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PCI: aerdrv: rework find_source_device

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Return bool to indicate that the source device is found or not.
This allows us to skip calling aer_process_err_devices() if we can.

And move dev_printk for debug into this function.

v2: return bool instead of int

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Hidetoshi Seto 2010-04-15 13:11:42 +09:00 committed by Jesse Barnes
parent 843f4697ee
commit 98ca3964fe
1 changed files with 16 additions and 12 deletions
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28
drivers/pci/pcie/aer/aerdrv_core.c
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@ -215,11 +215,13 @@ added:
/**
* find_source_device - search through device hierarchy for source device
* @parent: pointer to Root Port pci_dev data structure
* @err_info: including detailed error information such like id
* @e_info: including detailed error information such like id
*
* Invoked when error is detected at the Root Port.
* Return true if found.
*
* Invoked by DPC when error is detected at the Root Port.
*/
static void find_source_device(struct pci_dev *parent,
static bool find_source_device(struct pci_dev *parent,
struct aer_err_info *e_info)
{
struct pci_dev *dev = parent;
@ -228,9 +230,17 @@ static void find_source_device(struct pci_dev *parent,
/* Is Root Port an agent that sends error message? */
result = find_device_iter(dev, e_info);
if (result)
return;
return true;
pci_walk_bus(parent->subordinate, find_device_iter, e_info);
if (!e_info->error_dev_num) {
dev_printk(KERN_DEBUG, &parent->dev,
"can't find device of ID%04x\n",
e_info->id);
return false;
}
return true;
}
static int report_error_detected(struct pci_dev *dev, void *data)
@ -639,12 +649,6 @@ static inline void aer_process_err_devices(struct pcie_device *p_device,
{
int i;
if (!e_info->dev[0]) {
dev_printk(KERN_DEBUG, &p_device->port->dev,
"can't find device of ID%04x\n",
e_info->id);
}
/* Report all before handle them, not to lost records by reset etc. */
for (i = 0; i < e_info->error_dev_num && e_info->dev[i]; i++) {
if (get_device_error_info(e_info->dev[i], e_info))
@ -702,8 +706,8 @@ static void aer_isr_one_error(struct pcie_device *p_device,
aer_print_port_info(p_device->port, e_info);
find_source_device(p_device->port, e_info);
aer_process_err_devices(p_device, e_info);
if (find_source_device(p_device->port, e_info))
aer_process_err_devices(p_device, e_info);
}
kfree(e_info);