X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=wrapper%2Fgenhd.h;h=7559faaedd2e3fa52f9a288746e58c859c99262c;hb=93607d62a1d7ff9a1912c2a97626a778ae789084;hp=4eac2c1a14c62ed74a316a98ff4228f4478352da;hpb=3bcb1fb34fc8904413476afd87afbdeab3806e56;p=lttng-modules.git

diff --git a/wrapper/genhd.h b/wrapper/genhd.h
index 4eac2c1a..7559faae 100644
--- a/wrapper/genhd.h
+++ b/wrapper/genhd.h
@@ -14,6 +14,12 @@
 
 #include <linux/genhd.h>
 
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,17,0))
+#define LTTNG_GENHD_FL_HIDDEN GENHD_FL_HIDDEN
+#else
+#define LTTNG_GENHD_FL_HIDDEN GENHD_FL_SUPPRESS_PARTITION_INFO
+#endif
+
 #ifdef CONFIG_KALLSYMS_ALL
 
 #include <linux/kallsyms.h>
@@ -32,6 +38,19 @@ struct class *wrapper_get_block_class(void)
 	return ptr_block_class;
 }
 
+/*
+ * Canary function to check for 'block_class' at compile time.
+ *
+ * From 'include/linux/genhd.h':
+ *
+ *   extern struct class block_class;
+ */
+static inline
+struct class *__canary__get_block_class(void)
+{
+	return &block_class;
+}
+
 static inline
 struct device_type *wrapper_get_disk_type(void)
 {
@@ -45,6 +64,16 @@ struct device_type *wrapper_get_disk_type(void)
 	return ptr_disk_type;
 }
 
+/*
+ * No canary for 'disk_type', it's only defined in 'block/genhd.c'.
+ *
+ * static inline
+ * struct device_type *__canary__get_disk_type(void)
+ * {
+ * 	return &disk_type;
+ * }
+ */
+
 #else
 
 static inline