@@ -22,11 +22,10 @@
#include <linux/miscdevice.h>
#include <linux/pci.h>
#include <linux/fs.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include "aerdrv.h"
-struct aer_error_inj
-{
+struct aer_error_inj {
u8 bus;
u8 dev;
u8 fn;
@@ -38,8 +37,7 @@ struct aer_error_inj
u32 header_log3;
};
-struct aer_error
-{
+struct aer_error {
struct list_head list;
unsigned int bus;
unsigned int devfn;
@@ -55,8 +53,7 @@ struct aer_error
u32 source_id;
};
-struct pci_bus_ops
-{
+struct pci_bus_ops {
struct list_head list;
struct pci_bus *bus;
struct pci_ops *ops;
@@ -150,7 +147,7 @@ static u32 *find_pci_config_dword(struct aer_error *err, int where,
target = &err->header_log1;
break;
case PCI_ERR_HEADER_LOG+8:
- target = &err->header_log2;
+ target = &err->header_log2;
break;
case PCI_ERR_HEADER_LOG+12:
target = &err->header_log3;
@@ -258,8 +255,7 @@ static int pci_bus_set_aer_ops(struct pci_bus *bus)
bus_ops = NULL;
out:
spin_unlock_irqrestore(&inject_lock, flags);
- if (bus_ops)
- kfree(bus_ops);
+ kfree(bus_ops);
return 0;
}
@@ -401,10 +397,8 @@ static int aer_inject(struct aer_error_inj *einj)
else
ret = -EINVAL;
out_put:
- if (err_alloc)
- kfree(err_alloc);
- if (rperr_alloc)
- kfree(rperr_alloc);
+ kfree(err_alloc);
+ kfree(rperr_alloc);
pci_dev_put(dev);
return ret;
}
@@ -458,8 +452,7 @@ static void __exit aer_inject_exit(void)
}
spin_lock_irqsave(&inject_lock, flags);
- list_for_each_entry_safe(err, err_next,
- &pci_bus_ops_list, list) {
+ list_for_each_entry_safe(err, err_next, &pci_bus_ops_list, list) {
list_del(&err->list);
kfree(err);
}
@@ -38,7 +38,7 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-static int __devinit aer_probe (struct pcie_device *dev);
+static int __devinit aer_probe(struct pcie_device *dev);
static void aer_remove(struct pcie_device *dev);
static pci_ers_result_t aer_error_detected(struct pci_dev *dev,
enum pci_channel_state error);
@@ -47,7 +47,7 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev);
static struct pci_error_handlers aer_error_handlers = {
.error_detected = aer_error_detected,
- .resume = aer_error_resume,
+ .resume = aer_error_resume,
};
static struct pcie_port_service_driver aerdriver = {
@@ -134,12 +134,12 @@ EXPORT_SYMBOL_GPL(aer_irq);
*
* Invoked when Root Port's AER service is loaded.
**/
-static struct aer_rpc* aer_alloc_rpc(struct pcie_device *dev)
+static struct aer_rpc *aer_alloc_rpc(struct pcie_device *dev)
{
struct aer_rpc *rpc;
- if (!(rpc = kzalloc(sizeof(struct aer_rpc),
- GFP_KERNEL)))
+ rpc = kzalloc(sizeof(struct aer_rpc), GFP_KERNEL);
+ if (!rpc)
return NULL;
/*
@@ -189,26 +189,28 @@ static void aer_remove(struct pcie_device *dev)
*
* Invoked when PCI Express bus loads AER service driver.
**/
-static int __devinit aer_probe (struct pcie_device *dev)
+static int __devinit aer_probe(struct pcie_device *dev)
{
int status;
struct aer_rpc *rpc;
struct device *device = &dev->device;
/* Init */
- if ((status = aer_init(dev)))
+ status = aer_init(dev);
+ if (status)
return status;
/* Alloc rpc data structure */
- if (!(rpc = aer_alloc_rpc(dev))) {
+ rpc = aer_alloc_rpc(dev);
+ if (!rpc) {
dev_printk(KERN_DEBUG, device, "alloc rpc failed\n");
aer_remove(dev);
return -ENOMEM;
}
/* Request IRQ ISR */
- if ((status = request_irq(dev->irq, aer_irq, IRQF_SHARED, "aerdrv",
- dev))) {
+ status = request_irq(dev->irq, aer_irq, IRQF_SHARED, "aerdrv", dev);
+ if (status) {
dev_printk(KERN_DEBUG, device, "request IRQ failed\n");
aer_remove(dev);
return status;
@@ -21,7 +21,7 @@
#define AER_ERROR(d) (d & AER_ERROR_MASK)
/* Root Error Status Register Bits */
-#define ROOT_ERR_STATUS_MASKS 0x0f
+#define ROOT_ERR_STATUS_MASKS 0x0f
#define SYSTEM_ERROR_INTR_ON_MESG_MASK (PCI_EXP_RTCTL_SECEE| \
PCI_EXP_RTCTL_SENFEE| \
@@ -65,7 +65,7 @@ struct aer_err_info {
int severity; /* 0:NONFATAL | 1:FATAL | 2:COR */
int flags;
unsigned int status; /* COR/UNCOR Error Status */
- struct header_log_regs tlp; /* TLP Header */
+ struct header_log_regs tlp; /* TLP Header */
};
struct aer_err_source {
@@ -136,4 +136,4 @@ static inline int aer_osc_setup(struct pcie_device *pciedev)
}
#endif
-#endif //_AERDRV_H_
+#endif /* _AERDRV_H_ */
@@ -49,10 +49,11 @@ int pci_enable_pcie_error_reporting(struct pci_dev *dev)
PCI_EXP_DEVCTL_NFERE |
PCI_EXP_DEVCTL_FERE |
PCI_EXP_DEVCTL_URRE;
- pci_write_config_word(dev, pos+PCI_EXP_DEVCTL,
- reg16);
+ pci_write_config_word(dev, pos+PCI_EXP_DEVCTL, reg16);
+
return 0;
}
+EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
int pci_disable_pcie_error_reporting(struct pci_dev *dev)
{
@@ -68,10 +69,11 @@ int pci_disable_pcie_error_reporting(struct pci_dev *dev)
PCI_EXP_DEVCTL_NFERE |
PCI_EXP_DEVCTL_FERE |
PCI_EXP_DEVCTL_URRE);
- pci_write_config_word(dev, pos+PCI_EXP_DEVCTL,
- reg16);
+ pci_write_config_word(dev, pos+PCI_EXP_DEVCTL, reg16);
+
return 0;
}
+EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
{
@@ -92,6 +94,7 @@ int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
return 0;
}
+EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);
#if 0
int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
@@ -110,7 +113,6 @@ int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
}
#endif /* 0 */
-
static int set_device_error_reporting(struct pci_dev *dev, void *data)
{
bool enable = *((bool *)data);
@@ -164,8 +166,9 @@ static int add_error_device(struct aer_err_info *e_info, struct pci_dev *dev)
e_info->dev[e_info->error_dev_num] = dev;
e_info->error_dev_num++;
return 1;
- } else
- return 0;
+ }
+
+ return 0;
}
@@ -411,8 +414,7 @@ static pci_ers_result_t broadcast_error_message(struct pci_dev *dev,
pci_cleanup_aer_uncorrect_error_status(dev);
dev->error_state = pci_channel_io_normal;
}
- }
- else {
+ } else {
/*
* If the error is reported by an end point, we think this
* error is related to the upstream link of the end point.
@@ -473,7 +475,7 @@ static pci_ers_result_t reset_link(struct pcie_device *aerdev,
if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE)
udev = dev;
else
- udev= dev->bus->self;
+ udev = dev->bus->self;
data.is_downstream = 0;
data.aer_driver = NULL;
@@ -576,7 +578,7 @@ static pci_ers_result_t do_recovery(struct pcie_device *aerdev,
*
* Invoked when an error being detected by Root Port.
*/
-static void handle_error_source(struct pcie_device * aerdev,
+static void handle_error_source(struct pcie_device *aerdev,
struct pci_dev *dev,
struct aer_err_info *info)
{
@@ -682,7 +684,7 @@ static void disable_root_aer(struct aer_rpc *rpc)
*
* Invoked by DPC handler to consume an error.
*/
-static struct aer_err_source* get_e_source(struct aer_rpc *rpc)
+static struct aer_err_source *get_e_source(struct aer_rpc *rpc)
{
struct aer_err_source *e_source;
unsigned long flags;
@@ -865,8 +867,3 @@ int aer_init(struct pcie_device *dev)
return AER_SUCCESS;
}
-
-EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
-EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
-EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);
-
@@ -33,7 +33,7 @@
#define AER_AGENT_COMPLETER_MASK PCI_ERR_UNC_COMP_ABORT
#define AER_AGENT_TRANSMITTER_MASK(t, e) (e & (PCI_ERR_COR_REP_ROLL| \
- ((t == AER_CORRECTABLE) ? PCI_ERR_COR_REP_TIMER: 0)))
+ ((t == AER_CORRECTABLE) ? PCI_ERR_COR_REP_TIMER : 0)))
#define AER_GET_AGENT(t, e) \
((e & AER_AGENT_COMPLETER_MASK) ? AER_AGENT_COMPLETER : \
@@ -44,11 +44,11 @@
#define AER_PHYSICAL_LAYER_ERROR_MASK PCI_ERR_COR_RCVR
#define AER_DATA_LINK_LAYER_ERROR_MASK(t, e) \
(PCI_ERR_UNC_DLP| \
- PCI_ERR_COR_BAD_TLP| \
+ PCI_ERR_COR_BAD_TLP| \
PCI_ERR_COR_BAD_DLLP| \
- PCI_ERR_COR_REP_ROLL| \
+ PCI_ERR_COR_REP_ROLL| \
((t == AER_CORRECTABLE) ? \
- PCI_ERR_COR_REP_TIMER: 0))
+ PCI_ERR_COR_REP_TIMER : 0))
#define AER_PHYSICAL_LAYER_ERROR 0
#define AER_DATA_LINK_LAYER_ERROR 1
@@ -58,38 +58,38 @@
((e & AER_PHYSICAL_LAYER_ERROR_MASK) ? \
AER_PHYSICAL_LAYER_ERROR : \
(e & AER_DATA_LINK_LAYER_ERROR_MASK(t, e)) ? \
- AER_DATA_LINK_LAYER_ERROR : \
+ AER_DATA_LINK_LAYER_ERROR : \
AER_TRANSACTION_LAYER_ERROR)
/*
* AER error strings
*/
-static char* aer_error_severity_string[] = {
+static char *aer_error_severity_string[] = {
"Uncorrected (Non-Fatal)",
"Uncorrected (Fatal)",
"Corrected"
};
-static char* aer_error_layer[] = {
+static char *aer_error_layer[] = {
"Physical Layer",
"Data Link Layer",
"Transaction Layer"
};
-static char* aer_correctable_error_string[] = {
- "Receiver Error ", /* Bit Position 0 */
+static char *aer_correctable_error_string[] = {
+ "Receiver Error ", /* Bit Position 0 */
NULL,
NULL,
NULL,
NULL,
NULL,
- "Bad TLP ", /* Bit Position 6 */
- "Bad DLLP ", /* Bit Position 7 */
- "RELAY_NUM Rollover ", /* Bit Position 8 */
+ "Bad TLP ", /* Bit Position 6 */
+ "Bad DLLP ", /* Bit Position 7 */
+ "RELAY_NUM Rollover ", /* Bit Position 8 */
NULL,
NULL,
NULL,
- "Replay Timer Timeout ", /* Bit Position 12 */
- "Advisory Non-Fatal ", /* Bit Position 13 */
+ "Replay Timer Timeout ", /* Bit Position 12 */
+ "Advisory Non-Fatal ", /* Bit Position 13 */
NULL,
NULL,
NULL,
@@ -110,7 +110,7 @@ static char* aer_correctable_error_string[] = {
NULL,
};
-static char* aer_uncorrectable_error_string[] = {
+static char *aer_uncorrectable_error_string[] = {
NULL,
NULL,
NULL,
@@ -123,10 +123,10 @@ static char* aer_uncorrectable_error_string[] = {
NULL,
NULL,
NULL,
- "Poisoned TLP ", /* Bit Position 12 */
+ "Poisoned TLP ", /* Bit Position 12 */
"Flow Control Protocol ", /* Bit Position 13 */
- "Completion Timeout ", /* Bit Position 14 */
- "Completer Abort ", /* Bit Position 15 */
+ "Completion Timeout ", /* Bit Position 14 */
+ "Completer Abort ", /* Bit Position 15 */
"Unexpected Completion ", /* Bit Position 16 */
"Receiver Overflow ", /* Bit Position 17 */
"Malformed TLP ", /* Bit Position 18 */
@@ -145,19 +145,19 @@ static char* aer_uncorrectable_error_string[] = {
NULL,
};
-static char* aer_agent_string[] = {
+static char *aer_agent_string[] = {
"Receiver ID",
"Requester ID",
"Completer ID",
"Transmitter ID"
};
-static char * aer_get_error_source_name(int severity,
+static char *aer_get_error_source_name(int severity,
unsigned int status,
char errmsg_buff[])
{
int i;
- char * errmsg = NULL;
+ char *errmsg = NULL;
for (i = 0; i < 32; i++) {
if (!(status & (1 << i)))
@@ -183,9 +183,9 @@ static DEFINE_SPINLOCK(logbuf_lock);
static char errmsg_buff[100];
void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
{
- char * errmsg;
+ char *errmsg;
int err_layer, agent;
- char * loglevel;
+ char *loglevel;
if (info->severity == AER_CORRECTABLE)
loglevel = KERN_WARNING;
@@ -196,7 +196,7 @@ void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
printk("%sError Severity\t\t: %s\n", loglevel,
aer_error_severity_string[info->severity]);
- if ( info->status == 0) {
+ if (info->status == 0) {
printk("%sPCIE Bus Error type\t: (Unaccessible)\n", loglevel);
printk("%sUnaccessible Received\t: %s\n", loglevel,
info->flags & AER_MULTI_ERROR_VALID_FLAG ?
@@ -245,4 +245,3 @@ void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
}
}
}
-