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Subject[PATCH v2 1/8] PCI: Introduce pci_bus_*() printing macros when device is not available
Date
In some cases PCI device structure is not available and we want to print
information based on the bus and devfn parameters. For this cases introduce
pci_bus_*() printing macros and replace in existing users.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
---
drivers/pci/probe.c | 12 +++---------
include/linux/pci.h | 8 ++++++++
2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 78962652f5bf..82014b248f4d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -2333,16 +2333,12 @@ static bool pci_bus_wait_crs(struct pci_bus *bus, int devfn, u32 *l,
*/
while (pci_bus_crs_vendor_id(*l)) {
if (delay > timeout) {
- pr_warn("pci %04x:%02x:%02x.%d: not ready after %dms; giving up\n",
- pci_domain_nr(bus), bus->number,
- PCI_SLOT(devfn), PCI_FUNC(devfn), delay - 1);
+ pci_bus_warn(bus, devfn, "not ready after %dms; giving up\n", delay - 1);

return false;
}
if (delay >= 1000)
- pr_info("pci %04x:%02x:%02x.%d: not ready after %dms; waiting\n",
- pci_domain_nr(bus), bus->number,
- PCI_SLOT(devfn), PCI_FUNC(devfn), delay - 1);
+ pci_bus_info(bus, devfn, "not ready after %dms; waiting\n", delay - 1);

msleep(delay);
delay *= 2;
@@ -2352,9 +2348,7 @@ static bool pci_bus_wait_crs(struct pci_bus *bus, int devfn, u32 *l,
}

if (delay >= 1000)
- pr_info("pci %04x:%02x:%02x.%d: ready after %dms\n",
- pci_domain_nr(bus), bus->number,
- PCI_SLOT(devfn), PCI_FUNC(devfn), delay - 1);
+ pci_bus_info(bus, devfn, "ready after %dms\n", delay - 1);

return true;
}
diff --git a/include/linux/pci.h b/include/linux/pci.h
index d4308f847e58..e3c9edd103df 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2484,4 +2484,12 @@ void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type);
WARN_ONCE(condition, "%s %s: " fmt, \
dev_driver_string(&(pdev)->dev), pci_name(pdev), ##arg)

+#define pci_bus_printk(level, bus, devfn, fmt, arg...) \
+ printk(level "pci %04x:%02x:%02x.%d: " fmt, \
+ pci_domain_nr(bus), (bus)->number, PCI_SLOT(devfn), PCI_FUNC(devfn), ##arg)
+
+#define pci_bus_err(bus, devfn, fmt, arg...) pci_bus_printk(KERN_ERR, (bus), devfn, fmt, ##arg)
+#define pci_bus_warn(bus, devfn, fmt, arg...) pci_bus_printk(KERN_WARNING, (bus), devfn, fmt, ##arg)
+#define pci_bus_info(bus, devfn, fmt, arg...) pci_bus_printk(KERN_INFO, (bus), devfn, fmt, ##arg)
+
#endif /* LINUX_PCI_H */
--
2.34.1
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