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Date: Wed, 28 Aug 2019 19:51:20 +0200
From: Krzysztof Wilczynski <kw@...ux.com>
To: Bjorn Helgaas <helgaas@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] x86/PCI: Add missing log facility and move to use pr_ macros in pcbios.c
Add missing log facility where two instances of printk() that did not
use any (so it would be using MESSAGE_LOGLEVEL_DEFAULT set in Kconfig)
to make all the warnings in the arch/x86/pci/pcbios.c to be printed
consistently at the same log facility. Also resolve the following
checkpatch.pl script warning:
WARNING: printk() should include KERN_<LEVEL> facility level
While adding the missing log facility move over to using pr_ macros
over using printk(KERN_<level> ...) and DBG().
Signed-off-by: Krzysztof Wilczynski <kw@...ux.com>
---
Changes in v2:
Change wording and include checkpatch.pl script warning.
Leverage pr_fmt and remove "PCI: " prefix used throught.
Move to pr_debug() over using DBG() from arch/x86/include/asm/pci_x86.h.
arch/x86/pci/pcbios.c | 30 ++++++++++++++++--------------
1 file changed, 16 insertions(+), 14 deletions(-)
diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
index 9c97d814125e..ddcefb25c55e 100644
--- a/arch/x86/pci/pcbios.c
+++ b/arch/x86/pci/pcbios.c
@@ -3,6 +3,8 @@
* BIOS32 and PCI BIOS handling.
*/
+#define pr_fmt(fmt) "PCI: " fmt
+
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -47,7 +49,7 @@ static inline void set_bios_x(void)
pcibios_enabled = 1;
set_memory_x(PAGE_OFFSET + BIOS_BEGIN, (BIOS_END - BIOS_BEGIN) >> PAGE_SHIFT);
if (__supported_pte_mask & _PAGE_NX)
- printk(KERN_INFO "PCI: PCI BIOS area is rw and x. Use pci=nobios if you want it NX.\n");
+ pr_info("PCI BIOS area is rw and x. Use pci=nobios if you want it NX.\n");
}
/*
@@ -111,10 +113,10 @@ static unsigned long __init bios32_service(unsigned long service)
case 0:
return address + entry;
case 0x80: /* Not present */
- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
+ pr_warn("bios32_service(0x%lx): not present\n", service);
return 0;
default: /* Shouldn't happen */
- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
+ pr_warn("bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
service, return_code);
return 0;
}
@@ -160,14 +162,14 @@ static int __init check_pcibios(void)
minor_ver = ebx & 0xff;
if (pcibios_last_bus < 0)
pcibios_last_bus = ecx & 0xff;
- DBG("PCI: BIOS probe returned s=%02x hw=%02x ver=%02x.%02x l=%02x\n",
+ pr_debug("BIOS probe returned s=%02x hw=%02x ver=%02x.%02x l=%02x\n",
status, hw_mech, major_ver, minor_ver, pcibios_last_bus);
if (status || signature != PCI_SIGNATURE) {
- printk (KERN_ERR "PCI: BIOS BUG #%x[%08x] found\n",
+ pr_err("BIOS BUG #%x[%08x] found\n",
status, signature);
return 0;
}
- printk(KERN_INFO "PCI: PCI BIOS revision %x.%02x entry at 0x%lx, last bus=%d\n",
+ pr_info("PCI BIOS revision %x.%02x entry at 0x%lx, last bus=%d\n",
major_ver, minor_ver, pcibios_entry, pcibios_last_bus);
#ifdef CONFIG_PCI_DIRECT
if (!(hw_mech & PCIBIOS_HW_TYPE1))
@@ -316,18 +318,18 @@ static const struct pci_raw_ops *__init pci_find_bios(void)
if (sum != 0)
continue;
if (check->fields.revision != 0) {
- printk("PCI: unsupported BIOS32 revision %d at 0x%p\n",
+ pr_warn("unsupported BIOS32 revision %d at 0x%p\n",
check->fields.revision, check);
continue;
}
- DBG("PCI: BIOS32 Service Directory structure at 0x%p\n", check);
+ pr_debug("BIOS32 Service Directory structure at 0x%p\n", check);
if (check->fields.entry >= 0x100000) {
- printk("PCI: BIOS32 entry (0x%p) in high memory, "
+ pr_warn("BIOS32 entry (0x%p) in high memory, "
"cannot use.\n", check);
return NULL;
} else {
unsigned long bios32_entry = check->fields.entry;
- DBG("PCI: BIOS32 Service Directory entry at 0x%lx\n",
+ pr_debug("BIOS32 Service Directory entry at 0x%lx\n",
bios32_entry);
bios32_indirect.address = bios32_entry + PAGE_OFFSET;
set_bios_x();
@@ -366,7 +368,7 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
opt.size = PAGE_SIZE;
opt.segment = __KERNEL_DS;
- DBG("PCI: Fetching IRQ routing table... ");
+ pr_debug("Fetching IRQ routing table... ");
__asm__("push %%es\n\t"
"push %%ds\n\t"
"pop %%es\n\t"
@@ -384,9 +386,9 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
"S" (&pci_indirect),
"m" (opt)
: "memory");
- DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map);
+ pr_debug("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map);
if (ret & 0xff00)
- printk(KERN_ERR "PCI: Error %02x when fetching IRQ routing table.\n", (ret >> 8) & 0xff);
+ pr_err("Error %02x when fetching IRQ routing table.\n", (ret >> 8) & 0xff);
else if (opt.size) {
rt = kmalloc(sizeof(struct irq_routing_table) + opt.size, GFP_KERNEL);
if (rt) {
@@ -394,7 +396,7 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
rt->size = opt.size + sizeof(struct irq_routing_table);
rt->exclusive_irqs = map;
memcpy(rt->slots, (void *) page, opt.size);
- printk(KERN_INFO "PCI: Using BIOS Interrupt Routing Table\n");
+ pr_info("Using BIOS Interrupt Routing Table\n");
}
}
free_page(page);
--
2.22.1
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