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| author | Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> | 2010-04-15 13:11:42 +0900 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-05-11 12:01:14 -0700 |
| commit | 98ca3964fe8da0d742331af80952443af5cff464 (patch) | |
| tree | 35c1b803496ca97322d88754de804117114a7c11 /drivers/pci | |
| parent | 843f4697eea576c24f057bbdb199115bbb6b10bc (diff) | |
| download | linux-3.10-98ca3964fe8da0d742331af80952443af5cff464.tar.gz linux-3.10-98ca3964fe8da0d742331af80952443af5cff464.tar.bz2 linux-3.10-98ca3964fe8da0d742331af80952443af5cff464.zip | |
PCI: aerdrv: rework find_source_device
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>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv_core.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index ad15eea54fd..5fa5c76719b 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -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); |