From 29aaefa68f933110e577fbf3ca360c88331e5ff5 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Mon, 21 Sep 2009 19:28:54 +0000 Subject: [PATCH] ACPI: add debug for device addition Add debug output for adding an ACPI device. Enable this with "acpi.debug_layer=0x00010000" (ACPI_BUS_COMPONENT). Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown --- drivers/acpi/scan.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 408ebde18986..75b7c572ef45 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1230,6 +1230,7 @@ acpi_add_single_object(struct acpi_device **child, { int result = 0; struct acpi_device *device = NULL; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; if (!child) @@ -1355,9 +1356,16 @@ acpi_add_single_object(struct acpi_device **child, } end: - if (!result) + if (!result) { + acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Adding %s [%s] parent %s\n", dev_name(&device->dev), + (char *) buffer.pointer, + device->parent ? dev_name(&device->parent->dev) : + "(null)")); + kfree(buffer.pointer); *child = device; - else + } else acpi_device_release(&device->dev); return result;