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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 17:54:03 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 17:54:03 -0800
commit81ec44a6c69342fec1b1140c60a604027e429f69 (patch)
treeee6bec8a94ef28e111bf766cf4b7a9366cb4f7c1 /drivers/pci
parent48a732dfaa77a4dfec803aa8f248373998704f76 (diff)
parente80cfc31d872b6b85b8966bce6ba80bee401a7dd (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 update from Martin Schwidefsky: "The most prominent change in this patch set is the software dirty bit patch for s390. It removes __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY and the page_test_and_clear_dirty primitive which makes the common memory management code a bit less obscure. Heiko fixed most of the PCI related fallout, more often than not missing GENERIC_HARDIRQS dependencies. Notable is one of the 3270 patches which adds an export to tty_io to be able to resize a tty. The rest is the usual bunch of cleanups and bug fixes." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits) s390/module: Add missing R_390_NONE relocation type drivers/gpio: add missing GENERIC_HARDIRQ dependency drivers/input: add couple of missing GENERIC_HARDIRQS dependencies s390/cleanup: rename SPP to LPP s390/mm: implement software dirty bits s390/mm: Fix crst upgrade of mmap with MAP_FIXED s390/linker skript: discard exit.data at runtime drivers/media: add missing GENERIC_HARDIRQS dependency s390/bpf,jit: add vlan tag support drivers/net,AT91RM9200: add missing GENERIC_HARDIRQS dependency iucv: fix kernel panic at reboot s390/Kconfig: sort list of arch selected config options phylib: remove !S390 dependeny from Kconfig uio: remove !S390 dependency from Kconfig dasd: fix sysfs cleanup in dasd_generic_remove s390/pci: fix hotplug module init s390/pci: cleanup clp page allocation s390/pci: cleanup clp inline assembly s390/perf: cpum_cf: fallback to software sampling events s390/mm: provide PAGE_SHARED define ...
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/hotplug/s390_pci_hpc.c60
1 files changed, 26 insertions, 34 deletions
diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c
index dee68e0698e..7db249a2501 100644
--- a/drivers/pci/hotplug/s390_pci_hpc.c
+++ b/drivers/pci/hotplug/s390_pci_hpc.c
@@ -172,25 +172,6 @@ error:
return -ENOMEM;
}
-static int __init init_pci_slots(void)
-{
- struct zpci_dev *zdev;
- int device = 0;
-
- /*
- * Create a structure for each slot, and register that slot
- * with the pci_hotplug subsystem.
- */
- mutex_lock(&zpci_list_lock);
- list_for_each_entry(zdev, &zpci_list, entry) {
- init_pci_slot(zdev);
- device++;
- }
-
- mutex_unlock(&zpci_list_lock);
- return (device) ? 0 : -ENODEV;
-}
-
static void exit_pci_slot(struct zpci_dev *zdev)
{
struct list_head *tmp, *n;
@@ -205,6 +186,26 @@ static void exit_pci_slot(struct zpci_dev *zdev)
}
}
+static struct pci_hp_callback_ops hp_ops = {
+ .create_slot = init_pci_slot,
+ .remove_slot = exit_pci_slot,
+};
+
+static void __init init_pci_slots(void)
+{
+ struct zpci_dev *zdev;
+
+ /*
+ * Create a structure for each slot, and register that slot
+ * with the pci_hotplug subsystem.
+ */
+ mutex_lock(&zpci_list_lock);
+ list_for_each_entry(zdev, &zpci_list, entry) {
+ init_pci_slot(zdev);
+ }
+ mutex_unlock(&zpci_list_lock);
+}
+
static void __exit exit_pci_slots(void)
{
struct list_head *tmp, *n;
@@ -224,28 +225,19 @@ static void __exit exit_pci_slots(void)
static int __init pci_hotplug_s390_init(void)
{
- /*
- * Do specific initialization stuff for your driver here
- * like initializing your controller hardware (if any) and
- * determining the number of slots you have in the system
- * right now.
- */
-
- if (!pci_probe)
+ if (!s390_pci_probe)
return -EOPNOTSUPP;
- /* register callbacks for slot handling from arch code */
- mutex_lock(&zpci_list_lock);
- hotplug_ops.create_slot = init_pci_slot;
- hotplug_ops.remove_slot = exit_pci_slot;
- mutex_unlock(&zpci_list_lock);
- pr_info("registered hotplug slot callbacks\n");
- return init_pci_slots();
+ zpci_register_hp_ops(&hp_ops);
+ init_pci_slots();
+
+ return 0;
}
static void __exit pci_hotplug_s390_exit(void)
{
exit_pci_slots();
+ zpci_deregister_hp_ops();
}
module_init(pci_hotplug_s390_init);