linux-kernel - Re: [PATCH 3/6] acpi cleanup: Use pr_info() instead of printk() in arch/x86/mm/srat.c

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Date:	Fri, 16 Aug 2013 00:25:49 -0700
From:	Joe Perches <joe@...ches.com>
To:	Tang Chen <tangchen@...fujitsu.com>
Cc:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	lenb@...nel.org, rjw@...k.pl, liwanp@...ux.vnet.ibm.com,
	tj@...nel.org, akpm@...ux-foundation.org, x86@...nel.org,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH 3/6] acpi cleanup: Use pr_info() instead of printk() in
 arch/x86/mm/srat.c

On Fri, 2013-08-16 at 15:06 +0800, Tang Chen wrote:
> arch/x86/mm/srat.c

I think it'd be better to use pr_fmt
with the conversions to pr_info and pr_err.

pr_fmt can prefix the appropriate srat: and
so the format strings do not need it.

Something like:
---
 arch/x86/mm/srat.c | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index cdd0da9..350b4c5 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -9,6 +9,8 @@
  * are in one chunk. Holes between them will be included in the node.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/acpi.h>
 #include <linux/mmzone.h>
@@ -33,7 +35,7 @@ static __init int setup_node(int pxm)
 
 static __init void bad_srat(void)
 {
-	printk(KERN_ERR "SRAT: SRAT not used.\n");
+	pr_err("SRAT not used\n");
 	acpi_numa = -1;
 }
 
@@ -71,26 +73,25 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 	pxm = pa->proximity_domain;
 	apic_id = pa->apic_id;
 	if (!apic->apic_id_valid(apic_id)) {
-		printk(KERN_INFO "SRAT: PXM %u -> X2APIC 0x%04x ignored\n",
-			 pxm, apic_id);
+		pr_info("PXM %u -> X2APIC 0x%04x ignored\n", pxm, apic_id);
 		return;
 	}
 	node = setup_node(pxm);
 	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
+		pr_err("Too many proximity domains %x\n", pxm);
 		bad_srat();
 		return;
 	}
 
 	if (apic_id >= MAX_LOCAL_APIC) {
-		printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> Node %u skipped apicid that is too big\n", pxm, apic_id, node);
+		pr_info("PXM %u -> APIC 0x%04x -> Node %u skipped apicid that is too big\n",
+			pxm, apic_id, node);
 		return;
 	}
 	set_apicid_to_node(apic_id, node);
 	node_set(node, numa_nodes_parsed);
 	acpi_numa = 1;
-	printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> Node %u\n",
-	       pxm, apic_id, node);
+	pr_info("PXM %u -> APIC 0x%04x -> Node %u\n", pxm, apic_id, node);
 }
 
 /* Callback for Proximity Domain -> LAPIC mapping */
@@ -113,7 +114,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 		pxm |= *((unsigned int*)pa->proximity_domain_hi) << 8;
 	node = setup_node(pxm);
 	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
+		pr_err("Too many proximity domains %x\n", pxm);
 		bad_srat();
 		return;
 	}
@@ -124,15 +125,15 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 		apic_id = pa->apic_id;
 
 	if (apic_id >= MAX_LOCAL_APIC) {
-		printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%02x -> Node %u skipped apicid that is too big\n", pxm, apic_id, node);
+		pr_info("PXM %u -> APIC 0x%02x -> Node %u skipped apicid that is too big\n",
+			pxm, apic_id, node);
 		return;
 	}
 
 	set_apicid_to_node(apic_id, node);
 	node_set(node, numa_nodes_parsed);
 	acpi_numa = 1;
-	printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%02x -> Node %u\n",
-	       pxm, apic_id, node);
+	pr_info("PXM %u -> APIC 0x%02x -> Node %u\n", pxm, apic_id, node);
 }
 
 #ifdef CONFIG_MEMORY_HOTPLUG
@@ -165,7 +166,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 
 	node = setup_node(pxm);
 	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
+		pr_err("Too many proximity domains\n");
 		goto out_err_bad_srat;
 	}
 
@@ -174,9 +175,9 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 
 	node_set(node, numa_nodes_parsed);
 
-	printk(KERN_INFO "SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]\n",
-	       node, pxm,
-	       (unsigned long long) start, (unsigned long long) end - 1);
+	pr_info("Node %u PXM %u [mem %#010Lx-%#010Lx]\n",
+		node, pxm,
+		(unsigned long long) start, (unsigned long long) end - 1);
 
 	return 0;
 out_err_bad_srat:


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