diff options
author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-07-13 21:27:25 (GMT) |
---|---|---|
committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-07-23 02:00:22 (GMT) |
commit | 7342798d0ab850a630877a362bc5a4f033100f37 (patch) | |
tree | e26c9ce3fabddb86b440a0b5ccf1edb0905a8017 /drivers/pci/hotplug | |
parent | bbd34fcdd1b201e996235731a7c98fd5197d9e51 (diff) | |
download | linux-fsl-qoriq-7342798d0ab850a630877a362bc5a4f033100f37.tar.xz |
ACPI / hotplug / PCI: Drop sun field from struct acpiphp_slot
If the slot unique number is passed as an additional argument to
acpiphp_register_hotplug_slot(), the 'sun' field in struct
acpiphp_slot is only used by ibm_[s|g]et_attention_status(),
but then it's more efficient to store it in struct slot.
Thus move the 'sun' field from struct acpiphp_slot to struct slot
changing its data type to unsigned int in the process, and redefine
acpiphp_register_hotplug_slot() to take the slot number as separate
argument.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/pci/hotplug')
-rw-r--r-- | drivers/pci/hotplug/acpiphp.h | 5 | ||||
-rw-r--r-- | drivers/pci/hotplug/acpiphp_core.c | 6 | ||||
-rw-r--r-- | drivers/pci/hotplug/acpiphp_glue.c | 7 | ||||
-rw-r--r-- | drivers/pci/hotplug/acpiphp_ibm.c | 2 |
4 files changed, 10 insertions, 10 deletions
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index 76a1c97..4f10aec 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h @@ -60,6 +60,7 @@ struct slot { struct hotplug_slot *hotplug_slot; struct acpiphp_slot *acpi_slot; struct hotplug_slot_info info; + unsigned int sun; /* ACPI _SUN (Slot User Number) value */ }; static inline const char *slot_name(struct slot *slot) @@ -106,8 +107,6 @@ struct acpiphp_slot { struct mutex crit_sect; u8 device; /* pci device# */ - - unsigned long long sun; /* ACPI _SUN (slot unique number) */ u32 flags; /* see below */ }; @@ -179,7 +178,7 @@ struct acpiphp_attention_info /* acpiphp_core.c */ int acpiphp_register_attention(struct acpiphp_attention_info*info); int acpiphp_unregister_attention(struct acpiphp_attention_info *info); -int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot); +int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot, unsigned int sun); void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot); /* acpiphp_glue.c */ diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c index ca81279..1798740 100644 --- a/drivers/pci/hotplug/acpiphp_core.c +++ b/drivers/pci/hotplug/acpiphp_core.c @@ -290,7 +290,8 @@ static void release_slot(struct hotplug_slot *hotplug_slot) } /* callback routine to initialize 'struct slot' for each slot */ -int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot) +int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot, + unsigned int sun) { struct slot *slot; int retval = -ENOMEM; @@ -317,7 +318,8 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot) slot->hotplug_slot->info->adapter_status = acpiphp_get_adapter_status(slot->acpi_slot); acpiphp_slot->slot = slot; - snprintf(name, SLOT_NAME_SIZE, "%llu", slot->acpi_slot->sun); + slot->sun = sun; + snprintf(name, SLOT_NAME_SIZE, "%u", sun); retval = pci_hp_register(slot->hotplug_slot, acpiphp_slot->bridge->pci_bus, diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index b306e99..a251071 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -352,16 +352,15 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data, if (ACPI_FAILURE(status)) sun = bridge->nr_slots; - slot->sun = sun; dbg("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n", - slot->sun, pci_domain_nr(pbus), pbus->number, device); + sun, pci_domain_nr(pbus), pbus->number, device); - retval = acpiphp_register_hotplug_slot(slot); + retval = acpiphp_register_hotplug_slot(slot, sun); if (retval) { bridge->nr_slots--; if (retval == -EBUSY) warn("Slot %llu already registered by another " - "hotplug driver\n", slot->sun); + "hotplug driver\n", sun); else warn("acpiphp_register_hotplug_slot failed " "(err code = 0x%x)\n", retval); diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c index c35e8ad..8d45f6d 100644 --- a/drivers/pci/hotplug/acpiphp_ibm.c +++ b/drivers/pci/hotplug/acpiphp_ibm.c @@ -66,7 +66,7 @@ do { \ #define IBM_HARDWARE_ID1 "IBM37D0" #define IBM_HARDWARE_ID2 "IBM37D4" -#define hpslot_to_sun(A) (((struct slot *)((A)->private))->acpi_slot->sun) +#define hpslot_to_sun(A) (((struct slot *)((A)->private))->sun) /* union apci_descriptor - allows access to the * various device descriptors that are embedded in the |