From 768c72cc34a26ed1c41c9af89886f91af08ded8c Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Tue, 18 Oct 2016 10:01:50 +0200 Subject: [PATCH] scsi: libfc: Replace ->exch_done callback with function call The ->exch_done callback only ever had one implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke Acked-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/libfc/fc_exch.c | 6 ++---- drivers/scsi/libfc/fc_fcp.c | 20 +++++++++----------- drivers/scsi/libfc/fc_lport.c | 2 +- drivers/target/tcm_fc/tfc_cmd.c | 4 ++-- include/scsi/libfc.h | 9 +-------- 5 files changed, 15 insertions(+), 26 deletions(-) diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index fffb9a3162e2..b98ad3f743cb 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -969,7 +969,7 @@ static struct fc_exch *fc_exch_find(struct fc_exch_mgr *mp, u16 xid) * * Note: May sleep if invoked from outside a response handler. */ -static void fc_exch_done(struct fc_seq *sp) +void fc_exch_done(struct fc_seq *sp) { struct fc_exch *ep = fc_seq_exch(sp); int rc; @@ -982,6 +982,7 @@ static void fc_exch_done(struct fc_seq *sp) if (!rc) fc_exch_delete(ep); } +EXPORT_SYMBOL(fc_exch_done); /** * fc_exch_resp() - Allocate a new exchange for a response frame @@ -2654,9 +2655,6 @@ int fc_exch_init(struct fc_lport *lport) if (!lport->tt.seq_set_resp) lport->tt.seq_set_resp = fc_seq_set_resp; - if (!lport->tt.exch_done) - lport->tt.exch_done = fc_exch_done; - if (!lport->tt.exch_mgr_reset) lport->tt.exch_mgr_reset = fc_exch_mgr_reset; diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index 2bb3f9f74ad2..4fadd6249700 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -311,7 +311,7 @@ static int fc_fcp_send_abort(struct fc_fcp_pkt *fsp) static void fc_fcp_retry_cmd(struct fc_fcp_pkt *fsp, int status_code) { if (fsp->seq_ptr) { - fsp->lp->tt.exch_done(fsp->seq_ptr); + fc_exch_done(fsp->seq_ptr); fsp->seq_ptr = NULL; } @@ -1036,7 +1036,7 @@ static void fc_fcp_complete_locked(struct fc_fcp_pkt *fsp) fc_seq_send(lport, csp, conf_frame); } } - lport->tt.exch_done(seq); + fc_exch_done(seq); } /* * Some resets driven by SCSI are not I/Os and do not have @@ -1054,10 +1054,8 @@ static void fc_fcp_complete_locked(struct fc_fcp_pkt *fsp) */ static void fc_fcp_cleanup_cmd(struct fc_fcp_pkt *fsp, int error) { - struct fc_lport *lport = fsp->lp; - if (fsp->seq_ptr) { - lport->tt.exch_done(fsp->seq_ptr); + fc_exch_done(fsp->seq_ptr); fsp->seq_ptr = NULL; } fsp->status_code = error; @@ -1349,7 +1347,7 @@ static int fc_lun_reset(struct fc_lport *lport, struct fc_fcp_pkt *fsp, spin_lock_bh(&fsp->scsi_pkt_lock); if (fsp->seq_ptr) { - lport->tt.exch_done(fsp->seq_ptr); + fc_exch_done(fsp->seq_ptr); fsp->seq_ptr = NULL; } fsp->wait_for_comp = 0; @@ -1403,7 +1401,7 @@ static void fc_tm_done(struct fc_seq *seq, struct fc_frame *fp, void *arg) if (fh->fh_type != FC_TYPE_BLS) fc_fcp_resp(fsp, fp); fsp->seq_ptr = NULL; - fsp->lp->tt.exch_done(seq); + fc_exch_done(seq); out_unlock: fc_fcp_unlock_pkt(fsp); out: @@ -1793,9 +1791,9 @@ static void fc_fcp_srr_resp(struct fc_seq *seq, struct fc_frame *fp, void *arg) fh = fc_frame_header_get(fp); /* - * BUG? fc_fcp_srr_error calls exch_done which would release + * BUG? fc_fcp_srr_error calls fc_exch_done which would release * the ep. But if fc_fcp_srr_error had got -FC_EX_TIMEOUT, - * then fc_exch_timeout would be sending an abort. The exch_done + * then fc_exch_timeout would be sending an abort. The fc_exch_done * call by fc_fcp_srr_error would prevent fc_exch.c from seeing * an abort response though. */ @@ -1816,7 +1814,7 @@ static void fc_fcp_srr_resp(struct fc_seq *seq, struct fc_frame *fp, void *arg) } fc_fcp_unlock_pkt(fsp); out: - fsp->lp->tt.exch_done(seq); + fc_exch_done(seq); fc_frame_free(fp); } @@ -1846,7 +1844,7 @@ static void fc_fcp_srr_error(struct fc_fcp_pkt *fsp, struct fc_frame *fp) } fc_fcp_unlock_pkt(fsp); out: - fsp->lp->tt.exch_done(fsp->recov_seq); + fc_exch_done(fsp->recov_seq); } /** diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index 7315675d3e33..2d3133f62463 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -980,7 +980,7 @@ drop: FC_LPORT_DBG(lport, "dropping unexpected frame type %x\n", fh->fh_type); fc_frame_free(fp); if (sp) - lport->tt.exch_done(sp); + fc_exch_done(sp); } EXPORT_SYMBOL(fc_lport_recv); diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index 42f09ca5db1a..7f6562638abf 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -177,7 +177,7 @@ int ft_queue_status(struct se_cmd *se_cmd) se_cmd->scsi_status = SAM_STAT_TASK_SET_FULL; return -ENOMEM; } - lport->tt.exch_done(cmd->seq); + fc_exch_done(cmd->seq); /* * Drop the extra ACK_KREF reference taken by target_submit_cmd() * ahead of ft_check_stop_free() -> transport_generic_free_cmd() @@ -324,7 +324,7 @@ static void ft_send_resp_status(struct fc_lport *lport, sp = fr_seq(fp); if (sp) { fc_seq_send(lport, sp, fp); - lport->tt.exch_done(sp); + fc_exch_done(sp); } else { lport->tt.frame_send(lport, fp); } diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index 50d1af1eba1e..19f38eb318ec 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -514,14 +514,6 @@ struct libfc_function_template { */ void (*get_lesb)(struct fc_lport *, struct fc_els_lesb *lesb); - /* - * Indicate that an exchange/sequence tuple is complete and the memory - * allocated for the related objects may be freed. - * - * STATUS: OPTIONAL - */ - void (*exch_done)(struct fc_seq *); - /* * Start a new sequence on the same exchange/sequence tuple. * @@ -1040,6 +1032,7 @@ void fc_exch_recv(struct fc_lport *, struct fc_frame *); void fc_exch_mgr_reset(struct fc_lport *, u32 s_id, u32 d_id); int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp, struct fc_frame *fp); int fc_seq_exch_abort(const struct fc_seq *, unsigned int timer_msec); +void fc_exch_done(struct fc_seq *sp); /* * Functions for fc_functions_template -- 2.20.1