x86: align x86 arch with generic CPU modalias handling

The x86 CPU feature modalias handling existed before it was reimplemented
generically. This patch aligns the x86 handling so that it
(a) reuses some more code that is now generic;
(b) uses the generic format for the modalias module metadata entry, i.e., it
    now uses 'cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:,XXXX,YYYY' instead of
    the 'x86cpu:vendor:VVVV:family:FFFF:model:MMMM:feature:,XXXX,YYYY' that was
    used before.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 3 insertions, 12 deletions

diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 3f0d3732df7f..8fa8deab6449 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -185,13 +185,8 @@ config GENERIC_CPU_DEVICES
         bool
         default n
 
-config HAVE_CPU_AUTOPROBE
-        def_bool ARCH_HAS_CPU_AUTOPROBE
-
 config GENERIC_CPU_AUTOPROBE
         bool
-        depends on !ARCH_HAS_CPU_AUTOPROBE
-        select HAVE_CPU_AUTOPROBE
 
 config SOC_BUS
         bool
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 8a38bf8c792f..006b1bc5297d 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -287,7 +287,6 @@ static void cpu_device_release(struct device *dev)
          */
 }
 
-#ifdef CONFIG_HAVE_CPU_AUTOPROBE
 #ifdef CONFIG_GENERIC_CPU_AUTOPROBE
 static ssize_t print_cpu_modalias(struct device *dev,
                                   struct device_attribute *attr,
@@ -310,9 +309,6 @@ static ssize_t print_cpu_modalias(struct device *dev,
         buf[n++] = '\n';
         return n;
 }
-#else
-#define print_cpu_modalias      arch_print_cpu_modalias
-#endif
 
 static int cpu_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
@@ -346,7 +342,7 @@ int register_cpu(struct cpu *cpu, int num)
         cpu->dev.offline_disabled = !cpu->hotpluggable;
         cpu->dev.offline = !cpu_online(num);
         cpu->dev.of_node = of_get_cpu_node(num, NULL);
-#ifdef CONFIG_HAVE_CPU_AUTOPROBE
+#ifdef CONFIG_GENERIC_CPU_AUTOPROBE
         cpu->dev.bus->uevent = cpu_uevent;
 #endif
         cpu->dev.groups = common_cpu_attr_groups;
@@ -370,7 +366,7 @@ struct device *get_cpu_device(unsigned cpu)
 }
 EXPORT_SYMBOL_GPL(get_cpu_device);
 
-#ifdef CONFIG_HAVE_CPU_AUTOPROBE
+#ifdef CONFIG_GENERIC_CPU_AUTOPROBE
 static DEVICE_ATTR(modalias, 0444, print_cpu_modalias, NULL);
 #endif
 
@@ -384,7 +380,7 @@ static struct attribute *cpu_root_attrs[] = {
         &cpu_attrs[2].attr.attr,
         &dev_attr_kernel_max.attr,
         &dev_attr_offline.attr,
-#ifdef CONFIG_HAVE_CPU_AUTOPROBE
+#ifdef CONFIG_GENERIC_CPU_AUTOPROBE
         &dev_attr_modalias.attr,
 #endif
         NULL