[SCSI] libata: implement minimal transport template for ->eh_timed_out

SCSI midlayer has moved hostt->eh_timed_out to transport template.  As
libata doesn't need full-blown transport support yet, implement
minimal transport for libata.  No transport class or whatsoever, just
empty transport template with ->eh_timed_out hook.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

19 files changed, 14 insertions, 17 deletions

diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index e97ab3e6de4..a1ddbba2cbd 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -207,7 +207,6 @@ static struct scsi_host_template ahci_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 9327b62f97d..a74e23d39ba 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -209,7 +209,6 @@ static struct scsi_host_template piix_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 714b42bad93..64dce00e9c4 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -4653,6 +4653,8 @@ static struct ata_port * ata_host_add(const struct ata_probe_ent *ent,
         if (!host)
                 return NULL;
 
+        host->transportt = &ata_scsi_transport_template;
+
         ap = (struct ata_port *) &host->hostdata[0];
 
         ata_host_init(ap, host, host_set, ent, port_no);
@@ -5084,7 +5086,6 @@ EXPORT_SYMBOL_GPL(ata_busy_sleep);
 EXPORT_SYMBOL_GPL(ata_port_queue_task);
 EXPORT_SYMBOL_GPL(ata_scsi_ioctl);
 EXPORT_SYMBOL_GPL(ata_scsi_queuecmd);
-EXPORT_SYMBOL_GPL(ata_scsi_timed_out);
 EXPORT_SYMBOL_GPL(ata_scsi_error);
 EXPORT_SYMBOL_GPL(ata_scsi_slave_config);
 EXPORT_SYMBOL_GPL(ata_scsi_release);
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index ccedb453697..bd9f2176f79 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -41,6 +41,7 @@
 #include <scsi/scsi_eh.h>
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_request.h>
+#include <scsi/scsi_transport.h>
 #include <linux/libata.h>
 #include <linux/hdreg.h>
 #include <asm/uaccess.h>
@@ -52,6 +53,7 @@
 typedef unsigned int (*ata_xlat_func_t)(struct ata_queued_cmd *qc, const u8 *scsicmd);
 static struct ata_device *
 ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev);
+enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
 
 #define RW_RECOVERY_MPAGE 0x1
 #define RW_RECOVERY_MPAGE_LEN 12
@@ -92,6 +94,14 @@ static const u8 def_control_mpage[CONTROL_MPAGE_LEN] = {
         0, 30   /* extended self test time, see 05-359r1 */
 };
 
+/*
+ * libata transport template.  libata doesn't do real transport stuff.
+ * It just needs the eh_timed_out hook.
+ */
+struct scsi_transport_template ata_scsi_transport_template = {
+        .eh_timed_out           = ata_scsi_timed_out,
+};
+
 
 static void ata_scsi_invalid_field(struct scsi_cmnd *cmd,
                                    void (*done)(struct scsi_cmnd *))
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index f4c48c91b63..65f52beea88 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -57,6 +57,8 @@ extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
 
 
 /* libata-scsi.c */
+extern struct scsi_transport_template ata_scsi_transport_template;
+
 extern void ata_scsi_scan_host(struct ata_port *ap);
 extern int ata_scsi_error(struct Scsi_Host *host);
 extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf,
diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c
index 5f33cc932e7..b3dc5f85ae0 100644
--- a/drivers/scsi/pdc_adma.c
+++ b/drivers/scsi/pdc_adma.c
@@ -143,7 +143,6 @@ static struct scsi_host_template adma_ata_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c
index e561281967d..874c5be0843 100644
--- a/drivers/scsi/sata_mv.c
+++ b/drivers/scsi/sata_mv.c
@@ -378,7 +378,6 @@ static struct scsi_host_template mv_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = MV_USE_Q_DEPTH,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c
index caffadc2e0a..e5b20c6afc1 100644
--- a/drivers/scsi/sata_nv.c
+++ b/drivers/scsi/sata_nv.c
@@ -229,7 +229,6 @@ static struct scsi_host_template nv_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 84cb3940ad8..cc928c68a47 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -111,7 +111,6 @@ static struct scsi_host_template pdc_ata_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index 9602f43a298..9ffe1ef0d20 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -132,7 +132,6 @@ static struct scsi_host_template qs_ata_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index 4f2a67ed39d..3e75d673323 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -146,7 +146,6 @@ static struct scsi_host_template sil_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 9a53a5ed38c..5d01e5ce5ac 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -281,7 +281,6 @@ static struct scsi_host_template sil24_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_sis.c b/drivers/scsi/sata_sis.c
index 7fd45f86de9..acc8439dea2 100644
--- a/drivers/scsi/sata_sis.c
+++ b/drivers/scsi/sata_sis.c
@@ -87,7 +87,6 @@ static struct scsi_host_template sis_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_svw.c b/drivers/scsi/sata_svw.c
index 4aaccd53e73..051e47d975c 100644
--- a/drivers/scsi/sata_svw.c
+++ b/drivers/scsi/sata_svw.c
@@ -288,7 +288,6 @@ static struct scsi_host_template k2_sata_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index 9f8a7681540..ae70f60c7c0 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -182,7 +182,6 @@ static struct scsi_host_template pdc_sata_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_uli.c b/drivers/scsi/sata_uli.c
index 37a487b7d65..8f5025733de 100644
--- a/drivers/scsi/sata_uli.c
+++ b/drivers/scsi/sata_uli.c
@@ -75,7 +75,6 @@ static struct scsi_host_template uli_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c
index ff65a0b0457..791bf652ba6 100644
--- a/drivers/scsi/sata_via.c
+++ b/drivers/scsi/sata_via.c
@@ -94,7 +94,6 @@ static struct scsi_host_template svia_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c
index b574379a7a8..ee75b9b38ae 100644
--- a/drivers/scsi/sata_vsc.c
+++ b/drivers/scsi/sata_vsc.c
@@ -251,7 +251,6 @@ static struct scsi_host_template vsc_sata_sht = {
         .name                   = DRV_NAME,
         .ioctl                  = ata_scsi_ioctl,
         .queuecommand           = ata_scsi_queuecmd,
-        .eh_timed_out           = ata_scsi_timed_out,
         .eh_strategy_handler    = ata_scsi_error,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 239408ecfdd..204c37a55f0 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -508,7 +508,6 @@ extern void ata_host_set_remove(struct ata_host_set *host_set);
 extern int ata_scsi_detect(struct scsi_host_template *sht);
 extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
 extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
-extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
 extern int ata_scsi_error(struct Scsi_Host *host);
 extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
 extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);