[PATCH 0/7] powerpc: remove the legacy iSeries platform specific drivers

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13 messages, 5 authors, 2012-03-08 · open the first message on its own page

[PATCH 0/7] powerpc: remove the legacy iSeries platform specific drivers

From: Stephen Rothwell <hidden>
Date: 2012-03-08 04:44:12

Hi all,

This series of patches removes all the legacy iSeries platform specific
drivers (and the iSeries specific part of one).  The legacy iSeries
platform main code has already bee removed along with CONFIG_PPC_ISERIES,
so none of this code is selectable or needed any more.

It would probably be easiest if all these patches were merged via the
powerpc tree to eliminate any dependencies between them.  Their impact on
generic code is very small.

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

 arch/powerpc/include/asm/iseries/hv_call_event.h |  201 ---
 arch/powerpc/include/asm/iseries/hv_lp_event.h   |  162 --
 arch/powerpc/include/asm/iseries/iommu.h         |   37 -
 arch/powerpc/include/asm/iseries/vio.h           |  265 ----
 arch/powerpc/kernel/vio.c                        |   18 +-
 drivers/base/driver.c                            |   30 -
 drivers/block/viodasd.c                          |  809 ----------
 drivers/cdrom/viocd.c                            |  739 ----------
 drivers/char/viotape.c                           | 1041 -------------
 drivers/net/ethernet/ibm/Kconfig                 |    4 -
 drivers/net/ethernet/ibm/Makefile                |    1 -
 drivers/net/ethernet/ibm/iseries_veth.c          | 1710 ----------------------
 drivers/scsi/Kconfig                             |    3 +-
 drivers/scsi/ibmvscsi/Makefile                   |    1 -
 drivers/scsi/ibmvscsi/ibmvscsi.c                 |   12 +-
 drivers/scsi/ibmvscsi/ibmvscsi.h                 |    1 -
 drivers/scsi/ibmvscsi/iseries_vscsi.c            |  173 ---
 drivers/tty/hvc/Kconfig                          |   10 -
 drivers/tty/hvc/Makefile                         |    1 -
 drivers/tty/hvc/hvc_iseries.c                    |  599 --------
 drivers/tty/serial/Kconfig                       |    2 +-
 include/linux/device.h                           |    4 -
 22 files changed, 5 insertions(+), 5818 deletions(-)

[PATCH 1/7] powerpc: Remove some of the legacy iSeries specifi device drivers

From: Stephen Rothwell <hidden>
Date: 2012-03-08 04:43:41

These drivers are specific to the PowerPC legacy iSeries platform and
their Kconfig is specified in arch/powerpc.  Legacy iSeries is being
removed, so these drivers can no longer be selected.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stephen Rothwell <redacted>
---
 drivers/block/viodasd.c |  809 ------------------------------------
 drivers/cdrom/viocd.c   |  739 ---------------------------------
 drivers/char/viotape.c  | 1041 -----------------------------------------------
 3 files changed, 0 insertions(+), 2589 deletions(-)
 delete mode 100644 drivers/block/viodasd.c
 delete mode 100644 drivers/cdrom/viocd.c
 delete mode 100644 drivers/char/viotape.c
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
deleted file mode 100644
index 9a5b2a2..0000000
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
deleted file mode 100644
index 7878da8..0000000
diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c
deleted file mode 100644
index ad6e64a..0000000
-- 
1.7.9.1

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

[PATCH 2/7] net: powerpc: remove the legacy iSeries ethernet driver

From: Stephen Rothwell <hidden>
Date: 2012-03-08 04:44:16

This driver is specific to the PowerPC legcay iSeries platform which is
being removed.

Cc: David Miller <davem@davemloft.net>
Cc: <redacted>
Signed-off-by: Stephen Rothwell <redacted>
---
 drivers/net/ethernet/ibm/Kconfig        |    4 -
 drivers/net/ethernet/ibm/Makefile       |    1 -
 drivers/net/ethernet/ibm/iseries_veth.c | 1710 -------------------------------
 3 files changed, 0 insertions(+), 1715 deletions(-)
 delete mode 100644 drivers/net/ethernet/ibm/iseries_veth.c
diff --git a/drivers/net/ethernet/ibm/Kconfig b/drivers/net/ethernet/ibm/Kconfig
index 9e16f3f..b9773d2 100644
--- a/drivers/net/ethernet/ibm/Kconfig
+++ b/drivers/net/ethernet/ibm/Kconfig
@@ -29,10 +29,6 @@ config IBMVETH
 	  To compile this driver as a module, choose M here. The module will
 	  be called ibmveth.
 
-config ISERIES_VETH
-	tristate "iSeries Virtual Ethernet driver support"
-	depends on PPC_ISERIES
-
 source "drivers/net/ethernet/ibm/emac/Kconfig"
 
 config EHEA
diff --git a/drivers/net/ethernet/ibm/Makefile b/drivers/net/ethernet/ibm/Makefile
index 5a7d4e9..2f04e71 100644
--- a/drivers/net/ethernet/ibm/Makefile
+++ b/drivers/net/ethernet/ibm/Makefile
@@ -3,6 +3,5 @@
 #
 
 obj-$(CONFIG_IBMVETH) += ibmveth.o
-obj-$(CONFIG_ISERIES_VETH) += iseries_veth.o
 obj-$(CONFIG_IBM_EMAC) += emac/
 obj-$(CONFIG_EHEA) += ehea/
diff --git a/drivers/net/ethernet/ibm/iseries_veth.c b/drivers/net/ethernet/ibm/iseries_veth.c
deleted file mode 100644
index acc31af..0000000
-- 
1.7.9.1

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

[PATCH 3/7] [SCSI] powerpc: remove the legacy iSeries part of ibmvscsi

From: Stephen Rothwell <hidden>
Date: 2012-03-08 04:44:19

The PowerPC legacy iSeries platform is being removed and this code is
no longer selectable.  There is more clean up that can be done, but this
just gets the old code out of the way.

Cc: "James E.J. Bottomley" <redacted>
Cc: Brian King <redacted>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Stephen Rothwell <redacted>
---
 drivers/scsi/Kconfig                  |    3 +-
 drivers/scsi/ibmvscsi/Makefile        |    1 -
 drivers/scsi/ibmvscsi/ibmvscsi.c      |   12 +--
 drivers/scsi/ibmvscsi/ibmvscsi.h      |    1 -
 drivers/scsi/ibmvscsi/iseries_vscsi.c |  173 ---------------------------------
 5 files changed, 3 insertions(+), 187 deletions(-)
 delete mode 100644 drivers/scsi/ibmvscsi/iseries_vscsi.c
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 16570aa..e38d843 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -967,9 +967,8 @@ config SCSI_IPS
 
 config SCSI_IBMVSCSI
 	tristate "IBM Virtual SCSI support"
-	depends on PPC_PSERIES || PPC_ISERIES
+	depends on PPC_PSERIES
 	select SCSI_SRP_ATTRS
-	select VIOPATH if PPC_ISERIES
 	help
 	  This is the IBM POWER Virtual SCSI Client
 
diff --git a/drivers/scsi/ibmvscsi/Makefile b/drivers/scsi/ibmvscsi/Makefile
index a423d96..ff5b5c5 100644
--- a/drivers/scsi/ibmvscsi/Makefile
+++ b/drivers/scsi/ibmvscsi/Makefile
@@ -1,7 +1,6 @@
 obj-$(CONFIG_SCSI_IBMVSCSI)	+= ibmvscsic.o
 
 ibmvscsic-y			+= ibmvscsi.o
-ibmvscsic-$(CONFIG_PPC_ISERIES)	+= iseries_vscsi.o 
 ibmvscsic-$(CONFIG_PPC_PSERIES)	+= rpa_vscsi.o 
 
 obj-$(CONFIG_SCSI_IBMVSCSIS)	+= ibmvstgt.o
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 3d391dc..e984951 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -55,13 +55,7 @@
  * and sends a CRQ message back to inform the client that the request has
  * completed.
  *
- * Note that some of the underlying infrastructure is different between
- * machines conforming to the "RS/6000 Platform Architecture" (RPA) and
- * the older iSeries hypervisor models.  To support both, some low level
- * routines have been broken out into rpa_vscsi.c and iseries_vscsi.c.
- * The Makefile should pick one, not two, not zero, of these.
- *
- * TODO: This is currently pretty tied to the IBM i/pSeries hypervisor
+ * TODO: This is currently pretty tied to the IBM pSeries hypervisor
  * interfaces.  It would be really nice to abstract this above an RDMA
  * layer.
  */
@@ -2085,9 +2079,7 @@ int __init ibmvscsi_module_init(void)
 	driver_template.can_queue = max_requests;
 	max_events = max_requests + 2;
 
-	if (firmware_has_feature(FW_FEATURE_ISERIES))
-		ibmvscsi_ops = &iseriesvscsi_ops;
-	else if (firmware_has_feature(FW_FEATURE_VIO))
+	if (firmware_has_feature(FW_FEATURE_VIO))
 		ibmvscsi_ops = &rpavscsi_ops;
 	else
 		return -ENODEV;
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h
index 02197a2..c503e17 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.h
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.h
@@ -127,7 +127,6 @@ struct ibmvscsi_ops {
 	int (*resume) (struct ibmvscsi_host_data *hostdata);
 };
 
-extern struct ibmvscsi_ops iseriesvscsi_ops;
 extern struct ibmvscsi_ops rpavscsi_ops;
 
 #endif				/* IBMVSCSI_H */
diff --git a/drivers/scsi/ibmvscsi/iseries_vscsi.c b/drivers/scsi/ibmvscsi/iseries_vscsi.c
deleted file mode 100644
index f477645..0000000
-- 
1.7.9.1

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

[PATCH 5/7] tty: powerpc: remove SERIAL_ICOM dependency on PPC_ISERIES

From: Stephen Rothwell <hidden>
Date: 2012-03-08 04:44:22

The PowerPC legacy iSeries platform is being removed so this is no
longer selectable.

Cc: Alan Cox <redacted>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Stephen Rothwell <redacted>
---
 drivers/tty/serial/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 2de9924..59e7983 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -853,7 +853,7 @@ config SERIAL_MPC52xx_CONSOLE_BAUD
 
 config SERIAL_ICOM
 	tristate "IBM Multiport Serial Adapter"
-	depends on PCI && (PPC_ISERIES || PPC_PSERIES)
+	depends on PCI && PPC_PSERIES
 	select SERIAL_CORE
 	select FW_LOADER
 	help
-- 
1.7.9.1

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

[PATCH 4/7] tty: powerpc: remove hvc_iseries

From: Stephen Rothwell <hidden>
Date: 2012-03-08 04:44:24

The PowerPC legacy iSeries platform is being removed, so this code is no
longer needed.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Rothwell <redacted>
---
 drivers/tty/hvc/Kconfig       |   10 -
 drivers/tty/hvc/Makefile      |    1 -
 drivers/tty/hvc/hvc_iseries.c |  599 -----------------------------------------
 3 files changed, 0 insertions(+), 610 deletions(-)
 delete mode 100644 drivers/tty/hvc/hvc_iseries.c
diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig
index 4222035..8ea7f07 100644
--- a/drivers/tty/hvc/Kconfig
+++ b/drivers/tty/hvc/Kconfig
@@ -24,16 +24,6 @@ config HVC_OLD_HVSI
 	depends on HVC_CONSOLE
 	default n
 
-config HVC_ISERIES
-	bool "iSeries Hypervisor Virtual Console support"
-	depends on PPC_ISERIES
-	default y
-	select HVC_DRIVER
-	select HVC_IRQ
-	select VIOPATH
-	help
-	  iSeries machines support a hypervisor virtual console.
-
 config HVC_OPAL
 	bool "OPAL Console support"
 	depends on PPC_POWERNV
diff --git a/drivers/tty/hvc/Makefile b/drivers/tty/hvc/Makefile
index 89abf40b..4ca3723 100644
--- a/drivers/tty/hvc/Makefile
+++ b/drivers/tty/hvc/Makefile
@@ -1,7 +1,6 @@
 obj-$(CONFIG_HVC_CONSOLE)	+= hvc_vio.o hvsi_lib.o
 obj-$(CONFIG_HVC_OPAL)		+= hvc_opal.o hvsi_lib.o
 obj-$(CONFIG_HVC_OLD_HVSI)	+= hvsi.o
-obj-$(CONFIG_HVC_ISERIES)	+= hvc_iseries.o
 obj-$(CONFIG_HVC_RTAS)		+= hvc_rtas.o
 obj-$(CONFIG_HVC_TILE)		+= hvc_tile.o
 obj-$(CONFIG_HVC_DCC)		+= hvc_dcc.o
diff --git a/drivers/tty/hvc/hvc_iseries.c b/drivers/tty/hvc/hvc_iseries.c
deleted file mode 100644
index 3f4a897..0000000
-- 
1.7.9.1

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

[PATCH 6/7] driver-core: remove legacy iSeries hack

From: Stephen Rothwell <hidden>
Date: 2012-03-08 04:44:28

The PowerPC legacy iSeries plateform is being removed along with the
"one looney iseries driver", so this code can now be removed as well.

cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Rothwell <redacted>
---
 drivers/base/driver.c  |   30 ------------------------------
 include/linux/device.h |    4 ----
 2 files changed, 0 insertions(+), 34 deletions(-)
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index b631f7c..db4f54c 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -124,36 +124,6 @@ void driver_remove_file(struct device_driver *drv,
 EXPORT_SYMBOL_GPL(driver_remove_file);
 
 /**
- * driver_add_kobj - add a kobject below the specified driver
- * @drv: requesting device driver
- * @kobj: kobject to add below this driver
- * @fmt: format string that names the kobject
- *
- * You really don't want to do this, this is only here due to one looney
- * iseries driver, go poke those developers if you are annoyed about
- * this...
- */
-int driver_add_kobj(struct device_driver *drv, struct kobject *kobj,
-		    const char *fmt, ...)
-{
-	va_list args;
-	char *name;
-	int ret;
-
-	va_start(args, fmt);
-	name = kvasprintf(GFP_KERNEL, fmt, args);
-	va_end(args);
-
-	if (!name)
-		return -ENOMEM;
-
-	ret = kobject_add(kobj, &drv->p->kobj, "%s", name);
-	kfree(name);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(driver_add_kobj);
-
-/**
  * get_driver - increment driver reference count.
  * @drv: driver.
  */
diff --git a/include/linux/device.h b/include/linux/device.h
index b63fb39..46baa1f 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -264,10 +264,6 @@ extern int __must_check driver_create_file(struct device_driver *driver,
 extern void driver_remove_file(struct device_driver *driver,
 			       const struct driver_attribute *attr);
 
-extern int __must_check driver_add_kobj(struct device_driver *drv,
-					struct kobject *kobj,
-					const char *fmt, ...);
-
 extern int __must_check driver_for_each_device(struct device_driver *drv,
 					       struct device *start,
 					       void *data,
-- 
1.7.9.1

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

[PATCH 7/7] powerpc: clean up vio.c

From: Stephen Rothwell <hidden>
Date: 2012-03-08 04:44:31

This cleans up vio.c after the removal of the legacy iSeries platform.
It also removes some no longer referenced include files.

Signed-off-by: Stephen Rothwell <redacted>
---
 arch/powerpc/include/asm/iseries/hv_call_event.h |  201 ----------------
 arch/powerpc/include/asm/iseries/hv_lp_event.h   |  162 -------------
 arch/powerpc/include/asm/iseries/iommu.h         |   37 ---
 arch/powerpc/include/asm/iseries/vio.h           |  265 ----------------------
 arch/powerpc/kernel/vio.c                        |   18 +--
 5 files changed, 1 insertions(+), 682 deletions(-)
 delete mode 100644 arch/powerpc/include/asm/iseries/hv_call_event.h
 delete mode 100644 arch/powerpc/include/asm/iseries/hv_lp_event.h
 delete mode 100644 arch/powerpc/include/asm/iseries/iommu.h
 delete mode 100644 arch/powerpc/include/asm/iseries/vio.h
diff --git a/arch/powerpc/include/asm/iseries/hv_call_event.h b/arch/powerpc/include/asm/iseries/hv_call_event.h
deleted file mode 100644
index cc029d3..0000000
diff --git a/arch/powerpc/include/asm/iseries/hv_lp_event.h b/arch/powerpc/include/asm/iseries/hv_lp_event.h
deleted file mode 100644
index 8f5da7d..0000000
diff --git a/arch/powerpc/include/asm/iseries/iommu.h b/arch/powerpc/include/asm/iseries/iommu.h
deleted file mode 100644
index 1b9692c..0000000
diff --git a/arch/powerpc/include/asm/iseries/vio.h b/arch/powerpc/include/asm/iseries/vio.h
deleted file mode 100644
index f9ac0d0..0000000
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 8b08629..bca3fc4 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -34,11 +34,6 @@
 #include <asm/abs_addr.h>
 #include <asm/page.h>
 #include <asm/hvcall.h>
-#include <asm/iseries/vio.h>
-#include <asm/iseries/hv_types.h>
-#include <asm/iseries/hv_lp_config.h>
-#include <asm/iseries/hv_call_xm.h>
-#include <asm/iseries/iommu.h>
 
 static struct bus_type vio_bus_type;
 
@@ -1042,7 +1037,6 @@ static void vio_cmo_sysfs_init(void)
 	vio_bus_type.bus_attrs = vio_cmo_bus_attrs;
 }
 #else /* CONFIG_PPC_SMLPAR */
-/* Dummy functions for iSeries platform */
 int vio_cmo_entitlement_update(size_t new_entitlement) { return 0; }
 void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired) {}
 static int vio_cmo_bus_probe(struct vio_dev *viodev) { return 0; }
@@ -1060,9 +1054,6 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
 	struct iommu_table *tbl;
 	unsigned long offset, size;
 
-	if (firmware_has_feature(FW_FEATURE_ISERIES))
-		return vio_build_iommu_table_iseries(dev);
-
 	dma_window = of_get_property(dev->dev.of_node,
 				  "ibm,my-dma-window", NULL);
 	if (!dma_window)
@@ -1195,8 +1186,7 @@ static void __devinit vio_dev_release(struct device *dev)
 {
 	struct iommu_table *tbl = get_iommu_table_base(dev);
 
-	/* iSeries uses a common table for all vio devices */
-	if (!firmware_has_feature(FW_FEATURE_ISERIES) && tbl)
+	if (tbl)
 		iommu_free_table(tbl, dev->of_node ?
 			dev->of_node->full_name : dev_name(dev));
 	of_node_put(dev->of_node);
@@ -1244,12 +1234,6 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 	viodev->name = of_node->name;
 	viodev->type = of_node->type;
 	viodev->unit_address = *unit_address;
-	if (firmware_has_feature(FW_FEATURE_ISERIES)) {
-		unit_address = of_get_property(of_node,
-				"linux,unit_address", NULL);
-		if (unit_address != NULL)
-			viodev->unit_address = *unit_address;
-	}
 	viodev->dev.of_node = of_node_get(of_node);
 
 	if (firmware_has_feature(FW_FEATURE_CMO))
-- 
1.7.9.1

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

Re: [PATCH 2/7] net: powerpc: remove the legacy iSeries ethernet driver

From: David Miller <davem@davemloft.net>
Date: 2012-03-08 06:57:34

From: Stephen Rothwell <redacted>
Date: Thu, 8 Mar 2012 15:33:53 +1100
This driver is specific to the PowerPC legcay iSeries platform which is
being removed.

Cc: David Miller <davem@davemloft.net>
Cc: <redacted>
Signed-off-by: Stephen Rothwell <redacted>
Acked-by: David S. Miller <davem@davemloft.net>

Re: [PATCH 0/7] powerpc: remove the legacy iSeries platform specific drivers

From: David Miller <davem@davemloft.net>
Date: 2012-03-08 06:57:43

From: Stephen Rothwell <redacted>
Date: Thu, 8 Mar 2012 15:28:53 +1100
It would probably be easiest if all these patches were merged via the
powerpc tree to eliminate any dependencies between them.  Their impact on
generic code is very small.
No objections.

Re: [PATCH 0/7] powerpc: remove the legacy iSeries platform specific drivers

From: Jens Axboe <axboe@kernel.dk>
Date: 2012-03-08 10:38:05

On 03/08/2012 05:28 AM, Stephen Rothwell wrote:
It would probably be easiest if all these patches were merged via the
powerpc tree to eliminate any dependencies between them.  Their impact on
generic code is very small.
Go ahead, no point in doing otherwise.

-- 
Jens Axboe

Re: [PATCH 5/7] tty: powerpc: remove SERIAL_ICOM dependency on PPC_ISERIES

From: Alan Cox <hidden>
Date: 2012-03-08 11:05:10

On Thu, 8 Mar 2012 15:39:31 +1100
Stephen Rothwell [off-list ref] wrote:
The PowerPC legacy iSeries platform is being removed so this is no
longer selectable.
Fine by me

Re: [PATCH 0/7] powerpc: remove the legacy iSeries platform specific drivers

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2012-03-08 17:59:49

On Thu, Mar 08, 2012 at 03:28:53PM +1100, Stephen Rothwell wrote:
Hi all,

This series of patches removes all the legacy iSeries platform specific
drivers (and the iSeries specific part of one).  The legacy iSeries
platform main code has already bee removed along with CONFIG_PPC_ISERIES,
so none of this code is selectable or needed any more.

It would probably be easiest if all these patches were merged via the
powerpc tree to eliminate any dependencies between them.  Their impact on
generic code is very small.
No objection from me at all.

greg k-h
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