ACPI / PCI: pci_slot: Use generic pr_debug utility

Remove the dbg macro and debug module parameter and use
the generic kernel facility.

Trivially reduces defconfig object size on x86-64

$ size drivers/acpi/pci_slot.o*
   text	   data	    bss	    dec	    hex	filename
    880	    752	      4	   1636	    664	drivers/acpi/pci_slot.o.new
    935	    752	      5	   1692	    69c	drivers/acpi/pci_slot.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 7 insertions, 14 deletions

diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index aa8f4c72b687..1236fb04a708 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -35,7 +35,6 @@
 #include <linux/dmi.h>
 #include <linux/pci-acpi.h>
 
-static bool debug;
 static int check_sta_before_sun;
 
 #define DRIVER_VERSION  "0.1"
@@ -44,18 +43,10 @@ static int check_sta_before_sun;
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-MODULE_PARM_DESC(debug, "Debugging mode enabled or not");
-module_param(debug, bool, 0644);
 
 #define _COMPONENT              ACPI_PCI_COMPONENT
 ACPI_MODULE_NAME("pci_slot");
 
-#define dbg(fmt, ...)                                           \
-do {                                                            \
-        if (debug)                                              \
-                pr_debug(fmt, ##__VA_ARGS__);                   \
-} while (0)
-
 #define SLOT_NAME_SIZE 21               /* Inspired by #define in acpiphp.h */
 
 struct acpi_pci_slot {
@@ -75,7 +66,7 @@ check_slot(acpi_handle handle, unsigned long long *sun)
         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 
         acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
-        dbg("Checking slot on path: %s\n", (char *)buffer.pointer);
+        pr_debug("Checking slot on path: %s\n", (char *)buffer.pointer);
 
         if (check_sta_before_sun) {
                 /* If SxFy doesn't have _STA, we just assume it's there */
@@ -86,14 +77,16 @@ check_slot(acpi_handle handle, unsigned long long *sun)
 
         status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
         if (ACPI_FAILURE(status)) {
-                dbg("_ADR returned %d on %s\n", status, (char *)buffer.pointer);
+                pr_debug("_ADR returned %d on %s\n",
+                         status, (char *)buffer.pointer);
                 goto out;
         }
 
         /* No _SUN == not a slot == bail */
         status = acpi_evaluate_integer(handle, "_SUN", NULL, sun);
         if (ACPI_FAILURE(status)) {
-                dbg("_SUN returned %d on %s\n", status, (char *)buffer.pointer);
+                pr_debug("_SUN returned %d on %s\n",
+                         status, (char *)buffer.pointer);
                 goto out;
         }
 
@@ -147,8 +140,8 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
 
         get_device(&pci_bus->dev);
 
-        dbg("%p, pci_bus: %x, device: %d, name: %s\n",
-            pci_slot, pci_bus->number, device, name);
+        pr_debug("%p, pci_bus: %x, device: %d, name: %s\n",
+                 pci_slot, pci_bus->number, device, name);
 
         return AE_OK;
 }