From 7db4af43c97b68dc65394c799b86cdd0fffe5f8d Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 7 May 2019 17:37:53 -0500 Subject: [PATCH 1/3] PCI: Use dev_printk() when possible Use dev_printk() when possible. This makes messages more consistent with other device-related messages and, in some cases, adds useful information. Signed-off-by: Bjorn Helgaas --- drivers/pci/pci-sysfs.c | 3 +-- drivers/pci/quirks.c | 6 +++--- 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 25794c27c7a4..6d27475e39b2 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -1111,8 +1111,7 @@ legacy_io_err: kfree(b->legacy_io); b->legacy_io = NULL; kzalloc_err: - printk(KERN_WARNING "pci: warning: could not create legacy I/O port and ISA memory resources to sysfs\n"); - return; + dev_warn(&b->dev, "could not create legacy I/O port and ISA memory resources in sysfs\n"); } void pci_remove_legacy_files(struct pci_bus *b) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index a59ad09ce911..0f0f73ff9ee2 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -177,9 +177,9 @@ static int __init pci_apply_final_quirks(void) if (!tmp || cls == tmp) continue; - printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), using %u bytes\n", - cls << 2, tmp << 2, - pci_dfl_cache_line_size << 2); + pci_printk(KERN_DEBUG, dev, "CLS mismatch (%u != %u), using %u bytes\n", + cls << 2, tmp << 2, + pci_dfl_cache_line_size << 2); pci_cache_line_size = pci_dfl_cache_line_size; } } From 25da8dbaaf0679b3b22c783952a8392071cfa135 Mon Sep 17 00:00:00 2001 From: Mohan Kumar Date: Sat, 20 Apr 2019 07:03:46 +0300 Subject: [PATCH 2/3] PCI: Replace printk(KERN_INFO) with pr_info(), etc Replace printk() with pr_*() to be more consistent with other logging and avoid checkpatch warnings. Link: https://lore.kernel.org/lkml/1555733026-19609-1-git-send-email-mohankumar718@gmail.com Link: https://lore.kernel.org/lkml/1555733130-19804-1-git-send-email-mohankumar718@gmail.com Signed-off-by: Mohan Kumar [bhelgaas: squash in similar changes from second patch in series] Signed-off-by: Bjorn Helgaas --- drivers/pci/bus.c | 2 +- drivers/pci/pci-acpi.c | 11 ++++------- drivers/pci/pci-stub.c | 10 ++++------ drivers/pci/pci.c | 3 +-- drivers/pci/quirks.c | 2 +- drivers/pci/slot.c | 2 +- 6 files changed, 12 insertions(+), 18 deletions(-) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 5cb40b2518f9..2179a8baef52 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -23,7 +23,7 @@ void pci_add_resource_offset(struct list_head *resources, struct resource *res, entry = resource_list_create_entry(res, 0); if (!entry) { - printk(KERN_ERR "PCI: can't add host bridge window %pR\n", res); + pr_err("PCI: can't add host bridge window %pR\n", res); return; } diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index e1949f7efd9c..3ada0266974c 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -140,8 +140,7 @@ static acpi_status decode_type0_hpx_record(union acpi_object *record, hpx->t0->enable_perr = fields[5].integer.value; break; default: - printk(KERN_WARNING - "%s: Type 0 Revision %d record not supported\n", + pr_warn("%s: Type 0 Revision %d record not supported\n", __func__, revision); return AE_ERROR; } @@ -169,8 +168,7 @@ static acpi_status decode_type1_hpx_record(union acpi_object *record, hpx->t1->tot_max_split = fields[4].integer.value; break; default: - printk(KERN_WARNING - "%s: Type 1 Revision %d record not supported\n", + pr_warn("%s: Type 1 Revision %d record not supported\n", __func__, revision); return AE_ERROR; } @@ -211,8 +209,7 @@ static acpi_status decode_type2_hpx_record(union acpi_object *record, hpx->t2->sec_unc_err_mask_or = fields[17].integer.value; break; default: - printk(KERN_WARNING - "%s: Type 2 Revision %d record not supported\n", + pr_warn("%s: Type 2 Revision %d record not supported\n", __func__, revision); return AE_ERROR; } @@ -272,7 +269,7 @@ static acpi_status acpi_run_hpx(acpi_handle handle, struct hotplug_params *hpx) goto exit; break; default: - printk(KERN_ERR "%s: Type %d record not supported\n", + pr_err("%s: Type %d record not supported\n", __func__, type); status = AE_ERROR; goto exit; diff --git a/drivers/pci/pci-stub.c b/drivers/pci/pci-stub.c index 66f8a59fadbd..e408099fea52 100644 --- a/drivers/pci/pci-stub.c +++ b/drivers/pci/pci-stub.c @@ -66,20 +66,18 @@ static int __init pci_stub_init(void) &class, &class_mask); if (fields < 2) { - printk(KERN_WARNING - "pci-stub: invalid id string \"%s\"\n", id); + pr_warn("pci-stub: invalid ID string \"%s\"\n", id); continue; } - printk(KERN_INFO - "pci-stub: add %04X:%04X sub=%04X:%04X cls=%08X/%08X\n", + pr_info("pci-stub: add %04X:%04X sub=%04X:%04X cls=%08X/%08X\n", vendor, device, subvendor, subdevice, class, class_mask); rc = pci_add_dynid(&stub_driver, vendor, device, subvendor, subdevice, class, class_mask, 0); if (rc) - printk(KERN_WARNING - "pci-stub: failed to add dynamic id (%d)\n", rc); + pr_warn("pci-stub: failed to add dynamic ID (%d)\n", + rc); } return 0; diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 7c1b362f599a..225145ba4cf3 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -6265,8 +6265,7 @@ static int __init pci_setup(char *str) disable_acs_redir_param = kstrdup(str + 18, GFP_KERNEL); } else { - printk(KERN_ERR "PCI: Unknown option `%s'\n", - str); + pr_err("PCI: Unknown option `%s'\n", str); } } str = k; diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 0f0f73ff9ee2..8d1135ca330f 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2596,7 +2596,7 @@ static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev) pci_read_config_dword(dev, 0x74, &cfg); if (cfg & ((1 << 2) | (1 << 15))) { - printk(KERN_INFO "Rewriting IRQ routing register on MCP55\n"); + pr_info("Rewriting IRQ routing register on MCP55\n"); cfg &= ~((1 << 2) | (1 << 15)); pci_write_config_dword(dev, 0x74, cfg); } diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c index c46d5e1ff536..f4d92b1afe7b 100644 --- a/drivers/pci/slot.c +++ b/drivers/pci/slot.c @@ -403,7 +403,7 @@ static int pci_slot_init(void) pci_slots_kset = kset_create_and_add("slots", NULL, &pci_bus_kset->kobj); if (!pci_slots_kset) { - printk(KERN_ERR "PCI: Slot initialization failure\n"); + pr_err("PCI: Slot initialization failure\n"); return -ENOMEM; } return 0; From 34c6b7105e5a11174f856483cde8ad6e61b7236a Mon Sep 17 00:00:00 2001 From: Mohan Kumar Date: Sat, 20 Apr 2019 07:07:20 +0300 Subject: [PATCH 3/3] PCI: Replace dev_printk(KERN_DEBUG) with dev_info(), etc Replace dev_printk(KERN_DEBUG) with dev_info(), etc to be more consistent with other logging and avoid checkpatch warnings. The KERN_DEBUG messages could be converted to dev_dbg(), but that depends on CONFIG_DYNAMIC_DEBUG and DEBUG, and we want most of these messages to *always* be in the dmesg log. Link: https://lore.kernel.org/lkml/1555733240-19875-1-git-send-email-mohankumar718@gmail.com Signed-off-by: Mohan Kumar [bhelgaas: commit log] Signed-off-by: Bjorn Helgaas --- drivers/pci/bus.c | 3 +-- drivers/pci/pci.c | 14 +++++++------- drivers/pci/probe.c | 21 +++++++++------------ drivers/pci/quirks.c | 13 ++++++------- drivers/pci/setup-bus.c | 30 ++++++++++++++---------------- drivers/pci/xen-pcifront.c | 7 +++---- 6 files changed, 40 insertions(+), 48 deletions(-) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 2179a8baef52..495059d923f7 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -288,8 +288,7 @@ bool pci_bus_clip_resource(struct pci_dev *dev, int idx) res->end = end; res->flags &= ~IORESOURCE_UNSET; orig_res.flags &= ~IORESOURCE_UNSET; - pci_printk(KERN_DEBUG, dev, "%pR clipped to %pR\n", - &orig_res, res); + pci_info(dev, "%pR clipped to %pR\n", &orig_res, res); return true; } diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 225145ba4cf3..2d6d857a3d67 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2777,14 +2777,14 @@ void pci_pm_init(struct pci_dev *dev) dev->d2_support = true; if (dev->d1_support || dev->d2_support) - pci_printk(KERN_DEBUG, dev, "supports%s%s\n", + pci_info(dev, "supports%s%s\n", dev->d1_support ? " D1" : "", dev->d2_support ? " D2" : ""); } pmc &= PCI_PM_CAP_PME_MASK; if (pmc) { - pci_printk(KERN_DEBUG, dev, "PME# supported from%s%s%s%s%s\n", + pci_info(dev, "PME# supported from%s%s%s%s%s\n", (pmc & PCI_PM_CAP_PME_D0) ? " D0" : "", (pmc & PCI_PM_CAP_PME_D1) ? " D1" : "", (pmc & PCI_PM_CAP_PME_D2) ? " D2" : "", @@ -2952,16 +2952,16 @@ static int pci_ea_read(struct pci_dev *dev, int offset) res->flags = flags; if (bei <= PCI_EA_BEI_BAR5) - pci_printk(KERN_DEBUG, dev, "BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n", + pci_info(dev, "BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n", bei, res, prop); else if (bei == PCI_EA_BEI_ROM) - pci_printk(KERN_DEBUG, dev, "ROM: %pR (from Enhanced Allocation, properties %#02x)\n", + pci_info(dev, "ROM: %pR (from Enhanced Allocation, properties %#02x)\n", res, prop); else if (bei >= PCI_EA_BEI_VF_BAR0 && bei <= PCI_EA_BEI_VF_BAR5) - pci_printk(KERN_DEBUG, dev, "VF BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n", + pci_info(dev, "VF BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n", bei - PCI_EA_BEI_VF_BAR0, res, prop); else - pci_printk(KERN_DEBUG, dev, "BEI %d res: %pR (from Enhanced Allocation, properties %#02x)\n", + pci_info(dev, "BEI %d res: %pR (from Enhanced Allocation, properties %#02x)\n", bei, res, prop); out: @@ -4185,7 +4185,7 @@ int pci_set_cacheline_size(struct pci_dev *dev) if (cacheline_size == pci_cache_line_size) return 0; - pci_printk(KERN_DEBUG, dev, "cache line size of %d is not supported\n", + pci_info(dev, "cache line size of %d is not supported\n", pci_cache_line_size << 2); return -EINVAL; diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 2ec0df04e0dc..ac89f4d7a22a 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -317,7 +317,7 @@ fail: res->flags = 0; out: if (res->flags) - pci_printk(KERN_DEBUG, dev, "reg 0x%x: %pR\n", pos, res); + pci_info(dev, "reg 0x%x: %pR\n", pos, res); return (res->flags & IORESOURCE_MEM_64) ? 1 : 0; } @@ -435,7 +435,7 @@ static void pci_read_bridge_io(struct pci_bus *child) region.start = base; region.end = limit + io_granularity - 1; pcibios_bus_to_resource(dev->bus, res, ®ion); - pci_printk(KERN_DEBUG, dev, " bridge window %pR\n", res); + pci_info(dev, " bridge window %pR\n", res); } } @@ -457,7 +457,7 @@ static void pci_read_bridge_mmio(struct pci_bus *child) region.start = base; region.end = limit + 0xfffff; pcibios_bus_to_resource(dev->bus, res, ®ion); - pci_printk(KERN_DEBUG, dev, " bridge window %pR\n", res); + pci_info(dev, " bridge window %pR\n", res); } } @@ -510,7 +510,7 @@ static void pci_read_bridge_mmio_pref(struct pci_bus *child) region.start = base; region.end = limit + 0xfffff; pcibios_bus_to_resource(dev->bus, res, ®ion); - pci_printk(KERN_DEBUG, dev, " bridge window %pR\n", res); + pci_info(dev, " bridge window %pR\n", res); } } @@ -540,8 +540,7 @@ void pci_read_bridge_bases(struct pci_bus *child) if (res && res->flags) { pci_bus_add_resource(child, res, PCI_SUBTRACTIVE_DECODE); - pci_printk(KERN_DEBUG, dev, - " bridge window %pR (subtractive decode)\n", + pci_info(dev, " bridge window %pR (subtractive decode)\n", res); } } @@ -1690,7 +1689,7 @@ int pci_setup_device(struct pci_dev *dev) dev->revision = class & 0xff; dev->class = class >> 8; /* upper 3 bytes */ - pci_printk(KERN_DEBUG, dev, "[%04x:%04x] type %02x class %#08x\n", + pci_info(dev, "[%04x:%04x] type %02x class %#08x\n", dev->vendor, dev->device, dev->hdr_type, dev->class); if (pci_early_dump) @@ -3086,7 +3085,7 @@ int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int bus_max) conflict = request_resource_conflict(parent_res, res); if (conflict) - dev_printk(KERN_DEBUG, &b->dev, + dev_info(&b->dev, "busn_res: can not insert %pR under %s%pR (conflicts with %s %pR)\n", res, pci_is_root_bus(b) ? "domain " : "", parent_res, conflict->name, conflict); @@ -3106,8 +3105,7 @@ int pci_bus_update_busn_res_end(struct pci_bus *b, int bus_max) size = bus_max - res->start + 1; ret = adjust_resource(res, res->start, size); - dev_printk(KERN_DEBUG, &b->dev, - "busn_res: %pR end %s updated to %02x\n", + dev_info(&b->dev, "busn_res: %pR end %s updated to %02x\n", &old_res, ret ? "can not be" : "is", bus_max); if (!ret && !res->parent) @@ -3125,8 +3123,7 @@ void pci_bus_release_busn_res(struct pci_bus *b) return; ret = release_resource(res); - dev_printk(KERN_DEBUG, &b->dev, - "busn_res: %pR %s released\n", + dev_info(&b->dev, "busn_res: %pR %s released\n", res, ret ? "can not be" : "is"); } diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 8d1135ca330f..3f5a763addd3 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -159,8 +159,7 @@ static int __init pci_apply_final_quirks(void) u8 tmp; if (pci_cache_line_size) - printk(KERN_DEBUG "PCI: CLS %u bytes\n", - pci_cache_line_size << 2); + pr_info("PCI: CLS %u bytes\n", pci_cache_line_size << 2); pci_apply_fixup_final_quirks = true; for_each_pci_dev(dev) { @@ -177,16 +176,16 @@ static int __init pci_apply_final_quirks(void) if (!tmp || cls == tmp) continue; - pci_printk(KERN_DEBUG, dev, "CLS mismatch (%u != %u), using %u bytes\n", - cls << 2, tmp << 2, - pci_dfl_cache_line_size << 2); + pci_info(dev, "CLS mismatch (%u != %u), using %u bytes\n", + cls << 2, tmp << 2, + pci_dfl_cache_line_size << 2); pci_cache_line_size = pci_dfl_cache_line_size; } } if (!pci_cache_line_size) { - printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n", - cls << 2, pci_dfl_cache_line_size << 2); + pr_info("PCI: CLS %u bytes, default %u\n", cls << 2, + pci_dfl_cache_line_size << 2); pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size; } diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index ec44a0f3a7ac..c73e66725d05 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -255,10 +255,9 @@ static void reassign_resources_sorted(struct list_head *realloc_head, (IORESOURCE_STARTALIGN|IORESOURCE_SIZEALIGN); if (pci_reassign_resource(add_res->dev, idx, add_size, align)) - pci_printk(KERN_DEBUG, add_res->dev, - "failed to add %llx res[%d]=%pR\n", - (unsigned long long)add_size, - idx, res); + pci_info(add_res->dev, "failed to add %llx res[%d]=%pR\n", + (unsigned long long) add_size, idx, + res); } out: list_del(&add_res->list); @@ -918,9 +917,9 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size, if (size1 > size0 && realloc_head) { add_to_list(realloc_head, bus->self, b_res, size1-size0, min_align); - pci_printk(KERN_DEBUG, bus->self, "bridge window %pR to %pR add_size %llx\n", - b_res, &bus->busn_res, - (unsigned long long)size1-size0); + pci_info(bus->self, "bridge window %pR to %pR add_size %llx\n", + b_res, &bus->busn_res, + (unsigned long long) size1 - size0); } } @@ -1063,7 +1062,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, b_res->flags |= IORESOURCE_STARTALIGN; if (size1 > size0 && realloc_head) { add_to_list(realloc_head, bus->self, b_res, size1-size0, add_align); - pci_printk(KERN_DEBUG, bus->self, "bridge window %pR to %pR add_size %llx add_align %llx\n", + pci_info(bus->self, "bridge window %pR to %pR add_size %llx add_align %llx\n", b_res, &bus->busn_res, (unsigned long long) (size1 - size0), (unsigned long long) add_align); @@ -1531,8 +1530,8 @@ static void pci_bridge_release_resources(struct pci_bus *bus, release_child_resources(r); if (!release_resource(r)) { type = old_flags = r->flags & PCI_RES_TYPE_MASK; - pci_printk(KERN_DEBUG, dev, "resource %d %pR released\n", - PCI_BRIDGE_RESOURCES + idx, r); + pci_info(dev, "resource %d %pR released\n", + PCI_BRIDGE_RESOURCES + idx, r); /* keep the old size */ r->end = resource_size(r) - 1; r->start = 0; @@ -1596,7 +1595,7 @@ static void pci_bus_dump_res(struct pci_bus *bus) if (!res || !res->end || !res->flags) continue; - dev_printk(KERN_DEBUG, &bus->dev, "resource %d %pR\n", i, res); + dev_info(&bus->dev, "resource %d %pR\n", i, res); } } @@ -1730,9 +1729,8 @@ void pci_assign_unassigned_root_bus_resources(struct pci_bus *bus) int max_depth = pci_bus_get_depth(bus); pci_try_num = max_depth + 1; - dev_printk(KERN_DEBUG, &bus->dev, - "max bus depth: %d pci_try_num: %d\n", - max_depth, pci_try_num); + dev_info(&bus->dev, "max bus depth: %d pci_try_num: %d\n", + max_depth, pci_try_num); } again: @@ -1766,8 +1764,8 @@ again: goto dump; } - dev_printk(KERN_DEBUG, &bus->dev, - "No. %d try to assign unassigned res\n", tried_times + 1); + dev_info(&bus->dev, "No. %d try to assign unassigned res\n", + tried_times + 1); /* third times and later will not check if it is leaf */ if ((tried_times + 1) > 2) diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index eba6e33147a2..fbd8d9f54d6a 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -291,8 +291,7 @@ static int pci_frontend_enable_msix(struct pci_dev *dev, vector[i] = op.msix_entries[i].vector; } } else { - printk(KERN_DEBUG "enable msix get value %x\n", - op.value); + pr_info("enable msix get value %x\n", op.value); err = op.value; } } else { @@ -364,12 +363,12 @@ static void pci_frontend_disable_msi(struct pci_dev *dev) err = do_pci_op(pdev, &op); if (err == XEN_PCI_ERR_dev_not_found) { /* XXX No response from backend, what shall we do? */ - printk(KERN_DEBUG "get no response from backend for disable MSI\n"); + pr_info("get no response from backend for disable MSI\n"); return; } if (err) /* how can pciback notify us fail? */ - printk(KERN_DEBUG "get fake response frombackend\n"); + pr_info("get fake response from backend\n"); } static struct xen_pci_frontend_ops pci_frontend_ops = {