@@ -250,10 +250,6 @@ static const char *cper_pcie_port_type_strs[] = {
static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
const struct acpi_hest_generic_data *gdata)
{
-#ifdef CONFIG_ACPI_APEI_PCIEAER
- struct pci_dev *dev;
-#endif
-
if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE)
printk("%s""port_type: %d, %s\n", pfx, pcie->port_type,
pcie->port_type < ARRAY_SIZE(cper_pcie_port_type_strs) ?
@@ -285,20 +281,6 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
printk(
"%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n",
pfx, pcie->bridge.secondary_status, pcie->bridge.control);
-#ifdef CONFIG_ACPI_APEI_PCIEAER
- dev = pci_get_domain_bus_and_slot(pcie->device_id.segment,
- pcie->device_id.bus, pcie->device_id.function);
- if (!dev) {
- pr_err("PCI AER Cannot get PCI device %04x:%02x:%02x.%d\n",
- pcie->device_id.segment, pcie->device_id.bus,
- pcie->device_id.slot, pcie->device_id.function);
- return;
- }
- if (pcie->validation_bits & CPER_PCIE_VALID_AER_INFO)
- cper_print_aer(pfx, dev, gdata->error_severity,
- (struct aer_capability_regs *) pcie->aer_info);
- pci_dev_put(dev);
-#endif
}
static const char *apei_estatus_section_flag_strs[] = {
@@ -454,7 +454,9 @@ static void ghes_do_proc(struct ghes *ghes,
aer_severity = cper_severity_to_aer(sev);
aer_recover_queue(pcie_err->device_id.segment,
pcie_err->device_id.bus,
- devfn, aer_severity);
+ devfn, aer_severity,
+ (struct aer_capability_regs *)
+ pcie_err->aer_info);
}
}
@@ -582,6 +582,7 @@ struct aer_recover_entry
u8 devfn;
u16 domain;
int severity;
+ struct aer_capability_regs *regs;
};
static DEFINE_KFIFO(aer_recover_ring, struct aer_recover_entry,
@@ -595,7 +596,7 @@ static DEFINE_SPINLOCK(aer_recover_ring_lock);
static DECLARE_WORK(aer_recover_work, aer_recover_work_func);
void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
- int severity)
+ int severity, struct aer_capability_regs *aer_regs)
{
unsigned long flags;
struct aer_recover_entry entry = {
@@ -603,6 +604,7 @@ void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
.devfn = devfn,
.domain = domain,
.severity = severity,
+ .regs = aer_regs,
};
spin_lock_irqsave(&aer_recover_ring_lock, flags);
@@ -629,6 +631,7 @@ static void aer_recover_work_func(struct work_struct *work)
PCI_SLOT(entry.devfn), PCI_FUNC(entry.devfn));
continue;
}
+ cper_print_aer(pdev, entry.severity, entry.regs);
do_recovery(pdev, entry.severity);
pci_dev_put(pdev);
}
@@ -220,7 +220,7 @@ int cper_severity_to_aer(int cper_severity)
}
EXPORT_SYMBOL_GPL(cper_severity_to_aer);
-void cper_print_aer(const char *prefix, struct pci_dev *dev, int cper_severity,
+void cper_print_aer(struct pci_dev *dev, int cper_severity,
struct aer_capability_regs *aer)
{
int aer_severity, layer, agent, status_strs_size, tlp_header_valid = 0;
@@ -244,7 +244,7 @@ void cper_print_aer(const char *prefix, struct pci_dev *dev, int cper_severity,
agent = AER_GET_AGENT(aer_severity, status);
dev_err(&dev->dev, "aer_status: 0x%08x, aer_mask: 0x%08x\n",
status, mask);
- cper_print_bits(prefix, status, status_strs, status_strs_size);
+ cper_print_bits("", status, status_strs, status_strs_size);
dev_err(&dev->dev, "aer_layer=%s, aer_agent=%s\n",
aer_error_layer[layer], aer_agent_string[agent]);
if (aer_severity != AER_CORRECTABLE)
@@ -49,10 +49,11 @@ static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
}
#endif
-extern void cper_print_aer(const char *prefix, struct pci_dev *dev,
+extern void cper_print_aer(struct pci_dev *dev,
int cper_severity, struct aer_capability_regs *aer);
extern int cper_severity_to_aer(int cper_severity);
extern void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
- int severity);
+ int severity,
+ struct aer_capability_regs *aer_regs);
#endif //_AER_H_
The following warning was seen on 3.9 when a corrected PCIe error was being handled by the AER subsystem. WARNING: at .../drivers/pci/search.c:214 pci_get_dev_by_id+0x8a/0x90() This occurred because a call to pci_get_domain_bus_and_slot() was added to cper_print_pcie() to setup for the call to cper_print_aer(). The warning showed up because cper_print_pcie() is called in an interrupt context and pci_get* functions are not supposed to be called in that context. The solution is to move the cper_print_aer() call out of the interrupt context and into aer_recover_work_func() to avoid any warnings when calling pci_get* functions. v2 - Re-worded header text. Removed prefix arg from cper_print_aer(). Added TODO message in cper_print_aer(). v3 - Changed type of u8* to struct aer_capability_regs* in the code to avoid too much casting based on comment from Bjorn Helgaas. v4 - Removed TODO message. Does not have to do with what this patch is trying to fix. Signed-off-by: Lance Ortiz <lance.ortiz@hp.com> Acked-by: Borislav Petkov <bp@suse.de> --- drivers/acpi/apei/cper.c | 18 ------------------ drivers/acpi/apei/ghes.c | 4 +++- drivers/pci/pcie/aer/aerdrv_core.c | 5 ++++- drivers/pci/pcie/aer/aerdrv_errprint.c | 4 ++-- include/linux/aer.h | 5 +++-- 5 files changed, 12 insertions(+), 24 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html