[PATCH v3 00/88] Call scsi_done() directly

[PATCH v3 00/88] Call scsi_done() directly

[Bart Van Assche]

Hi Martin,

This patch series increases IOPS by 5% on my test setup in a single-threaded
test with queue depth 1 on top of the scsi_debug driver. Please consider this
patch series for kernel v5.16.

Thanks,

Bart.

Changes compared to v2:
- Removed a WARN_ON() statement from patch 1.
- Added a patch to fix a compiler warning in drivers/scsi/ncr53c8xx.c.
- Added three patches that remove the second argument of the
  queuecommand_lck() functions.
- Added more Reviewed-by / Acked-by tags.

Changes compared to v1:
- Inserted the SUBMITTED_BY_ prefix in front of the enumeration constants
  introduced in patch 1.
- Reworked the fas216 patch such that the scsi_done pointer is preserved.
- Moved some SCSI core changes from the start of this series to the end to
  improve bisectability of this series.
- Added explicit initialization of the new "submitter" member variable instead
  of relying on implicit initialization.
- Added Reviewed-by/Acked-by tags.

Bart Van Assche (88):
  scsi: core: Use a structure member to track the SCSI command submitter
  scsi: core: Rename scsi_mq_done() into scsi_done() and export it
  ata: Call scsi_done() directly
  firewire: sbp2: Call scsi_done() directly
  ib_srp: Call scsi_done() directly
  message: fusion: Call scsi_done() directly
  zfcp_scsi: Call scsi_done() directly
  3w-9xxx: Call scsi_done() directly
  3w-sas: Call scsi_done() directly
  3w-xxxx: Call scsi_done() directly
  53c700: Call scsi_done() directly
  BusLogic: Call scsi_done() directly
  NCR5380: Call scsi_done() directly
  a100u2w: Call scsi_done() directly
  aacraid: Introduce aac_scsi_done()
  aacraid: Call scsi_done() directly
  acornscsi: Call scsi_done() directly
  advansys: Call scsi_done() directly
  aha152x: Call scsi_done() directly
  aha1542: Call scsi_done() directly
  aic7xxx: Call scsi_done() directly
  arcmsr: Call scsi_done() directly
  atp870u: Call scsi_done() directly
  bfa: Call scsi_done() directly
  bnx2fc: Call scsi_done() directly
  csiostor: Call scsi_done() directly
  cxlflash: Call scsi_done() directly
  dc395x: Call scsi_done() directly
  dpt_i2o: Call scsi_done() directly
  esas2r: Call scsi_done() directly
  esp_scsi: Call scsi_done() directly
  fas216: Introduce struct fas216_cmd_priv
  fas216: Stop using scsi_cmnd.scsi_done
  fdomain: Call scsi_done() directly
  fnic: Call scsi_done() directly
  hpsa: Call scsi_done() directly
  hptiop: Call scsi_done() directly
  ibmvscsi: Call scsi_done() directly
  imm: Call scsi_done() directly
  initio: Call scsi_done() directly
  ipr: Call scsi_done() directly
  ips: Call scsi_done() directly
  libfc: Call scsi_done() directly
  libiscsi: Call scsi_done() directly
  libsas: Call scsi_done() directly
  lpfc: Call scsi_done() directly
  mac53c94: Call scsi_done() directly
  megaraid: Call scsi_done() directly
  megaraid: Call scsi_done() directly
  mesh: Call scsi_done() directly
  mpi3mr: Call scsi_done() directly
  mpt3sas: Call scsi_done() directly
  mvumi: Call scsi_done() directly
  myrb: Call scsi_done() directly
  myrs: Call scsi_done() directly
  ncr53c8xx: Remove unused code
  ncr53c8xx: Call scsi_done() directly
  nsp32: Call scsi_done() directly
  pcmcia: Call scsi_done() directly
  pmcraid: Call scsi_done() directly
  ppa: Call scsi_done() directly
  ps3rom: Call scsi_done() directly
  qedf: Call scsi_done() directly
  qla1280: Call scsi_done() directly
  qla2xxx: Call scsi_done() directly
  qla4xxx: Call scsi_done() directly
  qlogicfas408: Call scsi_done() directly
  qlogicpti: Call scsi_done() directly
  scsi_debug: Call scsi_done() directly
  smartpqi: Call scsi_done() directly
  snic: Call scsi_done() directly
  stex: Call scsi_done() directly
  storvsc_drv: Call scsi_done() directly
  sym53c8xx_2: Call scsi_done() directly
  ufs: Call scsi_done() directly
  virtio_scsi: Call scsi_done() directly
  vmw_pvscsi: Call scsi_done() directly
  wd33c93: Call scsi_done() directly
  wd719x: Call scsi_done() directly
  xen-scsifront: Call scsi_done() directly
  staging: rts5208: Call scsi_done() directly
  staging: unisys: visorhba: Call scsi_done() directly
  target/tcm_loop: Call scsi_done() directly
  usb: Call scsi_done() directly
  scsi: core: Call scsi_done directly
  isci: Remove a declaration
  fas216: Introduce the function fas216_queue_command_internal()
  scsi: Remove the 'done' argument from SCSI queuecommand_lck functions

 drivers/ata/libata-sata.c                     |   2 +-
 drivers/ata/libata-scsi.c                     |  14 +-
 drivers/firewire/sbp2.c                       |   2 +-
 drivers/infiniband/ulp/srp/ib_srp.c           |   8 +-
 drivers/message/fusion/mptfc.c                |   6 +-
 drivers/message/fusion/mptsas.c               |   2 +-
 drivers/message/fusion/mptscsih.c             |  10 +-
 drivers/message/fusion/mptspi.c               |   4 +-
 drivers/s390/scsi/zfcp_fsf.c                  |   2 +-
 drivers/s390/scsi/zfcp_scsi.c                 |   4 +-
 drivers/scsi/3w-9xxx.c                        |  10 +-
 drivers/scsi/3w-sas.c                         |  10 +-
 drivers/scsi/3w-xxxx.c                        |  16 +--
 drivers/scsi/53c700.c                         |   8 +-
 drivers/scsi/BusLogic.c                       |  13 +-
 drivers/scsi/NCR5380.c                        |  12 +-
 drivers/scsi/a100u2w.c                        |   5 +-
 drivers/scsi/aacraid/aachba.c                 |  53 +++++---
 drivers/scsi/advansys.c                       |   6 +-
 drivers/scsi/aha152x.c                        |  29 +++--
 drivers/scsi/aha1542.c                        |  10 +-
 drivers/scsi/aha1740.c                        |   4 +-
 drivers/scsi/aic7xxx/aic79xx_osm.c            |   6 +-
 drivers/scsi/aic7xxx/aic7xxx_osm.c            |   6 +-
 drivers/scsi/arcmsr/arcmsr_hba.c              |  20 ++-
 drivers/scsi/arm/acornscsi.c                  |  20 +--
 drivers/scsi/arm/arxescsi.c                   |   1 +
 drivers/scsi/arm/cumana_2.c                   |   1 +
 drivers/scsi/arm/eesox.c                      |   1 +
 drivers/scsi/arm/fas216.c                     |  26 ++--
 drivers/scsi/arm/fas216.h                     |  10 ++
 drivers/scsi/arm/powertec.c                   |   2 +-
 drivers/scsi/atp870u.c                        |  17 +--
 drivers/scsi/bfa/bfad_im.c                    |  12 +-
 drivers/scsi/bnx2fc/bnx2fc_io.c               |   8 +-
 drivers/scsi/csiostor/csio_scsi.c             |   8 +-
 drivers/scsi/cxlflash/main.c                  |   6 +-
 drivers/scsi/dc395x.c                         |  11 +-
 drivers/scsi/dpt_i2o.c                        |  13 +-
 drivers/scsi/esas2r/esas2r_main.c             |   8 +-
 drivers/scsi/esp_scsi.c                       |  12 +-
 drivers/scsi/fdomain.c                        |   2 +-
 drivers/scsi/fnic/fnic_scsi.c                 | 122 ++++++++----------
 drivers/scsi/hosts.c                          |   2 +-
 drivers/scsi/hpsa.c                           |  12 +-
 drivers/scsi/hptiop.c                         |  10 +-
 drivers/scsi/ibmvscsi/ibmvfc.c                |   8 +-
 drivers/scsi/ibmvscsi/ibmvscsi.c              |   4 +-
 drivers/scsi/imm.c                            |   6 +-
 drivers/scsi/initio.c                         |   7 +-
 drivers/scsi/ipr.c                            |  10 +-
 drivers/scsi/ips.c                            |  31 +++--
 drivers/scsi/isci/task.h                      |   4 -
 drivers/scsi/libfc/fc_fcp.c                   |   6 +-
 drivers/scsi/libiscsi.c                       |   4 +-
 drivers/scsi/libsas/sas_scsi_host.c           |   4 +-
 drivers/scsi/lpfc/lpfc_scsi.c                 |   8 +-
 drivers/scsi/mac53c94.c                       |   6 +-
 drivers/scsi/megaraid.c                       |  24 ++--
 drivers/scsi/megaraid/megaraid_mbox.c         |  13 +-
 drivers/scsi/megaraid/megaraid_sas_base.c     |  16 +--
 drivers/scsi/megaraid/megaraid_sas_fusion.c   |   6 +-
 drivers/scsi/mesh.c                           |  18 +--
 drivers/scsi/mpi3mr/mpi3mr_os.c               |  26 ++--
 drivers/scsi/mpt3sas/mpt3sas_scsih.c          |  18 +--
 drivers/scsi/mvumi.c                          |   4 +-
 drivers/scsi/myrb.c                           |  32 ++---
 drivers/scsi/myrs.c                           |  10 +-
 drivers/scsi/ncr53c8xx.c                      |  29 +----
 drivers/scsi/nsp32.c                          |   7 +-
 drivers/scsi/pcmcia/nsp_cs.c                  |   7 +-
 drivers/scsi/pcmcia/sym53c500_cs.c            |   6 +-
 drivers/scsi/pmcraid.c                        |  16 +--
 drivers/scsi/ppa.c                            |   6 +-
 drivers/scsi/ps3rom.c                         |   8 +-
 drivers/scsi/qedf/qedf_io.c                   |  19 +--
 drivers/scsi/qla1280.c                        |   8 +-
 drivers/scsi/qla2xxx/qla_os.c                 |   8 +-
 drivers/scsi/qla4xxx/ql4_os.c                 |   4 +-
 drivers/scsi/qlogicfas408.c                   |   7 +-
 drivers/scsi/qlogicpti.c                      |   7 +-
 drivers/scsi/scsi_debug.c                     |   8 +-
 drivers/scsi/scsi_error.c                     |  17 +--
 drivers/scsi/scsi_lib.c                       |  16 ++-
 drivers/scsi/scsi_priv.h                      |   1 +
 drivers/scsi/smartpqi/smartpqi_init.c         |   2 +-
 drivers/scsi/snic/snic_scsi.c                 |  33 ++---
 drivers/scsi/stex.c                           |  10 +-
 drivers/scsi/storvsc_drv.c                    |   4 +-
 drivers/scsi/sym53c8xx_2/sym_glue.c           |   6 +-
 drivers/scsi/ufs/ufshcd.c                     |   6 +-
 drivers/scsi/virtio_scsi.c                    |   7 +-
 drivers/scsi/vmw_pvscsi.c                     |   9 +-
 drivers/scsi/wd33c93.c                        |  18 +--
 drivers/scsi/wd719x.c                         |   4 +-
 drivers/scsi/xen-scsifront.c                  |   4 +-
 drivers/staging/rts5208/rtsx.c                |   9 +-
 .../staging/unisys/visorhba/visorhba_main.c   |  19 ++-
 drivers/target/loopback/tcm_loop.c            |   4 +-
 drivers/usb/image/microtek.c                  |   5 +-
 drivers/usb/storage/scsiglue.c                |   5 +-
 drivers/usb/storage/uas.c                     |  13 +-
 drivers/usb/storage/usb.c                     |   4 +-
 include/scsi/scsi_cmnd.h                      |  13 +-
 include/scsi/scsi_host.h                      |   2 +-
 105 files changed, 531 insertions(+), 651 deletions(-)

[PATCH v3 01/88] scsi: core: Use a structure member to track the SCSI command submitter

[Bart Van Assche]

Conditional statements are faster than indirect calls. Use a structure
member to track the SCSI command submitter such that later patches can
call scsi_done(scmd) instead of scmd->scsi_done(scmd).

The asymmetric behavior that scsi_send_eh_cmnd() sets the submission
context to the SCSI error handler and that it does not restore the
submission context to the SCSI core is retained.

Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/scsi_error.c | 17 ++++++-----------
 drivers/scsi/scsi_lib.c   | 10 ++++++++++
 drivers/scsi/scsi_priv.h  |  1 +
 include/scsi/scsi_cmnd.h  |  7 +++++++
 4 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index b6c86cce57bf..3de03925550e 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -50,8 +50,6 @@
 
 #include <asm/unaligned.h>
 
-static void scsi_eh_done(struct scsi_cmnd *scmd);
-
 /*
  * These should *probably* be handled by the host itself.
  * Since it is allowed to sleep, it probably should.
@@ -520,7 +518,8 @@ enum scsi_disposition scsi_check_sense(struct scsi_cmnd *scmd)
 		/* handler does not care. Drop down to default handling */
 	}
 
-	if (scmd->cmnd[0] == TEST_UNIT_READY && scmd->scsi_done != scsi_eh_done)
+	if (scmd->cmnd[0] == TEST_UNIT_READY &&
+	    scmd->submitter != SUBMITTED_BY_SCSI_ERROR_HANDLER)
 		/*
 		 * nasty: for mid-layer issued TURs, we need to return the
 		 * actual sense data without any recovery attempt.  For eh
@@ -782,7 +781,7 @@ static enum scsi_disposition scsi_eh_completed_normally(struct scsi_cmnd *scmd)
  * scsi_eh_done - Completion function for error handling.
  * @scmd:	Cmd that is done.
  */
-static void scsi_eh_done(struct scsi_cmnd *scmd)
+void scsi_eh_done(struct scsi_cmnd *scmd)
 {
 	struct completion *eh_action;
 
@@ -1082,7 +1081,7 @@ static enum scsi_disposition scsi_send_eh_cmnd(struct scsi_cmnd *scmd,
 	shost->eh_action = &done;
 
 	scsi_log_send(scmd);
-	scmd->scsi_done = scsi_eh_done;
+	scmd->submitter = SUBMITTED_BY_SCSI_ERROR_HANDLER;
 
 	/*
 	 * Lock sdev->state_mutex to avoid that scsi_device_quiesce() can
@@ -1109,6 +1108,7 @@ static enum scsi_disposition scsi_send_eh_cmnd(struct scsi_cmnd *scmd,
 	if (rtn) {
 		if (timeleft > stall_for) {
 			scsi_eh_restore_cmnd(scmd, &ses);
+
 			timeleft -= stall_for;
 			msleep(jiffies_to_msecs(stall_for));
 			goto retry;
@@ -2338,11 +2338,6 @@ void scsi_report_device_reset(struct Scsi_Host *shost, int channel, int target)
 }
 EXPORT_SYMBOL(scsi_report_device_reset);
 
-static void
-scsi_reset_provider_done_command(struct scsi_cmnd *scmd)
-{
-}
-
 /**
  * scsi_ioctl_reset: explicitly reset a host/bus/target/device
  * @dev:	scsi_device to operate on
@@ -2379,7 +2374,7 @@ scsi_ioctl_reset(struct scsi_device *dev, int __user *arg)
 	scsi_init_command(dev, scmd);
 	scmd->cmnd = scsi_req(rq)->cmd;
 
-	scmd->scsi_done		= scsi_reset_provider_done_command;
+	scmd->submitter = SUBMITTED_BY_SCSI_RESET_IOCTL;
 	memset(&scmd->sdb, 0, sizeof(scmd->sdb));
 
 	scmd->cmd_len			= 0;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 5f5ad22512f5..3fd24144b805 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1577,6 +1577,15 @@ static blk_status_t scsi_prepare_cmd(struct request *req)
 
 static void scsi_mq_done(struct scsi_cmnd *cmd)
 {
+	switch (cmd->submitter) {
+	case SUBMITTED_BY_BLOCK_LAYER:
+		break;
+	case SUBMITTED_BY_SCSI_ERROR_HANDLER:
+		return scsi_eh_done(cmd);
+	case SUBMITTED_BY_SCSI_RESET_IOCTL:
+		return;
+	}
+
 	if (unlikely(blk_should_fake_timeout(scsi_cmd_to_rq(cmd)->q)))
 		return;
 	if (unlikely(test_and_set_bit(SCMD_STATE_COMPLETE, &cmd->state)))
@@ -1683,6 +1692,7 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
 
 	scsi_set_resid(cmd, 0);
 	memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+	cmd->submitter = SUBMITTED_BY_BLOCK_LAYER;
 	cmd->scsi_done = scsi_mq_done;
 
 	blk_mq_start_request(req);
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 6d9152031a40..b7f963149352 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -84,6 +84,7 @@ void scsi_eh_ready_devs(struct Scsi_Host *shost,
 int scsi_eh_get_sense(struct list_head *work_q,
 		      struct list_head *done_q);
 int scsi_noretry_cmd(struct scsi_cmnd *scmd);
+void scsi_eh_done(struct scsi_cmnd *scmd);
 
 /* scsi_lib.c */
 extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index a2315aac93c7..893c24aab8e4 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -64,6 +64,12 @@ struct scsi_pointer {
 #define SCMD_STATE_COMPLETE	0
 #define SCMD_STATE_INFLIGHT	1
 
+enum scsi_cmnd_submitter {
+	SUBMITTED_BY_BLOCK_LAYER = 0,
+	SUBMITTED_BY_SCSI_ERROR_HANDLER = 1,
+	SUBMITTED_BY_SCSI_RESET_IOCTL = 2,
+} __packed;
+
 struct scsi_cmnd {
 	struct scsi_request req;
 	struct scsi_device *device;
@@ -89,6 +95,7 @@ struct scsi_cmnd {
 	unsigned char prot_op;
 	unsigned char prot_type;
 	unsigned char prot_flags;
+	enum scsi_cmnd_submitter submitter;
 
 	unsigned short cmd_len;
 	enum dma_data_direction sc_data_direction;

[PATCH v3 02/88] scsi: core: Rename scsi_mq_done() into scsi_done() and export it

[Bart Van Assche]

Since the removal of the legacy block layer there is only one completion
function left in the SCSI core, namely scsi_mq_done(). Rename it into
scsi_done(). Export that function to allow SCSI LLDs to call it directly.

Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/scsi_lib.c  | 5 +++--
 include/scsi/scsi_cmnd.h | 2 ++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 3fd24144b805..f690a2da21ea 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1575,7 +1575,7 @@ static blk_status_t scsi_prepare_cmd(struct request *req)
 	return scsi_cmd_to_driver(cmd)->init_command(cmd);
 }
 
-static void scsi_mq_done(struct scsi_cmnd *cmd)
+void scsi_done(struct scsi_cmnd *cmd)
 {
 	switch (cmd->submitter) {
 	case SUBMITTED_BY_BLOCK_LAYER:
@@ -1593,6 +1593,7 @@ static void scsi_mq_done(struct scsi_cmnd *cmd)
 	trace_scsi_dispatch_cmd_done(cmd);
 	blk_mq_complete_request(scsi_cmd_to_rq(cmd));
 }
+EXPORT_SYMBOL(scsi_done);
 
 static void scsi_mq_put_budget(struct request_queue *q, int budget_token)
 {
@@ -1693,7 +1694,7 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
 	scsi_set_resid(cmd, 0);
 	memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 	cmd->submitter = SUBMITTED_BY_BLOCK_LAYER;
-	cmd->scsi_done = scsi_mq_done;
+	cmd->scsi_done = scsi_done;
 
 	blk_mq_start_request(req);
 	reason = scsi_dispatch_cmd(cmd);
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 893c24aab8e4..4edaadc293a7 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -171,6 +171,8 @@ static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
 	return *(struct scsi_driver **)rq->rq_disk->private_data;
 }
 
+void scsi_done(struct scsi_cmnd *cmd);
+
 extern void scsi_finish_command(struct scsi_cmnd *cmd);
 
 extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,

[PATCH v3 03/88] ata: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/ata/libata-sata.c |  2 +-
 drivers/ata/libata-scsi.c | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c
index 8f3ff830ab0c..60418d872c12 100644
--- a/drivers/ata/libata-sata.c
+++ b/drivers/ata/libata-sata.c
@@ -1258,7 +1258,7 @@ int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap)
 		rc = __ata_scsi_queuecmd(cmd, ap->link.device);
 	else {
 		cmd->result = (DID_BAD_TARGET << 16);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 	return rc;
 }
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 1fb4611f7eeb..4afe1abc4709 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -634,7 +634,7 @@ static struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev,
 	qc = ata_qc_new_init(dev, scsi_cmd_to_rq(cmd)->tag);
 	if (qc) {
 		qc->scsicmd = cmd;
-		qc->scsidone = cmd->scsi_done;
+		qc->scsidone = scsi_done;
 
 		qc->sg = scsi_sglist(cmd);
 		qc->n_elem = scsi_sg_count(cmd);
@@ -643,7 +643,7 @@ static struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev,
 			qc->flags |= ATA_QCFLAG_QUIET;
 	} else {
 		cmd->result = (DID_OK << 16) | SAM_STAT_TASK_SET_FULL;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 
 	return qc;
@@ -1738,14 +1738,14 @@ static int ata_scsi_translate(struct ata_device *dev, struct scsi_cmnd *cmd,
 
 early_finish:
 	ata_qc_free(qc);
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	DPRINTK("EXIT - early finish (good or error)\n");
 	return 0;
 
 err_did:
 	ata_qc_free(qc);
 	cmd->result = (DID_ERROR << 16);
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 err_mem:
 	DPRINTK("EXIT - internal\n");
 	return 0;
@@ -4018,7 +4018,7 @@ int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev)
 	DPRINTK("bad CDB len=%u, scsi_op=0x%02x, max=%u\n",
 		scmd->cmd_len, scsi_op, dev->cdb_len);
 	scmd->result = DID_ERROR << 16;
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 	return 0;
 }
 
@@ -4060,7 +4060,7 @@ int ata_scsi_queuecmd(struct Scsi_Host *shost, struct scsi_cmnd *cmd)
 		rc = __ata_scsi_queuecmd(cmd, dev);
 	else {
 		cmd->result = (DID_BAD_TARGET << 16);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 
 	spin_unlock_irqrestore(ap->lock, irq_flags);
@@ -4188,7 +4188,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
 		break;
 	}
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht)

[PATCH v3 04/88] firewire: sbp2: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/firewire/sbp2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 4d5054211550..aeed3f2273e8 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -1375,7 +1375,7 @@ static void complete_command_orb(struct sbp2_orb *base_orb,
 	sbp2_unmap_scatterlist(device->card->device, orb);
 
 	orb->cmd->result = result;
-	orb->cmd->scsi_done(orb->cmd);
+	scsi_done(orb->cmd);
 }
 
 static int sbp2_map_scatterlist(struct sbp2_command_orb *orb,

[PATCH v3 05/88] ib_srp: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 71eda91e810c..f8765f96ec1e 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1266,7 +1266,7 @@ static void srp_finish_req(struct srp_rdma_ch *ch, struct srp_request *req,
 	if (scmnd) {
 		srp_free_req(ch, req, scmnd, 0);
 		scmnd->result = result;
-		scmnd->scsi_done(scmnd);
+		scsi_done(scmnd);
 	}
 }
 
@@ -1987,7 +1987,7 @@ static void srp_process_rsp(struct srp_rdma_ch *ch, struct srp_rsp *rsp)
 		srp_free_req(ch, req, scmnd,
 			     be32_to_cpu(rsp->req_lim_delta));
 
-		scmnd->scsi_done(scmnd);
+		scsi_done(scmnd);
 	}
 }
 
@@ -2239,7 +2239,7 @@ static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd)
 
 err:
 	if (scmnd->result) {
-		scmnd->scsi_done(scmnd);
+		scsi_done(scmnd);
 		ret = 0;
 	} else {
 		ret = SCSI_MLQUEUE_HOST_BUSY;
@@ -2811,7 +2811,7 @@ static int srp_abort(struct scsi_cmnd *scmnd)
 	if (ret == SUCCESS) {
 		srp_free_req(ch, req, scmnd, 0);
 		scmnd->result = DID_ABORT << 16;
-		scmnd->scsi_done(scmnd);
+		scsi_done(scmnd);
 	}
 
 	return ret;

[PATCH v3 06/88] message: fusion: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/message/fusion/mptfc.c    |  6 +++---
 drivers/message/fusion/mptsas.c   |  2 +-
 drivers/message/fusion/mptscsih.c | 10 +++++-----
 drivers/message/fusion/mptspi.c   |  4 ++--
 4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index 572333fadd68..7a6278ae71d2 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -649,14 +649,14 @@ mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
 
 	if (!vdevice || !vdevice->vtarget) {
 		SCpnt->result = DID_NO_CONNECT << 16;
-		SCpnt->scsi_done(SCpnt);
+		scsi_done(SCpnt);
 		return 0;
 	}
 
 	err = fc_remote_port_chkready(rport);
 	if (unlikely(err)) {
 		SCpnt->result = err;
-		SCpnt->scsi_done(SCpnt);
+		scsi_done(SCpnt);
 		return 0;
 	}
 
@@ -664,7 +664,7 @@ mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
 	ri = *((struct mptfc_rport_info **)rport->dd_data);
 	if (unlikely(!ri)) {
 		SCpnt->result = DID_IMM_RETRY << 16;
-		SCpnt->scsi_done(SCpnt);
+		scsi_done(SCpnt);
 		return 0;
 	}
 
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 85285ba8e817..38a7cb0a3ecc 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1929,7 +1929,7 @@ mptsas_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
 
 	if (!vdevice || !vdevice->vtarget || vdevice->vtarget->deleted) {
 		SCpnt->result = DID_NO_CONNECT << 16;
-		SCpnt->scsi_done(SCpnt);
+		scsi_done(SCpnt);
 		return 0;
 	}
 
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index ce2e5b21978e..ab9611e775d3 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -1009,7 +1009,7 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
 	/* Unmap the DMA buffers, if any. */
 	scsi_dma_unmap(sc);
 
-	sc->scsi_done(sc);		/* Issue the command callback */
+	scsi_done(sc);			/* Issue the command callback */
 
 	/* Free Chain buffers */
 	mptscsih_freeChainBuffers(ioc, req_idx);
@@ -1054,7 +1054,7 @@ mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
 		dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
 		    "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
 		    "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
-		sc->scsi_done(sc);
+		scsi_done(sc);
 	}
 }
 EXPORT_SYMBOL(mptscsih_flush_running_cmds);
@@ -1118,7 +1118,7 @@ mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
 			   "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
 			   vdevice->vtarget->channel, vdevice->vtarget->id,
 			   sc, mf, ii));
-			sc->scsi_done(sc);
+			scsi_done(sc);
 			spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
 		}
 	}
@@ -1693,7 +1693,7 @@ mptscsih_abort(struct scsi_cmnd * SCpnt)
 	 */
 	if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
 		SCpnt->result = DID_RESET << 16;
-		SCpnt->scsi_done(SCpnt);
+		scsi_done(SCpnt);
 		printk(KERN_ERR MYNAM ": task abort: "
 		    "can't locate host! (sc=%p)\n", SCpnt);
 		return FAILED;
@@ -1710,7 +1710,7 @@ mptscsih_abort(struct scsi_cmnd * SCpnt)
 		    "task abort: device has been deleted (sc=%p)\n",
 		    ioc->name, SCpnt));
 		SCpnt->result = DID_NO_CONNECT << 16;
-		SCpnt->scsi_done(SCpnt);
+		scsi_done(SCpnt);
 		retval = SUCCESS;
 		goto out;
 	}
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
index af0ce5611e4a..44b7ce124ae1 100644
--- a/drivers/message/fusion/mptspi.c
+++ b/drivers/message/fusion/mptspi.c
@@ -782,14 +782,14 @@ mptspi_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
 
 	if (!vdevice || !vdevice->vtarget) {
 		SCpnt->result = DID_NO_CONNECT << 16;
-		SCpnt->scsi_done(SCpnt);
+		scsi_done(SCpnt);
 		return 0;
 	}
 
 	if (SCpnt->device->channel == 1 &&
 		mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) {
 		SCpnt->result = DID_NO_CONNECT << 16;
-		SCpnt->scsi_done(SCpnt);
+		scsi_done(SCpnt);
 		return 0;
 	}
 

[PATCH v3 07/88] zfcp_scsi: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Acked-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/s390/scsi/zfcp_fsf.c  | 2 +-
 drivers/s390/scsi/zfcp_scsi.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index c1f979296c1a..4f1e4385ce58 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -2501,7 +2501,7 @@ static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req)
 	zfcp_dbf_scsi_result(scpnt, req);
 
 	scpnt->host_scribble = NULL;
-	(scpnt->scsi_done) (scpnt);
+	scsi_done(scpnt);
 	/*
 	 * We must hold this lock until scsi_done has been called.
 	 * Otherwise we may call scsi_done after abort regarding this
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 9da9b2b2a580..e0a6d8c1f198 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -60,7 +60,7 @@ static void zfcp_scsi_command_fail(struct scsi_cmnd *scpnt, int result)
 {
 	set_host_byte(scpnt, result);
 	zfcp_dbf_scsi_fail_send(scpnt);
-	scpnt->scsi_done(scpnt);
+	scsi_done(scpnt);
 }
 
 static
@@ -78,7 +78,7 @@ int zfcp_scsi_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scpnt)
 	if (unlikely(scsi_result)) {
 		scpnt->result = scsi_result;
 		zfcp_dbf_scsi_fail_send(scpnt);
-		scpnt->scsi_done(scpnt);
+		scsi_done(scpnt);
 		return 0;
 	}
 

[PATCH v3 08/88] 3w-9xxx: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/3w-9xxx.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index e41cc354cc8a..4ebc2c79f45f 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1352,7 +1352,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance)
 				/* Now complete the io */
 				if (twa_command_mapped(cmd))
 					scsi_dma_unmap(cmd);
-				cmd->scsi_done(cmd);
+				scsi_done(cmd);
 				tw_dev->state[request_id] = TW_S_COMPLETED;
 				twa_free_request_id(tw_dev, request_id);
 				tw_dev->posted_request_count--;
@@ -1596,7 +1596,7 @@ static int twa_reset_device_extension(TW_Device_Extension *tw_dev)
 				cmd->result = (DID_RESET << 16);
 				if (twa_command_mapped(cmd))
 					scsi_dma_unmap(cmd);
-				cmd->scsi_done(cmd);
+				scsi_done(cmd);
 			}
 		}
 	}
@@ -1763,9 +1763,6 @@ static int twa_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_
 		goto out;
 	}
 
-	/* Save done function into scsi_cmnd struct */
-	SCpnt->scsi_done = done;
-
 	/* Get a free request id */
 	twa_get_request_id(tw_dev, &request_id);
 

[PATCH v3 09/88] 3w-sas: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/3w-sas.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
index 4fde39da54e4..e6f51904f5b1 100644
--- a/drivers/scsi/3w-sas.c
+++ b/drivers/scsi/3w-sas.c
@@ -1216,7 +1216,7 @@ static irqreturn_t twl_interrupt(int irq, void *dev_instance)
 
 			/* Now complete the io */
 			scsi_dma_unmap(cmd);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			tw_dev->state[request_id] = TW_S_COMPLETED;
 			twl_free_request_id(tw_dev, request_id);
 			tw_dev->posted_request_count--;
@@ -1369,7 +1369,7 @@ static int twl_reset_device_extension(TW_Device_Extension *tw_dev, int ioctl_res
 			if (cmd) {
 				cmd->result = (DID_RESET << 16);
 				scsi_dma_unmap(cmd);
-				cmd->scsi_done(cmd);
+				scsi_done(cmd);
 			}
 		}
 	}
@@ -1461,9 +1461,6 @@ static int twl_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_
 		goto out;
 	}
 
-	/* Save done function into scsi_cmnd struct */
-	SCpnt->scsi_done = done;
-
 	/* Get a free request id */
 	twl_get_request_id(tw_dev, &request_id);
 

[PATCH v3 10/88] 3w-xxxx: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/3w-xxxx.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 4ee485ab2714..bdd3ab8875e2 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -1160,7 +1160,7 @@ static int tw_setfeature(TW_Device_Extension *tw_dev, int parm, int param_size,
 		tw_dev->state[request_id] = TW_S_COMPLETED;
 		tw_state_request_finish(tw_dev, request_id);
 		tw_dev->srb[request_id]->result = (DID_OK << 16);
-		tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
+		scsi_done(tw_dev->srb[request_id]);
 	}
 	command_packet->byte8.param.sgl[0].address = param_value;
 	command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector);
@@ -1305,7 +1305,7 @@ static int tw_reset_device_extension(TW_Device_Extension *tw_dev)
 			if (srb != NULL) {
 				srb->result = (DID_RESET << 16);
 				scsi_dma_unmap(srb);
-				srb->scsi_done(srb);
+				scsi_done(srb);
 			}
 		}
 	}
@@ -1505,7 +1505,7 @@ static int tw_scsiop_mode_sense(TW_Device_Extension *tw_dev, int request_id)
 		tw_dev->state[request_id] = TW_S_COMPLETED;
 		tw_state_request_finish(tw_dev, request_id);
 		tw_dev->srb[request_id]->result = (DID_OK << 16);
-		tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
+		scsi_done(tw_dev->srb[request_id]);
 		return 0;
 	}
 
@@ -1796,7 +1796,7 @@ static int tw_scsiop_request_sense(TW_Device_Extension *tw_dev, int request_id)
 
 	/* If we got a request_sense, we probably want a reset, return error */
 	tw_dev->srb[request_id]->result = (DID_ERROR << 16);
-	tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
+	scsi_done(tw_dev->srb[request_id]);
 
 	return 0;
 } /* End tw_scsiop_request_sense() */
@@ -1929,9 +1929,6 @@ static int tw_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_c
 	if (test_bit(TW_IN_RESET, &tw_dev->flags))
 		return SCSI_MLQUEUE_HOST_BUSY;
 
-	/* Save done function into struct scsi_cmnd */
-	SCpnt->scsi_done = done;
-
 	/* Queue the command and get a request id */
 	tw_state_request_start(tw_dev, &request_id);
 
@@ -2165,7 +2162,7 @@ static irqreturn_t tw_interrupt(int irq, void *dev_instance)
 				/* Now complete the io */
 				if ((error != TW_ISR_DONT_COMPLETE)) {
 					scsi_dma_unmap(tw_dev->srb[request_id]);
-					tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
+					scsi_done(tw_dev->srb[request_id]);
 					tw_dev->state[request_id] = TW_S_COMPLETED;
 					tw_state_request_finish(tw_dev, request_id);
 					tw_dev->posted_request_count--;

[PATCH v3 11/88] 53c700: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/53c700.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index a12e3525977d..e7ed2fd6cdec 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -634,7 +634,7 @@ NCR_700_scsi_done(struct NCR_700_Host_Parameters *hostdata,
 
 		SCp->host_scribble = NULL;
 		SCp->result = result;
-		SCp->scsi_done(SCp);
+		scsi_done(SCp);
 	} else {
 		printk(KERN_ERR "53c700: SCSI DONE HAS NULL SCp\n");
 	}
@@ -1571,7 +1571,7 @@ NCR_700_intr(int irq, void *dev_id)
 				 * deadlock on the
 				 * hostdata->state_lock */
 				SCp->result = DID_RESET << 16;
-				SCp->scsi_done(SCp);
+				scsi_done(SCp);
 			}
 			mdelay(25);
 			NCR_700_chip_setup(host);
@@ -1792,7 +1792,6 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
 
 	slot->cmnd = SCp;
 
-	SCp->scsi_done = done;
 	SCp->host_scribble = (unsigned char *)slot;
 	SCp->SCp.ptr = NULL;
 	SCp->SCp.buffer = NULL;

[PATCH v3 12/88] BusLogic: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/BusLogic.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index 40088dcb98cd..7287a9081684 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -2624,7 +2624,7 @@ static void blogic_process_ccbs(struct blogic_adapter *adapter)
 					command->reset_chain;
 				command->reset_chain = NULL;
 				command->result = DID_RESET << 16;
-				command->scsi_done(command);
+				scsi_done(command);
 				command = nxt_cmd;
 			}
 #endif
@@ -2641,7 +2641,7 @@ static void blogic_process_ccbs(struct blogic_adapter *adapter)
 					blogic_dealloc_ccb(ccb, 1);
 					adapter->active_cmds[tgt_id]--;
 					command->result = DID_RESET << 16;
-					command->scsi_done(command);
+					scsi_done(command);
 				}
 			adapter->bdr_pend[tgt_id] = NULL;
 		} else {
@@ -2713,7 +2713,7 @@ static void blogic_process_ccbs(struct blogic_adapter *adapter)
 			/*
 			   Call the SCSI Command Completion Routine.
 			 */
-			command->scsi_done(command);
+			scsi_done(command);
 		}
 	}
 	adapter->processing_ccbs = false;
@@ -3038,7 +3038,6 @@ static int blogic_qcmd_lck(struct scsi_cmnd *command,
 		return SCSI_MLQUEUE_HOST_BUSY;
 	}
 	ccb->sensedata = sense_buf;
-	command->scsi_done = comp_cb;
 	if (blogic_multimaster_type(adapter)) {
 		/*
 		   Place the CCB in an Outgoing Mailbox. The higher levels
@@ -3060,7 +3059,7 @@ static int blogic_qcmd_lck(struct scsi_cmnd *command,
 				blogic_warn("Still unable to write Outgoing Mailbox - Host Adapter Dead?\n", adapter);
 				blogic_dealloc_ccb(ccb, 1);
 				command->result = DID_ERROR << 16;
-				command->scsi_done(command);
+				scsi_done(command);
 			}
 		}
 	} else {

[PATCH v3 13/88] NCR5380: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/NCR5380.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index a85589a2a8af..55af3e245a92 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -547,7 +547,7 @@ static void complete_cmd(struct Scsi_Host *instance,
 		hostdata->sensing = NULL;
 	}
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 /**
@@ -573,7 +573,7 @@ static int NCR5380_queue_command(struct Scsi_Host *instance,
 	case WRITE_10:
 		shost_printk(KERN_DEBUG, instance, "WRITE attempted with NDEBUG_NO_WRITE set\n");
 		cmd->result = (DID_ERROR << 16);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return 0;
 	}
 #endif /* (NDEBUG & NDEBUG_NO_WRITE) */
@@ -960,7 +960,7 @@ static irqreturn_t __maybe_unused NCR5380_intr(int irq, void *dev_id)
  * hostdata->connected will be set to cmd.
  * SELECT interrupt will be disabled.
  *
- * If failed (no target) : cmd->scsi_done() will be called, and the
+ * If failed (no target) : scsi_done() will be called, and the
  * cmd->result host byte set to DID_BAD_TARGET.
  */
 
@@ -2262,7 +2262,7 @@ static int NCR5380_abort(struct scsi_cmnd *cmd)
 		dsprintk(NDEBUG_ABORT, instance,
 		         "abort: removed %p from issue queue\n", cmd);
 		cmd->result = DID_ABORT << 16;
-		cmd->scsi_done(cmd); /* No tag or busy flag to worry about */
+		scsi_done(cmd); /* No tag or busy flag to worry about */
 		goto out;
 	}
 
@@ -2357,7 +2357,7 @@ static void bus_reset_cleanup(struct Scsi_Host *instance)
 	list_for_each_entry(ncmd, &hostdata->autosense, list) {
 		struct scsi_cmnd *cmd = NCR5380_to_scmd(ncmd);
 
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 	INIT_LIST_HEAD(&hostdata->autosense);
 
@@ -2400,7 +2400,7 @@ static int NCR5380_host_reset(struct scsi_cmnd *cmd)
 		struct scsi_cmnd *scmd = NCR5380_to_scmd(ncmd);
 
 		scmd->result = DID_RESET << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 	}
 	INIT_LIST_HEAD(&hostdata->unissued);
 

[PATCH v3 14/88] a100u2w: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/a100u2w.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
index 028af6b1057c..68343bcb4616 100644
--- a/drivers/scsi/a100u2w.c
+++ b/drivers/scsi/a100u2w.c
@@ -917,7 +917,6 @@ static int inia100_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_c
 	struct orc_host *host;		/* Point to Host adapter control block */
 
 	host = (struct orc_host *) cmd->device->host->hostdata;
-	cmd->scsi_done = done;
 	/* Get free SCSI control block  */
 	if ((scb = orc_alloc_scb(host)) == NULL)
 		return SCSI_MLQUEUE_HOST_BUSY;
@@ -1042,7 +1041,7 @@ static void inia100_scb_handler(struct orc_host *host, struct orc_scb *scb)
 	}
 	cmd->result = scb->tastat | (scb->hastat << 16);
 	scsi_dma_unmap(cmd);
-	cmd->scsi_done(cmd);	/* Notify system DONE           */
+	scsi_done(cmd);		/* Notify system DONE           */
 	orc_release_scb(host, scb);	/* Release SCB for current channel */
 }
 

[PATCH v3 15/88] aacraid: Introduce aac_scsi_done()

[Bart Van Assche]

This patch does not change any functionality but makes the next patch in
this series easier to read.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/aacraid/aachba.c | 39 ++++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 17 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index c2d6f0a9e0b1..40b86acac17b 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -517,6 +517,11 @@ int aac_get_containers(struct aac_dev *dev)
 	return status;
 }
 
+static void aac_scsi_done(struct scsi_cmnd *scmd)
+{
+	scmd->scsi_done(scmd);
+}
+
 static void get_container_name_callback(void *context, struct fib * fibptr)
 {
 	struct aac_get_name_resp * get_name_reply;
@@ -558,7 +563,7 @@ static void get_container_name_callback(void *context, struct fib * fibptr)
 	scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
 
 	aac_fib_complete(fibptr);
-	scsicmd->scsi_done(scsicmd);
+	aac_scsi_done(scsicmd);
 }
 
 /*
@@ -614,7 +619,7 @@ static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 		return aac_scsi_cmd(scsicmd);
 
 	scsicmd->result = DID_NO_CONNECT << 16;
-	scsicmd->scsi_done(scsicmd);
+	aac_scsi_done(scsicmd);
 	return 0;
 }
 
@@ -1094,7 +1099,7 @@ static void get_container_serial_callback(void *context, struct fib * fibptr)
 	scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
 
 	aac_fib_complete(fibptr);
-	scsicmd->scsi_done(scsicmd);
+	aac_scsi_done(scsicmd);
 }
 
 /*
@@ -1197,7 +1202,7 @@ static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 		memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
 			     SCSI_SENSE_BUFFERSIZE));
-		cmd->scsi_done(cmd);
+		aac_scsi_done(cmd);
 		return 1;
 	}
 	return 0;
@@ -2392,7 +2397,7 @@ static void io_callback(void *context, struct fib * fibptr)
 	}
 	aac_fib_complete(fibptr);
 
-	scsicmd->scsi_done(scsicmd);
+	aac_scsi_done(scsicmd);
 }
 
 static int aac_read(struct scsi_cmnd * scsicmd)
@@ -2463,7 +2468,7 @@ static int aac_read(struct scsi_cmnd * scsicmd)
 		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
 			     SCSI_SENSE_BUFFERSIZE));
-		scsicmd->scsi_done(scsicmd);
+		aac_scsi_done(scsicmd);
 		return 0;
 	}
 
@@ -2489,7 +2494,7 @@ static int aac_read(struct scsi_cmnd * scsicmd)
 	 *	For some reason, the Fib didn't queue, return QUEUE_FULL
 	 */
 	scsicmd->result = DID_OK << 16 | SAM_STAT_TASK_SET_FULL;
-	scsicmd->scsi_done(scsicmd);
+	aac_scsi_done(scsicmd);
 	aac_fib_complete(cmd_fibcontext);
 	aac_fib_free(cmd_fibcontext);
 	return 0;
@@ -2554,7 +2559,7 @@ static int aac_write(struct scsi_cmnd * scsicmd)
 		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
 		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
 			     SCSI_SENSE_BUFFERSIZE));
-		scsicmd->scsi_done(scsicmd);
+		aac_scsi_done(scsicmd);
 		return 0;
 	}
 
@@ -2580,7 +2585,7 @@ static int aac_write(struct scsi_cmnd * scsicmd)
 	 *	For some reason, the Fib didn't queue, return QUEUE_FULL
 	 */
 	scsicmd->result = DID_OK << 16 | SAM_STAT_TASK_SET_FULL;
-	scsicmd->scsi_done(scsicmd);
+	aac_scsi_done(scsicmd);
 
 	aac_fib_complete(cmd_fibcontext);
 	aac_fib_free(cmd_fibcontext);
@@ -2621,7 +2626,7 @@ static void synchronize_callback(void *context, struct fib *fibptr)
 
 	aac_fib_complete(fibptr);
 	aac_fib_free(fibptr);
-	cmd->scsi_done(cmd);
+	aac_scsi_done(cmd);
 }
 
 static int aac_synchronize(struct scsi_cmnd *scsicmd)
@@ -2688,7 +2693,7 @@ static void aac_start_stop_callback(void *context, struct fib *fibptr)
 
 	aac_fib_complete(fibptr);
 	aac_fib_free(fibptr);
-	scsicmd->scsi_done(scsicmd);
+	aac_scsi_done(scsicmd);
 }
 
 static int aac_start_stop(struct scsi_cmnd *scsicmd)
@@ -2702,7 +2707,7 @@ static int aac_start_stop(struct scsi_cmnd *scsicmd)
 	if (!(aac->supplement_adapter_info.supported_options2 &
 	      AAC_OPTION_POWER_MANAGEMENT)) {
 		scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
-		scsicmd->scsi_done(scsicmd);
+		aac_scsi_done(scsicmd);
 		return 0;
 	}
 
@@ -3237,7 +3242,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 
 scsi_done_ret:
 
-	scsicmd->scsi_done(scsicmd);
+	aac_scsi_done(scsicmd);
 	return 0;
 }
 
@@ -3546,7 +3551,7 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
 	scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
 
 	aac_fib_complete(fibptr);
-	scsicmd->scsi_done(scsicmd);
+	aac_scsi_done(scsicmd);
 }
 
 static void hba_resp_task_complete(struct aac_dev *dev,
@@ -3686,7 +3691,7 @@ void aac_hba_callback(void *context, struct fib *fibptr)
 	if (fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF)
 		scsicmd->SCp.sent_command = 1;
 	else
-		scsicmd->scsi_done(scsicmd);
+		aac_scsi_done(scsicmd);
 }
 
 /**
@@ -3706,7 +3711,7 @@ static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
 	if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
 			scsicmd->device->lun > 7) {
 		scsicmd->result = DID_NO_CONNECT << 16;
-		scsicmd->scsi_done(scsicmd);
+		aac_scsi_done(scsicmd);
 		return 0;
 	}
 
@@ -3747,7 +3752,7 @@ static int aac_send_hba_fib(struct scsi_cmnd *scsicmd)
 	if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
 			scsicmd->device->lun > AAC_MAX_LUN - 1) {
 		scsicmd->result = DID_NO_CONNECT << 16;
-		scsicmd->scsi_done(scsicmd);
+		aac_scsi_done(scsicmd);
 		return 0;
 	}
 

[PATCH v3 16/88] aacraid: Call scsi_done() directly

[Bart Van Assche]

The aacraid driver invokes scmd->scsi_done(scmd) for two types of SCSI
commands:
* SCSI commands initialized by the SCSI mid-layer.
* SCSI commands initialized by aac_probe_container().

The processing sequence for SCSI commands allocated by
aac_probe_container() is as follows:

aac_probe_container()
-> _aac_probe_container(scmd, aac_probe_container_callback1)
  -> scmd->SCp.ptr = aac_probe_container_callback1
  -> aac_fib_send(..., _aac_probe_container1, scmd)
    -> fibptr->callback = _aac_probe_container1
    -> fibptr->callback_data = scmd

fibptr->callback(scmd)
-> _aac_probe_container1(scmd, fibptr)
   [ ... ]
   -> _aac_probe_container2(scmd, fibptr)
     -> Call scmd->SCp.ptr == aac_probe_container_callback1
       -> scmd->device = NULL;

The processing sequence for SCSI commands allocated by the SCSI mid-layer
if _aac_probe_container() is called is as follows:

aac_queuecommand()
-> aac_scsi_cmd()
  -> _aac_probe_container(scmd, aac_probe_container_callback2)
    -> scmd->SCp.ptr = aac_probe_container_callback2
    -> aac_fib_send(..., _aac_probe_container1, scmd)

fibptr->callback(scmd)
-> _aac_probe_container1(scmd, fibptr)
   [ ... ]
   -> _aac_probe_container2(scmd, fibptr)
     -> Call scmd->SCp.ptr == aac_probe_container_callback2

Preserve the existing call sequences by calling scsi_done() for commands
submitted by the mid-layer or aac_probe_container_scsi_done() for commands
submitted by aac_probe_container().

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/aacraid/aachba.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 40b86acac17b..59f6b7b2a70a 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -223,6 +223,7 @@ static long aac_build_sghba(struct scsi_cmnd *scsicmd,
 				int sg_max, u64 sg_address);
 static int aac_convert_sgraw2(struct aac_raw_io2 *rio2,
 				int pages, int nseg, int nseg_new);
+static void aac_probe_container_scsi_done(struct scsi_cmnd *scsi_cmnd);
 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
 static int aac_send_hba_fib(struct scsi_cmnd *scsicmd);
 #ifdef AAC_DETAILED_STATUS_INFO
@@ -332,7 +333,7 @@ static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
 		struct fib *fibptr) {
 	struct scsi_device *device;
 
-	if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
+	if (unlikely(!scsicmd)) {
 		dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
 		aac_fib_complete(fibptr);
 		return 0;
@@ -519,7 +520,13 @@ int aac_get_containers(struct aac_dev *dev)
 
 static void aac_scsi_done(struct scsi_cmnd *scmd)
 {
-	scmd->scsi_done(scmd);
+	if (scmd->device->request_queue) {
+		/* SCSI command has been submitted by the SCSI mid-layer. */
+		scsi_done(scmd);
+	} else {
+		/* SCSI command has been submitted by aac_probe_container(). */
+		aac_probe_container_scsi_done(scmd);
+	}
 }
 
 static void get_container_name_callback(void *context, struct fib * fibptr)
@@ -809,8 +816,8 @@ static void aac_probe_container_scsi_done(struct scsi_cmnd *scsi_cmnd)
 
 int aac_probe_container(struct aac_dev *dev, int cid)
 {
-	struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
-	struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
+	struct scsi_cmnd *scsicmd = kzalloc(sizeof(*scsicmd), GFP_KERNEL);
+	struct scsi_device *scsidev = kzalloc(sizeof(*scsidev), GFP_KERNEL);
 	int status;
 
 	if (!scsicmd || !scsidev) {
@@ -818,7 +825,6 @@ int aac_probe_container(struct aac_dev *dev, int cid)
 		kfree(scsidev);
 		return -ENOMEM;
 	}
-	scsicmd->scsi_done = aac_probe_container_scsi_done;
 
 	scsicmd->device = scsidev;
 	scsidev->sdev_state = 0;

[PATCH v3 17/88] acornscsi: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/arm/acornscsi.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index 0cc62c1b0825..dadaf5ee0ea9 100644
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -841,13 +841,10 @@ static void acornscsi_done(AS_Host *host, struct scsi_cmnd **SCpntp,
 		}
 	}
 
-	if (!SCpnt->scsi_done)
-	    panic("scsi%d.H: null scsi_done function in acornscsi_done", host->host->host_no);
-
 	clear_bit(SCpnt->device->id * 8 +
 		  (u8)(SCpnt->device->lun & 0x7), host->busyluns);
 
-	SCpnt->scsi_done(SCpnt);
+	scsi_done(SCpnt);
     } else
 	printk("scsi%d: null command in acornscsi_done", host->host->host_no);
 
@@ -2428,7 +2425,6 @@ static int acornscsi_queuecmd_lck(struct scsi_cmnd *SCpnt,
     }
 #endif
 
-    SCpnt->scsi_done = done;
     SCpnt->host_scribble = NULL;
     SCpnt->result = 0;
     SCpnt->SCp.phase = (int)acornscsi_datadirection(SCpnt->cmnd[0]);

[PATCH v3 18/88] advansys: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/advansys.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index 2df2a843a5ff..f2f14fbd5069 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -3592,7 +3592,7 @@ static void asc_scsi_done(struct scsi_cmnd *scp)
 {
 	scsi_dma_unmap(scp);
 	ASC_STATS(scp->device->host, done);
-	scp->scsi_done(scp);
+	scsi_done(scp);
 }
 
 static void AscSetBank(PortAddr iop_base, uchar bank)
@@ -8460,7 +8460,6 @@ advansys_queuecommand_lck(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *
 	int asc_res, result = 0;
 
 	ASC_STATS(shost, queuecommand);
-	scp->scsi_done = done;
 
 	asc_res = asc_execute_scsi_cmnd(scp);
 

[PATCH v3 19/88] aha152x: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() and reset_done() directly. The changes in this patch are as
follows:
- Remove the 'done' argument from aha152x_internal_queue().
- Change ptr->scsi_done(ptr) into aha152x_scsi_done(ptr).
- Inside aha152x_scsi_done(), check the 'resetting' flag of SCp.phase
  since aha152x_internal_queue() specifies the 'reset_done' function
  pointer if and only if the third argument has the value 'resetting'.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/aha152x.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index b13b5c85f3de..f07de9912790 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -905,13 +905,11 @@ static int setup_expected_interrupts(struct Scsi_Host *shpnt)
  *  Queue a command and setup interrupts for a free bus.
  */
 static int aha152x_internal_queue(struct scsi_cmnd *SCpnt,
-				  struct completion *complete,
-				  int phase, void (*done)(struct scsi_cmnd *))
+				  struct completion *complete, int phase)
 {
 	struct Scsi_Host *shpnt = SCpnt->device->host;
 	unsigned long flags;
 
-	SCpnt->scsi_done	= done;
 	SCpnt->SCp.phase	= not_issued | phase;
 	SCpnt->SCp.Status	= 0x1; /* Ilegal status by SCSI standard */
 	SCpnt->SCp.Message	= 0;
@@ -980,7 +978,8 @@ static int aha152x_internal_queue(struct scsi_cmnd *SCpnt,
 static int aha152x_queue_lck(struct scsi_cmnd *SCpnt,
 			     void (*done)(struct scsi_cmnd *))
 {
-	return aha152x_internal_queue(SCpnt, NULL, 0, done);
+	WARN_ON_ONCE(done != scsi_done);
+	return aha152x_internal_queue(SCpnt, NULL, 0);
 }
 
 static DEF_SCSI_QCMD(aha152x_queue)
@@ -998,6 +997,14 @@ static void reset_done(struct scsi_cmnd *SCpnt)
 	}
 }
 
+static void aha152x_scsi_done(struct scsi_cmnd *SCpnt)
+{
+	if (SCpnt->SCp.phase & resetting)
+		reset_done(SCpnt);
+	else
+		scsi_done(SCpnt);
+}
+
 /*
  *  Abort a command
  *
@@ -1064,7 +1071,7 @@ static int aha152x_device_reset(struct scsi_cmnd * SCpnt)
 
 	SCpnt->cmd_len         = 0;
 
-	aha152x_internal_queue(SCpnt, &done, resetting, reset_done);
+	aha152x_internal_queue(SCpnt, &done, resetting);
 
 	timeleft = wait_for_completion_timeout(&done, 100*HZ);
 	if (!timeleft) {
@@ -1439,12 +1446,12 @@ static void busfree_run(struct Scsi_Host *shpnt)
 				scsi_eh_prep_cmnd(ptr, &sc->ses, NULL, 0, ~0);
 
 				DO_UNLOCK(flags);
-				aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);
+				aha152x_internal_queue(ptr, NULL, check_condition);
 				DO_LOCK(flags);
 			}
 		}
 
-		if(DONE_SC && DONE_SC->scsi_done) {
+		if (DONE_SC) {
 			struct scsi_cmnd *ptr = DONE_SC;
 			DONE_SC=NULL;
 
@@ -1453,13 +1460,13 @@ static void busfree_run(struct Scsi_Host *shpnt)
 			if (!HOSTDATA(shpnt)->commands)
 				SETPORT(PORTA, 0);	/* turn led off */
 
-			if(ptr->scsi_done != reset_done) {
+			if (!(ptr->SCp.phase & resetting)) {
 				kfree(ptr->host_scribble);
 				ptr->host_scribble=NULL;
 			}
 
 			DO_UNLOCK(flags);
-			ptr->scsi_done(ptr);
+			aha152x_scsi_done(ptr);
 			DO_LOCK(flags);
 		}
 
@@ -2258,7 +2265,7 @@ static void rsti_run(struct Scsi_Host *shpnt)
 			ptr->host_scribble=NULL;
 
 			set_host_byte(ptr, DID_RESET);
-			ptr->scsi_done(ptr);
+			aha152x_scsi_done(ptr);
 		}
 
 		ptr = next;

[PATCH v3 20/88] aha1542: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/aha1542.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c
index 584a59522038..8697f4720946 100644
--- a/drivers/scsi/aha1542.c
+++ b/drivers/scsi/aha1542.c
@@ -281,7 +281,6 @@ static irqreturn_t aha1542_interrupt(int irq, void *dev_id)
 {
 	struct Scsi_Host *sh = dev_id;
 	struct aha1542_hostdata *aha1542 = shost_priv(sh);
-	void (*my_done)(struct scsi_cmnd *) = NULL;
 	int errstatus, mbi, mbo, mbistatus;
 	int number_serviced;
 	unsigned long flags;
@@ -369,14 +368,13 @@ static irqreturn_t aha1542_interrupt(int irq, void *dev_id)
 
 		tmp_cmd = aha1542->int_cmds[mbo];
 
-		if (!tmp_cmd || !tmp_cmd->scsi_done) {
+		if (!tmp_cmd) {
 			spin_unlock_irqrestore(sh->host_lock, flags);
 			shost_printk(KERN_WARNING, sh, "Unexpected interrupt\n");
 			shost_printk(KERN_WARNING, sh, "tarstat=%x, hastat=%x idlun=%x ccb#=%d\n", ccb[mbo].tarstat,
 			       ccb[mbo].hastat, ccb[mbo].idlun, mbo);
 			return IRQ_HANDLED;
 		}
-		my_done = tmp_cmd->scsi_done;
 		aha1542_free_cmd(tmp_cmd);
 		/*
 		 * Fetch the sense data, and tuck it away, in the required slot.  The
@@ -410,7 +408,7 @@ static irqreturn_t aha1542_interrupt(int irq, void *dev_id)
 		aha1542->int_cmds[mbo] = NULL;	/* This effectively frees up the mailbox slot, as
 						 * far as queuecommand is concerned
 						 */
-		my_done(tmp_cmd);
+		scsi_done(tmp_cmd);
 		number_serviced++;
 	};
 }
@@ -431,7 +429,7 @@ static int aha1542_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
 	if (*cmd->cmnd == REQUEST_SENSE) {
 		/* Don't do the command - we have the sense data already */
 		cmd->result = 0;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return 0;
 	}
 #ifdef DEBUG
@@ -488,7 +486,7 @@ static int aha1542_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
 	aha1542->aha1542_last_mbo_used = mbo;
 
 #ifdef DEBUG
-	shost_printk(KERN_DEBUG, sh, "Sending command (%d %p)...", mbo, cmd->scsi_done);
+	shost_printk(KERN_DEBUG, sh, "Sending command (%d)...", mbo);
 #endif
 
 	/* This gets trashed for some reason */

[PATCH v3 21/88] aic7xxx: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/aic7xxx/aic79xx_osm.c | 3 +--
 drivers/scsi/aic7xxx/aic7xxx_osm.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 92ea24a075b8..af49c32cfaf7 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -581,7 +581,6 @@ ahd_linux_queue_lck(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd
 
 	ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
 
-	cmd->scsi_done = scsi_done;
 	cmd->result = CAM_REQ_INPROG << 16;
 	rtn = ahd_linux_run_command(ahd, dev, cmd);
 
@@ -2111,7 +2110,7 @@ ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd)
 
 	ahd_cmd_set_transaction_status(cmd, new_status);
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 static void
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 8b3d472aa3cc..f2daca41f3f2 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -530,7 +530,6 @@ ahc_linux_queue_lck(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd
 
 	ahc_lock(ahc, &flags);
 	if (ahc->platform_data->qfrozen == 0) {
-		cmd->scsi_done = scsi_done;
 		cmd->result = CAM_REQ_INPROG << 16;
 		rtn = ahc_linux_run_command(ahc, dev, cmd);
 	}
@@ -1986,7 +1985,7 @@ ahc_linux_queue_cmd_complete(struct ahc_softc *ahc, struct scsi_cmnd *cmd)
 		ahc_cmd_set_transaction_status(cmd, new_status);
 	}
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 static void

[PATCH v3 22/88] arcmsr: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/arcmsr/arcmsr_hba.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index ec1a834c922d..e2692ca87a6e 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -1318,7 +1318,7 @@ static void arcmsr_ccb_complete(struct CommandControlBlock *ccb)
 	spin_lock_irqsave(&acb->ccblist_lock, flags);
 	list_add_tail(&ccb->list, &acb->ccb_free_list);
 	spin_unlock_irqrestore(&acb->ccblist_lock, flags);
-	pcmd->scsi_done(pcmd);
+	scsi_done(pcmd);
 }
 
 static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
@@ -1598,7 +1598,7 @@ static void arcmsr_remove_scsi_devices(struct AdapterControlBlock *acb)
 		if (ccb->startdone == ARCMSR_CCB_START) {
 			ccb->pcmd->result = DID_NO_CONNECT << 16;
 			arcmsr_pci_unmap_dma(ccb);
-			ccb->pcmd->scsi_done(ccb->pcmd);
+			scsi_done(ccb->pcmd);
 		}
 	}
 	for (target = 0; target < ARCMSR_MAX_TARGETID; target++) {
@@ -3192,7 +3192,7 @@ static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
 
 		if (cmd->device->lun) {
 			cmd->result = (DID_TIME_OUT << 16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return;
 		}
 		inqdata[0] = TYPE_PROCESSOR;
@@ -3216,18 +3216,18 @@ static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
 		sg = scsi_sglist(cmd);
 		kunmap_atomic(buffer - sg->offset);
 
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 	break;
 	case WRITE_BUFFER:
 	case READ_BUFFER: {
 		if (arcmsr_iop_message_xfer(acb, cmd))
 			cmd->result = (DID_ERROR << 16);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 	break;
 	default:
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 }
 
@@ -3241,10 +3241,9 @@ static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
 
 	if (acb->acb_flags & ACB_F_ADAPTER_REMOVED) {
 		cmd->result = (DID_NO_CONNECT << 16);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return 0;
 	}
-	cmd->scsi_done = done;
 	cmd->host_scribble = NULL;
 	cmd->result = 0;
 	if (target == 16) {
@@ -3257,7 +3256,7 @@ static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
 		return SCSI_MLQUEUE_HOST_BUSY;
 	if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
 		cmd->result = (DID_ERROR << 16) | SAM_STAT_RESERVATION_CONFLICT;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return 0;
 	}
 	arcmsr_post_ccb(acb, ccb);

[PATCH v3 23/88] atp870u: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/atp870u.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 9d179cd15bb8..6e1595b32bc0 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -512,7 +512,7 @@ static irqreturn_t atp870u_intr_handle(int irq, void *dev_id)
 			scsi_dma_unmap(workreq);
 
 			spin_lock_irqsave(dev->host->host_lock, flags);
-			(*workreq->scsi_done) (workreq);
+			scsi_done(workreq);
 #ifdef ED_DBGP
 			   printk("workreq->scsi_done\n");
 #endif
@@ -654,17 +654,6 @@ static int atp870u_queuecommand_lck(struct scsi_cmnd *req_p,
 		return 0;
 	}
 
-	if (done) {
-		req_p->scsi_done = done;
-	} else {
-#ifdef ED_DBGP
-		printk( "atp870u_queuecommand: done can't be NULL\n");
-#endif
-		req_p->result = 0;
-		done(req_p);
-		return 0;
-	}
-
 	/*
 	 *	Count new command
 	 */

[PATCH v3 24/88] bfa: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/bfa/bfad_im.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index 6b5841b1c06e..e12ae60efd33 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -96,7 +96,7 @@ bfa_cb_ioim_done(void *drv, struct bfad_ioim_s *dio,
 		}
 	}
 
-	cmnd->scsi_done(cmnd);
+	scsi_done(cmnd);
 }
 
 void
@@ -124,7 +124,7 @@ bfa_cb_ioim_good_comp(void *drv, struct bfad_ioim_s *dio)
 		}
 	}
 
-	cmnd->scsi_done(cmnd);
+	scsi_done(cmnd);
 }
 
 void
@@ -226,7 +226,7 @@ bfad_im_abort_handler(struct scsi_cmnd *cmnd)
 			timeout *= 2;
 	}
 
-	cmnd->scsi_done(cmnd);
+	scsi_done(cmnd);
 	bfa_trc(bfad, hal_io->iotag);
 	BFA_LOG(KERN_INFO, bfad, bfa_log_level,
 		"scsi%d: complete abort 0x%p iotag 0x%x\n",
@@ -1233,8 +1233,6 @@ bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd
 	if (sg_cnt < 0)
 		return SCSI_MLQUEUE_HOST_BUSY;
 
-	cmnd->scsi_done = done;
-
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 	if (!(bfad->bfad_flags & BFAD_HAL_START_DONE)) {
 		printk(KERN_WARNING

[PATCH v3 25/88] bnx2fc: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/bnx2fc/bnx2fc_io.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index f2996a9b2f63..b9114113ee73 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -205,7 +205,7 @@ static void bnx2fc_scsi_done(struct bnx2fc_cmd *io_req, int err_code)
 		sc_cmd->allowed);
 	scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
 	sc_cmd->SCp.ptr = NULL;
-	sc_cmd->scsi_done(sc_cmd);
+	scsi_done(sc_cmd);
 }
 
 struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba)
@@ -1610,7 +1610,7 @@ void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
 	}
 
 	sc_cmd->SCp.ptr = NULL;
-	sc_cmd->scsi_done(sc_cmd);
+	scsi_done(sc_cmd);
 
 	kref_put(&io_req->refcount, bnx2fc_cmd_release);
 	if (io_req->wait_for_abts_comp) {
@@ -1853,7 +1853,7 @@ int bnx2fc_queuecommand(struct Scsi_Host *host,
 	rval = fc_remote_port_chkready(rport);
 	if (rval) {
 		sc_cmd->result = rval;
-		sc_cmd->scsi_done(sc_cmd);
+		scsi_done(sc_cmd);
 		return 0;
 	}
 
@@ -2019,7 +2019,7 @@ void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
 		break;
 	}
 	sc_cmd->SCp.ptr = NULL;
-	sc_cmd->scsi_done(sc_cmd);
+	scsi_done(sc_cmd);
 	kref_put(&io_req->refcount, bnx2fc_cmd_release);
 }
 

[PATCH v3 26/88] csiostor: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/csiostor/csio_scsi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c
index 3b2eb6ce1fcf..3978c3d7eed5 100644
--- a/drivers/scsi/csiostor/csio_scsi.c
+++ b/drivers/scsi/csiostor/csio_scsi.c
@@ -1720,7 +1720,7 @@ csio_scsi_err_handler(struct csio_hw *hw, struct csio_ioreq *req)
 	}
 
 	cmnd->result = (((host_status) << 16) | scsi_status);
-	cmnd->scsi_done(cmnd);
+	scsi_done(cmnd);
 
 	/* Wake up waiting threads */
 	csio_scsi_cmnd(req) = NULL;
@@ -1748,7 +1748,7 @@ csio_scsi_cbfn(struct csio_hw *hw, struct csio_ioreq *req)
 		}
 
 		cmnd->result = (((host_status) << 16) | scsi_status);
-		cmnd->scsi_done(cmnd);
+		scsi_done(cmnd);
 		csio_scsi_cmnd(req) = NULL;
 		CSIO_INC_STATS(csio_hw_to_scsim(hw), n_tot_success);
 	} else {
@@ -1876,7 +1876,7 @@ csio_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmnd)
 	return rv;
 
 err_done:
-	cmnd->scsi_done(cmnd);
+	scsi_done(cmnd);
 	return 0;
 }
 
@@ -1979,7 +1979,7 @@ csio_eh_abort_handler(struct scsi_cmnd *cmnd)
 		spin_unlock_irq(&hw->lock);
 
 		cmnd->result = (DID_ERROR << 16);
-		cmnd->scsi_done(cmnd);
+		scsi_done(cmnd);
 
 		return FAILED;
 	}

[PATCH v3 27/88] cxlflash: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/cxlflash/main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index b2730e859df8..2943cdd83614 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -171,7 +171,7 @@ static void cmd_complete(struct afu_cmd *cmd)
 
 		dev_dbg_ratelimited(dev, "%s:scp=%p result=%08x ioasc=%08x\n",
 				    __func__, scp, scp->result, cmd->sa.ioasc);
-		scp->scsi_done(scp);
+		scsi_done(scp);
 	} else if (cmd->cmd_tmf) {
 		spin_lock_irqsave(&cfg->tmf_slock, lock_flags);
 		cfg->tmf_active = false;
@@ -205,7 +205,7 @@ static void flush_pending_cmds(struct hwq *hwq)
 		if (cmd->scp) {
 			scp = cmd->scp;
 			scp->result = (DID_IMM_RETRY << 16);
-			scp->scsi_done(scp);
+			scsi_done(scp);
 		} else {
 			cmd->cmd_aborted = true;
 
@@ -601,7 +601,7 @@ static int cxlflash_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scp)
 	case STATE_FAILTERM:
 		dev_dbg_ratelimited(dev, "%s: device has failed\n", __func__);
 		scp->result = (DID_NO_CONNECT << 16);
-		scp->scsi_done(scp);
+		scsi_done(scp);
 		rc = 0;
 		goto out;
 	default:

[PATCH v3 28/88] dc395x: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/dc395x.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index 1c79e6c27163..5adbc7f61c19 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -995,8 +995,6 @@ static int dc395x_queue_command_lck(struct scsi_cmnd *cmd, void (*done)(struct s
 		goto complete;
 	}
 
-	/* set callback and clear result in the command */
-	cmd->scsi_done = done;
 	set_host_byte(cmd, DID_OK);
 	set_status_byte(cmd, SAM_STAT_GOOD);
 
@@ -3336,7 +3334,7 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 		dprintkl(KERN_ERR, "srb_done: ERROR! Completed cmd with tmp_srb\n");
 	}
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	waiting_process_next(acb);
 }
 
@@ -3367,7 +3365,7 @@ static void doing_srb_done(struct AdapterCtlBlk *acb, u8 did_flag,
 			if (force) {
 				/* For new EH, we normally don't need to give commands back,
 				 * as they all complete or all time out */
-				p->scsi_done(p);
+				scsi_done(p);
 			}
 		}
 		if (!list_empty(&dcb->srb_going_list))
@@ -3394,7 +3392,7 @@ static void doing_srb_done(struct AdapterCtlBlk *acb, u8 did_flag,
 			if (force) {
 				/* For new EH, we normally don't need to give commands back,
 				 * as they all complete or all time out */
-				cmd->scsi_done(cmd);
+				scsi_done(cmd);
 			}
 		}
 		if (!list_empty(&dcb->srb_waiting_list))

[PATCH v3 29/88] dpt_i2o: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/dpt_i2o.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 7af96d14c9bc..1f00afcfe440 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -421,7 +421,6 @@ static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd
 	adpt_hba* pHba = NULL;
 	struct adpt_device* pDev = NULL;	/* dpt per device information */
 
-	cmd->scsi_done = done;
 	/*
 	 * SCSI REQUEST_SENSE commands will be executed automatically by the 
 	 * Host Adapter for any errors, so they should not be executed 
@@ -431,7 +430,7 @@ static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd
 
 	if ((cmd->cmnd[0] == REQUEST_SENSE) && (cmd->sense_buffer[0] != 0)) {
 		cmd->result = (DID_OK << 16);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return 0;
 	}
 
@@ -456,7 +455,7 @@ static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd
 			// TODO: if any luns are at this bus, scsi id then fake a TEST_UNIT_READY and INQUIRY response 
 			// with type 7F (for all luns less than the max for this bus,id) so the lun scan will continue.
 			cmd->result = (DID_NO_CONNECT << 16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return 0;
 		}
 		cmd->device->hostdata = pDev;
@@ -2227,7 +2226,7 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_d
 			printk(KERN_WARNING"%s: scsi opcode 0x%x not supported.\n",
 			     pHba->name, cmd->cmnd[0]);
 			cmd->result = (DID_ERROR <<16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return 	0;
 		}
 	}
@@ -2451,9 +2450,7 @@ static void adpt_i2o_scsi_complete(void __iomem *reply, struct scsi_cmnd *cmd)
 
 	cmd->result |= (dev_status);
 
-	if(cmd->scsi_done != NULL){
-		cmd->scsi_done(cmd);
-	} 
+	scsi_done(cmd);
 }
 
 

[PATCH v3 30/88] esas2r: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/esas2r/esas2r_main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c
index 647f82898b6e..7a4eadad23d7 100644
--- a/drivers/scsi/esas2r/esas2r_main.c
+++ b/drivers/scsi/esas2r/esas2r_main.c
@@ -828,7 +828,7 @@ int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 
 	if (unlikely(test_bit(AF_DEGRADED_MODE, &a->flags))) {
 		cmd->result = DID_NO_CONNECT << 16;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return 0;
 	}
 
@@ -988,7 +988,7 @@ int esas2r_eh_abort(struct scsi_cmnd *cmd)
 
 		scsi_set_resid(cmd, 0);
 
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 
 		return SUCCESS;
 	}
@@ -1054,7 +1054,7 @@ int esas2r_eh_abort(struct scsi_cmnd *cmd)
 
 	scsi_set_resid(cmd, 0);
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 
 	return SUCCESS;
 }
@@ -1535,7 +1535,7 @@ void esas2r_complete_request_cb(struct esas2r_adapter *a,
 			scsi_set_resid(rq->cmd, 0);
 	}
 
-	rq->cmd->scsi_done(rq->cmd);
+	scsi_done(rq->cmd);
 
 	esas2r_free_request(a, rq);
 }

[PATCH v3 31/88] esp_scsi: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/esp_scsi.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c
index 9a8c037a2f21..f7c2d64f1cef 100644
--- a/drivers/scsi/esp_scsi.c
+++ b/drivers/scsi/esp_scsi.c
@@ -936,7 +936,7 @@ static void esp_cmd_is_done(struct esp *esp, struct esp_cmd_entry *ent,
 		}
 	}
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 
 	list_del(&ent->list);
 	esp_put_ent(esp, ent);
@@ -965,8 +965,6 @@ static int esp_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_
 
 	ent->cmd = cmd;
 
-	cmd->scsi_done = done;
-
 	spriv = ESP_CMD_PRIV(cmd);
 	spriv->num_sg = 0;
 
@@ -2038,7 +2036,7 @@ static void esp_reset_cleanup_one(struct esp *esp, struct esp_cmd_entry *ent)
 	if (ent->flags & ESP_CMD_FLAG_AUTOSENSE)
 		esp_unmap_sense(esp, ent);
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	list_del(&ent->list);
 	esp_put_ent(esp, ent);
 }
@@ -2061,7 +2059,7 @@ static void esp_reset_cleanup(struct esp *esp)
 
 		list_del(&ent->list);
 		cmd->result = DID_RESET << 16;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		esp_put_ent(esp, ent);
 	}
 
@@ -2535,7 +2533,7 @@ static int esp_eh_abort_handler(struct scsi_cmnd *cmd)
 		list_del(&ent->list);
 
 		cmd->result = DID_ABORT << 16;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 
 		esp_put_ent(esp, ent);
 

[PATCH v3 32/88] fas216: Introduce struct fas216_cmd_priv

[Bart Van Assche]

Introduce a structure with driver-private data per SCSI command. This data
structure will be used by the next patch to store a function pointer.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/arm/arxescsi.c |  1 +
 drivers/scsi/arm/cumana_2.c |  1 +
 drivers/scsi/arm/eesox.c    |  1 +
 drivers/scsi/arm/fas216.h   | 10 ++++++++++
 drivers/scsi/arm/powertec.c |  2 +-
 5 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/arm/arxescsi.c b/drivers/scsi/arm/arxescsi.c
index 591414120754..7f667c198f6d 100644
--- a/drivers/scsi/arm/arxescsi.c
+++ b/drivers/scsi/arm/arxescsi.c
@@ -243,6 +243,7 @@ static struct scsi_host_template arxescsi_template = {
 	.eh_bus_reset_handler		= fas216_eh_bus_reset,
 	.eh_device_reset_handler	= fas216_eh_device_reset,
 	.eh_abort_handler		= fas216_eh_abort,
+	.cmd_size			= sizeof(struct fas216_cmd_priv),
 	.can_queue			= 0,
 	.this_id			= 7,
 	.sg_tablesize			= SG_ALL,
diff --git a/drivers/scsi/arm/cumana_2.c b/drivers/scsi/arm/cumana_2.c
index 9dcd912267e6..3c00d7773876 100644
--- a/drivers/scsi/arm/cumana_2.c
+++ b/drivers/scsi/arm/cumana_2.c
@@ -363,6 +363,7 @@ static struct scsi_host_template cumanascsi2_template = {
 	.eh_bus_reset_handler		= fas216_eh_bus_reset,
 	.eh_device_reset_handler	= fas216_eh_device_reset,
 	.eh_abort_handler		= fas216_eh_abort,
+	.cmd_size			= sizeof(struct fas216_cmd_priv),
 	.can_queue			= 1,
 	.this_id			= 7,
 	.sg_tablesize			= SG_MAX_SEGMENTS,
diff --git a/drivers/scsi/arm/eesox.c b/drivers/scsi/arm/eesox.c
index 5eb2415dda9d..1394590eecea 100644
--- a/drivers/scsi/arm/eesox.c
+++ b/drivers/scsi/arm/eesox.c
@@ -480,6 +480,7 @@ static struct scsi_host_template eesox_template = {
 	.eh_bus_reset_handler		= fas216_eh_bus_reset,
 	.eh_device_reset_handler	= fas216_eh_device_reset,
 	.eh_abort_handler		= fas216_eh_abort,
+	.cmd_size			= sizeof(struct fas216_cmd_priv),
 	.can_queue			= 1,
 	.this_id			= 7,
 	.sg_tablesize			= SG_MAX_SEGMENTS,
diff --git a/drivers/scsi/arm/fas216.h b/drivers/scsi/arm/fas216.h
index 847413ce14cf..abf960487314 100644
--- a/drivers/scsi/arm/fas216.h
+++ b/drivers/scsi/arm/fas216.h
@@ -310,6 +310,16 @@ typedef struct {
 	unsigned long		magic_end;
 } FAS216_Info;
 
+/* driver-private data per SCSI command. */
+struct fas216_cmd_priv {
+	void (*scsi_done)(struct scsi_cmnd *cmd);
+};
+
+static inline struct fas216_cmd_priv *fas216_cmd_priv(struct scsi_cmnd *cmd)
+{
+	return scsi_cmd_priv(cmd);
+}
+
 /* Function: int fas216_init (struct Scsi_Host *instance)
  * Purpose : initialise FAS/NCR/AMD SCSI structures.
  * Params  : instance - a driver-specific filled-out structure
diff --git a/drivers/scsi/arm/powertec.c b/drivers/scsi/arm/powertec.c
index 9cc73da4e876..8fec435cee18 100644
--- a/drivers/scsi/arm/powertec.c
+++ b/drivers/scsi/arm/powertec.c
@@ -286,7 +286,7 @@ static struct scsi_host_template powertecscsi_template = {
 	.eh_bus_reset_handler		= fas216_eh_bus_reset,
 	.eh_device_reset_handler	= fas216_eh_device_reset,
 	.eh_abort_handler		= fas216_eh_abort,
-
+	.cmd_size			= sizeof(struct fas216_cmd_priv),
 	.can_queue			= 8,
 	.this_id			= 7,
 	.sg_tablesize			= SG_MAX_SEGMENTS,

[PATCH v3 33/88] fas216: Stop using scsi_cmnd.scsi_done

[Bart Van Assche]

Store the completion callback pointer in struct fas216_cmd_priv instead of
in struct scsi_cmnd. This patch prepares for removal of the scsi_done
member from struct scsi_cmnd.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/arm/fas216.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index bbb8635782b1..9926383f79ea 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -2017,7 +2017,7 @@ static void fas216_rq_sns_done(FAS216_Info *info, struct scsi_cmnd *SCpnt,
 	 * correctly by fas216_std_done.
 	 */
 	scsi_eh_restore_cmnd(SCpnt, &info->ses);
-	SCpnt->scsi_done(SCpnt);
+	fas216_cmd_priv(SCpnt)->scsi_done(SCpnt);
 }
 
 /**
@@ -2088,8 +2088,8 @@ fas216_std_done(FAS216_Info *info, struct scsi_cmnd *SCpnt, unsigned int result)
 	}
 
 done:
-	if (SCpnt->scsi_done) {
-		SCpnt->scsi_done(SCpnt);
+	if (fas216_cmd_priv(SCpnt)->scsi_done) {
+		fas216_cmd_priv(SCpnt)->scsi_done(SCpnt);
 		return;
 	}
 
@@ -2205,7 +2205,7 @@ static int fas216_queue_command_lck(struct scsi_cmnd *SCpnt,
 	fas216_log_command(info, LOG_CONNECT, SCpnt,
 			   "received command (%p)", SCpnt);
 
-	SCpnt->scsi_done = done;
+	fas216_cmd_priv(SCpnt)->scsi_done = done;
 	SCpnt->host_scribble = (void *)fas216_std_done;
 	SCpnt->result = 0;
 

[PATCH v3 34/88] fdomain: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/fdomain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c
index eda2be534aa7..9159b4057c5d 100644
--- a/drivers/scsi/fdomain.c
+++ b/drivers/scsi/fdomain.c
@@ -206,7 +206,7 @@ static void fdomain_finish_cmd(struct fdomain *fd)
 {
 	outb(0, fd->base + REG_ICTL);
 	fdomain_make_bus_idle(fd);
-	fd->cur_cmd->scsi_done(fd->cur_cmd);
+	scsi_done(fd->cur_cmd);
 	fd->cur_cmd = NULL;
 }
 

[PATCH v3 35/88] fnic: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/fnic/fnic_scsi.c | 119 +++++++++++++++-------------------
 1 file changed, 54 insertions(+), 65 deletions(-)

diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index f8afbfb468dc..09b8bf5adaf5 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -560,7 +560,6 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_
 	CMD_STATE(sc) = FNIC_IOREQ_CMD_PENDING;
 	CMD_SP(sc) = (char *)io_req;
 	CMD_FLAGS(sc) |= FNIC_IO_INITIALIZED;
-	sc->scsi_done = done;
 
 	/* create copy wq desc and enqueue it */
 	wq = &fnic->wq_copy[0];
@@ -1051,8 +1050,7 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic,
 	}
 
 	/* Call SCSI completion function to complete the IO */
-	if (sc->scsi_done)
-		sc->scsi_done(sc);
+	scsi_done(sc);
 }
 
 /* fnic_fcpio_itmf_cmpl_handler
@@ -1193,28 +1191,25 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic,
 
 			fnic_release_ioreq_buf(fnic, io_req, sc);
 			mempool_free(io_req, fnic->io_req_pool);
-			if (sc->scsi_done) {
-				FNIC_TRACE(fnic_fcpio_itmf_cmpl_handler,
-					sc->device->host->host_no, id,
-					sc,
-					jiffies_to_msecs(jiffies - start_time),
-					desc,
-					(((u64)hdr_status << 40) |
-					(u64)sc->cmnd[0] << 32 |
-					(u64)sc->cmnd[2] << 24 |
-					(u64)sc->cmnd[3] << 16 |
-					(u64)sc->cmnd[4] << 8 | sc->cmnd[5]),
-					(((u64)CMD_FLAGS(sc) << 32) |
-					CMD_STATE(sc)));
-				sc->scsi_done(sc);
-				atomic64_dec(&fnic_stats->io_stats.active_ios);
-				if (atomic64_read(&fnic->io_cmpl_skip))
-					atomic64_dec(&fnic->io_cmpl_skip);
-				else
-					atomic64_inc(&fnic_stats->io_stats.io_completions);
-			}
+			FNIC_TRACE(fnic_fcpio_itmf_cmpl_handler,
+				   sc->device->host->host_no, id,
+				   sc,
+				   jiffies_to_msecs(jiffies - start_time),
+				   desc,
+				   (((u64)hdr_status << 40) |
+				    (u64)sc->cmnd[0] << 32 |
+				    (u64)sc->cmnd[2] << 24 |
+				    (u64)sc->cmnd[3] << 16 |
+				    (u64)sc->cmnd[4] << 8 | sc->cmnd[5]),
+				   (((u64)CMD_FLAGS(sc) << 32) |
+				    CMD_STATE(sc)));
+			scsi_done(sc);
+			atomic64_dec(&fnic_stats->io_stats.active_ios);
+			if (atomic64_read(&fnic->io_cmpl_skip))
+				atomic64_dec(&fnic->io_cmpl_skip);
+			else
+				atomic64_inc(&fnic_stats->io_stats.io_completions);
 		}
-
 	} else if (id & FNIC_TAG_DEV_RST) {
 		/* Completion of device reset */
 		CMD_LR_STATUS(sc) = hdr_status;
@@ -1421,23 +1416,22 @@ static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data,
 		atomic64_inc(&fnic_stats->io_stats.io_completions);
 
 	/* Complete the command to SCSI */
-	if (sc->scsi_done) {
-		if (!(CMD_FLAGS(sc) & FNIC_IO_ISSUED))
-			shost_printk(KERN_ERR, fnic->lport->host,
-				     "Calling done for IO not issued to fw: tag:0x%x sc:0x%p\n",
-				     tag, sc);
-
-		FNIC_TRACE(fnic_cleanup_io,
-			   sc->device->host->host_no, tag, sc,
-			   jiffies_to_msecs(jiffies - start_time),
-			   0, ((u64)sc->cmnd[0] << 32 |
-			       (u64)sc->cmnd[2] << 24 |
-			       (u64)sc->cmnd[3] << 16 |
-			       (u64)sc->cmnd[4] << 8 | sc->cmnd[5]),
-			   (((u64)CMD_FLAGS(sc) << 32) | CMD_STATE(sc)));
-
-		sc->scsi_done(sc);
-	}
+	if (!(CMD_FLAGS(sc) & FNIC_IO_ISSUED))
+		shost_printk(KERN_ERR, fnic->lport->host,
+			     "Calling done for IO not issued to fw: tag:0x%x sc:0x%p\n",
+			     tag, sc);
+
+	FNIC_TRACE(fnic_cleanup_io,
+		   sc->device->host->host_no, tag, sc,
+		   jiffies_to_msecs(jiffies - start_time),
+		   0, ((u64)sc->cmnd[0] << 32 |
+		       (u64)sc->cmnd[2] << 24 |
+		       (u64)sc->cmnd[3] << 16 |
+		       (u64)sc->cmnd[4] << 8 | sc->cmnd[5]),
+		   (((u64)CMD_FLAGS(sc) << 32) | CMD_STATE(sc)));
+
+	scsi_done(sc);
+
 	return true;
 }
 
@@ -1495,17 +1489,15 @@ void fnic_wq_copy_cleanup_handler(struct vnic_wq_copy *wq,
 	FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, "wq_copy_cleanup_handler:"
 		      " DID_NO_CONNECT\n");
 
-	if (sc->scsi_done) {
-		FNIC_TRACE(fnic_wq_copy_cleanup_handler,
-			  sc->device->host->host_no, id, sc,
-			  jiffies_to_msecs(jiffies - start_time),
-			  0, ((u64)sc->cmnd[0] << 32 |
-			  (u64)sc->cmnd[2] << 24 | (u64)sc->cmnd[3] << 16 |
-			  (u64)sc->cmnd[4] << 8 | sc->cmnd[5]),
-			  (((u64)CMD_FLAGS(sc) << 32) | CMD_STATE(sc)));
+	FNIC_TRACE(fnic_wq_copy_cleanup_handler,
+		   sc->device->host->host_no, id, sc,
+		   jiffies_to_msecs(jiffies - start_time),
+		   0, ((u64)sc->cmnd[0] << 32 |
+		       (u64)sc->cmnd[2] << 24 | (u64)sc->cmnd[3] << 16 |
+		       (u64)sc->cmnd[4] << 8 | sc->cmnd[5]),
+		   (((u64)CMD_FLAGS(sc) << 32) | CMD_STATE(sc)));
 
-		sc->scsi_done(sc);
-	}
+	scsi_done(sc);
 }
 
 static inline int fnic_queue_abort_io_req(struct fnic *fnic, int tag,
@@ -1931,16 +1923,14 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
 	fnic_release_ioreq_buf(fnic, io_req, sc);
 	mempool_free(io_req, fnic->io_req_pool);
 
-	if (sc->scsi_done) {
 	/* Call SCSI completion function to complete the IO */
-		sc->result = (DID_ABORT << 16);
-		sc->scsi_done(sc);
-		atomic64_dec(&fnic_stats->io_stats.active_ios);
-		if (atomic64_read(&fnic->io_cmpl_skip))
-			atomic64_dec(&fnic->io_cmpl_skip);
-		else
-			atomic64_inc(&fnic_stats->io_stats.io_completions);
-	}
+	sc->result = DID_ABORT << 16;
+	scsi_done(sc);
+	atomic64_dec(&fnic_stats->io_stats.active_ios);
+	if (atomic64_read(&fnic->io_cmpl_skip))
+		atomic64_dec(&fnic->io_cmpl_skip);
+	else
+		atomic64_inc(&fnic_stats->io_stats.io_completions);
 
 fnic_abort_cmd_end:
 	FNIC_TRACE(fnic_abort_cmd, sc->device->host->host_no, tag, sc,
@@ -2153,11 +2143,10 @@ static bool fnic_pending_aborts_iter(struct scsi_cmnd *sc,
 	 * Any IO is returned during reset, it needs to call scsi_done
 	 * to return the scsi_cmnd to upper layer.
 	 */
-	if (sc->scsi_done) {
-		/* Set result to let upper SCSI layer retry */
-		sc->result = DID_RESET << 16;
-		sc->scsi_done(sc);
-	}
+	/* Set result to let upper SCSI layer retry */
+	sc->result = DID_RESET << 16;
+	scsi_done(sc);
+
 	return true;
 }
 

[PATCH v3 36/88] hpsa: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/hpsa.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 3faa87fa296a..a1153449344a 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -2482,8 +2482,8 @@ static void hpsa_cmd_free_and_done(struct ctlr_info *h,
 		struct CommandList *c, struct scsi_cmnd *cmd)
 {
 	hpsa_cmd_resolve_and_free(h, c);
-	if (cmd && cmd->scsi_done)
-		cmd->scsi_done(cmd);
+	if (cmd)
+		scsi_done(cmd);
 }
 
 static void hpsa_retry_cmd(struct ctlr_info *h, struct CommandList *c)
@@ -5671,7 +5671,7 @@ static void hpsa_command_resubmit_worker(struct work_struct *work)
 		 * if it encountered a dma mapping failure.
 		 */
 		cmd->result = DID_IMM_RETRY << 16;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 }
 
@@ -5691,19 +5691,19 @@ static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
 	dev = cmd->device->hostdata;
 	if (!dev) {
 		cmd->result = DID_NO_CONNECT << 16;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return 0;
 	}
 
 	if (dev->removed) {
 		cmd->result = DID_NO_CONNECT << 16;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return 0;
 	}
 
 	if (unlikely(lockup_detected(h))) {
 		cmd->result = DID_NO_CONNECT << 16;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return 0;
 	}
 

[PATCH v3 37/88] hptiop: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/hptiop.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index 61cda7b7624f..f18f6a677c1b 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -769,7 +769,7 @@ static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
 
 skip_resid:
 	dprintk("scsi_done(%p)\n", scp);
-	scp->scsi_done(scp);
+	scsi_done(scp);
 	free_req(hba, &hba->reqs[tag]);
 }
 
@@ -1002,9 +1002,6 @@ static int hptiop_queuecommand_lck(struct scsi_cmnd *scp,
 	int sg_count = 0;
 	struct hptiop_request *_req;
 
-	BUG_ON(!done);
-	scp->scsi_done = done;
-
 	_req = get_req(hba);
 	if (_req == NULL) {
 		dprintk("hptiop_queuecmd : no free req\n");
@@ -1059,7 +1056,7 @@ static int hptiop_queuecommand_lck(struct scsi_cmnd *scp,
 
 cmd_done:
 	dprintk("scsi_done(scp=%p)\n", scp);
-	scp->scsi_done(scp);
+	scsi_done(scp);
 	return 0;
 }
 

[PATCH v3 38/88] ibmvscsi: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/ibmvscsi/ibmvfc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 1f1586ad48fe..63f42eebe0ba 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -1046,7 +1046,7 @@ static void ibmvfc_scsi_eh_done(struct ibmvfc_event *evt)
 
 	if (cmnd) {
 		scsi_dma_unmap(cmnd);
-		cmnd->scsi_done(cmnd);
+		scsi_done(cmnd);
 	}
 
 	ibmvfc_free_event(evt);
@@ -1848,7 +1848,7 @@ static void ibmvfc_scsi_done(struct ibmvfc_event *evt)
 			cmnd->result = (DID_ERROR << 16);
 
 		scsi_dma_unmap(cmnd);
-		cmnd->scsi_done(cmnd);
+		scsi_done(cmnd);
 	}
 
 	ibmvfc_free_event(evt);
@@ -1934,7 +1934,7 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
 	if (unlikely((rc = fc_remote_port_chkready(rport))) ||
 	    unlikely((rc = ibmvfc_host_chkready(vhost)))) {
 		cmnd->result = rc;
-		cmnd->scsi_done(cmnd);
+		scsi_done(cmnd);
 		return 0;
 	}
 
@@ -1974,7 +1974,7 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
 			    "Failed to map DMA buffer for command. rc=%d\n", rc);
 
 	cmnd->result = DID_ERROR << 16;
-	cmnd->scsi_done(cmnd);
+	scsi_done(cmnd);
 	return 0;
 }
 

[PATCH v3 39/88] imm: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/imm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index 943c9102a7eb..be8edcff0177 100644
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -769,7 +769,7 @@ static void imm_interrupt(struct work_struct *work)
 
 	spin_lock_irqsave(host->host_lock, flags);
 	dev->cur_cmd = NULL;
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	spin_unlock_irqrestore(host->host_lock, flags);
 	return;
 }
@@ -922,7 +922,6 @@ static int imm_queuecommand_lck(struct scsi_cmnd *cmd,
 	dev->failed = 0;
 	dev->jstart = jiffies;
 	dev->cur_cmd = cmd;
-	cmd->scsi_done = done;
 	cmd->result = DID_ERROR << 16;	/* default return code */
 	cmd->SCp.phase = 0;	/* bus free */
 

[PATCH v3 40/88] initio: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/initio.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
index 9b75e19a9bab..183f95758636 100644
--- a/drivers/scsi/initio.c
+++ b/drivers/scsi/initio.c
@@ -2615,8 +2615,6 @@ static int i91u_queuecommand_lck(struct scsi_cmnd *cmd,
 	struct initio_host *host = (struct initio_host *) cmd->device->host->hostdata;
 	struct scsi_ctrl_blk *cmnd;
 
-	cmd->scsi_done = done;
-
 	cmnd = initio_alloc_scb(host);
 	if (!cmnd)
 		return SCSI_MLQUEUE_HOST_BUSY;
@@ -2788,7 +2786,7 @@ static void i91uSCBPost(u8 * host_mem, u8 * cblk_mem)
 
 	cmnd->result = cblk->tastat | (cblk->hastat << 16);
 	i91u_unmap_scb(host->pci_dev, cmnd);
-	cmnd->scsi_done(cmnd);	/* Notify system DONE           */
+	scsi_done(cmnd);	/* Notify system DONE           */
 	initio_release_scb(host, cblk);	/* Release SCB for current channel */
 }
 

[PATCH v3 41/88] ipr: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/ipr.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 5d78f7e939a3..aa44216dcf9a 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -866,7 +866,7 @@ static void __ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
 	scsi_cmd->result |= (DID_ERROR << 16);
 
 	scsi_dma_unmap(ipr_cmd->scsi_cmd);
-	scsi_cmd->scsi_done(scsi_cmd);
+	scsi_done(scsi_cmd);
 	if (ipr_cmd->eh_comp)
 		complete(ipr_cmd->eh_comp);
 	list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
@@ -6065,7 +6065,7 @@ static void __ipr_erp_done(struct ipr_cmnd *ipr_cmd)
 		res->in_erp = 0;
 	}
 	scsi_dma_unmap(ipr_cmd->scsi_cmd);
-	scsi_cmd->scsi_done(scsi_cmd);
+	scsi_done(scsi_cmd);
 	if (ipr_cmd->eh_comp)
 		complete(ipr_cmd->eh_comp);
 	list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
@@ -6502,7 +6502,7 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
 	}
 
 	scsi_dma_unmap(ipr_cmd->scsi_cmd);
-	scsi_cmd->scsi_done(scsi_cmd);
+	scsi_done(scsi_cmd);
 	if (ipr_cmd->eh_comp)
 		complete(ipr_cmd->eh_comp);
 	list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
@@ -6531,7 +6531,7 @@ static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
 		scsi_dma_unmap(scsi_cmd);
 
 		spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
-		scsi_cmd->scsi_done(scsi_cmd);
+		scsi_done(scsi_cmd);
 		if (ipr_cmd->eh_comp)
 			complete(ipr_cmd->eh_comp);
 		list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
@@ -6685,7 +6685,7 @@ static int ipr_queuecommand(struct Scsi_Host *shost,
 	spin_lock_irqsave(hrrq->lock, hrrq_flags);
 	memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 	scsi_cmd->result = (DID_NO_CONNECT << 16);
-	scsi_cmd->scsi_done(scsi_cmd);
+	scsi_done(scsi_cmd);
 	spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
 	return 0;
 }

[PATCH v3 42/88] ips: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/ips.c | 28 +++++++++++++---------------
 1 file changed, 13 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index cdd94fb2aab7..0c93ec359e9b 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -936,7 +936,7 @@ static int __ips_eh_reset(struct scsi_cmnd *SC)
 
 		while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
 			scb->scsi_cmd->result = DID_ERROR << 16;
-			scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+			scsi_done(scb->scsi_cmd);
 			ips_freescb(ha, scb);
 		}
 
@@ -946,7 +946,7 @@ static int __ips_eh_reset(struct scsi_cmnd *SC)
 
 		while ((scsi_cmd = ips_removeq_wait_head(&ha->scb_waitlist))) {
 			scsi_cmd->result = DID_ERROR;
-			scsi_cmd->scsi_done(scsi_cmd);
+			scsi_done(scsi_cmd);
 		}
 
 		ha->active = FALSE;
@@ -965,7 +965,7 @@ static int __ips_eh_reset(struct scsi_cmnd *SC)
 
 		while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
 			scb->scsi_cmd->result = DID_ERROR << 16;
-			scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+			scsi_done(scb->scsi_cmd);
 			ips_freescb(ha, scb);
 		}
 
@@ -975,7 +975,7 @@ static int __ips_eh_reset(struct scsi_cmnd *SC)
 
 		while ((scsi_cmd = ips_removeq_wait_head(&ha->scb_waitlist))) {
 			scsi_cmd->result = DID_ERROR << 16;
-			scsi_cmd->scsi_done(scsi_cmd);
+			scsi_done(scsi_cmd);
 		}
 
 		ha->active = FALSE;
@@ -994,7 +994,7 @@ static int __ips_eh_reset(struct scsi_cmnd *SC)
 
 	while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
 		scb->scsi_cmd->result = DID_RESET << 16;
-		scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+		scsi_done(scb->scsi_cmd);
 		ips_freescb(ha, scb);
 	}
 
@@ -1064,8 +1064,6 @@ static int ips_queue_lck(struct scsi_cmnd *SC, void (*done) (struct scsi_cmnd *)
 		return (0);
 	}
 
-	SC->scsi_done = done;
-
 	DEBUG_VAR(2, "(%s%d): ips_queue: cmd 0x%X (%d %d %d)",
 		  ips_name,
 		  ha->host_num,
@@ -1099,7 +1097,7 @@ static int ips_queue_lck(struct scsi_cmnd *SC, void (*done) (struct scsi_cmnd *)
 			ha->ioctl_reset = 1;	/* This reset request is from an IOCTL */
 			__ips_eh_reset(SC);
 			SC->result = DID_OK << 16;
-			SC->scsi_done(SC);
+			scsi_done(SC);
 			return (0);
 		}
 
@@ -2579,7 +2577,7 @@ ips_next(ips_ha_t * ha, int intr)
 		case IPS_FAILURE:
 			if (scb->scsi_cmd) {
 				scb->scsi_cmd->result = DID_ERROR << 16;
-				scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+				scsi_done(scb->scsi_cmd);
 			}
 
 			ips_freescb(ha, scb);
@@ -2587,7 +2585,7 @@ ips_next(ips_ha_t * ha, int intr)
 		case IPS_SUCCESS_IMM:
 			if (scb->scsi_cmd) {
 				scb->scsi_cmd->result = DID_OK << 16;
-				scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+				scsi_done(scb->scsi_cmd);
 			}
 
 			ips_freescb(ha, scb);
@@ -2712,7 +2710,7 @@ ips_next(ips_ha_t * ha, int intr)
 		case IPS_FAILURE:
 			if (scb->scsi_cmd) {
 				scb->scsi_cmd->result = DID_ERROR << 16;
-				scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+				scsi_done(scb->scsi_cmd);
 			}
 
 			if (scb->bus)
@@ -2723,7 +2721,7 @@ ips_next(ips_ha_t * ha, int intr)
 			break;
 		case IPS_SUCCESS_IMM:
 			if (scb->scsi_cmd)
-				scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+				scsi_done(scb->scsi_cmd);
 
 			if (scb->bus)
 				ha->dcdb_active[scb->bus - 1] &=
@@ -3206,7 +3204,7 @@ ips_done(ips_ha_t * ha, ips_scb_t * scb)
 			case IPS_FAILURE:
 				if (scb->scsi_cmd) {
 					scb->scsi_cmd->result = DID_ERROR << 16;
-					scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+					scsi_done(scb->scsi_cmd);
 				}
 
 				ips_freescb(ha, scb);
@@ -3214,7 +3212,7 @@ ips_done(ips_ha_t * ha, ips_scb_t * scb)
 			case IPS_SUCCESS_IMM:
 				if (scb->scsi_cmd) {
 					scb->scsi_cmd->result = DID_ERROR << 16;
-					scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+					scsi_done(scb->scsi_cmd);
 				}
 
 				ips_freescb(ha, scb);
@@ -3231,7 +3229,7 @@ ips_done(ips_ha_t * ha, ips_scb_t * scb)
 		ha->dcdb_active[scb->bus - 1] &= ~(1 << scb->target_id);
 	}
 
-	scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+	scsi_done(scb->scsi_cmd);
 
 	ips_freescb(ha, scb);
 }

[PATCH v3 43/88] libfc: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/libfc/fc_fcp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 509eacd7893d..871b11edb586 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -1870,7 +1870,7 @@ int fc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc_cmd)
 	rval = fc_remote_port_chkready(rport);
 	if (rval) {
 		sc_cmd->result = rval;
-		sc_cmd->scsi_done(sc_cmd);
+		scsi_done(sc_cmd);
 		return 0;
 	}
 
@@ -1880,7 +1880,7 @@ int fc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc_cmd)
 		 * online
 		 */
 		sc_cmd->result = DID_IMM_RETRY << 16;
-		sc_cmd->scsi_done(sc_cmd);
+		scsi_done(sc_cmd);
 		goto out;
 	}
 
@@ -2087,7 +2087,7 @@ static void fc_io_compl(struct fc_fcp_pkt *fsp)
 	list_del(&fsp->list);
 	sc_cmd->SCp.ptr = NULL;
 	spin_unlock_irqrestore(&si->scsi_queue_lock, flags);
-	sc_cmd->scsi_done(sc_cmd);
+	scsi_done(sc_cmd);
 
 	/* release ref from initial allocation in queue command */
 	fc_fcp_pkt_release(fsp);

[PATCH v3 44/88] libiscsi: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Reviewed-by: Lee Duncan <lduncanb@suse.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/libiscsi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 712a45368385..7beedc59d0c6 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -468,7 +468,7 @@ static void iscsi_free_task(struct iscsi_task *task)
 		 * it will decide how to return sc to scsi-ml.
 		 */
 		if (oldstate != ISCSI_TASK_REQUEUE_SCSIQ)
-			sc->scsi_done(sc);
+			scsi_done(sc);
 	}
 }
 
@@ -1807,7 +1807,7 @@ int iscsi_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc)
 	ISCSI_DBG_SESSION(session, "iscsi: cmd 0x%x is not queued (%d)\n",
 			  sc->cmnd[0], reason);
 	scsi_set_resid(sc, scsi_bufflen(sc));
-	sc->scsi_done(sc);
+	scsi_done(sc);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(iscsi_queuecommand);

[PATCH v3 45/88] libsas: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/libsas/sas_scsi_host.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 2bf37151623e..d337fdf1b9ca 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -125,7 +125,7 @@ static void sas_scsi_task_done(struct sas_task *task)
 	}
 
 	sas_end_task(sc, task);
-	sc->scsi_done(sc);
+	scsi_done(sc);
 }
 
 static struct sas_task *sas_create_task(struct scsi_cmnd *cmd,
@@ -198,7 +198,7 @@ int sas_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	else
 		cmd->result = DID_ERROR << 16;
 out_done:
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(sas_queuecommand);

[PATCH v3 46/88] lpfc: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/lpfc/lpfc_scsi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 17e677cf8dcd..b005c6d39e16 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -564,7 +564,7 @@ lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba,
 				 * scsi_done upcall.
 				 */
 				if (cmd)
-					cmd->scsi_done(cmd);
+					scsi_done(cmd);
 
 				/*
 				 * We expect there is an abort thread waiting
@@ -4502,7 +4502,7 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
 		goto out;
 
 	/* The sdev is not guaranteed to be valid post scsi_done upcall. */
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 
 	/*
 	 * If there is an abort thread waiting for command completion
@@ -4771,7 +4771,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 #endif
 
 	/* The sdev is not guaranteed to be valid post scsi_done upcall. */
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 
 	/*
 	 * If there is an abort thread waiting for command completion
@@ -5843,7 +5843,7 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
 			     shost);
 
  out_fail_command:
-	cmnd->scsi_done(cmnd);
+	scsi_done(cmnd);
 	return 0;
 }
 

[PATCH v3 47/88] mac53c94: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/mac53c94.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c
index ec9840d322e5..9731855805f5 100644
--- a/drivers/scsi/mac53c94.c
+++ b/drivers/scsi/mac53c94.c
@@ -83,7 +83,6 @@ static int mac53c94_queue_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cm
 	}
 #endif
 
-	cmd->scsi_done = done;
 	cmd->host_scribble = NULL;
 
 	state = (struct fsc_state *) cmd->device->host->hostdata;
@@ -348,7 +347,7 @@ static void cmd_done(struct fsc_state *state, int result)
 	cmd = state->current_req;
 	if (cmd) {
 		cmd->result = result;
-		(*cmd->scsi_done)(cmd);
+		scsi_done(cmd);
 		state->current_req = NULL;
 	}
 	state->phase = idle;

[PATCH v3 48/88] megaraid: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/megaraid/megaraid_mbox.c       |  9 ++++-----
 drivers/scsi/megaraid/megaraid_sas_base.c   | 16 ++++++++--------
 drivers/scsi/megaraid/megaraid_sas_fusion.c |  6 +++---
 3 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index d20c2e4ee793..705c5027ba91 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -1440,7 +1440,6 @@ megaraid_queue_command_lck(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd
 	int		if_busy;
 
 	adapter		= SCP2ADAPTER(scp);
-	scp->scsi_done	= done;
 	scp->result	= 0;
 
 	/*
@@ -2358,7 +2357,7 @@ megaraid_mbox_dpc(unsigned long devp)
 		megaraid_dealloc_scb(adapter, scb);
 
 		// send the scsi packet back to kernel
-		scp->scsi_done(scp);
+		scsi_done(scp);
 	}
 
 	return;
@@ -2416,7 +2415,7 @@ megaraid_abort_handler(struct scsi_cmnd *scp)
 				scb->sno, scb->dev_channel, scb->dev_target));
 
 			scp->result = (DID_ABORT << 16);
-			scp->scsi_done(scp);
+			scsi_done(scp);
 
 			megaraid_dealloc_scb(adapter, scb);
 
@@ -2446,7 +2445,7 @@ megaraid_abort_handler(struct scsi_cmnd *scp)
 				scb->dev_channel, scb->dev_target));
 
 			scp->result = (DID_ABORT << 16);
-			scp->scsi_done(scp);
+			scsi_done(scp);
 
 			megaraid_dealloc_scb(adapter, scb);
 
@@ -2566,7 +2565,7 @@ megaraid_reset_handler(struct scsi_cmnd *scp)
 			}
 
 			scb->scp->result = (DID_RESET << 16);
-			scb->scp->scsi_done(scb->scp);
+			scsi_done(scb->scp);
 
 			megaraid_dealloc_scb(adapter, scb);
 		}
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index e4298bf4a482..4ae585a5b1a5 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -1794,7 +1794,7 @@ megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 
 	if (instance->unload == 1) {
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
@@ -1809,7 +1809,7 @@ megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 			return SCSI_MLQUEUE_HOST_BUSY;
 		} else {
 			scmd->result = DID_NO_CONNECT << 16;
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 	}
@@ -1818,7 +1818,7 @@ megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 	if (!mr_device_priv_data ||
 	    (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)) {
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
@@ -1826,7 +1826,7 @@ megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 		ld_tgt_id = MEGASAS_TARGET_ID(scmd->device);
 		if (instance->ld_tgtid_status[ld_tgt_id] == LD_TARGET_ID_DELETED) {
 			scmd->result = DID_NO_CONNECT << 16;
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 	}
@@ -1857,7 +1857,7 @@ megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 	return instance->instancet->build_and_issue_cmd(instance, scmd);
 
  out_done:
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 	return 0;
 }
 
@@ -2783,7 +2783,7 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance)
 					reset_index, reset_cmd,
 					reset_cmd->scmd->cmnd[0]);
 
-				reset_cmd->scmd->scsi_done(reset_cmd->scmd);
+				scsi_done(reset_cmd->scmd);
 				megasas_return_cmd(instance, reset_cmd);
 			} else if (reset_cmd->sync_cmd) {
 				dev_notice(&instance->pdev->dev, "%p synch cmds"
@@ -3640,7 +3640,7 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 			atomic_dec(&instance->fw_outstanding);
 
 			scsi_dma_unmap(cmd->scmd);
-			cmd->scmd->scsi_done(cmd->scmd);
+			scsi_done(cmd->scmd);
 			megasas_return_cmd(instance, cmd);
 
 			break;
@@ -3686,7 +3686,7 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 		atomic_dec(&instance->fw_outstanding);
 
 		scsi_dma_unmap(cmd->scmd);
-		cmd->scmd->scsi_done(cmd->scmd);
+		scsi_done(cmd->scmd);
 		megasas_return_cmd(instance, cmd);
 
 		break;
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 109782e3ec44..fc90a0a687b5 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -3493,7 +3493,7 @@ megasas_complete_r1_command(struct megasas_instance *instance,
 		megasas_return_cmd_fusion(instance, cmd);
 		scsi_dma_unmap(scmd_local);
 		megasas_sdev_busy_dec(instance, scmd_local);
-		scmd_local->scsi_done(scmd_local);
+		scsi_done(scmd_local);
 	}
 }
 
@@ -3634,7 +3634,7 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex,
 				megasas_return_cmd_fusion(instance, cmd_fusion);
 				scsi_dma_unmap(scmd_local);
 				megasas_sdev_busy_dec(instance, scmd_local);
-				scmd_local->scsi_done(scmd_local);
+				scsi_done(scmd_local);
 			} else	/* Optimal VD - R1 FP command completion. */
 				megasas_complete_r1_command(instance, cmd_fusion);
 			break;
@@ -5013,7 +5013,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
 					atomic_dec(&instance->ldio_outstanding);
 				megasas_return_cmd_fusion(instance, cmd_fusion);
 				scsi_dma_unmap(scmd_local);
-				scmd_local->scsi_done(scmd_local);
+				scsi_done(scmd_local);
 			}
 		}
 

[PATCH v3 49/88] megaraid: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/megaraid.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 56910e94dbf2..c4ea833586e0 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -380,9 +380,6 @@ megaraid_queue_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
 
 	adapter = (adapter_t *)scmd->device->host->hostdata;
 
-	scmd->scsi_done = done;
-
-
 	/*
 	 * Allocate and build a SCB request
 	 * busy flag will be set if mega_build_cmd() command could not
@@ -586,7 +583,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 		/* have just LUN 0 for each target on virtual channels */
 		if (cmd->device->lun) {
 			cmd->result = (DID_BAD_TARGET << 16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return NULL;
 		}
 
@@ -605,7 +602,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 
 		if(ldrv_num > max_ldrv_num ) {
 			cmd->result = (DID_BAD_TARGET << 16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return NULL;
 		}
 
@@ -617,7 +614,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 			 * devices
 			 */
 			cmd->result = (DID_BAD_TARGET << 16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return NULL;
 		}
 	}
@@ -637,7 +634,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 			 */
 			if( !adapter->has_cluster ) {
 				cmd->result = (DID_OK << 16);
-				cmd->scsi_done(cmd);
+				scsi_done(cmd);
 				return NULL;
 			}
 
@@ -655,7 +652,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 			return scb;
 #else
 			cmd->result = (DID_OK << 16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return NULL;
 #endif
 
@@ -670,7 +667,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 			kunmap_atomic(buf - sg->offset);
 
 			cmd->result = (DID_OK << 16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return NULL;
 		}
 
@@ -866,7 +863,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 			if( ! adapter->has_cluster ) {
 
 				cmd->result = (DID_BAD_TARGET << 16);
-				cmd->scsi_done(cmd);
+				scsi_done(cmd);
 				return NULL;
 			}
 
@@ -889,7 +886,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 
 		default:
 			cmd->result = (DID_BAD_TARGET << 16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return NULL;
 		}
 	}
@@ -1654,7 +1651,7 @@ mega_rundoneq (adapter_t *adapter)
 		struct scsi_pointer* spos = (struct scsi_pointer *)pos;
 
 		cmd = list_entry(spos, struct scsi_cmnd, SCp);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 
 	INIT_LIST_HEAD(&adapter->completed_list);

[PATCH v3 50/88] mesh: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/mesh.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index 78b72bcf58fe..73a3e85802ad 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -342,15 +342,6 @@ static inline void mesh_flush_io(volatile struct mesh_regs __iomem *mr)
 }
 
 
-/*
- * Complete a SCSI command
- */
-static void mesh_completed(struct mesh_state *ms, struct scsi_cmnd *cmd)
-{
-	(*cmd->scsi_done)(cmd);
-}
-
-
 /* Called with  meshinterrupt disabled, initialize the chipset
  * and eventually do the initial bus reset. The lock must not be
  * held since we can schedule.
@@ -613,7 +604,7 @@ static void mesh_done(struct mesh_state *ms, int start_next)
 #endif
 		}
 		cmd->SCp.this_residual -= ms->data_ptr;
-		mesh_completed(ms, cmd);
+		scsi_done(cmd);
 	}
 	if (start_next) {
 		out_8(&ms->mesh->sequence, SEQ_ENBRESEL);
@@ -996,7 +987,7 @@ static void handle_reset(struct mesh_state *ms)
 		if ((cmd = tp->current_req) != NULL) {
 			set_host_byte(cmd, DID_RESET);
 			tp->current_req = NULL;
-			mesh_completed(ms, cmd);
+			scsi_done(cmd);
 		}
 		ms->tgts[tgt].sdtr_state = do_sdtr;
 		ms->tgts[tgt].sync_params = ASYNC_PARAMS;
@@ -1005,7 +996,7 @@ static void handle_reset(struct mesh_state *ms)
 	while ((cmd = ms->request_q) != NULL) {
 		ms->request_q = (struct scsi_cmnd *) cmd->host_scribble;
 		set_host_byte(cmd, DID_RESET);
-		mesh_completed(ms, cmd);
+		scsi_done(cmd);
 	}
 	ms->phase = idle;
 	ms->msgphase = msg_none;
@@ -1634,7 +1625,6 @@ static int mesh_queue_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *
 {
 	struct mesh_state *ms;
 
-	cmd->scsi_done = done;
 	cmd->host_scribble = NULL;
 
 	ms = (struct mesh_state *) cmd->device->host->hostdata;

[PATCH v3 51/88] mpi3mr: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/mpi3mr/mpi3mr_os.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 2197988333fe..6373a877f439 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -409,7 +409,7 @@ static bool mpi3mr_flush_scmd(struct request *rq,
 		scsi_dma_unmap(scmd);
 		scmd->result = DID_RESET << 16;
 		scsi_print_command(scmd);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		mrioc->flush_io_count++;
 	}
 
@@ -2312,7 +2312,7 @@ void mpi3mr_process_op_reply_desc(struct mpi3mr_ioc *mrioc,
 	}
 	mpi3mr_clear_scmd_priv(mrioc, scmd);
 	scsi_dma_unmap(scmd);
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 out:
 	if (sense_buf)
 		mpi3mr_repost_sense_buf(mrioc,
@@ -3322,7 +3322,7 @@ static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
 		    __func__);
 		scsi_print_command(scmd);
 		scmd->result = DID_OK << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return true;
 	}
 
@@ -3334,7 +3334,7 @@ static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
 		scmd->result = SAM_STAT_CHECK_CONDITION;
 		scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
 		    0x1A, 0);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return true;
 	}
 	if (param_len != scsi_bufflen(scmd)) {
@@ -3345,7 +3345,7 @@ static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
 		scmd->result = SAM_STAT_CHECK_CONDITION;
 		scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
 		    0x1A, 0);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return true;
 	}
 	buf = kzalloc(scsi_bufflen(scmd), GFP_ATOMIC);
@@ -3354,7 +3354,7 @@ static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
 		scmd->result = SAM_STAT_CHECK_CONDITION;
 		scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
 		    0x55, 0x03);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return true;
 	}
 	scsi_sg_copy_to_buffer(scmd, buf, scsi_bufflen(scmd));
@@ -3368,7 +3368,7 @@ static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
 		scmd->result = SAM_STAT_CHECK_CONDITION;
 		scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
 		    0x26, 0);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		kfree(buf);
 		return true;
 	}
@@ -3438,14 +3438,14 @@ static int mpi3mr_qcmd(struct Scsi_Host *shost,
 	sdev_priv_data = scmd->device->hostdata;
 	if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) {
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		goto out;
 	}
 
 	if (mrioc->stop_drv_processing &&
 	    !(mpi3mr_allow_scmd_to_fw(scmd))) {
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		goto out;
 	}
 
@@ -3459,19 +3459,19 @@ static int mpi3mr_qcmd(struct Scsi_Host *shost,
 	dev_handle = stgt_priv_data->dev_handle;
 	if (dev_handle == MPI3MR_INVALID_DEV_HANDLE) {
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		goto out;
 	}
 	if (stgt_priv_data->dev_removed) {
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		goto out;
 	}
 
 	if (atomic_read(&stgt_priv_data->block_io)) {
 		if (mrioc->stop_drv_processing) {
 			scmd->result = DID_NO_CONNECT << 16;
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			goto out;
 		}
 		retval = SCSI_MLQUEUE_DEVICE_BUSY;
@@ -3486,7 +3486,7 @@ static int mpi3mr_qcmd(struct Scsi_Host *shost,
 	host_tag = mpi3mr_host_tag_for_scmd(mrioc, scmd);
 	if (host_tag == MPI3MR_HOSTTAG_INVALID) {
 		scmd->result = DID_ERROR << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		goto out;
 	}
 

[PATCH v3 52/88] mpt3sas: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/mpt3sas/mpt3sas_scsih.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 2f82b1e629af..ca4e91f09fca 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -3314,7 +3314,7 @@ scsih_abort(struct scsi_cmnd *scmd)
 		sdev_printk(KERN_INFO, scmd->device,
 		    "device been deleted! scmd(0x%p)\n", scmd);
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		r = SUCCESS;
 		goto out;
 	}
@@ -3390,7 +3390,7 @@ scsih_dev_reset(struct scsi_cmnd *scmd)
 		sdev_printk(KERN_INFO, scmd->device,
 		    "device been deleted! scmd(0x%p)\n", scmd);
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		r = SUCCESS;
 		goto out;
 	}
@@ -3470,7 +3470,7 @@ scsih_target_reset(struct scsi_cmnd *scmd)
 		starget_printk(KERN_INFO, starget,
 		    "target been deleted! scmd(0x%p)\n", scmd);
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		r = SUCCESS;
 		goto out;
 	}
@@ -5030,7 +5030,7 @@ _scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc)
 			scmd->result = DID_NO_CONNECT << 16;
 		else
 			scmd->result = DID_RESET << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 	}
 	dtmprintk(ioc, ioc_info(ioc, "completing %d cmds\n", count));
 }
@@ -5139,13 +5139,13 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 	sas_device_priv_data = scmd->device->hostdata;
 	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
 	if (!(_scsih_allow_scmd_to_device(ioc, scmd))) {
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
@@ -5155,7 +5155,7 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 	handle = sas_target_priv_data->handle;
 	if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) {
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
@@ -5166,7 +5166,7 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 	} else if (sas_target_priv_data->deleted) {
 		/* device has been deleted */
 		scmd->result = DID_NO_CONNECT << 16;
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	} else if (sas_target_priv_data->tm_busy ||
 		   sas_device_priv_data->block) {
@@ -5909,7 +5909,7 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
 
 	scsi_dma_unmap(scmd);
 	mpt3sas_base_free_smid(ioc, smid);
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 	return 0;
 }
 

[PATCH v3 53/88] mvumi: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/mvumi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c
index 4d251bf630a3..904de62c974c 100644
--- a/drivers/scsi/mvumi.c
+++ b/drivers/scsi/mvumi.c
@@ -1328,7 +1328,7 @@ static void mvumi_complete_cmd(struct mvumi_hba *mhba, struct mvumi_cmd *cmd,
 		dma_unmap_sg(&mhba->pdev->dev, scsi_sglist(scmd),
 			     scsi_sg_count(scmd),
 			     scmd->sc_data_direction);
-	cmd->scmd->scsi_done(scmd);
+	scsi_done(scmd);
 	mvumi_return_cmd(mhba, cmd);
 }
 
@@ -2104,7 +2104,7 @@ static int mvumi_queue_command(struct Scsi_Host *shost,
 
 out_return_cmd:
 	mvumi_return_cmd(mhba, cmd);
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 	spin_unlock_irqrestore(shost->host_lock, irq_flags);
 	return 0;
 }

[PATCH v3 54/88] myrb: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/myrb.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/scsi/myrb.c b/drivers/scsi/myrb.c
index a4a88323e020..e8a7bcce4674 100644
--- a/drivers/scsi/myrb.c
+++ b/drivers/scsi/myrb.c
@@ -1282,7 +1282,7 @@ static int myrb_pthru_queuecommand(struct Scsi_Host *shost,
 	if (nsge > 1) {
 		dma_pool_free(cb->dcdb_pool, dcdb, dcdb_addr);
 		scmd->result = (DID_ERROR << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
@@ -1436,13 +1436,13 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 		dev_dbg(&shost->shost_gendev, "ldev %u in state %x, skip\n",
 			sdev->id, ldev_info ? ldev_info->state : 0xff);
 		scmd->result = (DID_BAD_TARGET << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 	switch (scmd->cmnd[0]) {
 	case TEST_UNIT_READY:
 		scmd->result = (DID_OK << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case INQUIRY:
 		if (scmd->cmnd[1] & 1) {
@@ -1452,11 +1452,11 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 			myrb_inquiry(cb, scmd);
 			scmd->result = (DID_OK << 16);
 		}
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case SYNCHRONIZE_CACHE:
 		scmd->result = (DID_OK << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case MODE_SENSE:
 		if ((scmd->cmnd[2] & 0x3F) != 0x3F &&
@@ -1467,25 +1467,25 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 			myrb_mode_sense(cb, scmd, ldev_info);
 			scmd->result = (DID_OK << 16);
 		}
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case READ_CAPACITY:
 		if ((scmd->cmnd[1] & 1) ||
 		    (scmd->cmnd[8] & 1)) {
 			/* Illegal request, invalid field in CDB */
 			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		lba = get_unaligned_be32(&scmd->cmnd[2]);
 		if (lba) {
 			/* Illegal request, invalid field in CDB */
 			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		myrb_read_capacity(cb, scmd, ldev_info);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case REQUEST_SENSE:
 		myrb_request_sense(cb, scmd);
@@ -1499,13 +1499,13 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 			/* Assume good status */
 			scmd->result = (DID_OK << 16);
 		}
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case READ_6:
 		if (ldev_info->state == MYRB_DEVICE_WO) {
 			/* Data protect, attempt to read invalid data */
 			scsi_build_sense(scmd, 0, DATA_PROTECT, 0x21, 0x06);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		fallthrough;
@@ -1519,7 +1519,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 		if (ldev_info->state == MYRB_DEVICE_WO) {
 			/* Data protect, attempt to read invalid data */
 			scsi_build_sense(scmd, 0, DATA_PROTECT, 0x21, 0x06);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		fallthrough;
@@ -1533,7 +1533,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 		if (ldev_info->state == MYRB_DEVICE_WO) {
 			/* Data protect, attempt to read invalid data */
 			scsi_build_sense(scmd, 0, DATA_PROTECT, 0x21, 0x06);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		fallthrough;
@@ -1546,7 +1546,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 	default:
 		/* Illegal request, invalid opcode */
 		scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x20, 0);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
@@ -1610,7 +1610,7 @@ static int myrb_queuecommand(struct Scsi_Host *shost,
 
 	if (sdev->channel > myrb_logical_channel(shost)) {
 		scmd->result = (DID_BAD_TARGET << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 	if (sdev->channel == myrb_logical_channel(shost))
@@ -2361,7 +2361,7 @@ static void myrb_handle_scsi(struct myrb_hba *cb, struct myrb_cmdblk *cmd_blk,
 		scmd->result = (DID_ERROR << 16);
 		break;
 	}
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 }
 
 static void myrb_handle_cmdblk(struct myrb_hba *cb, struct myrb_cmdblk *cmd_blk)

[PATCH v3 55/88] myrs: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/myrs.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c
index 07f274afd7e5..2ffe3cadda66 100644
--- a/drivers/scsi/myrs.c
+++ b/drivers/scsi/myrs.c
@@ -1595,14 +1595,14 @@ static int myrs_queuecommand(struct Scsi_Host *shost,
 
 	if (!scmd->device->hostdata) {
 		scmd->result = (DID_NO_CONNECT << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
 	switch (scmd->cmnd[0]) {
 	case REPORT_LUNS:
 		scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x20, 0x0);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case MODE_SENSE:
 		if (scmd->device->channel >= cs->ctlr_info->physchan_present) {
@@ -1616,7 +1616,7 @@ static int myrs_queuecommand(struct Scsi_Host *shost,
 				myrs_mode_sense(cs, scmd, ldev_info);
 				scmd->result = (DID_OK << 16);
 			}
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		break;
@@ -1756,7 +1756,7 @@ static int myrs_queuecommand(struct Scsi_Host *shost,
 			if (WARN_ON(!hw_sgl)) {
 				scsi_dma_unmap(scmd);
 				scmd->result = (DID_ERROR << 16);
-				scmd->scsi_done(scmd);
+				scsi_done(scmd);
 				return 0;
 			}
 			hw_sgl->sge_addr = (u64)sg_dma_address(sgl);
@@ -2083,7 +2083,7 @@ static void myrs_handle_scsi(struct myrs_hba *cs, struct myrs_cmdblk *cmd_blk,
 		scmd->result = (DID_BAD_TARGET << 16);
 	else
 		scmd->result = (DID_OK << 16) | status;
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 }
 
 static void myrs_handle_cmdblk(struct myrs_hba *cs, struct myrs_cmdblk *cmd_blk)

[PATCH v3 56/88] ncr53c8xx: Remove unused code

[Bart Van Assche]

Neither the remove_from_waiting_list() macro nor the
retrieve_from_waiting_list() function are used by any NCR53c8xx driver.
Hence remove both.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/ncr53c8xx.c | 23 -----------------------
 1 file changed, 23 deletions(-)

diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index 7a4f5d4dd670..2b8c6fa5e775 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -1939,11 +1939,8 @@ static	void	ncr_start_next_ccb (struct ncb *np, struct lcb * lp, int maxn);
 static	void	ncr_put_start_queue(struct ncb *np, struct ccb *cp);
 
 static void insert_into_waiting_list(struct ncb *np, struct scsi_cmnd *cmd);
-static struct scsi_cmnd *retrieve_from_waiting_list(int to_remove, struct ncb *np, struct scsi_cmnd *cmd);
 static void process_waiting_list(struct ncb *np, int sts);
 
-#define remove_from_waiting_list(np, cmd) \
-		retrieve_from_waiting_list(1, (np), (cmd))
 #define requeue_waiting_list(np) process_waiting_list((np), DID_OK)
 #define reset_waiting_list(np) process_waiting_list((np), DID_RESET)
 
@@ -7997,26 +7994,6 @@ static void insert_into_waiting_list(struct ncb *np, struct scsi_cmnd *cmd)
 	}
 }
 
-static struct scsi_cmnd *retrieve_from_waiting_list(int to_remove, struct ncb *np, struct scsi_cmnd *cmd)
-{
-	struct scsi_cmnd **pcmd = &np->waiting_list;
-
-	while (*pcmd) {
-		if (cmd == *pcmd) {
-			if (to_remove) {
-				*pcmd = (struct scsi_cmnd *) cmd->next_wcmd;
-				cmd->next_wcmd = NULL;
-			}
-#ifdef DEBUG_WAITING_LIST
-	printk("%s: cmd %lx retrieved from waiting list\n", ncr_name(np), (u_long) cmd);
-#endif
-			return cmd;
-		}
-		pcmd = (struct scsi_cmnd **) &(*pcmd)->next_wcmd;
-	}
-	return NULL;
-}
-
 static void process_waiting_list(struct ncb *np, int sts)
 {
 	struct scsi_cmnd *waiting_list, *wcmd;

[PATCH v3 57/88] ncr53c8xx: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/ncr53c8xx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index 2b8c6fa5e775..6ad43a98409c 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -4003,7 +4003,7 @@ static inline void ncr_flush_done_cmds(struct scsi_cmnd *lcmd)
 	while (lcmd) {
 		cmd = lcmd;
 		lcmd = (struct scsi_cmnd *) cmd->host_scribble;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 }
 
@@ -7862,7 +7862,6 @@ static int ncr53c8xx_queue_command_lck (struct scsi_cmnd *cmd, void (*done)(stru
 printk("ncr53c8xx_queue_command\n");
 #endif
 
-     cmd->scsi_done     = done;
      cmd->host_scribble = NULL;
      cmd->__data_mapped = 0;
      cmd->__data_mapping = 0;

[PATCH v3 58/88] nsp32: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/nsp32.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index bc9d29e5fdba..1057b6fd7569 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -945,7 +945,6 @@ static int nsp32_queuecommand_lck(struct scsi_cmnd *SCpnt,
 
 	show_command(SCpnt);
 
-	SCpnt->scsi_done     = done;
 	data->CurrentSC      = SCpnt;
 	SCpnt->SCp.Status    = SAM_STAT_CHECK_CONDITION;
 	scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
@@ -1546,7 +1545,7 @@ static void nsp32_scsi_done(struct scsi_cmnd *SCpnt)
 	/*
 	 * call scsi_done
 	 */
-	(*SCpnt->scsi_done)(SCpnt);
+	scsi_done(SCpnt);
 
 	/*
 	 * reset parameters

[PATCH v3 59/88] pcmcia: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/pcmcia/nsp_cs.c       | 4 +---
 drivers/scsi/pcmcia/sym53c500_cs.c | 3 +--
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
index 7c0f931e55e8..0271d534133a 100644
--- a/drivers/scsi/pcmcia/nsp_cs.c
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -178,7 +178,7 @@ static void nsp_scsi_done(struct scsi_cmnd *SCpnt)
 
 	data->CurrentSC = NULL;
 
-	SCpnt->scsi_done(SCpnt);
+	scsi_done(SCpnt);
 }
 
 static int nsp_queuecommand_lck(struct scsi_cmnd *SCpnt,
@@ -197,8 +197,6 @@ static int nsp_queuecommand_lck(struct scsi_cmnd *SCpnt,
 		scsi_bufflen(SCpnt), scsi_sg_count(SCpnt));
 	//nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "before CurrentSC=0x%p", data->CurrentSC);
 
-	SCpnt->scsi_done	= done;
-
 	if (data->CurrentSC != NULL) {
 		nsp_msg(KERN_DEBUG, "CurrentSC!=NULL this can't be happen");
 		SCpnt->result   = DID_BAD_TARGET << 16;
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index a366ff1a3959..d2adda815d7b 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -492,7 +492,7 @@ SYM53C500_intr(int irq, void *dev_id)
 
 idle_out:
 	curSC->SCp.phase = idle;
-	curSC->scsi_done(curSC);
+	scsi_done(curSC);
 	goto out;
 }
 
@@ -556,7 +556,6 @@ SYM53C500_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
 	VDEB(printk("\n"));
 
 	data->current_SC = SCpnt;
-	data->current_SC->scsi_done = done;
 	data->current_SC->SCp.phase = command_ph;
 	data->current_SC->SCp.Status = 0;
 	data->current_SC->SCp.Message = 0;

[PATCH v3 60/88] pmcraid: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/pmcraid.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index bffd9a9349e7..11f36fd4e62f 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -837,7 +837,7 @@ static void pmcraid_erp_done(struct pmcraid_cmd *cmd)
 
 	scsi_dma_unmap(scsi_cmd);
 	pmcraid_return_cmd(cmd);
-	scsi_cmd->scsi_done(scsi_cmd);
+	scsi_done(scsi_cmd);
 }
 
 /**
@@ -2017,7 +2017,7 @@ static void pmcraid_fail_outstanding_cmds(struct pmcraid_instance *pinstance)
 				     le32_to_cpu(resp) >> 2,
 				     cmd->ioa_cb->ioarcb.cdb[0],
 				     scsi_cmd->result);
-			scsi_cmd->scsi_done(scsi_cmd);
+			scsi_done(scsi_cmd);
 		} else if (cmd->cmd_done == pmcraid_internal_done ||
 			   cmd->cmd_done == pmcraid_erp_done) {
 			cmd->cmd_done(cmd);
@@ -2814,7 +2814,7 @@ static int _pmcraid_io_done(struct pmcraid_cmd *cmd, int reslen, int ioasc)
 
 	if (rc == 0) {
 		scsi_dma_unmap(scsi_cmd);
-		scsi_cmd->scsi_done(scsi_cmd);
+		scsi_done(scsi_cmd);
 	}
 
 	return rc;
@@ -3328,7 +3328,6 @@ static int pmcraid_queuecommand_lck(
 	pinstance =
 		(struct pmcraid_instance *)scsi_cmd->device->host->hostdata;
 	fw_version = be16_to_cpu(pinstance->inq_data->fw_version);
-	scsi_cmd->scsi_done = done;
 	res = scsi_cmd->device->hostdata;
 	scsi_cmd->result = (DID_OK << 16);
 
@@ -3338,7 +3337,7 @@ static int pmcraid_queuecommand_lck(
 	if (pinstance->ioa_state == IOA_STATE_DEAD) {
 		pmcraid_info("IOA is dead, but queuecommand is scheduled\n");
 		scsi_cmd->result = (DID_NO_CONNECT << 16);
-		scsi_cmd->scsi_done(scsi_cmd);
+		scsi_done(scsi_cmd);
 		return 0;
 	}
 
@@ -3351,7 +3350,7 @@ static int pmcraid_queuecommand_lck(
 	 */
 	if (scsi_cmd->cmnd[0] == SYNCHRONIZE_CACHE) {
 		pmcraid_info("SYNC_CACHE(0x35), completing in driver itself\n");
-		scsi_cmd->scsi_done(scsi_cmd);
+		scsi_done(scsi_cmd);
 		return 0;
 	}
 

[PATCH v3 61/88] ppa: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/ppa.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c
index 977315fdc254..799ad8562e24 100644
--- a/drivers/scsi/ppa.c
+++ b/drivers/scsi/ppa.c
@@ -665,7 +665,7 @@ static void ppa_interrupt(struct work_struct *work)
 
 	dev->cur_cmd = NULL;
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
@@ -798,7 +798,6 @@ static int ppa_queuecommand_lck(struct scsi_cmnd *cmd,
 	dev->failed = 0;
 	dev->jstart = jiffies;
 	dev->cur_cmd = cmd;
-	cmd->scsi_done = done;
 	cmd->result = DID_ERROR << 16;	/* default return code */
 	cmd->SCp.phase = 0;	/* bus free */
 

[PATCH v3 62/88] ps3rom: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/ps3rom.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ps3rom.c b/drivers/scsi/ps3rom.c
index 0f4b99d92f12..08e970300b3f 100644
--- a/drivers/scsi/ps3rom.c
+++ b/drivers/scsi/ps3rom.c
@@ -209,7 +209,6 @@ static int ps3rom_queuecommand_lck(struct scsi_cmnd *cmd,
 	int res;
 
 	priv->curr_cmd = cmd;
-	cmd->scsi_done = done;
 
 	opcode = cmd->cmnd[0];
 	/*
@@ -237,7 +236,7 @@ static int ps3rom_queuecommand_lck(struct scsi_cmnd *cmd,
 		scsi_build_sense(cmd, 0, ILLEGAL_REQUEST, 0, 0);
 		cmd->result = res;
 		priv->curr_cmd = NULL;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 	}
 
 	return 0;
@@ -321,7 +320,7 @@ static irqreturn_t ps3rom_interrupt(int irq, void *data)
 
 done:
 	priv->curr_cmd = NULL;
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	return IRQ_HANDLED;
 }
 

[PATCH v3 63/88] qedf: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/qedf/qedf_io.c | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c
index 3404782988d5..14aa544b0bc3 100644
--- a/drivers/scsi/qedf/qedf_io.c
+++ b/drivers/scsi/qedf/qedf_io.c
@@ -947,7 +947,7 @@ qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd)
 			 "Number of SG elements %d exceeds what hardware limitation of %d.\n",
 			 num_sgs, QEDF_MAX_BDS_PER_CMD);
 		sc_cmd->result = DID_ERROR;
-		sc_cmd->scsi_done(sc_cmd);
+		scsi_done(sc_cmd);
 		return 0;
 	}
 
@@ -957,7 +957,7 @@ qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd)
 			  "Returning DNC as unloading or stop io, flags 0x%lx.\n",
 			  qedf->flags);
 		sc_cmd->result = DID_NO_CONNECT << 16;
-		sc_cmd->scsi_done(sc_cmd);
+		scsi_done(sc_cmd);
 		return 0;
 	}
 
@@ -966,7 +966,7 @@ qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd)
 		    "Completing sc_cmd=%p DID_NO_CONNECT as MSI-X is not enabled.\n",
 		    sc_cmd);
 		sc_cmd->result = DID_NO_CONNECT << 16;
-		sc_cmd->scsi_done(sc_cmd);
+		scsi_done(sc_cmd);
 		return 0;
 	}
 
@@ -976,7 +976,7 @@ qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd)
 			  "fc_remote_port_chkready failed=0x%x for port_id=0x%06x.\n",
 			  rval, rport->port_id);
 		sc_cmd->result = rval;
-		sc_cmd->scsi_done(sc_cmd);
+		scsi_done(sc_cmd);
 		return 0;
 	}
 
@@ -1313,7 +1313,7 @@ void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
 
 	io_req->sc_cmd = NULL;
 	sc_cmd->SCp.ptr =  NULL;
-	sc_cmd->scsi_done(sc_cmd);
+	scsi_done(sc_cmd);
 	kref_put(&io_req->refcount, qedf_release_cmd);
 }
 
@@ -1386,13 +1386,6 @@ void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
 		goto bad_scsi_ptr;
 	}
 
-	if (!sc_cmd->scsi_done) {
-		QEDF_ERR(&qedf->dbg_ctx,
-			 "sc_cmd->scsi_done for sc_cmd %p is NULL.\n",
-			 sc_cmd);
-		goto bad_scsi_ptr;
-	}
-
 	qedf_unmap_sg_list(qedf, io_req);
 
 	sc_cmd->result = result << 16;
@@ -1417,7 +1410,7 @@ void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
 
 	io_req->sc_cmd = NULL;
 	sc_cmd->SCp.ptr = NULL;
-	sc_cmd->scsi_done(sc_cmd);
+	scsi_done(sc_cmd);
 	kref_put(&io_req->refcount, qedf_release_cmd);
 	return;
 

[PATCH v3 64/88] qla1280: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/qla1280.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index d0b4e063bfe1..c508a6e20519 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -697,7 +697,6 @@ qla1280_queuecommand_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
 	struct srb *sp = (struct srb *)CMD_SP(cmd);
 	int status;
 
-	cmd->scsi_done = fn;
 	sp->cmd = cmd;
 	sp->flags = 0;
 	sp->wait = NULL;
@@ -755,7 +754,7 @@ _qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
 	sp->wait = NULL;
 	if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
 		status = SUCCESS;
-		(*cmd->scsi_done)(cmd);
+		scsi_done(cmd);
 	}
 	return status;
 }
@@ -1277,7 +1276,7 @@ qla1280_done(struct scsi_qla_host *ha)
 		ha->actthreads--;
 
 		if (sp->wait == NULL)
-			(*(cmd)->scsi_done)(cmd);
+			scsi_done(cmd);
 		else
 			complete(sp->wait);
 	}

[PATCH v3 65/88] qla2xxx: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/qla2xxx/qla_os.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 03ff2596715b..5d576a3ba14f 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -737,7 +737,7 @@ void qla2x00_sp_compl(srb_t *sp, int res)
 	sp->free(sp);
 	cmd->result = res;
 	CMD_SP(cmd) = NULL;
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	if (comp)
 		complete(comp);
 }
@@ -828,7 +828,7 @@ void qla2xxx_qpair_sp_compl(srb_t *sp, int res)
 	sp->free(sp);
 	cmd->result = res;
 	CMD_SP(cmd) = NULL;
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	if (comp)
 		complete(comp);
 }
@@ -950,7 +950,7 @@ qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	return SCSI_MLQUEUE_TARGET_BUSY;
 
 qc24_fail_command:
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 
 	return 0;
 }
@@ -1038,7 +1038,7 @@ qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
 	return SCSI_MLQUEUE_TARGET_BUSY;
 
 qc24_fail_command:
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 
 	return 0;
 }

[PATCH v3 66/88] qla4xxx: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/qla4xxx/ql4_os.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index f1ea65c6e5f5..76d0b59a9982 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -4080,7 +4080,7 @@ void qla4xxx_srb_compl(struct kref *ref)
 
 	mempool_free(srb, ha->srb_mempool);
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 /**
@@ -4154,7 +4154,7 @@ static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	return SCSI_MLQUEUE_HOST_BUSY;
 
 qc_fail_command:
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 
 	return 0;
 }

[PATCH v3 67/88] qlogicfas408: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/qlogicfas408.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c
index 3bbe0b5545d9..5471c046a4b7 100644
--- a/drivers/scsi/qlogicfas408.c
+++ b/drivers/scsi/qlogicfas408.c
@@ -442,7 +442,7 @@ static void ql_ihandl(void *dev_id)
 	 *	If result is CHECK CONDITION done calls qcommand to request
 	 *	sense
 	 */
-	(icmd->scsi_done) (icmd);
+	scsi_done(icmd);
 }
 
 irqreturn_t qlogicfas408_ihandl(int irq, void *dev_id)
@@ -473,7 +473,6 @@ static int qlogicfas408_queuecommand_lck(struct scsi_cmnd *cmd,
 		return 0;
 	}
 
-	cmd->scsi_done = done;
 	/* wait for the last command's interrupt to finish */
 	while (priv->qlcmd != NULL) {
 		barrier();

[PATCH v3 68/88] qlogicpti: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/qlogicpti.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index 8e7e833a36cc..30b5e98b5de0 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -1021,8 +1021,6 @@ static int qlogicpti_queuecommand_lck(struct scsi_cmnd *Cmnd, void (*done)(struc
 	u_int out_ptr;
 	int in_ptr;
 
-	Cmnd->scsi_done = done;
-
 	in_ptr = qpti->req_in_ptr;
 	cmd = (struct Command_Entry *) &qpti->req_cpu[in_ptr];
 	out_ptr = sbus_readw(qpti->qregs + MBOX4);
@@ -1214,7 +1212,7 @@ static irqreturn_t qpti_intr(int irq, void *dev_id)
 			struct scsi_cmnd *next;
 
 			next = (struct scsi_cmnd *) dq->host_scribble;
-			dq->scsi_done(dq);
+			scsi_done(dq);
 			dq = next;
 		} while (dq != NULL);
 	}

[PATCH v3 69/88] scsi_debug: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/scsi_debug.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 66f507469a31..407f1ce15118 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -4809,7 +4809,7 @@ static void sdebug_q_cmd_complete(struct sdebug_defer *sd_dp)
 			pr_info("bypassing scsi_done() due to aborted cmd\n");
 		return;
 	}
-	scp->scsi_done(scp); /* callback to mid level */
+	scsi_done(scp); /* callback to mid level */
 }
 
 /* When high resolution timer goes off this function is called. */
@@ -5524,7 +5524,7 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
 					if (new_sd_dp)
 						kfree(sd_dp);
 					/* call scsi_done() from this thread */
-					cmnd->scsi_done(cmnd);
+					scsi_done(cmnd);
 					return 0;
 				}
 				/* otherwise reduce kt by elapsed time */
@@ -5604,7 +5604,7 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
 	cmnd->result &= ~SDEG_RES_IMMED_MASK;
 	if (cmnd->result == 0 && scsi_result != 0)
 		cmnd->result = scsi_result;
-	cmnd->scsi_done(cmnd);
+	scsi_done(cmnd);
 	return 0;
 }
 
@@ -7363,7 +7363,7 @@ static int sdebug_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num)
 		}
 		sd_dp->defer_t = SDEB_DEFER_NONE;
 		spin_unlock_irqrestore(&sqp->qc_lock, iflags);
-		scp->scsi_done(scp); /* callback to mid level */
+		scsi_done(scp); /* callback to mid level */
 		spin_lock_irqsave(&sqp->qc_lock, iflags);
 		num_entries++;
 	}

[PATCH v3 70/88] smartpqi: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/smartpqi/smartpqi_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index b966ce3b4385..54c12b149fda 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -195,7 +195,7 @@ static char *pqi_raid_level_to_string(u8 raid_level)
 static inline void pqi_scsi_done(struct scsi_cmnd *scmd)
 {
 	pqi_prep_for_scsi_done(scmd);
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 }
 
 static inline void pqi_disable_write_same(struct scsi_device *sdev)

[PATCH v3 71/88] snic: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/snic/snic_scsi.c | 33 ++++++++++++++-------------------
 1 file changed, 14 insertions(+), 19 deletions(-)

diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c
index 43a950185e24..5f17666f3e1d 100644
--- a/drivers/scsi/snic/snic_scsi.c
+++ b/drivers/scsi/snic/snic_scsi.c
@@ -342,7 +342,7 @@ snic_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc)
 		SNIC_HOST_ERR(shost, "Tgt %p id %d Not Ready.\n", tgt, tgt->id);
 		atomic64_inc(&snic->s_stats.misc.tgt_not_rdy);
 		sc->result = ret;
-		sc->scsi_done(sc);
+		scsi_done(sc);
 
 		return 0;
 	}
@@ -676,8 +676,7 @@ snic_icmnd_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
 		 SNIC_TRC_CMD(sc), SNIC_TRC_CMD_STATE_FLAGS(sc));
 
 
-	if (sc->scsi_done)
-		sc->scsi_done(sc);
+	scsi_done(sc);
 
 	snic_stats_update_io_cmpl(&snic->s_stats);
 } /* end of snic_icmnd_cmpl_handler */
@@ -855,14 +854,12 @@ snic_process_itmf_cmpl(struct snic *snic,
 
 		snic_release_req_buf(snic, rqi, sc);
 
-		if (sc->scsi_done) {
-			SNIC_TRC(snic->shost->host_no, cmnd_id, (ulong) sc,
-				 jiffies_to_msecs(jiffies - start_time),
-				 (ulong) fwreq, SNIC_TRC_CMD(sc),
-				 SNIC_TRC_CMD_STATE_FLAGS(sc));
+		SNIC_TRC(snic->shost->host_no, cmnd_id, (ulong) sc,
+			 jiffies_to_msecs(jiffies - start_time),
+			 (ulong) fwreq, SNIC_TRC_CMD(sc),
+			 SNIC_TRC_CMD_STATE_FLAGS(sc));
 
-			sc->scsi_done(sc);
-		}
+		scsi_done(sc);
 
 		break;
 
@@ -1475,7 +1472,7 @@ snic_abort_finish(struct snic *snic, struct scsi_cmnd *sc)
 		 * Call scsi_done to complete the IO.
 		 */
 		sc->result = (DID_ERROR << 16);
-		sc->scsi_done(sc);
+		scsi_done(sc);
 		break;
 
 	default:
@@ -1855,7 +1852,7 @@ snic_dr_clean_single_req(struct snic *snic,
 	snic_release_req_buf(snic, rqi, sc);
 
 	sc->result = (DID_ERROR << 16);
-	sc->scsi_done(sc);
+	scsi_done(sc);
 
 	ret = 0;
 
@@ -2500,14 +2497,12 @@ snic_scsi_cleanup(struct snic *snic, int ex_tag)
 		/* Update IO stats */
 		snic_stats_update_io_cmpl(&snic->s_stats);
 
-		if (sc->scsi_done) {
-			SNIC_TRC(snic->shost->host_no, tag, (ulong) sc,
-				 jiffies_to_msecs(jiffies - st_time), 0,
-				 SNIC_TRC_CMD(sc),
-				 SNIC_TRC_CMD_STATE_FLAGS(sc));
+		SNIC_TRC(snic->shost->host_no, tag, (ulong) sc,
+			 jiffies_to_msecs(jiffies - st_time), 0,
+			 SNIC_TRC_CMD(sc),
+			 SNIC_TRC_CMD_STATE_FLAGS(sc));
 
-			sc->scsi_done(sc);
-		}
+		scsi_done(sc);
 	}
 } /* end of snic_scsi_cleanup */
 

[PATCH v3 72/88] stex: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/stex.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index f1ba7f5b52a8..2f96a2fdaa40 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -574,7 +574,7 @@ static void return_abnormal_state(struct st_hba *hba, int status)
 		if (ccb->cmd) {
 			scsi_dma_unmap(ccb->cmd);
 			ccb->cmd->result = status << 16;
-			ccb->cmd->scsi_done(ccb->cmd);
+			scsi_done(ccb->cmd);
 			ccb->cmd = NULL;
 		}
 	}
@@ -688,8 +688,6 @@ stex_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 		break;
 	}
 
-	cmd->scsi_done = done;
-
 	tag = scsi_cmd_to_rq(cmd)->tag;
 
 	if (unlikely(tag >= host->can_queue))
@@ -764,7 +762,7 @@ static void stex_scsi_done(struct st_ccb *ccb)
 	}
 
 	cmd->result = result;
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 static void stex_copy_data(struct st_ccb *ccb,

[PATCH v3 73/88] storvsc_drv: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/storvsc_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index ebbbc1299c62..70d0b1dd0f75 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1154,7 +1154,7 @@ static void storvsc_command_completion(struct storvsc_cmd_request *cmd_request,
 	scsi_set_resid(scmnd,
 		cmd_request->payload->range.len - data_transfer_length);
 
-	scmnd->scsi_done(scmnd);
+	scsi_done(scmnd);
 
 	if (payload_sz >
 		sizeof(struct vmbus_channel_packet_multipage_buffer))
@@ -1753,7 +1753,7 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd)
 		 * future versions of the host.
 		 */
 		if (!storvsc_scsi_cmd_ok(scmnd)) {
-			scmnd->scsi_done(scmnd);
+			scsi_done(scmnd);
 			return 0;
 		}
 	}

[PATCH v3 74/88] sym53c8xx_2: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/sym53c8xx_2/sym_glue.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index 6d0b07b9cb31..76747e180b17 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -133,7 +133,7 @@ void sym_xpt_done(struct sym_hcb *np, struct scsi_cmnd *cmd)
 		complete(ucmd->eh_done);
 
 	scsi_dma_unmap(cmd);
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 /*
@@ -493,7 +493,6 @@ static int sym53c8xx_queue_command_lck(struct scsi_cmnd *cmd,
 	struct sym_ucmd *ucp = SYM_UCMD_PTR(cmd);
 	int sts = 0;
 
-	cmd->scsi_done = done;
 	memset(ucp, 0, sizeof(*ucp));
 
 	/*

[PATCH v3 75/88] ufs: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/ufs/ufshcd.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d91a405fd181..a04c373e6b07 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2704,7 +2704,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 		if (hba->pm_op_in_progress) {
 			hba->force_reset = true;
 			set_host_byte(cmd, DID_BAD_TARGET);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			goto out;
 		}
 		fallthrough;
@@ -2713,7 +2713,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 		goto out;
 	case UFSHCD_STATE_ERROR:
 		set_host_byte(cmd, DID_ERROR);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		goto out;
 	}
 
@@ -5294,7 +5294,7 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 			/* Mark completed command as NULL in LRB */
 			lrbp->cmd = NULL;
 			/* Do not touch lrbp after scsi done */
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			ufshcd_release(hba);
 			update_scaling = true;
 		} else if (lrbp->command_type == UTP_CMD_TYPE_DEV_MANAGE ||

[PATCH v3 76/88] virtio_scsi: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly. Additionally, update a comment that refers to the
REQ_ATOM_COMPLETE flag since that flag has been removed a long time ago.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/virtio_scsi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index c25ce8f0e0af..574195cbd5c3 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -163,7 +163,7 @@ static void virtscsi_complete_cmd(struct virtio_scsi *vscsi, void *buf)
 			     VIRTIO_SCSI_SENSE_SIZE));
 	}
 
-	sc->scsi_done(sc);
+	scsi_done(sc);
 }
 
 static void virtscsi_vq_done(struct virtio_scsi *vscsi,
@@ -619,9 +619,8 @@ static int virtscsi_tmf(struct virtio_scsi *vscsi, struct virtio_scsi_cmd *cmd)
 	 * we're using independent interrupts (e.g. MSI).  Poll the
 	 * virtqueues once.
 	 *
-	 * In the abort case, sc->scsi_done will do nothing, because
-	 * the block layer must have detected a timeout and as a result
-	 * REQ_ATOM_COMPLETE has been set.
+	 * In the abort case, scsi_done() will do nothing, because the
+	 * command timed out and hence SCMD_STATE_COMPLETE has been set.
 	 */
 	virtscsi_poll_requests(vscsi);
 

[PATCH v3 77/88] vmw_pvscsi: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/vmw_pvscsi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index ce1ba1b93629..7bfa023d0feb 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -643,7 +643,7 @@ static void pvscsi_complete_request(struct pvscsi_adapter *adapter,
 		"cmd=%p %x ctx=%p result=0x%x status=0x%x,%x\n",
 		cmd, cmd->cmnd[0], ctx, cmd->result, btstat, sdstat);
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 /*
@@ -786,7 +786,6 @@ static int pvscsi_queue_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd
 		return SCSI_MLQUEUE_HOST_BUSY;
 	}
 
-	cmd->scsi_done = done;
 	op = cmd->cmnd[0];
 
 	dev_dbg(&cmd->device->sdev_gendev,
@@ -860,7 +859,7 @@ static int pvscsi_abort(struct scsi_cmnd *cmd)
 	 * Successfully aborted the command.
 	 */
 	cmd->result = (DID_ABORT << 16);
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 
 out:
 	spin_unlock_irqrestore(&adapter->hw_lock, flags);
@@ -887,7 +886,7 @@ static void pvscsi_reset_all(struct pvscsi_adapter *adapter)
 			pvscsi_patch_sense(cmd);
 			pvscsi_release_context(adapter, ctx);
 			cmd->result = (DID_RESET << 16);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 		}
 	}
 }

[PATCH v3 78/88] wd33c93: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/wd33c93.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index 4468bc45aaa4..fe28d21c7e93 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -376,11 +376,9 @@ wd33c93_queuecommand_lck(struct scsi_cmnd *cmd,
 
 /* Set up a few fields in the scsi_cmnd structure for our own use:
  *  - host_scribble is the pointer to the next cmd in the input queue
- *  - scsi_done points to the routine we call when a cmd is finished
  *  - result is what you'd expect
  */
 	cmd->host_scribble = NULL;
-	cmd->scsi_done = done;
 	cmd->result = 0;
 
 /* We use the Scsi_Pointer structure that's included with each command
@@ -856,7 +854,7 @@ wd33c93_intr(struct Scsi_Host *instance)
 		cmd->result = DID_NO_CONNECT << 16;
 		hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xff));
 		hostdata->state = S_UNCONNECTED;
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 
 		/* From esp.c:
 		 * There is a window of time within the scsi_done() path
@@ -1183,7 +1181,7 @@ wd33c93_intr(struct Scsi_Host *instance)
 				scsi_msg_to_host_byte(cmd, cmd->SCp.Message);
 				set_status_byte(cmd, cmd->SCp.Status);
 			}
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 
 /* We are no longer  connected to a target - check to see if
  * there are commands waiting to be executed.
@@ -1270,7 +1268,7 @@ wd33c93_intr(struct Scsi_Host *instance)
 			scsi_msg_to_host_byte(cmd, cmd->SCp.Message);
 			set_status_byte(cmd, cmd->SCp.Status);
 		}
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 
 /* We are no longer connected to a target - check to see if
  * there are commands waiting to be executed.
@@ -1306,7 +1304,7 @@ wd33c93_intr(struct Scsi_Host *instance)
 				scsi_msg_to_host_byte(cmd, cmd->SCp.Message);
 				set_status_byte(cmd, cmd->SCp.Status);
 			}
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			break;
 		case S_PRE_TMP_DISC:
 		case S_RUNNING_LEVEL2:
@@ -1636,7 +1634,7 @@ wd33c93_abort(struct scsi_cmnd * cmd)
 			    ("scsi%d: Abort - removing command from input_Q. ",
 			     instance->host_no);
 			enable_irq(cmd->device->host->irq);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			return SUCCESS;
 		}
 		prev = tmp;
@@ -1711,7 +1709,7 @@ wd33c93_abort(struct scsi_cmnd * cmd)
 		wd33c93_execute(instance);
 
 		enable_irq(cmd->device->host->irq);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		return SUCCESS;
 	}
 

[PATCH v3 79/88] wd719x: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/wd719x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/wd719x.c b/drivers/scsi/wd719x.c
index 6f10a43510fb..1a7947554581 100644
--- a/drivers/scsi/wd719x.c
+++ b/drivers/scsi/wd719x.c
@@ -200,7 +200,7 @@ static void wd719x_finish_cmd(struct wd719x_scb *scb, int result)
 			 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
 
 	cmd->result = result << 16;
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 }
 
 /* Build a SCB and send it to the card */
@@ -295,7 +295,7 @@ static int wd719x_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
 			 DMA_BIDIRECTIONAL);
 out_error:
 	cmd->result = DID_ERROR << 16;
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	return 0;
 }
 

[PATCH v3 80/88] xen-scsifront: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/xen-scsifront.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index 0204e314b482..12c10a5e3d93 100644
--- a/drivers/scsi/xen-scsifront.c
+++ b/drivers/scsi/xen-scsifront.c
@@ -276,7 +276,7 @@ static void scsifront_cdb_cmd_done(struct vscsifrnt_info *info,
 	if (sense_len)
 		memcpy(sc->sense_buffer, ring_rsp->sense_buffer, sense_len);
 
-	sc->scsi_done(sc);
+	scsi_done(sc);
 }
 
 static void scsifront_sync_cmd_done(struct vscsifrnt_info *info,
@@ -558,7 +558,7 @@ static int scsifront_queuecommand(struct Scsi_Host *shost,
 		if (err == -ENOMEM)
 			return SCSI_MLQUEUE_HOST_BUSY;
 		sc->result = DID_ERROR << 16;
-		sc->scsi_done(sc);
+		scsi_done(sc);
 		return 0;
 	}
 

[PATCH v3 81/88] staging: rts5208: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/staging/rts5208/rtsx.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c
index 898add4d1fc8..f1136f6bcee2 100644
--- a/drivers/staging/rts5208/rtsx.c
+++ b/drivers/staging/rts5208/rtsx.c
@@ -140,7 +140,6 @@ static int queuecommand_lck(struct scsi_cmnd *srb,
 	}
 
 	/* enqueue the command and wake up the control thread */
-	srb->scsi_done = done;
 	chip->srb = srb;
 	complete(&dev->cmnd_ready);
 
@@ -423,7 +422,7 @@ static int rtsx_control_thread(void *__dev)
 
 		/* indicate that the command is done */
 		else if (chip->srb->result != DID_ABORT << 16) {
-			chip->srb->scsi_done(chip->srb);
+			scsi_done(chip->srb);
 		} else {
 skip_for_abort:
 			dev_err(&dev->pci->dev, "scsi command aborted\n");
@@ -635,7 +634,7 @@ static void quiesce_and_remove_host(struct rtsx_dev *dev)
 	if (chip->srb) {
 		chip->srb->result = DID_NO_CONNECT << 16;
 		scsi_lock(host);
-		chip->srb->scsi_done(dev->chip->srb);
+		scsi_done(dev->chip->srb);
 		chip->srb = NULL;
 		scsi_unlock(host);
 	}

[PATCH v3 82/88] staging: unisys: visorhba: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/staging/unisys/visorhba/visorhba_main.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c
index 41f8a72a2a95..6a8fa0587280 100644
--- a/drivers/staging/unisys/visorhba/visorhba_main.c
+++ b/drivers/staging/unisys/visorhba/visorhba_main.c
@@ -327,7 +327,7 @@ static int visorhba_abort_handler(struct scsi_cmnd *scsicmd)
 	rtn = forward_taskmgmt_command(TASK_MGMT_ABORT_TASK, scsidev);
 	if (rtn == SUCCESS) {
 		scsicmd->result = DID_ABORT << 16;
-		scsicmd->scsi_done(scsicmd);
+		scsi_done(scsicmd);
 	}
 	return rtn;
 }
@@ -354,7 +354,7 @@ static int visorhba_device_reset_handler(struct scsi_cmnd *scsicmd)
 	rtn = forward_taskmgmt_command(TASK_MGMT_LUN_RESET, scsidev);
 	if (rtn == SUCCESS) {
 		scsicmd->result = DID_RESET << 16;
-		scsicmd->scsi_done(scsicmd);
+		scsi_done(scsicmd);
 	}
 	return rtn;
 }
@@ -383,7 +383,7 @@ static int visorhba_bus_reset_handler(struct scsi_cmnd *scsicmd)
 	rtn = forward_taskmgmt_command(TASK_MGMT_BUS_RESET, scsidev);
 	if (rtn == SUCCESS) {
 		scsicmd->result = DID_RESET << 16;
-		scsicmd->scsi_done(scsicmd);
+		scsi_done(scsicmd);
 	}
 	return rtn;
 }
@@ -476,8 +476,7 @@ static int visorhba_queue_command_lck(struct scsi_cmnd *scsicmd,
 	 */
 	cmdrsp->scsi.handle = insert_location;
 
-	/* save done function that we have call when cmd is complete */
-	scsicmd->scsi_done = visorhba_cmnd_done;
+	WARN_ON_ONCE(visorhba_cmnd_done != scsi_done);
 	/* save destination */
 	cmdrsp->scsi.vdest.channel = scsidev->channel;
 	cmdrsp->scsi.vdest.id = scsidev->id;
@@ -686,8 +685,7 @@ static void visorhba_serverdown_complete(struct visorhba_devdata *devdata)
 		case CMD_SCSI_TYPE:
 			scsicmd = pendingdel->sent;
 			scsicmd->result = DID_RESET << 16;
-			if (scsicmd->scsi_done)
-				scsicmd->scsi_done(scsicmd);
+			scsi_done(scsicmd);
 			break;
 		case CMD_SCSITASKMGMT_TYPE:
 			cmdrsp = pendingdel->sent;
@@ -853,7 +851,7 @@ static void complete_scsi_command(struct uiscmdrsp *cmdrsp,
 	else
 		do_scsi_nolinuxstat(cmdrsp, scsicmd);
 
-	scsicmd->scsi_done(scsicmd);
+	scsi_done(scsicmd);
 }
 
 /*

[PATCH v3 83/88] target/tcm_loop: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/target/loopback/tcm_loop.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 52db28d868d5..4407b56aa6d1 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -71,7 +71,7 @@ static void tcm_loop_release_cmd(struct se_cmd *se_cmd)
 	if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
 		kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
 	else
-		sc->scsi_done(sc);
+		scsi_done(sc);
 }
 
 static int tcm_loop_show_info(struct seq_file *m, struct Scsi_Host *host)
@@ -165,7 +165,7 @@ static void tcm_loop_target_queue_cmd(struct tcm_loop_cmd *tl_cmd)
 	return;
 
 out_done:
-	sc->scsi_done(sc);
+	scsi_done(sc);
 }
 
 /*

[PATCH v3 84/88] usb: Call scsi_done() directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/usb/storage/scsiglue.c |  1 -
 drivers/usb/storage/uas.c      | 10 ++++------
 drivers/usb/storage/usb.c      |  4 ++--
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index e5a971b83e3f..9dfea19e5a91 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -393,7 +393,6 @@ static int queuecommand_lck(struct scsi_cmnd *srb,
 	}
 
 	/* enqueue the command and wake up the control thread */
-	srb->scsi_done = done;
 	us->srb = srb;
 	complete(&us->cmnd_ready);
 
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index bef89c6bd1d7..774d18907f47 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -256,7 +256,7 @@ static int uas_try_complete(struct scsi_cmnd *cmnd, const char *caller)
 		return -EBUSY;
 	devinfo->cmnd[cmdinfo->uas_tag - 1] = NULL;
 	uas_free_unsubmitted_urbs(cmnd);
-	cmnd->scsi_done(cmnd);
+	scsi_done(cmnd);
 	return 0;
 }
 
@@ -653,7 +653,7 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 		memcpy(cmnd->sense_buffer, usb_stor_sense_invalidCDB,
 		       sizeof(usb_stor_sense_invalidCDB));
 		cmnd->result = SAM_STAT_CHECK_CONDITION;
-		cmnd->scsi_done(cmnd);
+		scsi_done(cmnd);
 		return 0;
 	}
 
@@ -661,7 +661,7 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 
 	if (devinfo->resetting) {
 		set_host_byte(cmnd, DID_ERROR);
-		cmnd->scsi_done(cmnd);
+		scsi_done(cmnd);
 		goto zombie;
 	}
 
@@ -675,8 +675,6 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 		return SCSI_MLQUEUE_DEVICE_BUSY;
 	}
 
-	cmnd->scsi_done = done;
-
 	memset(cmdinfo, 0, sizeof(*cmdinfo));
 	cmdinfo->uas_tag = idx + 1; /* uas-tag == usb-stream-id, so 1 based */
 	cmdinfo->state = SUBMIT_STATUS_URB | ALLOC_CMD_URB | SUBMIT_CMD_URB;
@@ -706,7 +704,7 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 	 */
 	if (err == -ENODEV) {
 		set_host_byte(cmnd, DID_ERROR);
-		cmnd->scsi_done(cmnd);
+		scsi_done(cmnd);
 		goto zombie;
 	}
 	if (err) {
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 90aa9c12ffac..8b543f2c9857 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -388,7 +388,7 @@ static int usb_stor_control_thread(void * __us)
 		if (srb->result == DID_ABORT << 16) {
 SkipForAbort:
 			usb_stor_dbg(us, "scsi command aborted\n");
-			srb = NULL;	/* Don't call srb->scsi_done() */
+			srb = NULL;	/* Don't call scsi_done() */
 		}
 
 		/*
@@ -417,7 +417,7 @@ static int usb_stor_control_thread(void * __us)
 		if (srb) {
 			usb_stor_dbg(us, "scsi cmd done, result=0x%x\n",
 					srb->result);
-			srb->scsi_done(srb);
+			scsi_done(srb);
 		}
 	} /* for (;;) */
 

[PATCH v3 85/88] scsi: core: Call scsi_done directly

[Bart Van Assche]

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly. Since this patch removes the last user of the
scsi_done member, also remove that data structure member.

Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/hosts.c     | 2 +-
 drivers/scsi/scsi_lib.c  | 3 +--
 include/scsi/scsi_cmnd.h | 4 ----
 include/scsi/scsi_host.h | 2 +-
 4 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 3f6f14f0cafb..de5f5949a7a9 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -666,7 +666,7 @@ static bool complete_all_cmds_iter(struct request *rq, void *data, bool rsvd)
 	scsi_dma_unmap(scmd);
 	scmd->result = 0;
 	set_host_byte(scmd, status);
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 	return true;
 }
 
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index f690a2da21ea..d0b7c6dc74f8 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1520,7 +1520,7 @@ static int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
 
 	return rtn;
  done:
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	return 0;
 }
 
@@ -1694,7 +1694,6 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
 	scsi_set_resid(cmd, 0);
 	memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 	cmd->submitter = SUBMITTED_BY_BLOCK_LAYER;
-	cmd->scsi_done = scsi_done;
 
 	blk_mq_start_request(req);
 	reason = scsi_dispatch_cmd(cmd);
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 4edaadc293a7..7958a604f979 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -123,10 +123,6 @@ struct scsi_cmnd {
 				 * command (auto-sense). Length must be
 				 * SCSI_SENSE_BUFFERSIZE bytes. */
 
-	/* Low-level done function - can be used by low-level driver to point
-	 *        to completion function.  Not used by mid/upper level code. */
-	void (*scsi_done) (struct scsi_cmnd *);
-
 	/*
 	 * The following fields can be written to by the host specific code. 
 	 * Everything else should be left alone. 
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index bc9c45ced145..04e9b821c0c7 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -516,7 +516,7 @@ struct scsi_host_template {
 		unsigned long irq_flags;				\
 		int rc;							\
 		spin_lock_irqsave(shost->host_lock, irq_flags);		\
-		rc = func_name##_lck (cmd, cmd->scsi_done);			\
+		rc = func_name##_lck(cmd, scsi_done);			\
 		spin_unlock_irqrestore(shost->host_lock, irq_flags);	\
 		return rc;						\
 	}

[PATCH v3 86/88] isci: Remove a declaration

[Bart Van Assche]

There is no function with the name isci_queuecommand(). Hence remove the
declaration for isci_queuecommand().

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/isci/task.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h
index 8f4531f22ac2..cae168b8916f 100644
--- a/drivers/scsi/isci/task.h
+++ b/drivers/scsi/isci/task.h
@@ -182,8 +182,4 @@ void *isci_task_ssp_request_get_response_data_address(
 u32 isci_task_ssp_request_get_response_data_length(
 	struct isci_request *request);
 
-int isci_queuecommand(
-	struct scsi_cmnd *scsi_cmd,
-	void (*donefunc)(struct scsi_cmnd *));
-
 #endif /* !defined(_SCI_TASK_H_) */

[PATCH v3 87/88] fas216: Introduce the function fas216_queue_command_internal()

[Bart Van Assche]

This patch does not change any functionality but prepares for removal of
the second argument of the fas216_queue_command_lck() function.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/arm/fas216.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index 9926383f79ea..285980b9257d 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -2186,7 +2186,7 @@ static void fas216_done(FAS216_Info *info, unsigned int result)
 }
 
 /**
- * fas216_queue_command - queue a command for adapter to process.
+ * fas216_queue_command_internal - queue a command for the adapter to process
  * @SCpnt: Command to queue
  * @done: done function to call once command is complete
  *
@@ -2194,8 +2194,8 @@ static void fas216_done(FAS216_Info *info, unsigned int result)
  * Returns: 0 on success, else error.
  * Notes: io_request_lock is held, interrupts are disabled.
  */
-static int fas216_queue_command_lck(struct scsi_cmnd *SCpnt,
-			 void (*done)(struct scsi_cmnd *))
+static int fas216_queue_command_internal(struct scsi_cmnd *SCpnt,
+					 void (*done)(struct scsi_cmnd *))
 {
 	FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
 	int result;
@@ -2235,6 +2235,12 @@ static int fas216_queue_command_lck(struct scsi_cmnd *SCpnt,
 	return result;
 }
 
+static int fas216_queue_command_lck(struct scsi_cmnd *SCpnt,
+				    void (*done)(struct scsi_cmnd *))
+{
+	return fas216_queue_command_internal(SCpnt, done);
+}
+
 DEF_SCSI_QCMD(fas216_queue_command)
 
 /**
@@ -2274,7 +2280,7 @@ static int fas216_noqueue_command_lck(struct scsi_cmnd *SCpnt,
 	BUG_ON(info->scsi.irq);
 
 	info->internal_done = 0;
-	fas216_queue_command_lck(SCpnt, fas216_internal_done);
+	fas216_queue_command_internal(SCpnt, fas216_internal_done);
 
 	/*
 	 * This wastes time, since we can't return until the command is

[PATCH v3 88/88] scsi: Remove the 'done' argument from SCSI queuecommand_lck functions

[Bart Van Assche]

The DEF_SCSI_QCMD() macro passes the addresses of the SCSI host lock and
also that of the scsi_done function to the queuecommand_lck() function
implementations. Remove the 'scsi_done' argument since its address is
now a constant and instead call 'scsi_done' directly from inside the
queuecommand_lck() functions.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/3w-9xxx.c                          |  3 ++-
 drivers/scsi/3w-sas.c                           |  3 ++-
 drivers/scsi/3w-xxxx.c                          |  3 ++-
 drivers/scsi/53c700.c                           |  3 +--
 drivers/scsi/BusLogic.c                         |  4 ++--
 drivers/scsi/a100u2w.c                          |  2 +-
 drivers/scsi/advansys.c                         |  3 +--
 drivers/scsi/aha152x.c                          |  4 +---
 drivers/scsi/aha1740.c                          |  4 ++--
 drivers/scsi/aic7xxx/aic79xx_osm.c              |  3 +--
 drivers/scsi/aic7xxx/aic7xxx_osm.c              |  3 +--
 drivers/scsi/arcmsr/arcmsr_hba.c                |  3 +--
 drivers/scsi/arm/acornscsi.c                    | 14 +++-----------
 drivers/scsi/arm/fas216.c                       | 10 ++++------
 drivers/scsi/atp870u.c                          |  4 ++--
 drivers/scsi/bfa/bfad_im.c                      |  4 ++--
 drivers/scsi/dc395x.c                           |  3 ++-
 drivers/scsi/dpt_i2o.c                          |  2 +-
 drivers/scsi/esp_scsi.c                         |  2 +-
 drivers/scsi/fnic/fnic_scsi.c                   |  3 ++-
 drivers/scsi/hptiop.c                           |  3 +--
 drivers/scsi/ibmvscsi/ibmvscsi.c                |  4 ++--
 drivers/scsi/imm.c                              |  3 +--
 drivers/scsi/initio.c                           |  3 +--
 drivers/scsi/ips.c                              |  3 ++-
 drivers/scsi/mac53c94.c                         |  3 +--
 drivers/scsi/megaraid.c                         |  3 +--
 drivers/scsi/megaraid/megaraid_mbox.c           |  4 ++--
 drivers/scsi/mesh.c                             |  2 +-
 drivers/scsi/ncr53c8xx.c                        |  3 ++-
 drivers/scsi/nsp32.c                            |  4 ++--
 drivers/scsi/pcmcia/nsp_cs.c                    |  3 +--
 drivers/scsi/pcmcia/sym53c500_cs.c              |  3 +--
 drivers/scsi/pmcraid.c                          |  5 +----
 drivers/scsi/ppa.c                              |  3 +--
 drivers/scsi/ps3rom.c                           |  3 +--
 drivers/scsi/qla1280.c                          |  3 +--
 drivers/scsi/qlogicfas408.c                     |  4 ++--
 drivers/scsi/qlogicpti.c                        |  3 ++-
 drivers/scsi/stex.c                             |  4 ++--
 drivers/scsi/sym53c8xx_2/sym_glue.c             |  3 +--
 drivers/scsi/vmw_pvscsi.c                       |  2 +-
 drivers/scsi/wd33c93.c                          |  4 +---
 drivers/staging/rts5208/rtsx.c                  |  4 ++--
 drivers/staging/unisys/visorhba/visorhba_main.c |  5 ++---
 drivers/usb/image/microtek.c                    |  5 ++---
 drivers/usb/storage/scsiglue.c                  |  4 ++--
 drivers/usb/storage/uas.c                       |  3 +--
 include/scsi/scsi_host.h                        |  2 +-
 49 files changed, 75 insertions(+), 103 deletions(-)

diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 4ebc2c79f45f..778d4892ed7d 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1744,8 +1744,9 @@ static int twa_scsi_eh_reset(struct scsi_cmnd *SCpnt)
 } /* End twa_scsi_eh_reset() */
 
 /* This is the main scsi queue function to handle scsi opcodes */
-static int twa_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
+static int twa_scsi_queue_lck(struct scsi_cmnd *SCpnt)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	int request_id, retval;
 	TW_Device_Extension *tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
 
diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
index e6f51904f5b1..fc9a2f27aaf9 100644
--- a/drivers/scsi/3w-sas.c
+++ b/drivers/scsi/3w-sas.c
@@ -1450,8 +1450,9 @@ static int twl_scsi_eh_reset(struct scsi_cmnd *SCpnt)
 } /* End twl_scsi_eh_reset() */
 
 /* This is the main scsi queue function to handle scsi opcodes */
-static int twl_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
+static int twl_scsi_queue_lck(struct scsi_cmnd *SCpnt)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	int request_id, retval;
 	TW_Device_Extension *tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
 
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index bdd3ab8875e2..498a5ab7a321 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -1918,8 +1918,9 @@ static int tw_scsiop_test_unit_ready_complete(TW_Device_Extension *tw_dev, int r
 } /* End tw_scsiop_test_unit_ready_complete() */
 
 /* This is the main scsi queue function to handle scsi opcodes */
-static int tw_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
+static int tw_scsi_queue_lck(struct scsi_cmnd *SCpnt)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	unsigned char *command = SCpnt->cmnd;
 	int request_id = 0;
 	int retval = 1;
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index e7ed2fd6cdec..f1cbac77959e 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1751,8 +1751,7 @@ NCR_700_intr(int irq, void *dev_id)
 	return IRQ_RETVAL(handled);
 }
 
-static int
-NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *))
+static int NCR_700_queuecommand_lck(struct scsi_cmnd *SCp)
 {
 	struct NCR_700_Host_Parameters *hostdata = 
 		(struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0];
diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index 7287a9081684..a897c8f914cf 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -2866,9 +2866,9 @@ static int blogic_hostreset(struct scsi_cmnd *SCpnt)
   Outgoing Mailbox for execution by the associated Host Adapter.
 */
 
-static int blogic_qcmd_lck(struct scsi_cmnd *command,
-		void (*comp_cb) (struct scsi_cmnd *))
+static int blogic_qcmd_lck(struct scsi_cmnd *command)
 {
+	void (*comp_cb)(struct scsi_cmnd *) = scsi_done;
 	struct blogic_adapter *adapter =
 		(struct blogic_adapter *) command->device->host->hostdata;
 	struct blogic_tgt_flags *tgt_flags =
diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
index 68343bcb4616..564ade03b530 100644
--- a/drivers/scsi/a100u2w.c
+++ b/drivers/scsi/a100u2w.c
@@ -911,7 +911,7 @@ static int inia100_build_scb(struct orc_host * host, struct orc_scb * scb, struc
  *	queue the command down to the controller
  */
 
-static int inia100_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *))
+static int inia100_queue_lck(struct scsi_cmnd *cmd)
 {
 	struct orc_scb *scb;
 	struct orc_host *host;		/* Point to Host adapter control block */
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index f2f14fbd5069..ace5eff828e9 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -8453,8 +8453,7 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp)
  * This function always returns 0. Command return status is saved
  * in the 'scp' result field.
  */
-static int
-advansys_queuecommand_lck(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *))
+static int advansys_queuecommand_lck(struct scsi_cmnd *scp)
 {
 	struct Scsi_Host *shost = scp->device->host;
 	int asc_res, result = 0;
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index f07de9912790..d17880b57d17 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -975,10 +975,8 @@ static int aha152x_internal_queue(struct scsi_cmnd *SCpnt,
  *  queue a command
  *
  */
-static int aha152x_queue_lck(struct scsi_cmnd *SCpnt,
-			     void (*done)(struct scsi_cmnd *))
+static int aha152x_queue_lck(struct scsi_cmnd *SCpnt)
 {
-	WARN_ON_ONCE(done != scsi_done);
 	return aha152x_internal_queue(SCpnt, NULL, 0);
 }
 
diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c
index 39d8759fe558..18eb4cfcef9a 100644
--- a/drivers/scsi/aha1740.c
+++ b/drivers/scsi/aha1740.c
@@ -315,9 +315,9 @@ static irqreturn_t aha1740_intr_handle(int irq, void *dev_id)
 	return IRQ_RETVAL(handled);
 }
 
-static int aha1740_queuecommand_lck(struct scsi_cmnd * SCpnt,
-				    void (*done)(struct scsi_cmnd *))
+static int aha1740_queuecommand_lck(struct scsi_cmnd *SCpnt)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	unchar direction;
 	unchar *cmd = (unchar *) SCpnt->cmnd;
 	unchar target = scmd_id(SCpnt);
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index af49c32cfaf7..5d566d2b2997 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -572,8 +572,7 @@ ahd_linux_info(struct Scsi_Host *host)
 /*
  * Queue an SCB to the controller.
  */
-static int
-ahd_linux_queue_lck(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *))
+static int ahd_linux_queue_lck(struct scsi_cmnd *cmd)
 {
 	struct	 ahd_softc *ahd;
 	struct	 ahd_linux_device *dev = scsi_transport_device_data(cmd->device);
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index f2daca41f3f2..d3b1082654d5 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -518,8 +518,7 @@ ahc_linux_info(struct Scsi_Host *host)
 /*
  * Queue an SCB to the controller.
  */
-static int
-ahc_linux_queue_lck(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *))
+static int ahc_linux_queue_lck(struct scsi_cmnd *cmd)
 {
 	struct	 ahc_softc *ahc;
 	struct	 ahc_linux_device *dev = scsi_transport_device_data(cmd->device);
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index e2692ca87a6e..daa8cf61f6d6 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -3231,8 +3231,7 @@ static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
 	}
 }
 
-static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
-	void (* done)(struct scsi_cmnd *))
+static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd)
 {
 	struct Scsi_Host *host = cmd->device->host;
 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index dadaf5ee0ea9..81eb3bbdfc51 100644
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -2397,24 +2397,16 @@ acornscsi_intr(int irq, void *dev_id)
  */
 
 /*
- * Function : acornscsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+ * Function : acornscsi_queuecmd(struct scsi_cmnd *cmd)
  * Purpose  : queues a SCSI command
  * Params   : cmd  - SCSI command
- *	      done - function called on completion, with pointer to command descriptor
  * Returns  : 0, or < 0 on error.
  */
-static int acornscsi_queuecmd_lck(struct scsi_cmnd *SCpnt,
-		       void (*done)(struct scsi_cmnd *))
+static int acornscsi_queuecmd_lck(struct scsi_cmnd *SCpnt)
 {
+    void (*done)(struct scsi_cmnd *) = scsi_done;
     AS_Host *host = (AS_Host *)SCpnt->device->host->hostdata;
 
-    if (!done) {
-	/* there should be some way of rejecting errors like this without panicing... */
-	panic("scsi%d: queuecommand called with NULL done function [cmd=%p]",
-		host->host->host_no, SCpnt);
-	return -EINVAL;
-    }
-
 #if (DEBUG & DEBUG_NO_WRITE)
     if (acornscsi_cmdtype(SCpnt->cmnd[0]) == CMD_WRITE && (NO_WRITE & (1 << SCpnt->device->id))) {
 	printk(KERN_CRIT "scsi%d.%c: WRITE attempted with NO_WRITE flag set\n",
diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index 285980b9257d..423a85fda9f8 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -2235,10 +2235,9 @@ static int fas216_queue_command_internal(struct scsi_cmnd *SCpnt,
 	return result;
 }
 
-static int fas216_queue_command_lck(struct scsi_cmnd *SCpnt,
-				    void (*done)(struct scsi_cmnd *))
+static int fas216_queue_command_lck(struct scsi_cmnd *SCpnt)
 {
-	return fas216_queue_command_internal(SCpnt, done);
+	return fas216_queue_command_internal(SCpnt, scsi_done);
 }
 
 DEF_SCSI_QCMD(fas216_queue_command)
@@ -2266,8 +2265,7 @@ static void fas216_internal_done(struct scsi_cmnd *SCpnt)
  * Returns: scsi result code.
  * Notes: io_request_lock is held, interrupts are disabled.
  */
-static int fas216_noqueue_command_lck(struct scsi_cmnd *SCpnt,
-			   void (*done)(struct scsi_cmnd *))
+static int fas216_noqueue_command_lck(struct scsi_cmnd *SCpnt)
 {
 	FAS216_Info *info = (FAS216_Info *)SCpnt->device->host->hostdata;
 
@@ -2308,7 +2306,7 @@ static int fas216_noqueue_command_lck(struct scsi_cmnd *SCpnt,
 
 	spin_lock_irq(info->host->host_lock);
 
-	done(SCpnt);
+	scsi_done(SCpnt);
 
 	return 0;
 }
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 6e1595b32bc0..dcd6fae65a88 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -618,9 +618,9 @@ static irqreturn_t atp870u_intr_handle(int irq, void *dev_id)
  *
  *	Queue a command to the ATP queue. Called with the host lock held.
  */
-static int atp870u_queuecommand_lck(struct scsi_cmnd *req_p,
-			 void (*done) (struct scsi_cmnd *))
+static int atp870u_queuecommand_lck(struct scsi_cmnd *req_p)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	unsigned char c;
 	unsigned int m;
 	struct atp_unit *dev;
diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index e12ae60efd33..79d8f2af1294 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -1199,9 +1199,9 @@ bfad_im_itnim_work_handler(struct work_struct *work)
 /*
  * Scsi_Host template entry, queue a SCSI command to the BFAD.
  */
-static int
-bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
+static int bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	struct bfad_im_port_s *im_port =
 		(struct bfad_im_port_s *) cmnd->device->host->hostdata[0];
 	struct bfad_s         *bfad = im_port->bfad;
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index 5adbc7f61c19..9b8796c9e634 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -960,8 +960,9 @@ static void build_srb(struct scsi_cmnd *cmd, struct DeviceCtlBlk *dcb,
  *        and is expected to be held on return.
  *
  **/
-static int dc395x_queue_command_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int dc395x_queue_command_lck(struct scsi_cmnd *cmd)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	struct DeviceCtlBlk *dcb;
 	struct ScsiReqBlk *srb;
 	struct AdapterCtlBlk *acb =
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 1f00afcfe440..93227c04ef59 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -416,7 +416,7 @@ static int adpt_slave_configure(struct scsi_device * device)
 	return 0;
 }
 
-static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *))
+static int adpt_queue_lck(struct scsi_cmnd *cmd)
 {
 	adpt_hba* pHba = NULL;
 	struct adpt_device* pDev = NULL;	/* dpt per device information */
diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c
index f7c2d64f1cef..57787537285a 100644
--- a/drivers/scsi/esp_scsi.c
+++ b/drivers/scsi/esp_scsi.c
@@ -952,7 +952,7 @@ static void esp_event_queue_full(struct esp *esp, struct esp_cmd_entry *ent)
 	scsi_track_queue_full(dev, lp->num_tagged - 1);
 }
 
-static int esp_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int esp_queuecommand_lck(struct scsi_cmnd *cmd)
 {
 	struct scsi_device *dev = cmd->device;
 	struct esp *esp = shost_priv(dev->host);
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index 09b8bf5adaf5..88c549f257db 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -420,8 +420,9 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
  * Routine to send a scsi cdb
  * Called with host_lock held and interrupts disabled.
  */
-static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
+static int fnic_queuecommand_lck(struct scsi_cmnd *sc)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	const int tag = scsi_cmd_to_rq(sc)->tag;
 	struct fc_lport *lp = shost_priv(sc->device->host);
 	struct fc_rport *rport;
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index f18f6a677c1b..f9a9def394cc 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -993,8 +993,7 @@ static int hptiop_reset_comm_mvfrey(struct hptiop_hba *hba)
 	return 0;
 }
 
-static int hptiop_queuecommand_lck(struct scsi_cmnd *scp,
-				void (*done)(struct scsi_cmnd *))
+static int hptiop_queuecommand_lck(struct scsi_cmnd *scp)
 {
 	struct Scsi_Host *host = scp->device->host;
 	struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 50df7dd9cb91..5cc37859b874 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -1039,9 +1039,9 @@ static inline u16 lun_from_dev(struct scsi_device *dev)
  * @cmnd:	struct scsi_cmnd to be executed
  * @done:	Callback function to be called when cmd is completed
 */
-static int ibmvscsi_queuecommand_lck(struct scsi_cmnd *cmnd,
-				 void (*done) (struct scsi_cmnd *))
+static int ibmvscsi_queuecommand_lck(struct scsi_cmnd *cmnd)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	struct srp_cmd *srp_cmd;
 	struct srp_event_struct *evt_struct;
 	struct srp_indirect_buf *indirect;
diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index be8edcff0177..8afdb4dba2be 100644
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -910,8 +910,7 @@ static int imm_engine(imm_struct *dev, struct scsi_cmnd *cmd)
 	return 0;
 }
 
-static int imm_queuecommand_lck(struct scsi_cmnd *cmd,
-		void (*done)(struct scsi_cmnd *))
+static int imm_queuecommand_lck(struct scsi_cmnd *cmd)
 {
 	imm_struct *dev = imm_dev(cmd->device->host);
 
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
index 183f95758636..fd6da96bc51a 100644
--- a/drivers/scsi/initio.c
+++ b/drivers/scsi/initio.c
@@ -2609,8 +2609,7 @@ static void initio_build_scb(struct initio_host * host, struct scsi_ctrl_blk * c
  *	will cause the mid layer to call us again later with the command)
  */
 
-static int i91u_queuecommand_lck(struct scsi_cmnd *cmd,
-		void (*done)(struct scsi_cmnd *))
+static int i91u_queuecommand_lck(struct scsi_cmnd *cmd)
 {
 	struct initio_host *host = (struct initio_host *) cmd->device->host->hostdata;
 	struct scsi_ctrl_blk *cmnd;
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index 0c93ec359e9b..498bf04499ce 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -1035,8 +1035,9 @@ static int ips_eh_reset(struct scsi_cmnd *SC)
 /*    Linux obtains io_request_lock before calling this function            */
 /*                                                                          */
 /****************************************************************************/
-static int ips_queue_lck(struct scsi_cmnd *SC, void (*done) (struct scsi_cmnd *))
+static int ips_queue_lck(struct scsi_cmnd *SC)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	ips_ha_t *ha;
 	ips_passthru_t *pt;
 
diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c
index 9731855805f5..3976a18f6333 100644
--- a/drivers/scsi/mac53c94.c
+++ b/drivers/scsi/mac53c94.c
@@ -66,8 +66,7 @@ static irqreturn_t do_mac53c94_interrupt(int, void *);
 static void cmd_done(struct fsc_state *, int result);
 static void set_dma_cmds(struct fsc_state *, struct scsi_cmnd *);
 
-
-static int mac53c94_queue_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int mac53c94_queue_lck(struct scsi_cmnd *cmd)
 {
 	struct fsc_state *state;
 
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index c4ea833586e0..0d31d7a5e335 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -370,8 +370,7 @@ mega_runpendq(adapter_t *adapter)
  *
  * The command queuing entry point for the mid-layer.
  */
-static int
-megaraid_queue_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
+static int megaraid_queue_lck(struct scsi_cmnd *scmd)
 {
 	adapter_t	*adapter;
 	scb_t	*scb;
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 705c5027ba91..0f47a9862ef9 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -1432,9 +1432,9 @@ mbox_post_cmd(adapter_t *adapter, scb_t *scb)
  *
  * Queue entry point for mailbox based controllers.
  */
-static int
-megaraid_queue_command_lck(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *))
+static int megaraid_queue_command_lck(struct scsi_cmnd *scp)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	adapter_t	*adapter;
 	scb_t		*scb;
 	int		if_busy;
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index 73a3e85802ad..ca133e0a140a 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -1621,7 +1621,7 @@ static void cmd_complete(struct mesh_state *ms)
  * Called by midlayer with host locked to queue a new
  * request
  */
-static int mesh_queue_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int mesh_queue_lck(struct scsi_cmnd *cmd)
 {
 	struct mesh_state *ms;
 
diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index 6ad43a98409c..168b854ccf14 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -7852,8 +7852,9 @@ static int ncr53c8xx_slave_configure(struct scsi_device *device)
 	return 0;
 }
 
-static int ncr53c8xx_queue_command_lck (struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int ncr53c8xx_queue_command_lck(struct scsi_cmnd *cmd)
 {
+     void (*done)(struct scsi_cmnd *) = scsi_done;
      struct ncb *np = ((struct host_data *) cmd->device->host->hostdata)->ncb;
      unsigned long flags;
      int sts;
diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index 1057b6fd7569..bd3ee3bf08ee 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -904,9 +904,9 @@ static int nsp32_setup_sg_table(struct scsi_cmnd *SCpnt)
 	return TRUE;
 }
 
-static int nsp32_queuecommand_lck(struct scsi_cmnd *SCpnt,
-				  void (*done)(struct scsi_cmnd *))
+static int nsp32_queuecommand_lck(struct scsi_cmnd *SCpnt)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	nsp32_hw_data *data = (nsp32_hw_data *)SCpnt->device->host->hostdata;
 	nsp32_target *target;
 	nsp32_lunt   *cur_lunt;
diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
index 0271d534133a..8b9e889bc306 100644
--- a/drivers/scsi/pcmcia/nsp_cs.c
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -181,8 +181,7 @@ static void nsp_scsi_done(struct scsi_cmnd *SCpnt)
 	scsi_done(SCpnt);
 }
 
-static int nsp_queuecommand_lck(struct scsi_cmnd *SCpnt,
-			    void (*done)(struct scsi_cmnd *))
+static int nsp_queuecommand_lck(struct scsi_cmnd *SCpnt)
 {
 #ifdef NSP_DEBUG
 	/*unsigned int host_id = SCpnt->device->host->this_id;*/
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index d2adda815d7b..d5c30ac662ba 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -537,8 +537,7 @@ SYM53C500_info(struct Scsi_Host *SChost)
 	return (info_msg);
 }
 
-static int 
-SYM53C500_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
+static int SYM53C500_queue_lck(struct scsi_cmnd *SCpnt)
 {
 	int i;
 	int port_base = SCpnt->device->host->io_port;
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 11f36fd4e62f..18efb3e64c84 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -3313,10 +3313,7 @@ static int pmcraid_copy_sglist(
  *	  SCSI_MLQUEUE_DEVICE_BUSY if device is busy
  *	  SCSI_MLQUEUE_HOST_BUSY if host is busy
  */
-static int pmcraid_queuecommand_lck(
-	struct scsi_cmnd *scsi_cmd,
-	void (*done) (struct scsi_cmnd *)
-)
+static int pmcraid_queuecommand_lck(struct scsi_cmnd *scsi_cmd)
 {
 	struct pmcraid_instance *pinstance;
 	struct pmcraid_resource_entry *res;
diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c
index 799ad8562e24..003043de23a5 100644
--- a/drivers/scsi/ppa.c
+++ b/drivers/scsi/ppa.c
@@ -786,8 +786,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
 	return 0;
 }
 
-static int ppa_queuecommand_lck(struct scsi_cmnd *cmd,
-		void (*done) (struct scsi_cmnd *))
+static int ppa_queuecommand_lck(struct scsi_cmnd *cmd)
 {
 	ppa_struct *dev = ppa_dev(cmd->device->host);
 
diff --git a/drivers/scsi/ps3rom.c b/drivers/scsi/ps3rom.c
index 08e970300b3f..2b80cab70333 100644
--- a/drivers/scsi/ps3rom.c
+++ b/drivers/scsi/ps3rom.c
@@ -200,8 +200,7 @@ static int ps3rom_write_request(struct ps3_storage_device *dev,
 	return 0;
 }
 
-static int ps3rom_queuecommand_lck(struct scsi_cmnd *cmd,
-			       void (*done)(struct scsi_cmnd *))
+static int ps3rom_queuecommand_lck(struct scsi_cmnd *cmd)
 {
 	struct ps3rom_private *priv = shost_priv(cmd->device->host);
 	struct ps3_storage_device *dev = priv->dev;
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index c508a6e20519..1dc56f4c89d8 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -689,8 +689,7 @@ qla1280_info(struct Scsi_Host *host)
  * handling).   Unfortunately, it sometimes calls the scheduler in interrupt
  * context which is a big NO! NO!.
  **************************************************************************/
-static int
-qla1280_queuecommand_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
+static int qla1280_queuecommand_lck(struct scsi_cmnd *cmd)
 {
 	struct Scsi_Host *host = cmd->device->host;
 	struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c
index 5471c046a4b7..30a88849a626 100644
--- a/drivers/scsi/qlogicfas408.c
+++ b/drivers/scsi/qlogicfas408.c
@@ -460,9 +460,9 @@ irqreturn_t qlogicfas408_ihandl(int irq, void *dev_id)
  *	Queued command
  */
 
-static int qlogicfas408_queuecommand_lck(struct scsi_cmnd *cmd,
-			      void (*done) (struct scsi_cmnd *))
+static int qlogicfas408_queuecommand_lck(struct scsi_cmnd *cmd)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
 
 	set_host_byte(cmd, DID_OK);
diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index 30b5e98b5de0..57f2f4135a06 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -1013,8 +1013,9 @@ static int qlogicpti_slave_configure(struct scsi_device *sdev)
  *
  * "This code must fly." -davem
  */
-static int qlogicpti_queuecommand_lck(struct scsi_cmnd *Cmnd, void (*done)(struct scsi_cmnd *))
+static int qlogicpti_queuecommand_lck(struct scsi_cmnd *Cmnd)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	struct Scsi_Host *host = Cmnd->device->host;
 	struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata;
 	struct Command_Entry *cmd;
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index 2f96a2fdaa40..e6420f2127ce 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -590,9 +590,9 @@ stex_slave_config(struct scsi_device *sdev)
 	return 0;
 }
 
-static int
-stex_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int stex_queuecommand_lck(struct scsi_cmnd *cmd)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	struct st_hba *hba;
 	struct Scsi_Host *host;
 	unsigned int id, lun;
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index 76747e180b17..b04bfde65e3f 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -486,8 +486,7 @@ void sym_log_bus_error(struct Scsi_Host *shost)
  * queuecommand method.  Entered with the host adapter lock held and
  * interrupts disabled.
  */
-static int sym53c8xx_queue_command_lck(struct scsi_cmnd *cmd,
-					void (*done)(struct scsi_cmnd *))
+static int sym53c8xx_queue_command_lck(struct scsi_cmnd *cmd)
 {
 	struct sym_hcb *np = SYM_SOFTC_PTR(cmd);
 	struct sym_ucmd *ucp = SYM_UCMD_PTR(cmd);
diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index 7bfa023d0feb..c2ba65224633 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -768,7 +768,7 @@ static int pvscsi_queue_ring(struct pvscsi_adapter *adapter,
 	return 0;
 }
 
-static int pvscsi_queue_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int pvscsi_queue_lck(struct scsi_cmnd *cmd)
 {
 	struct Scsi_Host *host = cmd->device->host;
 	struct pvscsi_adapter *adapter = shost_priv(host);
diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index fe28d21c7e93..7d2f00f3571a 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -362,9 +362,7 @@ calc_sync_msg(unsigned int period, unsigned int offset, unsigned int fast,
 	msg[1] = offset;
 }
 
-static int
-wd33c93_queuecommand_lck(struct scsi_cmnd *cmd,
-		void (*done)(struct scsi_cmnd *))
+static int wd33c93_queuecommand_lck(struct scsi_cmnd *cmd)
 {
 	struct WD33C93_hostdata *hostdata;
 	struct scsi_cmnd *tmp;
diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c
index f1136f6bcee2..8d6139fce13e 100644
--- a/drivers/staging/rts5208/rtsx.c
+++ b/drivers/staging/rts5208/rtsx.c
@@ -118,9 +118,9 @@ static int slave_configure(struct scsi_device *sdev)
 
 /* queue a command */
 /* This is always called with scsi_lock(host) held */
-static int queuecommand_lck(struct scsi_cmnd *srb,
-			    void (*done)(struct scsi_cmnd *))
+static int queuecommand_lck(struct scsi_cmnd *srb)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	struct rtsx_dev *dev = host_to_rtsx(srb->device->host);
 	struct rtsx_chip *chip = dev->chip;
 
diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c
index 6a8fa0587280..b40c8cacb813 100644
--- a/drivers/staging/unisys/visorhba/visorhba_main.c
+++ b/drivers/staging/unisys/visorhba/visorhba_main.c
@@ -446,10 +446,9 @@ static u32 dma_data_dir_linux_to_spar(enum dma_data_direction d)
  * Return: 0 if successfully queued to the Service Partition, otherwise
  *	   error code
  */
-static int visorhba_queue_command_lck(struct scsi_cmnd *scsicmd,
-				      void (*visorhba_cmnd_done)
-					   (struct scsi_cmnd *))
+static int visorhba_queue_command_lck(struct scsi_cmnd *scsicmd)
 {
+	void (*visorhba_cmnd_done)(struct scsi_cmnd *) = scsi_done;
 	struct uiscmdrsp *cmdrsp;
 	struct scsi_device *scsidev = scsicmd->device;
 	int insert_location;
diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
index 59b02a539963..b8dc6fa6a5a3 100644
--- a/drivers/usb/image/microtek.c
+++ b/drivers/usb/image/microtek.c
@@ -561,10 +561,9 @@ mts_build_transfer_context(struct scsi_cmnd *srb, struct mts_desc* desc)
 	desc->context.data_pipe = pipe;
 }
 
-
-static int
-mts_scsi_queuecommand_lck(struct scsi_cmnd *srb, mts_scsi_cmnd_callback callback)
+static int mts_scsi_queuecommand_lck(struct scsi_cmnd *srb)
 {
+	mts_scsi_cmnd_callback callback = scsi_done;
 	struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
 	int res;
 
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 9dfea19e5a91..220aa1cf4b3d 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -363,9 +363,9 @@ static int target_alloc(struct scsi_target *starget)
 
 /* queue a command */
 /* This is always called with scsi_lock(host) held */
-static int queuecommand_lck(struct scsi_cmnd *srb,
-			void (*done)(struct scsi_cmnd *))
+static int queuecommand_lck(struct scsi_cmnd *srb)
 {
+	void (*done)(struct scsi_cmnd *) = scsi_done;
 	struct us_data *us = host_to_us(srb->device->host);
 
 	/* check for state-transition errors */
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 774d18907f47..7f2944729ecd 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -633,8 +633,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 	return 0;
 }
 
-static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
-					void (*done)(struct scsi_cmnd *))
+static int uas_queuecommand_lck(struct scsi_cmnd *cmnd)
 {
 	struct scsi_device *sdev = cmnd->device;
 	struct uas_dev_info *devinfo = sdev->hostdata;
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 04e9b821c0c7..3bb46b188e1c 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -516,7 +516,7 @@ struct scsi_host_template {
 		unsigned long irq_flags;				\
 		int rc;							\
 		spin_lock_irqsave(shost->host_lock, irq_flags);		\
-		rc = func_name##_lck(cmd, scsi_done);			\
+		rc = func_name##_lck(cmd);				\
 		spin_unlock_irqrestore(shost->host_lock, irq_flags);	\
 		return rc;						\
 	}

Re: [PATCH v3 69/88] scsi_debug: Call scsi_done() directly

[Douglas Gilbert]

On 2021-10-07 4:29 p.m., Bart Van Assche wrote:
> Conditional statements are faster than indirect calls. Hence call
> scsi_done() directly.
> 
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>

Acked-by: Douglas Gilbert <dgilbert@interlog.com>

Re: [PATCH v3 00/88] Call scsi_done() directly

[Martin K. Petersen]

Bart,

> This patch series increases IOPS by 5% on my test setup in a
> single-threaded test with queue depth 1 on top of the scsi_debug
> driver. Please consider this patch series for kernel v5.16.

Applied to 5.16/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

Re: [PATCH v3 00/88] Call scsi_done() directly

[Martin K. Petersen]

On Thu, 7 Oct 2021 13:27:55 -0700, Bart Van Assche wrote:

> This patch series increases IOPS by 5% on my test setup in a single-threaded
> test with queue depth 1 on top of the scsi_debug driver. Please consider this
> patch series for kernel v5.16.
> 
> Thanks,
> 
> Bart.
> 
> [...]

Applied to 5.16/scsi-queue, thanks!

[01/88] scsi: core: Use a structure member to track the SCSI command submitter
        https://git.kernel.org/mkp/scsi/c/bf23e619039d
[02/88] scsi: core: Rename scsi_mq_done() into scsi_done() and export it
        https://git.kernel.org/mkp/scsi/c/a710eacb9d13
[03/88] ata: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/58bf201dfc03
[04/88] firewire: sbp2: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/409d337e6bd6
[05/88] ib_srp: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/5f9ae9eecb15
[06/88] message: fusion: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/1ae6d167793c
[07/88] zfcp_scsi: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/68f89c50cd0c
[08/88] 3w-9xxx: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/3e6d3832dc1b
[09/88] 3w-sas: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/2adf975e899a
[10/88] 3w-xxxx: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/9dd9b96c2623
[11/88] 53c700: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/656f26ade03a
[12/88] BusLogic: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/0800a26aaa80
[13/88] NCR5380: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/117cd238adfe
[14/88] a100u2w: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/e42be9e75a02
[15/88] aacraid: Introduce aac_scsi_done()
        https://git.kernel.org/mkp/scsi/c/1dec65e32fb5
[16/88] aacraid: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/7afdb8637997
[17/88] acornscsi: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/396dd2c0b7b2
[18/88] advansys: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/f3bc9338e08d
[19/88] aha152x: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/3ab3b151ff12
[20/88] aha1542: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/135223527c81
[21/88] aic7xxx: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/07ebbc3a8067
[22/88] arcmsr: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/3f0b59b6852d
[23/88] atp870u: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/681fa5252fd4
[24/88] bfa: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/4316b5b8b2c6
[25/88] bnx2fc: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/a75af82a77d2
[26/88] csiostor: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/0979e265e4b7
[27/88] cxlflash: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/e82d6b179b14
[28/88] dc395x: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/6c365b880093
[29/88] dpt_i2o: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/e6ed928effb6
[30/88] esas2r: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/52e65d1c25a6
[31/88] esp_scsi: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/f8ab27d96494
[32/88] fas216: Introduce struct fas216_cmd_priv
        https://git.kernel.org/mkp/scsi/c/caffd3ad966e
[33/88] fas216: Stop using scsi_cmnd.scsi_done
        https://git.kernel.org/mkp/scsi/c/696fec18e17c
[34/88] fdomain: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/a0c22474cbc6
[35/88] fnic: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/a7510fbd879e
[36/88] hpsa: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/82f01edcf9a8
[37/88] hptiop: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/574015a83731
[38/88] ibmvscsi: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/85f6dd08c86a
[39/88] imm: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/0233196eb238
[40/88] initio: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/25e1d89669ec
[41/88] ipr: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/acd3c42d18f7
[42/88] ips: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/98cc0e69ba5d
[43/88] libfc: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/e0f63b2181cb
[44/88] libiscsi: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/b4b84edc5d39
[45/88] libsas: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/e803bc52b04b
[46/88] lpfc: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/ca068c2c6ca0
[47/88] mac53c94: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/c0e70ea3f719
[48/88] megaraid: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/012f14b269da
[49/88] megaraid: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/9e0603656fdf
[50/88] mesh: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/aaf2173b5cc3
[51/88] mpi3mr: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/1a30fd18f21b
[52/88] mpt3sas: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/b0c3007922f4
[53/88] mvumi: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/ca495999075b
[54/88] myrb: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/0061e3f5e0c2
[55/88] myrs: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/1c21a4f495cf
[57/88] ncr53c8xx: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/f0f4f79a4f7d
[58/88] nsp32: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/48760367a401
[59/88] pcmcia: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/ca0d62d29bb1
[60/88] pmcraid: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/f13cc234bec9
[61/88] ppa: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/7bc195c75134
[62/88] ps3rom: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/3ca2385af905
[63/88] qedf: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/ef697683d3eb
[64/88] qla1280: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/2d1609afd6d7
[65/88] qla2xxx: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/79e30b884a01
[66/88] qla4xxx: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/fdcfbd6517d9
[67/88] qlogicfas408: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/da65bc05cf91
[68/88] qlogicpti: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/c33a2dca9853
[69/88] scsi_debug: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/6c2c7d6aa439
[70/88] smartpqi: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/0ca190805784
[71/88] snic: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/70a5caf11f8c
[72/88] stex: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/4acf838e80ba
[73/88] storvsc_drv: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/0c31fa0e6619
[74/88] sym53c8xx_2: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/37425f5d07cc
[75/88] ufs: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/35c3730a9657
[76/88] virtio_scsi: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/b4194fcb1b51
[77/88] vmw_pvscsi: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/aeb2627dcfd9
[78/88] wd33c93: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/9c4f6be7ddec
[79/88] wd719x: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/f11e4da6bfc1
[80/88] xen-scsifront: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/fd17badb664e
[81/88] staging: rts5208: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/ae4ea859c079
[82/88] staging: unisys: visorhba: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/4879f233b4f8
[83/88] target/tcm_loop: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/b9d82b7dea2c
[84/88] usb: Call scsi_done() directly
        https://git.kernel.org/mkp/scsi/c/46c97948e9b5
[85/88] scsi: core: Call scsi_done directly
        https://git.kernel.org/mkp/scsi/c/11b68e36b167
[86/88] isci: Remove a declaration
        https://git.kernel.org/mkp/scsi/c/814818fd4816
[87/88] fas216: Introduce the function fas216_queue_command_internal()
        https://git.kernel.org/mkp/scsi/c/0feb3429d735
[88/88] scsi: Remove the 'done' argument from SCSI queuecommand_lck functions
        https://git.kernel.org/mkp/scsi/c/af049dfd0b10

-- 
Martin K. Petersen	Oracle Linux Engineering