Pull ia64-clocksource into release branch

[pandora-kernel.git] / kernel / ksysfs.c

diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index 9e28478..2565e1b 100644 (file)
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -8,7 +8,6 @@
  *
  */
 
-#include <linux/config.h>
 #include <linux/kobject.h>
 #include <linux/string.h>
 #include <linux/sysfs.h>
@@ -25,18 +24,18 @@ static struct subsys_attribute _name##_attr = \
 
 #if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
 /* current uevent sequence number */
-static ssize_t uevent_seqnum_show(struct subsystem *subsys, char *page)
+static ssize_t uevent_seqnum_show(struct kset *kset, char *page)
 {
        return sprintf(page, "%llu\n", (unsigned long long)uevent_seqnum);
 }
 KERNEL_ATTR_RO(uevent_seqnum);
 
 /* uevent helper program, used during early boo */
-static ssize_t uevent_helper_show(struct subsystem *subsys, char *page)
+static ssize_t uevent_helper_show(struct kset *kset, char *page)
 {
        return sprintf(page, "%s\n", uevent_helper);
 }
-static ssize_t uevent_helper_store(struct subsystem *subsys, const char *page, size_t count)
+static ssize_t uevent_helper_store(struct kset *kset, const char *page, size_t count)
 {
        if (count+1 > UEVENT_HELPER_PATH_LEN)
                return -ENOENT;
@@ -50,19 +49,41 @@ KERNEL_ATTR_RW(uevent_helper);
 #endif
 
 #ifdef CONFIG_KEXEC
-static ssize_t kexec_loaded_show(struct subsystem *subsys, char *page)
+static ssize_t kexec_loaded_show(struct kset *kset, char *page)
 {
        return sprintf(page, "%d\n", !!kexec_image);
 }
 KERNEL_ATTR_RO(kexec_loaded);
 
-static ssize_t kexec_crash_loaded_show(struct subsystem *subsys, char *page)
+static ssize_t kexec_crash_loaded_show(struct kset *kset, char *page)
 {
        return sprintf(page, "%d\n", !!kexec_crash_image);
 }
 KERNEL_ATTR_RO(kexec_crash_loaded);
 #endif /* CONFIG_KEXEC */
 
+/*
+ * Make /sys/kernel/notes give the raw contents of our kernel .notes section.
+ */
+extern const char __start_notes __attribute__((weak));
+extern const char __stop_notes __attribute__((weak));
+#define        notes_size (&__stop_notes - &__start_notes)
+
+static ssize_t notes_read(struct kobject *kobj, struct bin_attribute *bin_attr,
+                         char *buf, loff_t off, size_t count)
+{
+       memcpy(buf, &__start_notes + off, count);
+       return count;
+}
+
+static struct bin_attribute notes_attr = {
+       .attr = {
+               .name = "notes",
+               .mode = S_IRUGO,
+       },
+       .read = &notes_read,
+};
+
 decl_subsys(kernel, NULL, NULL);
 EXPORT_SYMBOL_GPL(kernel_subsys);
 
@@ -86,9 +107,15 @@ static int __init ksysfs_init(void)
 {
        int error = subsystem_register(&kernel_subsys);
        if (!error)
-               error = sysfs_create_group(&kernel_subsys.kset.kobj,
+               error = sysfs_create_group(&kernel_subsys.kobj,
                                           &kernel_attr_group);
 
+       if (!error && notes_size > 0) {
+               notes_attr.size = notes_size;
+               error = sysfs_create_bin_file(&kernel_subsys.kobj,
+                                             &notes_attr);
+       }
+
        return error;
 }