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-rw-r--r--drivers/pci/hotplug/acpi_pcihp.c3
-rw-r--r--drivers/pci/hotplug/acpiphp_ibm.c2
-rw-r--r--drivers/pci/hotplug/cpci_hotplug_core.c13
-rw-r--r--drivers/pci/hotplug/cpcihp_generic.c28
-rw-r--r--drivers/pci/hotplug/cpcihp_zt5550.c44
-rw-r--r--drivers/pci/hotplug/cpqphp.h2
-rw-r--r--drivers/pci/hotplug/cpqphp_core.c3
-rw-r--r--drivers/pci/hotplug/cpqphp_ctrl.c19
-rw-r--r--drivers/pci/hotplug/cpqphp_nvram.c13
-rw-r--r--drivers/pci/hotplug/ibmphp_core.c19
-rw-r--r--drivers/pci/hotplug/ibmphp_ebda.c3
-rw-r--r--drivers/pci/hotplug/ibmphp_hpc.c3
-rw-r--r--drivers/pci/hotplug/ibmphp_pci.c6
-rw-r--r--drivers/pci/hotplug/ibmphp_res.c45
-rw-r--r--drivers/pci/hotplug/shpchp_ctrl.c14
-rw-r--r--drivers/pci/hotplug/shpchp_hpc.c5
-rw-r--r--drivers/pci/pci-sysfs.c2
-rw-r--r--drivers/pci/pci.c13
-rw-r--r--drivers/pci/quirks.c68
-rw-r--r--drivers/pci/search.c34
-rw-r--r--include/linux/pci.h16
21 files changed, 149 insertions, 206 deletions
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 2ac9a28d7fa1..876ccc620440 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -182,7 +182,8 @@ int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle)
{
acpi_handle bridge_handle, parent_handle;
- if (!(bridge_handle = acpi_pci_get_bridge_handle(pbus)))
+ bridge_handle = acpi_pci_get_bridge_handle(pbus);
+ if (!bridge_handle)
return 0;
if ((ACPI_FAILURE(acpi_get_parent(handle, &parent_handle))))
return 0;
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 8dcccffd6e21..6ca23998ee8f 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -302,7 +302,7 @@ static int ibm_get_table_from_acpi(char **bufp)
goto read_table_done;
}
- for(size = 0, i = 0; i < package->package.count; i++) {
+ for (size = 0, i = 0; i < package->package.count; i++) {
if (package->package.elements[i].type != ACPI_TYPE_BUFFER) {
pr_err("%s: Invalid APCI element %d\n", __func__, i);
goto read_table_done;
diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c
index e09cf7827d68..a5a7fd8332ac 100644
--- a/drivers/pci/hotplug/cpci_hotplug_core.c
+++ b/drivers/pci/hotplug/cpci_hotplug_core.c
@@ -125,7 +125,8 @@ disable_slot(struct hotplug_slot *hotplug_slot)
/* Unconfigure device */
dbg("%s - unconfiguring slot %s", __func__, slot_name(slot));
- if ((retval = cpci_unconfigure_slot(slot))) {
+ retval = cpci_unconfigure_slot(slot);
+ if (retval) {
err("%s - could not unconfigure slot %s",
__func__, slot_name(slot));
goto disable_error;
@@ -141,9 +142,11 @@ disable_slot(struct hotplug_slot *hotplug_slot)
}
cpci_led_on(slot);
- if (controller->ops->set_power)
- if ((retval = controller->ops->set_power(slot, 0)))
+ if (controller->ops->set_power) {
+ retval = controller->ops->set_power(slot, 0);
+ if (retval)
goto disable_error;
+ }
if (update_adapter_status(slot->hotplug_slot, 0))
warn("failure to update adapter file");
@@ -467,9 +470,9 @@ check_slots(void)
__func__, slot_name(slot), hs_csr);
if (!slot->extracting) {
- if (update_latch_status(slot->hotplug_slot, 0)) {
+ if (update_latch_status(slot->hotplug_slot, 0))
warn("failure to update latch file");
- }
+
slot->extracting = 1;
atomic_inc(&extracting);
}
diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
index 04fcd7811400..66b7bbebe493 100644
--- a/drivers/pci/hotplug/cpcihp_generic.c
+++ b/drivers/pci/hotplug/cpcihp_generic.c
@@ -56,7 +56,7 @@
if (debug) \
printk (KERN_DEBUG "%s: " format "\n", \
MY_NAME , ## arg); \
- } while(0)
+ } while (0)
#define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
#define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME , ## arg)
@@ -82,28 +82,28 @@ static int __init validate_parameters(void)
char *p;
unsigned long tmp;
- if(!bridge) {
+ if (!bridge) {
info("not configured, disabling.");
return -EINVAL;
}
str = bridge;
- if(!*str)
+ if (!*str)
return -EINVAL;
tmp = simple_strtoul(str, &p, 16);
- if(p == str || tmp > 0xff) {
+ if (p == str || tmp > 0xff) {
err("Invalid hotplug bus bridge device bus number");
return -EINVAL;
}
bridge_busnr = (u8) tmp;
dbg("bridge_busnr = 0x%02x", bridge_busnr);
- if(*p != ':') {
+ if (*p != ':') {
err("Invalid hotplug bus bridge device");
return -EINVAL;
}
str = p + 1;
tmp = simple_strtoul(str, &p, 16);
- if(p == str || tmp > 0x1f) {
+ if (p == str || tmp > 0x1f) {
err("Invalid hotplug bus bridge device slot number");
return -EINVAL;
}
@@ -112,18 +112,18 @@ static int __init validate_parameters(void)
dbg("first_slot = 0x%02x", first_slot);
dbg("last_slot = 0x%02x", last_slot);
- if(!(first_slot && last_slot)) {
+ if (!(first_slot && last_slot)) {
err("Need to specify first_slot and last_slot");
return -EINVAL;
}
- if(last_slot < first_slot) {
+ if (last_slot < first_slot) {
err("first_slot must be less than last_slot");
return -EINVAL;
}
dbg("port = 0x%04x", port);
dbg("enum_bit = 0x%02x", enum_bit);
- if(enum_bit > 7) {
+ if (enum_bit > 7) {
err("Invalid #ENUM bit");
return -EINVAL;
}
@@ -151,12 +151,12 @@ static int __init cpcihp_generic_init(void)
return status;
r = request_region(port, 1, "#ENUM hotswap signal register");
- if(!r)
+ if (!r)
return -EBUSY;
dev = pci_get_domain_bus_and_slot(0, bridge_busnr,
PCI_DEVFN(bridge_slot, 0));
- if(!dev || dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) {
+ if (!dev || dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) {
err("Invalid bridge device %s", bridge);
pci_dev_put(dev);
return -EINVAL;
@@ -169,21 +169,21 @@ static int __init cpcihp_generic_init(void)
generic_hpc.ops = &generic_hpc_ops;
status = cpci_hp_register_controller(&generic_hpc);
- if(status != 0) {
+ if (status != 0) {
err("Could not register cPCI hotplug controller");
return -ENODEV;
}
dbg("registered controller");
status = cpci_hp_register_bus(bus, first_slot, last_slot);
- if(status != 0) {
+ if (status != 0) {
err("Could not register cPCI hotplug bus");
goto init_bus_register_error;
}
dbg("registered bus");
status = cpci_hp_start();
- if(status != 0) {
+ if (status != 0) {
err("Could not started cPCI hotplug system");
goto init_start_error;
}
diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
index 6757b3ef7e10..7ecf34e76a61 100644
--- a/drivers/pci/hotplug/cpcihp_zt5550.c
+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
@@ -51,7 +51,7 @@
if (debug) \
printk (KERN_DEBUG "%s: " format "\n", \
MY_NAME , ## arg); \
- } while(0)
+ } while (0)
#define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
#define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME , ## arg)
@@ -82,13 +82,13 @@ static int zt5550_hc_config(struct pci_dev *pdev)
int ret;
/* Since we know that no boards exist with two HC chips, treat it as an error */
- if(hc_dev) {
+ if (hc_dev) {
err("too many host controller devices?");
return -EBUSY;
}
ret = pci_enable_device(pdev);
- if(ret) {
+ if (ret) {
err("cannot enable %s\n", pci_name(pdev));
return ret;
}
@@ -98,7 +98,7 @@ static int zt5550_hc_config(struct pci_dev *pdev)
dbg("pci resource start %llx", (unsigned long long)pci_resource_start(hc_dev, 1));
dbg("pci resource len %llx", (unsigned long long)pci_resource_len(hc_dev, 1));
- if(!request_mem_region(pci_resource_start(hc_dev, 1),
+ if (!request_mem_region(pci_resource_start(hc_dev, 1),
pci_resource_len(hc_dev, 1), MY_NAME)) {
err("cannot reserve MMIO region");
ret = -ENOMEM;
@@ -107,7 +107,7 @@ static int zt5550_hc_config(struct pci_dev *pdev)
hc_registers =
ioremap(pci_resource_start(hc_dev, 1), pci_resource_len(hc_dev, 1));
- if(!hc_registers) {
+ if (!hc_registers) {
err("cannot remap MMIO region %llx @ %llx",
(unsigned long long)pci_resource_len(hc_dev, 1),
(unsigned long long)pci_resource_start(hc_dev, 1));
@@ -146,7 +146,7 @@ exit_disable_device:
static int zt5550_hc_cleanup(void)
{
- if(!hc_dev)
+ if (!hc_dev)
return -ENODEV;
iounmap(hc_registers);
@@ -170,9 +170,9 @@ static int zt5550_hc_check_irq(void *dev_id)
u8 reg;
ret = 0;
- if(dev_id == zt5550_hpc.dev_id) {
+ if (dev_id == zt5550_hpc.dev_id) {
reg = readb(csr_int_status);
- if(reg)
+ if (reg)
ret = 1;
}
return ret;
@@ -182,9 +182,9 @@ static int zt5550_hc_enable_irq(void)
{
u8 reg;
- if(hc_dev == NULL) {
+ if (hc_dev == NULL)
return -ENODEV;
- }
+
reg = readb(csr_int_mask);
reg = reg & ~ENUM_INT_MASK;
writeb(reg, csr_int_mask);
@@ -195,9 +195,8 @@ static int zt5550_hc_disable_irq(void)
{
u8 reg;
- if(hc_dev == NULL) {
+ if (hc_dev == NULL)
return -ENODEV;
- }
reg = readb(csr_int_mask);
reg = reg | ENUM_INT_MASK;
@@ -210,15 +209,15 @@ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id
int status;
status = zt5550_hc_config(pdev);
- if(status != 0) {
+ if (status != 0)
return status;
- }
+
dbg("returned from zt5550_hc_config");
memset(&zt5550_hpc, 0, sizeof (struct cpci_hp_controller));
zt5550_hpc_ops.query_enum = zt5550_hc_query_enum;
zt5550_hpc.ops = &zt5550_hpc_ops;
- if(!poll) {
+ if (!poll) {
zt5550_hpc.irq = hc_dev->irq;
zt5550_hpc.irq_flags = IRQF_SHARED;
zt5550_hpc.dev_id = hc_dev;
@@ -231,15 +230,16 @@ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id
}
status = cpci_hp_register_controller(&zt5550_hpc);
- if(status != 0) {
+ if (status != 0) {
err("could not register cPCI hotplug controller");
goto init_hc_error;
}
dbg("registered controller");
/* Look for first device matching cPCI bus's bridge vendor and device IDs */
- if(!(bus0_dev = pci_get_device(PCI_VENDOR_ID_DEC,
- PCI_DEVICE_ID_DEC_21154, NULL))) {
+ bus0_dev = pci_get_device(PCI_VENDOR_ID_DEC,
+ PCI_DEVICE_ID_DEC_21154, NULL);
+ if (!bus0_dev) {
status = -ENODEV;
goto init_register_error;
}
@@ -247,14 +247,14 @@ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id
pci_dev_put(bus0_dev);
status = cpci_hp_register_bus(bus0, 0x0a, 0x0f);
- if(status != 0) {
+ if (status != 0) {
err("could not register cPCI hotplug bus");
goto init_register_error;
}
dbg("registered bus");
status = cpci_hp_start();
- if(status != 0) {
+ if (status != 0) {
err("could not started cPCI hotplug system");
cpci_hp_unregister_bus(bus0);
goto init_register_error;
@@ -300,11 +300,11 @@ static int __init zt5550_init(void)
info(DRIVER_DESC " version: " DRIVER_VERSION);
r = request_region(ENUM_PORT, 1, "#ENUM hotswap signal register");
- if(!r)
+ if (!r)
return -EBUSY;
rc = pci_register_driver(&zt5550_hc_driver);
- if(rc < 0)
+ if (rc < 0)
release_region(ENUM_PORT, 1);
return rc;
}
diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h
index 0450f405807d..b28b2d2184cd 100644
--- a/drivers/pci/hotplug/cpqphp.h
+++ b/drivers/pci/hotplug/cpqphp.h
@@ -690,7 +690,7 @@ static inline int cpq_get_latch_status(struct controller *ctrl,
status = (readl(ctrl->hpc_reg + INT_INPUT_CLEAR) & (0x01L << hp_slot));
- return(status == 0) ? 1 : 0;
+ return (status == 0) ? 1 : 0;
}
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index 4aaee746df88..a53084ddc118 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -1096,9 +1096,8 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* initialize our threads if they haven't already been started up */
rc = one_time_init();
- if (rc) {
+ if (rc)
goto err_free_bus;
- }
dbg("pdev = %p\n", pdev);
dbg("pci resource start %llx\n", (unsigned long long)pci_resource_start(pdev, 0));
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index bde47fce3248..c5cbefee5236 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -705,9 +705,8 @@ static struct pci_resource *get_max_resource(struct pci_resource **head, u32 siz
if (temp == max) {
*head = max->next;
} else {
- while (temp && temp->next != max) {
+ while (temp && temp->next != max)
temp = temp->next;
- }
if (temp)
temp->next = max->next;
@@ -903,9 +902,8 @@ irqreturn_t cpqhp_ctrl_intr(int IRQ, void *data)
/*
* Check to see if it was our interrupt
*/
- if (!(misc & 0x000C)) {
+ if (!(misc & 0x000C))
return IRQ_NONE;
- }
if (misc & 0x0004) {
/*
@@ -1143,7 +1141,7 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_
/* We don't allow freq/mode changes if we find another adapter running
* in another slot on this controller
*/
- for(slot = ctrl->slot; slot; slot = slot->next) {
+ for (slot = ctrl->slot; slot; slot = slot->next) {
if (slot->device == (hp_slot + ctrl->slot_device_offset))
continue;
if (!slot->hotplug_slot || !slot->hotplug_slot->info)
@@ -1193,7 +1191,7 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_
reg16 = readw(ctrl->hpc_reg + NEXT_CURR_FREQ);
reg16 &= ~0x000F;
- switch(adapter_speed) {
+ switch (adapter_speed) {
case(PCI_SPEED_133MHz_PCIX):
reg = 0x75;
reg16 |= 0xB;
@@ -2006,9 +2004,8 @@ int cpqhp_process_SI(struct controller *ctrl, struct pci_func *func)
/* Check to see if the interlock is closed */
tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR);
- if (tempdword & (0x01 << hp_slot)) {
+ if (tempdword & (0x01 << hp_slot))
return 1;
- }
if (func->is_a_board) {
rc = board_replaced(func, ctrl);
@@ -2070,9 +2067,8 @@ int cpqhp_process_SI(struct controller *ctrl, struct pci_func *func)
}
}
- if (rc) {
+ if (rc)
dbg("%s: rc = %d\n", __func__, rc);
- }
if (p_slot)
update_slot_info(ctrl, p_slot);
@@ -2095,9 +2091,8 @@ int cpqhp_process_SS(struct controller *ctrl, struct pci_func *func)
device = func->device;
func = cpqhp_slot_find(ctrl->bus, device, index++);
p_slot = cpqhp_find_slot(ctrl, device);
- if (p_slot) {
+ if (p_slot)
physical_slot = p_slot->number;
- }
/* Make sure there are no video controllers here */
while (func && !rc) {
diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
index 0968a9bcb345..1e08ff8c229c 100644
--- a/drivers/pci/hotplug/cpqphp_nvram.c
+++ b/drivers/pci/hotplug/cpqphp_nvram.c
@@ -204,9 +204,8 @@ static int load_HRT (void __iomem *rom_start)
u8 temp_byte = 0xFF;
u32 rc;
- if (!check_for_compaq_ROM(rom_start)) {
+ if (!check_for_compaq_ROM(rom_start))
return -ENODEV;
- }
available = 1024;
@@ -250,9 +249,8 @@ static u32 store_HRT (void __iomem *rom_start)
available = 1024;
- if (!check_for_compaq_ROM(rom_start)) {
+ if (!check_for_compaq_ROM(rom_start))
return(1);
- }
buffer = (u32*) evbuffer;
@@ -427,9 +425,9 @@ static u32 store_HRT (void __iomem *rom_start)
void compaq_nvram_init (void __iomem *rom_start)
{
- if (rom_start) {
+ if (rom_start)
compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
- }
+
dbg("int15 entry = %p\n", compaq_int15_entry_point);
/* initialize our int15 lock */
@@ -661,9 +659,8 @@ int compaq_nvram_store (void __iomem *rom_start)
if (evbuffer_init) {
rc = store_HRT(rom_start);
- if (rc) {
+ if (rc)
err(msg_unable_to_save);
- }
}
return rc;
}
diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index f7b8684a7739..3efaf4c38528 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -1023,7 +1023,8 @@ static int enable_slot(struct hotplug_slot *hs)
debug("ENABLING SLOT........\n");
slot_cur = hs->private;
- if ((rc = validate(slot_cur, ENABLE))) {
+ rc = validate(slot_cur, ENABLE);
+ if (rc) {
err("validate function failed\n");
goto error_nopower;
}
@@ -1199,9 +1200,8 @@ int ibmphp_do_disable_slot(struct slot *slot_cur)
debug("DISABLING SLOT...\n");
- if ((slot_cur == NULL) || (slot_cur->ctrl == NULL)) {
+ if ((slot_cur == NULL) || (slot_cur->ctrl == NULL))
return -ENODEV;
- }
flag = slot_cur->flag;
slot_cur->flag = 1;
@@ -1336,17 +1336,20 @@ static int __init ibmphp_init(void)
for (i = 0; i < 16; i++)
irqs[i] = 0;
- if ((rc = ibmphp_access_ebda()))
+ rc = ibmphp_access_ebda();
+ if (rc)
goto error;
debug("after ibmphp_access_ebda()\n");
- if ((rc = ibmphp_rsrc_init()))
+ rc = ibmphp_rsrc_init();
+ if (rc)
goto error;
debug("AFTER Resource & EBDA INITIALIZATIONS\n");
max_slots = get_max_slots();
- if ((rc = ibmphp_register_pci()))
+ rc = ibmphp_register_pci();
+ if (rc)
goto error;
if (init_ops()) {
@@ -1355,9 +1358,9 @@ static int __init ibmphp_init(void)
}
ibmphp_print_test();
- if ((rc = ibmphp_hpc_start_poll_thread())) {
+ rc = ibmphp_hpc_start_poll_thread();
+ if (rc)
goto error;
- }
exit:
return rc;
diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c
index 0f65ac555434..d9b197d5c6b4 100644
--- a/drivers/pci/hotplug/ibmphp_ebda.c
+++ b/drivers/pci/hotplug/ibmphp_ebda.c
@@ -215,9 +215,8 @@ static void __init print_ebda_hpc (void)
debug ("%s - cap of the slot: %x\n", __func__, hpc_ptr->slots[index].slot_cap);
}
- for (index = 0; index < hpc_ptr->bus_count; index++) {
+ for (index = 0; index < hpc_ptr->bus_count; index++)
debug ("%s - bus# of each bus controlled by this ctlr: %x\n", __func__, hpc_ptr->buses[index].bus_num);
- }
debug ("%s - type of hpc: %x\n", __func__, hpc_ptr->ctlr_type);
switch (hpc_ptr->ctlr_type) {
diff --git a/drivers/pci/hotplug/ibmphp_hpc.c b/drivers/pci/hotplug/ibmphp_hpc.c
index a936022956e6..220876715a08 100644
--- a/drivers/pci/hotplug/ibmphp_hpc.c
+++ b/drivers/pci/hotplug/ibmphp_hpc.c
@@ -997,9 +997,8 @@ static int process_changeinstatus (struct slot *pslot, struct slot *poldslot)
rc = ibmphp_do_disable_slot (pslot);
}
- if (update || disable) {
+ if (update || disable)
ibmphp_update_slot_info (pslot);
- }
debug ("%s - Exit rc[%d] disable[%x] update[%x]\n", __func__, rc, disable, update);
diff --git a/drivers/pci/hotplug/ibmphp_pci.c b/drivers/pci/hotplug/ibmphp_pci.c
index 2fd296706ce7..814cea22a9fa 100644
--- a/drivers/pci/hotplug/ibmphp_pci.c
+++ b/drivers/pci/hotplug/ibmphp_pci.c
@@ -145,7 +145,8 @@ int ibmphp_configure_card (struct pci_func *func, u8 slotno)
case PCI_HEADER_TYPE_NORMAL:
debug ("single device case.... vendor id = %x, hdr_type = %x, class = %x\n", vendor_id, hdr_type, class);
assign_alt_irq (cur_func, class_code);
- if ((rc = configure_device (cur_func)) < 0) {
+ rc = configure_device(cur_func);
+ if (rc < 0) {
/* We need to do this in case some other BARs were properly inserted */
err ("was not able to configure devfunc %x on bus %x.\n",
cur_func->device, cur_func->busno);
@@ -157,7 +158,8 @@ int ibmphp_configure_card (struct pci_func *func, u8 slotno)
break;
case PCI_HEADER_TYPE_MULTIDEVICE:
assign_alt_irq (cur_func, class_code);
- if ((rc = configure_device (cur_func)) < 0) {
+ rc = configure_device(cur_func);
+ if (rc < 0) {
/* We need to do this in case some other BARs were properly inserted */
err ("was not able to configure devfunc %x on bus %x...bailing out\n",
cur_func->device, cur_func->busno);
diff --git a/drivers/pci/hotplug/ibmphp_res.c b/drivers/pci/hotplug/ibmphp_res.c
index f34745abd5b6..219ba8090a37 100644
--- a/drivers/pci/hotplug/ibmphp_res.c
+++ b/drivers/pci/hotplug/ibmphp_res.c
@@ -224,7 +224,8 @@ int __init ibmphp_rsrc_init (void)
if ((curr->rsrc_type & RESTYPE) == MMASK) {
/* no bus structure exists in place yet */
if (list_empty (&gbuses)) {
- if ((rc = alloc_bus_range (&newbus, &newrange, curr, MEM, 1)))
+ rc = alloc_bus_range(&newbus, &newrange, curr, MEM, 1);
+ if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("gbuses = NULL, Memory Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@@ -237,7 +238,8 @@ int __init ibmphp_rsrc_init (void)
return rc;
} else {
/* went through all the buses and didn't find ours, need to create a new bus node */
- if ((rc = alloc_bus_range (&newbus, &newrange, curr, MEM, 1)))
+ rc = alloc_bus_range(&newbus, &newrange, curr, MEM, 1);
+ if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
@@ -248,7 +250,8 @@ int __init ibmphp_rsrc_init (void)
/* prefetchable memory */
if (list_empty (&gbuses)) {
/* no bus structure exists in place yet */
- if ((rc = alloc_bus_range (&newbus, &newrange, curr, PFMEM, 1)))
+ rc = alloc_bus_range(&newbus, &newrange, curr, PFMEM, 1);
+ if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("gbuses = NULL, PFMemory Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@@ -261,7 +264,8 @@ int __init ibmphp_rsrc_init (void)
return rc;
} else {
/* went through all the buses and didn't find ours, need to create a new bus node */
- if ((rc = alloc_bus_range (&newbus, &newrange, curr, PFMEM, 1)))
+ rc = alloc_bus_range(&newbus, &newrange, curr, PFMEM, 1);
+ if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("1st Bus, PFMemory Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@@ -271,7 +275,8 @@ int __init ibmphp_rsrc_init (void)
/* IO */
if (list_empty (&gbuses)) {
/* no bus structure exists in place yet */
- if ((rc = alloc_bus_range (&newbus, &newrange, curr, IO, 1)))
+ rc = alloc_bus_range(&newbus, &newrange, curr, IO, 1);
+ if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("gbuses = NULL, IO Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@@ -283,7 +288,8 @@ int __init ibmphp_rsrc_init (void)
return rc;
} else {
/* went through all the buses and didn't find ours, need to create a new bus node */
- if ((rc = alloc_bus_range (&newbus, &newrange, curr, IO, 1)))
+ rc = alloc_bus_range(&newbus, &newrange, curr, IO, 1);
+ if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("1st Bus, IO Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@@ -1038,7 +1044,9 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
/* found our range */
if (!res_prev) {
/* first time in the loop */
- if ((res_cur->start != range->start) && ((len_tmp = res_cur->start - 1 - range->start) >= res->len)) {
+ len_tmp = res_cur->start - 1 - range->start;
+
+ if ((res_cur->start != range->start) && (len_tmp >= res->len)) {
debug ("len_tmp = %x\n", len_tmp);
if ((len_tmp < len_cur) || (len_cur == 0)) {
@@ -1078,7 +1086,9 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
}
if (!res_cur->next) {
/* last device on the range */
- if ((range->end != res_cur->end) && ((len_tmp = range->end - (res_cur->end + 1)) >= res->len)) {
+ len_tmp = range->end - (res_cur->end + 1);
+
+ if ((range->end != res_cur->end) && (len_tmp >= res->len)) {
debug ("len_tmp = %x\n", len_tmp);
if ((len_tmp < len_cur) || (len_cur == 0)) {
@@ -1117,8 +1127,9 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
if (res_prev) {
if (res_prev->rangeno != res_cur->rangeno) {
/* 1st device on this range */
- if ((res_cur->start != range->start) &&
- ((len_tmp = res_cur->start - 1 - range->start) >= res->len)) {
+ len_tmp = res_cur->start - 1 - range->start;
+
+ if ((res_cur->start != range->start) && (len_tmp >= res->len)) {
if ((len_tmp < len_cur) || (len_cur == 0)) {
if ((range->start % tmp_divide) == 0) {
/* just perfect, starting address is divisible by length */
@@ -1153,7 +1164,9 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
}
} else {
/* in the same range */
- if ((len_tmp = res_cur->start - 1 - res_prev->end - 1) >= res->len) {
+ len_tmp = res_cur->start - 1 - res_prev->end - 1;
+
+ if (len_tmp >= res->len) {
if ((len_tmp < len_cur) || (len_cur == 0)) {
if (((res_prev->end + 1) % tmp_divide) == 0) {
/* just perfect, starting address's divisible by length */
@@ -1212,7 +1225,9 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
break;
}
while (range) {
- if ((len_tmp = range->end - range->start) >= res->len) {
+ len_tmp = range->end - range->start;
+
+ if (len_tmp >= res->len) {
if ((len_tmp < len_cur) || (len_cur == 0)) {
if ((range->start % tmp_divide) == 0) {
/* just perfect, starting address's divisible by length */
@@ -1276,7 +1291,9 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
break;
}
while (range) {
- if ((len_tmp = range->end - range->start) >= res->len) {
+ len_tmp = range->end - range->start;
+
+ if (len_tmp >= res->len) {
if ((len_tmp < len_cur) || (len_cur == 0)) {
if ((range->start % tmp_divide) == 0) {
/* just perfect, starting address's divisible by length */
@@ -1335,7 +1352,7 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
return -EINVAL;
}
}
- } /* end if(!res_cur) */
+ } /* end if (!res_cur) */
return -EINVAL;
}
diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c
index a81fb67ea9a1..10c7927599b3 100644
--- a/drivers/pci/hotplug/shpchp_ctrl.c
+++ b/drivers/pci/hotplug/shpchp_ctrl.c
@@ -195,7 +195,8 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,
int rc = 0;
ctrl_dbg(ctrl, "Change speed to %d\n", speed);
- if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed))) {
+ rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed);
+ if (rc) {
ctrl_err(ctrl, "%s: Issue of set bus speed mode command failed\n",
__func__);
return WRONG_BUS_FREQUENCY;
@@ -261,14 +262,16 @@ static int board_added(struct slot *p_slot)
}
if ((ctrl->pci_dev->vendor == 0x8086) && (ctrl->pci_dev->device == 0x0332)) {
- if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz))) {
+ rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz);
+ if (rc) {
ctrl_err(ctrl, "%s: Issue of set bus speed mode command failed\n",
__func__);
return WRONG_BUS_FREQUENCY;
}
/* turn on board, blink green LED, turn off Amber LED */
- if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {
+ rc = p_slot->hpc_ops->slot_enable(p_slot);
+ if (rc) {
ctrl_err(ctrl, "Issue of Slot Enable command failed\n");
return rc;
}
@@ -296,7 +299,8 @@ static int board_added(struct slot *p_slot)
return rc;
/* turn on board, blink green LED, turn off Amber LED */
- if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {
+ rc = p_slot->hpc_ops->slot_enable(p_slot);
+ if (rc) {
ctrl_err(ctrl, "Issue of Slot Enable command failed\n");
return rc;
}
@@ -595,7 +599,7 @@ static int shpchp_enable_slot (struct slot *p_slot)
ctrl_dbg(ctrl, "%s: p_slot->pwr_save %x\n", __func__, p_slot->pwr_save);
p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
- if(((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD) ||
+ if (((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD) ||
(p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458))
&& p_slot->ctrl->num_slots == 1) {
/* handle amd pogo errata; this must be done before enable */
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index 29e22352822c..7d223e9080ef 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -466,7 +466,8 @@ static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
u8 m66_cap = !!(slot_reg & MHZ66_CAP);
u8 pi, pcix_cap;
- if ((retval = hpc_get_prog_int(slot, &pi)))
+ retval = hpc_get_prog_int(slot, &pi);
+ if (retval)
return retval;
switch (pi) {
@@ -798,7 +799,7 @@ static irqreturn_t shpc_isr(int irq, void *dev_id)
ctrl_dbg(ctrl, "%s: intr_loc = %x\n", __func__, intr_loc);
- if(!shpchp_poll_mode) {
+ if (!shpchp_poll_mode) {
/*
* Mask Global Interrupt Mask - see implementation
* note on p. 139 of SHPC spec rev 1.0
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 9ff0a901ecf7..76ef7914c9aa 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -177,7 +177,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
{
struct pci_dev *pci_dev = to_pci_dev(dev);
- return sprintf(buf, "pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x\n",
+ return sprintf(buf, "pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02X\n",
pci_dev->vendor, pci_dev->device,
pci_dev->subsystem_vendor, pci_dev->subsystem_device,
(u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 87680bc4c985..b7678be7b106 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1003,12 +1003,19 @@ int pci_save_state(struct pci_dev *dev)
for (i = 0; i < 16; i++)
pci_read_config_dword(dev, i * 4, &dev->saved_config_space[i]);
dev->state_saved = true;
- if ((i = pci_save_pcie_state(dev)) != 0)
+
+ i = pci_save_pcie_state(dev);
+ if (i != 0)
return i;
- if ((i = pci_save_pcix_state(dev)) != 0)
+
+ i = pci_save_pcix_state(dev);
+ if (i != 0)
return i;
- if ((i = pci_save_vc_state(dev)) != 0)
+
+ i = pci_save_vc_state(dev);
+ if (i != 0)
return i;
+
return 0;
}
EXPORT_SYMBOL(pci_save_state);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 592178981f4e..95239e0cfee6 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3534,57 +3534,6 @@ DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias);
/* Intel 82801, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c49 */
DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias);
-static struct pci_dev *pci_func_0_dma_source(struct pci_dev *dev)
-{
- if (!PCI_FUNC(dev->devfn))
- return pci_dev_get(dev);
-
- return pci_get_slot(dev->bus, PCI_DEVFN(PCI_SLOT(dev->devfn), 0));
-}
-
-static const struct pci_dev_dma_source {
- u16 vendor;
- u16 device;
- struct pci_dev *(*dma_source)(struct pci_dev *dev);
-} pci_dev_dma_source[] = {
- /*
- * https://bugzilla.redhat.com/show_bug.cgi?id=605888
- *
- * Some Ricoh devices use the function 0 source ID for DMA on
- * other functions of a multifunction device. The DMA devices
- * is therefore function 0, which will have implications of the
- * iommu grouping of these devices.
- */
- { PCI_VENDOR_ID_RICOH, 0xe822, pci_func_0_dma_source },
- { PCI_VENDOR_ID_RICOH, 0xe230, pci_func_0_dma_source },
- { PCI_VENDOR_ID_RICOH, 0xe832, pci_func_0_dma_source },
- { PCI_VENDOR_ID_RICOH, 0xe476, pci_func_0_dma_source },
- { 0 }
-};
-
-/*
- * IOMMUs with isolation capabilities need to be programmed with the
- * correct source ID of a device. In most cases, the source ID matches
- * the device doing the DMA, but sometimes hardware is broken and will
- * tag the DMA as being sourced from a different device. This function
- * allows that translation. Note that the reference count of the
- * returned device is incremented on all paths.
- */
-struct pci_dev *pci_get_dma_source(struct pci_dev *dev)
-{
- const struct pci_dev_dma_source *i;
-
- for (i = pci_dev_dma_source; i->dma_source; i++) {
- if ((i->vendor == dev->vendor ||
- i->vendor == (u16)PCI_ANY_ID) &&
- (i->device == dev->device ||
- i->device == (u16)PCI_ANY_ID))
- return i->dma_source(dev);
- }
-
- return pci_dev_get(dev);
-}
-
/*
* AMD has indicated that the devices below do not support peer-to-peer
* in any system where they are found in the southbridge with an AMD
@@ -3686,6 +3635,21 @@ static int pci_quirk_intel_pch_acs(struct pci_dev *dev, u16 acs_flags)
return acs_flags & ~flags ? 0 : 1;
}
+static int pci_quirk_solarflare_acs(struct pci_dev *dev, u16 acs_flags)
+{
+ /*
+ * SV, TB, and UF are not relevant to multifunction endpoints.
+ *
+ * Solarflare indicates that peer-to-peer between functions is not
+ * possible, therefore RR, CR, and DT are not implemented. Mask
+ * these out as if they were clear in the ACS capabilities register.
+ */
+ acs_flags &= ~(PCI_ACS_SV | PCI_ACS_TB | PCI_ACS_RR |
+ PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_DT);
+
+ return acs_flags ? 0 : 1;
+}
+
static const struct pci_dev_acs_enabled {
u16 vendor;
u16 device;
@@ -3697,6 +3661,8 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_ATI, 0x439d, pci_quirk_amd_sb_acs },
{ PCI_VENDOR_ID_ATI, 0x4384, pci_quirk_amd_sb_acs },
{ PCI_VENDOR_ID_ATI, 0x4399, pci_quirk_amd_sb_acs },
+ { PCI_VENDOR_ID_SOLARFLARE, 0x0903, pci_quirk_solarflare_acs },
+ { PCI_VENDOR_ID_SOLARFLARE, 0x0923, pci_quirk_solarflare_acs },
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs },
{ 0 }
};
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 827ad831f1dd..a81f413083e4 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -103,40 +103,6 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
return ret;
}
-/*
- * find the upstream PCIe-to-PCI bridge of a PCI device
- * if the device is PCIE, return NULL
- * if the device isn't connected to a PCIe bridge (that is its parent is a
- * legacy PCI bridge and the bridge is directly connected to bus 0), return its
- * parent
- */
-struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev)
-{
- struct pci_dev *tmp = NULL;
-
- if (pci_is_pcie(pdev))
- return NULL;
- while (1) {
- if (pci_is_root_bus(pdev->bus))
- break;
- pdev = pdev->bus->self;
- /* a p2p bridge */
- if (!pci_is_pcie(pdev)) {
- tmp = pdev;
- continue;
- }
- /* PCI device should connect to a PCIe bridge */
- if (pci_pcie_type(pdev) != PCI_EXP_TYPE_PCI_BRIDGE) {
- /* Busted hardware? */
- WARN_ON_ONCE(1);
- return NULL;
- }
- return pdev;
- }
-
- return tmp;
-}
-
static struct pci_bus *pci_do_find_bus(struct pci_bus *bus, unsigned char busnr)
{
struct pci_bus *child;
diff --git a/include/linux/pci.h b/include/linux/pci.h
index d868c08eea63..ef98f73ea618 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1557,16 +1557,11 @@ enum pci_fixup_pass {
#ifdef CONFIG_PCI_QUIRKS
void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
-struct pci_dev *pci_get_dma_source(struct pci_dev *dev);
int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags);
void pci_dev_specific_enable_acs(struct pci_dev *dev);
#else
static inline void pci_fixup_device(enum pci_fixup_pass pass,
struct pci_dev *dev) { }
-static inline struct pci_dev *pci_get_dma_source(struct pci_dev *dev)
-{
- return pci_dev_get(dev);
-}
static inline int pci_dev_specific_acs_enabled(struct pci_dev *dev,
u16 acs_flags)
{
@@ -1828,17 +1823,6 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
int (*fn)(struct pci_dev *pdev,
u16 alias, void *data), void *data);
-/**
- * pci_find_upstream_pcie_bridge - find upstream PCIe-to-PCI bridge of a device
- * @pdev: the PCI device
- *
- * if the device is PCIE, return NULL
- * if the device isn't connected to a PCIe bridge (that is its parent is a
- * legacy PCI bridge and the bridge is directly connected to bus 0), return its
- * parent
- */
-struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);
-
/* helper functions for operation of device flag */
static inline void pci_set_dev_assigned(struct pci_dev *pdev)
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 09:33:05 +0000