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Date: Thu, 11 Dec 2008 18:00:25 +0100
From: Cornelia Huck <cornelia.huck@...ibm.com>
To: Mark McLoughlin <markmc@...hat.com>
Cc: Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org,
virtualization@...ts.linux-foundation.org,
Rusty Russell <rusty@...tcorp.com.au>,
Anthony Liguori <aliguori@...ibm.com>,
Kay Sievers <kay.sievers@...y.org>,
Mark McLoughlin <markmc@...hat.com>,
<linux-s390@...r.kernel.org>,
Heiko Carstens <heiko.carstens@...ibm.com>,
Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: [PATCH 4/4] s390: remove s390_root_dev_*()
(adding cc:s)
On Thu, 11 Dec 2008 16:16:56 +0000,
Mark McLoughlin <markmc@...hat.com> wrote:
> Replace s390_root_dev_register() with root_device_register() etc.
Nice, one more special case generalized :) I'll give it a run.
>
> Signed-off-by: Mark McLoughlin <markmc@...hat.com>
> ---
> arch/s390/include/asm/s390_rdev.h | 15 -----------
> drivers/s390/Makefile | 2 +-
> drivers/s390/block/dcssblk.c | 11 +++----
> drivers/s390/crypto/ap_bus.c | 7 ++---
> drivers/s390/kvm/kvm_virtio.c | 5 +--
> drivers/s390/net/cu3088.c | 7 ++---
> drivers/s390/net/qeth_core_main.c | 7 ++---
> drivers/s390/net/qeth_l2_main.c | 2 -
> drivers/s390/net/qeth_l3_main.c | 2 -
> drivers/s390/s390_rdev.c | 51 -------------------------------------
> net/iucv/iucv.c | 5 +--
> 11 files changed, 19 insertions(+), 95 deletions(-)
> delete mode 100644 arch/s390/include/asm/s390_rdev.h
> delete mode 100644 drivers/s390/s390_rdev.c
>
> diff --git a/arch/s390/include/asm/s390_rdev.h b/arch/s390/include/asm/s390_rdev.h
> deleted file mode 100644
> index 6fa2044..0000000
> --- a/arch/s390/include/asm/s390_rdev.h
> +++ /dev/null
> @@ -1,15 +0,0 @@
> -/*
> - * include/asm-s390/ccwdev.h
> - *
> - * Copyright (C) 2002,2005 IBM Deutschland Entwicklung GmbH, IBM Corporation
> - * Author(s): Cornelia Huck <cornelia.huck@...ibm.com>
> - * Carsten Otte <cotte@...ibm.com>
> - *
> - * Interface for s390 root device
> - */
> -
> -#ifndef _S390_RDEV_H_
> -#define _S390_RDEV_H_
> -extern struct device *s390_root_dev_register(const char *);
> -extern void s390_root_dev_unregister(struct device *);
> -#endif /* _S390_RDEV_H_ */
> diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile
> index 4f4e7cf..d0eae59 100644
> --- a/drivers/s390/Makefile
> +++ b/drivers/s390/Makefile
> @@ -4,7 +4,7 @@
>
> CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w
>
> -obj-y += s390mach.o sysinfo.o s390_rdev.o
> +obj-y += s390mach.o sysinfo.o
> obj-y += cio/ block/ char/ crypto/ net/ scsi/ kvm/
>
> drivers-y += drivers/s390/built-in.o
> diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
> index 63f26a1..20fca50 100644
> --- a/drivers/s390/block/dcssblk.c
> +++ b/drivers/s390/block/dcssblk.c
> @@ -15,7 +15,6 @@
> #include <asm/io.h>
> #include <linux/completion.h>
> #include <linux/interrupt.h>
> -#include <asm/s390_rdev.h>
>
> //#define DCSSBLK_DEBUG /* Debug messages on/off */
> #define DCSSBLK_NAME "dcssblk"
> @@ -951,7 +950,7 @@ dcssblk_check_params(void)
> static void __exit
> dcssblk_exit(void)
> {
> - s390_root_dev_unregister(dcssblk_root_dev);
> + root_device_unregister(dcssblk_root_dev);
> unregister_blkdev(dcssblk_major, DCSSBLK_NAME);
> }
>
> @@ -960,22 +959,22 @@ dcssblk_init(void)
> {
> int rc;
>
> - dcssblk_root_dev = s390_root_dev_register("dcssblk");
> + dcssblk_root_dev = root_device_register("dcssblk");
> if (IS_ERR(dcssblk_root_dev))
> return PTR_ERR(dcssblk_root_dev);
> rc = device_create_file(dcssblk_root_dev, &dev_attr_add);
> if (rc) {
> - s390_root_dev_unregister(dcssblk_root_dev);
> + root_device_unregister(dcssblk_root_dev);
> return rc;
> }
> rc = device_create_file(dcssblk_root_dev, &dev_attr_remove);
> if (rc) {
> - s390_root_dev_unregister(dcssblk_root_dev);
> + root_device_unregister(dcssblk_root_dev);
> return rc;
> }
> rc = register_blkdev(0, DCSSBLK_NAME);
> if (rc < 0) {
> - s390_root_dev_unregister(dcssblk_root_dev);
> + root_device_unregister(dcssblk_root_dev);
> return rc;
> }
> dcssblk_major = rc;
> diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
> index e3fe683..0689c22 100644
> --- a/drivers/s390/crypto/ap_bus.c
> +++ b/drivers/s390/crypto/ap_bus.c
> @@ -32,7 +32,6 @@
> #include <linux/notifier.h>
> #include <linux/kthread.h>
> #include <linux/mutex.h>
> -#include <asm/s390_rdev.h>
> #include <asm/reset.h>
> #include <linux/hrtimer.h>
> #include <linux/ktime.h>
> @@ -1358,7 +1357,7 @@ int __init ap_module_init(void)
> }
>
> /* Create /sys/devices/ap. */
> - ap_root_device = s390_root_dev_register("ap");
> + ap_root_device = root_device_register("ap");
> rc = IS_ERR(ap_root_device) ? PTR_ERR(ap_root_device) : 0;
> if (rc)
> goto out_bus;
> @@ -1401,7 +1400,7 @@ out_work:
> hrtimer_cancel(&ap_poll_timer);
> destroy_workqueue(ap_work_queue);
> out_root:
> - s390_root_dev_unregister(ap_root_device);
> + root_device_unregister(ap_root_device);
> out_bus:
> while (i--)
> bus_remove_file(&ap_bus_type, ap_bus_attrs[i]);
> @@ -1432,7 +1431,7 @@ void ap_module_exit(void)
> hrtimer_cancel(&ap_poll_timer);
> destroy_workqueue(ap_work_queue);
> tasklet_kill(&ap_tasklet);
> - s390_root_dev_unregister(ap_root_device);
> + root_device_unregister(ap_root_device);
> while ((dev = bus_find_device(&ap_bus_type, NULL, NULL,
> __ap_match_all)))
> {
> diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
> index c79cf05..db61252 100644
> --- a/drivers/s390/kvm/kvm_virtio.c
> +++ b/drivers/s390/kvm/kvm_virtio.c
> @@ -24,7 +24,6 @@
> #include <asm/kvm_virtio.h>
> #include <asm/setup.h>
> #include <asm/s390_ext.h>
> -#include <asm/s390_rdev.h>
>
> #define VIRTIO_SUBCODE_64 0x0D00
>
> @@ -335,7 +334,7 @@ static int __init kvm_devices_init(void)
> if (!MACHINE_IS_KVM)
> return -ENODEV;
>
> - kvm_root = s390_root_dev_register("kvm_s390");
> + kvm_root = root_device_register("kvm_s390");
> if (IS_ERR(kvm_root)) {
> rc = PTR_ERR(kvm_root);
> printk(KERN_ERR "Could not register kvm_s390 root device");
> @@ -344,7 +343,7 @@ static int __init kvm_devices_init(void)
>
> rc = vmem_add_mapping(real_memory_size, PAGE_SIZE);
> if (rc) {
> - s390_root_dev_unregister(kvm_root);
> + root_device_unregister(kvm_root);
> return rc;
> }
>
> diff --git a/drivers/s390/net/cu3088.c b/drivers/s390/net/cu3088.c
> index f4a3237..4838345 100644
> --- a/drivers/s390/net/cu3088.c
> +++ b/drivers/s390/net/cu3088.c
> @@ -25,7 +25,6 @@
> #include <linux/module.h>
> #include <linux/err.h>
>
> -#include <asm/s390_rdev.h>
> #include <asm/ccwdev.h>
> #include <asm/ccwgroup.h>
>
> @@ -120,12 +119,12 @@ cu3088_init (void)
> {
> int rc;
>
> - cu3088_root_dev = s390_root_dev_register("cu3088");
> + cu3088_root_dev = root_device_register("cu3088");
> if (IS_ERR(cu3088_root_dev))
> return PTR_ERR(cu3088_root_dev);
> rc = ccw_driver_register(&cu3088_driver);
> if (rc)
> - s390_root_dev_unregister(cu3088_root_dev);
> + root_device_unregister(cu3088_root_dev);
>
> return rc;
> }
> @@ -134,7 +133,7 @@ static void __exit
> cu3088_exit (void)
> {
> ccw_driver_unregister(&cu3088_driver);
> - s390_root_dev_unregister(cu3088_root_dev);
> + root_device_unregister(cu3088_root_dev);
> }
>
> MODULE_DEVICE_TABLE(ccw,cu3088_ids);
> diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
> index 52d2659..ffeb47b 100644
> --- a/drivers/s390/net/qeth_core_main.c
> +++ b/drivers/s390/net/qeth_core_main.c
> @@ -21,7 +21,6 @@
>
> #include <asm/ebcdic.h>
> #include <asm/io.h>
> -#include <asm/s390_rdev.h>
>
> #include "qeth_core.h"
> #include "qeth_core_offl.h"
> @@ -4465,7 +4464,7 @@ static int __init qeth_core_init(void)
> &driver_attr_group);
> if (rc)
> goto driver_err;
> - qeth_core_root_dev = s390_root_dev_register("qeth");
> + qeth_core_root_dev = root_device_register("qeth");
> rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
> if (rc)
> goto register_err;
> @@ -4479,7 +4478,7 @@ static int __init qeth_core_init(void)
>
> return 0;
> slab_err:
> - s390_root_dev_unregister(qeth_core_root_dev);
> + root_device_unregister(qeth_core_root_dev);
> register_err:
> driver_remove_file(&qeth_core_ccwgroup_driver.driver,
> &driver_attr_group);
> @@ -4496,7 +4495,7 @@ out_err:
>
> static void __exit qeth_core_exit(void)
> {
> - s390_root_dev_unregister(qeth_core_root_dev);
> + root_device_unregister(qeth_core_root_dev);
> driver_remove_file(&qeth_core_ccwgroup_driver.driver,
> &driver_attr_group);
> ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
> diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
> index 1b1e803..33c8fe2 100644
> --- a/drivers/s390/net/qeth_l2_main.c
> +++ b/drivers/s390/net/qeth_l2_main.c
> @@ -17,8 +17,6 @@
> #include <linux/mii.h>
> #include <linux/ip.h>
>
> -#include <asm/s390_rdev.h>
> -
> #include "qeth_core.h"
> #include "qeth_core_offl.h"
>
> diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
> index ed59fed..5dd2210 100644
> --- a/drivers/s390/net/qeth_l3_main.c
> +++ b/drivers/s390/net/qeth_l3_main.c
> @@ -23,8 +23,6 @@
> #include <net/ip.h>
> #include <net/arp.h>
>
> -#include <asm/s390_rdev.h>
> -
> #include "qeth_l3.h"
> #include "qeth_core_offl.h"
>
> diff --git a/drivers/s390/s390_rdev.c b/drivers/s390/s390_rdev.c
> deleted file mode 100644
> index 64371c0..0000000
> --- a/drivers/s390/s390_rdev.c
> +++ /dev/null
> @@ -1,51 +0,0 @@
> -/*
> - * drivers/s390/s390_rdev.c
> - * s390 root device
> - *
> - * Copyright (C) 2002, 2005 IBM Deutschland Entwicklung GmbH,
> - * IBM Corporation
> - * Author(s): Cornelia Huck (cornelia.huck@...ibm.com)
> - * Carsten Otte (cotte@...ibm.com)
> - */
> -
> -#include <linux/slab.h>
> -#include <linux/err.h>
> -#include <linux/device.h>
> -#include <asm/s390_rdev.h>
> -
> -static void
> -s390_root_dev_release(struct device *dev)
> -{
> - kfree(dev);
> -}
> -
> -struct device *
> -s390_root_dev_register(const char *name)
> -{
> - struct device *dev;
> - int ret;
> -
> - if (!strlen(name))
> - return ERR_PTR(-EINVAL);
> - dev = kzalloc(sizeof(struct device), GFP_KERNEL);
> - if (!dev)
> - return ERR_PTR(-ENOMEM);
> - dev_set_name(dev, name);
> - dev->release = s390_root_dev_release;
> - ret = device_register(dev);
> - if (ret) {
> - kfree(dev);
> - return ERR_PTR(ret);
> - }
> - return dev;
> -}
> -
> -void
> -s390_root_dev_unregister(struct device *dev)
> -{
> - if (dev)
> - device_unregister(dev);
> -}
> -
> -EXPORT_SYMBOL(s390_root_dev_register);
> -EXPORT_SYMBOL(s390_root_dev_unregister);
> diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
> index d7b54b5..6314e1b 100644
> --- a/net/iucv/iucv.c
> +++ b/net/iucv/iucv.c
> @@ -47,7 +47,6 @@
> #include <asm/ebcdic.h>
> #include <asm/io.h>
> #include <asm/s390_ext.h>
> -#include <asm/s390_rdev.h>
> #include <asm/smp.h>
>
> /*
> @@ -1609,7 +1608,7 @@ static int __init iucv_init(void)
> rc = register_external_interrupt(0x4000, iucv_external_interrupt);
> if (rc)
> goto out;
> - iucv_root = s390_root_dev_register("iucv");
> + iucv_root = root_device_register("iucv");
> if (IS_ERR(iucv_root)) {
> rc = PTR_ERR(iucv_root);
> goto out_int;
> @@ -1653,7 +1652,7 @@ out_free:
> kfree(iucv_irq_data[cpu]);
> iucv_irq_data[cpu] = NULL;
> }
> - s390_root_dev_unregister(iucv_root);
> + root_device_unregister(iucv_root);
> out_int:
> unregister_external_interrupt(0x4000, iucv_external_interrupt);
> out:
> --
> 1.5.4.3
>
--
Cornelia Huck
Linux for zSeries Developer
Tel.: +49-7031-16-4837, Mail: cornelia.huck@...ibm.com
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