linux-kernel - [PATCH 08/12] ACPI: processor: refactor internal map_lapic

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Message-ID: <20100125214119.28510.84191.stgit@bob.kio>
Date:	Mon, 25 Jan 2010 14:41:19 -0700
From:	Alex Chiang <achiang@...com>
To:	lenb@...nel.org
Cc:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>
Subject: [PATCH 08/12] ACPI: processor: refactor internal map_lapic_id()

Untangle the if() statement a little for readability.

Cc: Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>
Signed-off-by: Alex Chiang <achiang@...com>
---

 drivers/acpi/processor_core.c |   15 +++++++++------
 1 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 1fc06c6..bebd411 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -50,12 +50,15 @@ static int map_lapic_id(struct acpi_subtable_header *entry,
 {
 	struct acpi_madt_local_apic *lapic =
 		(struct acpi_madt_local_apic *)entry;
-	if ((lapic->lapic_flags & ACPI_MADT_ENABLED) &&
-	    lapic->processor_id == acpi_id) {
-		*apic_id = lapic->id;
-		return 1;
-	}
-	return 0;
+
+	if (!(lapic->lapic_flags & ACPI_MADT_ENABLED))
+		return 0;
+
+	if (lapic->processor_id != acpi_id)
+		return 0;
+
+	*apic_id = lapic->id;
+	return 1;
 }
 
 static int map_x2apic_id(struct acpi_subtable_header *entry,

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