_rport_priv *rdata, struct fc_els_adisc *adisc; struct fc_seq_els_data rjt_data; + lockdep_assert_held(&rdata->rp_mutex); + lockdep_assert_held(&lport->lp_mutex); + FC_RPORT_DBG(rdata, "Received ADISC request\n"); adisc = fc_frame_payload_get(in_fp, sizeof(*adisc)); @@ -1618,9 +1611,6 @@ drop: * fc_rport_recv_rls_req() - Handle received Read Link Status request * @rdata: The remote port that sent the RLS request * @rx_fp: The PRLI request frame - * - * Locking Note: The rport lock is expected to be held before calling - * this function. */ static void fc_rport_recv_rls_req(struct fc_rport_priv *rdata, struct fc_frame *rx_fp) @@ -1634,6 +1624,8 @@ static void fc_rport_recv_rls_req(struct fc_rport_priv *rdata, struct fc_seq_els_data rjt_data; struct fc_host_statistics *hst; + lockdep_assert_held(&rdata->rp_mutex); + FC_RPORT_DBG(rdata, "Received RLS request while in state %s\n", fc_rport_state(rdata)); @@ -1687,8 +1679,6 @@ out: * Handle incoming ELS requests that require port login. * The ELS opcode has already been validated by the caller. * - * Locking Note: Called with the lport lock held. - * * Reference counting: does not modify kref */ static void fc_rport_recv_els_req(struct fc_lport *lport, struct fc_frame *fp) @@ -1696,6 +1686,8 @@ static void fc_rport_recv_els_req(struct fc_lport *lport, struct fc_frame *fp) struct fc_rport_priv *rdata; struct fc_seq_els_data els_data; + lockdep_assert_held(&lport->lp_mutex); + rdata = fc_rport_lookup(lport, fc_frame_sid(fp)); if (!rdata) { FC_RPORT_ID_DBG(lport, fc_frame_sid(fp), @@ -1783,14 +1775,14 @@ busy: * @lport: The local port that received the request * @fp: The request frame * - * Locking Note: Called with the lport lock held. - * * Reference counting: does not modify kref */ void fc_rport_recv_req(struct fc_lport *lport, struct fc_frame *fp) { struct fc_seq_els_data els_data; + lockdep_assert_held(&lport->lp_mutex); + /* * Handle FLOGI, PLOGI and LOGO requests separately, since they * don't require prior login. @@ -1831,8 +1823,6 @@ EXPORT_SYMBOL(fc_rport_recv_req); * @lport: The local port that received the PLOGI request * @rx_fp: The PLOGI request frame * - * Locking Note: The rport lock is held before calling this function. - * * Reference counting: increments kref on return */ static void fc_rport_recv_plogi_req(struct fc_lport *lport, @@ -1845,6 +1835,8 @@ static void fc_rport_recv_plogi_req(struct fc_lport *lport, struct fc_seq_els_data rjt_data; u32 sid; + lockdep_assert_held(&rdata->rp_mutex); + sid = fc_frame_sid(fp); FC_RPORT_ID_DBG(lport, sid, "Received PLOGI request\n"); @@ -1955,9 +1947,6 @@ reject: * fc_rport_recv_prli_req() - Handler for process login (PRLI) requests * @rdata: The remote port that sent the PRLI request * @rx_fp: The PRLI request frame - * - * Locking Note: The rport lock is expected to be held before calling - * this function. */ static void fc_rport_recv_prli_req(struct fc_rport_priv *rdata, struct fc_frame *rx_fp) @@ -1976,6 +1965,8 @@ static void fc_rport_recv_prli_req(struct fc_rport_priv *rdata, struct fc_seq_els_data rjt_data; struct fc4_prov *prov; + lockdep_assert_held(&rdata->rp_mutex); + FC_RPORT_DBG(rdata, "Received PRLI request while in state %s\n", fc_rport_state(rdata)); @@ -2072,9 +2063,6 @@ drop: * fc_rport_recv_prlo_req() - Handler for process logout (PRLO) requests * @rdata: The remote port that sent the PRLO request * @rx_fp: The PRLO request frame - * - * Locking Note: The rport lock is expected to be held before calling - * this function. */ static void fc_rport_recv_prlo_req(struct fc_rport_priv *rdata, struct fc_frame *rx_fp) @@ -2091,6 +2079,8 @@ static void fc_rport_recv_prlo_req(struct fc_rport_priv *rdata, unsigned int plen; struct fc_seq_els_data rjt_data; + lockdep_assert_held(&rdata->rp_mutex); + FC_RPORT_DBG(rdata, "Received PRLO request while in state %s\n", fc_rport_state(rdata)); @@ -2144,9 +2134,6 @@ drop: * @lport: The local port that received the LOGO request * @fp: The LOGO request frame * - * Locking Note: The rport lock is expected to be held before calling - * this function. - * * Reference counting: drops kref on return */ static void fc_rport_recv_logo_req(struct fc_lport *lport, struct fc_frame *fp) @@ -2154,6 +2141,8 @@ static void fc_rport_recv_logo_req(struct fc_lport *lport, struct fc_frame *fp) struct fc_rport_priv *rdata; u32 sid; + lockdep_assert_held(&lport->lp_mutex); + fc_seq_els_rsp_send(fp, ELS_LS_ACC, NULL); sid = fc_frame_sid(fp); |