Merge tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "PCI changes for the v3.14 merge window:

  Resource management
    - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas)
    - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu)
    - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas)
    - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas)
    - Enforce bus address limits in resource allocation (Yinghai Lu)
    - Allocate 64-bit BARs above 4G when possible (Yinghai Lu)
    - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu)

  PCI device hotplug
    - Major rescan/remove locking update (Rafael J. Wysocki)
    - Make ioapic builtin only (not modular) (Yinghai Lu)
    - Fix release/free issues (Yinghai Lu)
    - Clean up pciehp (Bjorn Helgaas)
    - Announce pciehp slot info during enumeration (Bjorn Helgaas)

  MSI
    - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev)
    - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev)
    - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev)
    - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman)
    - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong)

  SR-IOV
    - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao)

  Virtualization
    - Add support for save/restore of extended capabilities (Alex Williamson)
    - Add Virtual Channel to save/restore support (Alex Williamson)
    - Never treat a VF as a multifunction device (Alex Williamson)
    - Add pci_try_reset_function(), et al (Alex Williamson)

  AER
    - Ignore non-PCIe error sources (Betty Dall)
    - Support ACPI HEST error sources for domains other than 0 (Betty Dall)
    - Consolidate HEST error source parsers (Bjorn Helgaas)
    - Add a TLP header print helper (Borislav Petkov)

  Freescale i.MX6
    - Remove unnecessary code (Fabio Estevam)
    - Make reset-gpio optional (Marek Vasut)
    - Report "link up" only after link training completes (Marek Vasut)
    - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut)
    - Fix PCIe startup code (Richard Zhu)

  Marvell MVEBU
    - Remove duplicate of_clk_get_by_name() call (Andrew Lunn)
    - Drop writes to bridge Secondary Status register (Jason Gunthorpe)
    - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe)
    - Support a bridge with no IO port window (Jason Gunthorpe)
    - Use max_t() instead of max(resource_size_t,) (Jingoo Han)
    - Remove redundant of_match_ptr (Sachin Kamat)
    - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni)

  NVIDIA Tegra
    - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower)

  Renesas R-Car
    - Add runtime PM support (Valentine Barshak)
    - Fix rcar_pci_probe() return value check (Wei Yongjun)

  Synopsys DesignWare
    - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen)
    - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen)
    - Fix missing MSI IRQs (Harro Haan)
    - Add dw_pcie prefix before cfg_read/write (Pratyush Anand)
    - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand)
    - Whitespace cleanup (Jingoo Han)

  EISA
    - Call put_device() if device_register() fails (Levente Kurusa)
    - Revert EISA initialization breakage ((Bjorn Helgaas)

  Miscellaneous
    - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger)
    - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas)
    - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas)
    - Use dev_is_pci() to identify PCI devices (Yijing Wang)
    - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches)
    - Update documentation 00-INDEX (Erik Ekman)"

* tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (119 commits)
  Revert "EISA: Initialize device before its resources"
  Revert "EISA: Log device resources in dmesg"
  vfio-pci: Use pci "try" reset interface
  PCI: Check parent kobject in pci_destroy_dev()
  xen/pcifront: Use global PCI rescan-remove locking
  powerpc/eeh: Use global PCI rescan-remove locking
  PCI: Fix pci_check_and_unmask_intx() comment typos
  PCI: Add pci_try_reset_function(), pci_try_reset_slot(), pci_try_reset_bus()
  MPT / PCI: Use pci_stop_and_remove_bus_device_locked()
  platform / x86: Use global PCI rescan-remove locking
  PCI: hotplug: Use global PCI rescan-remove locking
  pcmcia: Use global PCI rescan-remove locking
  ACPI / hotplug / PCI: Use global PCI rescan-remove locking
  ACPI / PCI: Use global PCI rescan-remove locking in PCI root hotplug
  PCI: Add global pci_lock_rescan_remove()
  PCI: Cleanup pci.h whitespace
  PCI: Reorder so actual code comes before stubs
  PCI/AER: Support ACPI HEST AER error sources for PCI domains other than 0
  ACPICA: Add helper macros to extract bus/segment numbers from HEST table.
  PCI: Make local functions static
  ...

1 files changed, 48 insertions, 47 deletions

diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c
index 2c7c9f5f592c..34ff7026440c 100644
--- a/drivers/pci/pcie/aer/aerdrv_errprint.c
+++ b/drivers/pci/pcie/aer/aerdrv_errprint.c
@@ -124,6 +124,21 @@ static const char *aer_agent_string[] = {
 	"Transmitter ID"
 };
 
+static void __print_tlp_header(struct pci_dev *dev,
+			       struct aer_header_log_regs *t)
+{
+	unsigned char *tlp = (unsigned char *)&t;
+
+	dev_err(&dev->dev, "  TLP Header:"
+		" %02x%02x%02x%02x %02x%02x%02x%02x"
+		" %02x%02x%02x%02x %02x%02x%02x%02x\n",
+		*(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
+		*(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4),
+		*(tlp + 11), *(tlp + 10), *(tlp + 9),
+		*(tlp + 8), *(tlp + 15), *(tlp + 14),
+		*(tlp + 13), *(tlp + 12));
+}
+
 static void __aer_print_error(struct pci_dev *dev,
 			      struct aer_err_info *info)
 {
@@ -153,48 +168,39 @@ static void __aer_print_error(struct pci_dev *dev,
 
 void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
 {
+	int layer, agent;
 	int id = ((dev->bus->number << 8) | dev->devfn);
 
-	if (info->status == 0) {
+	if (!info->status) {
 		dev_err(&dev->dev,
 			"PCIe Bus Error: severity=%s, type=Unaccessible, "
 			"id=%04x(Unregistered Agent ID)\n",
 			aer_error_severity_string[info->severity], id);
-	} else {
-		int layer, agent;
+		goto out;
+	}
 
-		layer = AER_GET_LAYER_ERROR(info->severity, info->status);
-		agent = AER_GET_AGENT(info->severity, info->status);
+	layer = AER_GET_LAYER_ERROR(info->severity, info->status);
+	agent = AER_GET_AGENT(info->severity, info->status);
 
-		dev_err(&dev->dev,
-			"PCIe Bus Error: severity=%s, type=%s, id=%04x(%s)\n",
-			aer_error_severity_string[info->severity],
-			aer_error_layer[layer], id, aer_agent_string[agent]);
+	dev_err(&dev->dev,
+		"PCIe Bus Error: severity=%s, type=%s, id=%04x(%s)\n",
+		aer_error_severity_string[info->severity],
+		aer_error_layer[layer], id, aer_agent_string[agent]);
 
-		dev_err(&dev->dev,
-			"  device [%04x:%04x] error status/mask=%08x/%08x\n",
-			dev->vendor, dev->device,
-			info->status, info->mask);
-
-		__aer_print_error(dev, info);
-
-		if (info->tlp_header_valid) {
-			unsigned char *tlp = (unsigned char *) &info->tlp;
-			dev_err(&dev->dev, "  TLP Header:"
-				" %02x%02x%02x%02x %02x%02x%02x%02x"
-				" %02x%02x%02x%02x %02x%02x%02x%02x\n",
-				*(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
-				*(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4),
-				*(tlp + 11), *(tlp + 10), *(tlp + 9),
-				*(tlp + 8), *(tlp + 15), *(tlp + 14),
-				*(tlp + 13), *(tlp + 12));
-		}
-	}
+	dev_err(&dev->dev,
+		"  device [%04x:%04x] error status/mask=%08x/%08x\n",
+		dev->vendor, dev->device,
+		info->status, info->mask);
+
+	__aer_print_error(dev, info);
 
+	if (info->tlp_header_valid)
+		__print_tlp_header(dev, &info->tlp);
+
+out:
 	if (info->id && info->error_dev_num > 1 && info->id == id)
-		dev_err(&dev->dev,
-			   "  Error of this Agent(%04x) is reported first\n",
-			id);
+		dev_err(&dev->dev, "  Error of this Agent(%04x) is reported first\n", id);
+
 	trace_aer_event(dev_name(&dev->dev), (info->status & ~info->mask),
 			info->severity);
 }
@@ -228,6 +234,7 @@ void cper_print_aer(struct pci_dev *dev, int cper_severity,
 	const char **status_strs;
 
 	aer_severity = cper_severity_to_aer(cper_severity);
+
 	if (aer_severity == AER_CORRECTABLE) {
 		status = aer->cor_status;
 		mask = aer->cor_mask;
@@ -240,28 +247,22 @@ void cper_print_aer(struct pci_dev *dev, int cper_severity,
 		status_strs_size = ARRAY_SIZE(aer_uncorrectable_error_string);
 		tlp_header_valid = status & AER_LOG_TLP_MASKS;
 	}
+
 	layer = AER_GET_LAYER_ERROR(aer_severity, status);
 	agent = AER_GET_AGENT(aer_severity, status);
-	dev_err(&dev->dev, "aer_status: 0x%08x, aer_mask: 0x%08x\n",
-	       status, mask);
+
+	dev_err(&dev->dev, "aer_status: 0x%08x, aer_mask: 0x%08x\n", status, mask);
 	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]);
+		aer_error_layer[layer], aer_agent_string[agent]);
+
 	if (aer_severity != AER_CORRECTABLE)
 		dev_err(&dev->dev, "aer_uncor_severity: 0x%08x\n",
-		       aer->uncor_severity);
-	if (tlp_header_valid) {
-		const unsigned char *tlp;
-		tlp = (const unsigned char *)&aer->header_log;
-		dev_err(&dev->dev, "aer_tlp_header:"
-			" %02x%02x%02x%02x %02x%02x%02x%02x"
-			" %02x%02x%02x%02x %02x%02x%02x%02x\n",
-			*(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
-			*(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4),
-			*(tlp + 11), *(tlp + 10), *(tlp + 9),
-			*(tlp + 8), *(tlp + 15), *(tlp + 14),
-			*(tlp + 13), *(tlp + 12));
-	}
+			aer->uncor_severity);
+
+	if (tlp_header_valid)
+		__print_tlp_header(dev, &aer->header_log);
+
 	trace_aer_event(dev_name(&dev->dev), (status & ~mask),
 			aer_severity);
 }