Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 2fd8006..4cf02ec 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -2,7 +2,7 @@
#ifndef _DYNAMIC_DEBUG_H
#define _DYNAMIC_DEBUG_H
-#if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
+#if defined(CONFIG_JUMP_LABEL)
#include <linux/jump_label.h>
#endif
@@ -38,7 +38,7 @@
#define _DPRINTK_FLAGS_DEFAULT 0
#endif
unsigned int flags:8;
-#ifdef HAVE_JUMP_LABEL
+#ifdef CONFIG_JUMP_LABEL
union {
struct static_key_true dd_key_true;
struct static_key_false dd_key_false;
@@ -47,10 +47,10 @@
} __attribute__((aligned(8)));
-int ddebug_add_module(struct _ddebug *tab, unsigned int n,
- const char *modname);
#if defined(CONFIG_DYNAMIC_DEBUG)
+int ddebug_add_module(struct _ddebug *tab, unsigned int n,
+ const char *modname);
extern int ddebug_remove_module(const char *mod_name);
extern __printf(2, 3)
void __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...);
@@ -71,7 +71,14 @@
const struct net_device *dev,
const char *fmt, ...);
-#define DEFINE_DYNAMIC_DEBUG_METADATA_KEY(name, fmt, key, init) \
+struct ib_device;
+
+extern __printf(3, 4)
+void __dynamic_ibdev_dbg(struct _ddebug *descriptor,
+ const struct ib_device *ibdev,
+ const char *fmt, ...);
+
+#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \
static struct _ddebug __aligned(8) \
__attribute__((section("__verbose"))) name = { \
.modname = KBUILD_MODNAME, \
@@ -80,35 +87,27 @@
.format = (fmt), \
.lineno = __LINE__, \
.flags = _DPRINTK_FLAGS_DEFAULT, \
- dd_key_init(key, init) \
+ _DPRINTK_KEY_INIT \
}
-#ifdef HAVE_JUMP_LABEL
-
-#define dd_key_init(key, init) key = (init)
+#ifdef CONFIG_JUMP_LABEL
#ifdef DEBUG
-#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \
- DEFINE_DYNAMIC_DEBUG_METADATA_KEY(name, fmt, .key.dd_key_true, \
- (STATIC_KEY_TRUE_INIT))
+
+#define _DPRINTK_KEY_INIT .key.dd_key_true = (STATIC_KEY_TRUE_INIT)
#define DYNAMIC_DEBUG_BRANCH(descriptor) \
static_branch_likely(&descriptor.key.dd_key_true)
#else
-#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \
- DEFINE_DYNAMIC_DEBUG_METADATA_KEY(name, fmt, .key.dd_key_false, \
- (STATIC_KEY_FALSE_INIT))
+#define _DPRINTK_KEY_INIT .key.dd_key_false = (STATIC_KEY_FALSE_INIT)
#define DYNAMIC_DEBUG_BRANCH(descriptor) \
static_branch_unlikely(&descriptor.key.dd_key_false)
#endif
-#else
+#else /* !HAVE_JUMP_LABEL */
-#define dd_key_init(key, init)
-
-#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \
- DEFINE_DYNAMIC_DEBUG_METADATA_KEY(name, fmt, 0, 0)
+#define _DPRINTK_KEY_INIT
#ifdef DEBUG
#define DYNAMIC_DEBUG_BRANCH(descriptor) \
@@ -120,46 +119,70 @@
#endif
-#define dynamic_pr_debug(fmt, ...) \
-do { \
- DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
- if (DYNAMIC_DEBUG_BRANCH(descriptor)) \
- __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
- ##__VA_ARGS__); \
+#define __dynamic_func_call(id, fmt, func, ...) do { \
+ DEFINE_DYNAMIC_DEBUG_METADATA(id, fmt); \
+ if (DYNAMIC_DEBUG_BRANCH(id)) \
+ func(&id, ##__VA_ARGS__); \
} while (0)
+#define __dynamic_func_call_no_desc(id, fmt, func, ...) do { \
+ DEFINE_DYNAMIC_DEBUG_METADATA(id, fmt); \
+ if (DYNAMIC_DEBUG_BRANCH(id)) \
+ func(__VA_ARGS__); \
+} while (0)
+
+/*
+ * "Factory macro" for generating a call to func, guarded by a
+ * DYNAMIC_DEBUG_BRANCH. The dynamic debug decriptor will be
+ * initialized using the fmt argument. The function will be called with
+ * the address of the descriptor as first argument, followed by all
+ * the varargs. Note that fmt is repeated in invocations of this
+ * macro.
+ */
+#define _dynamic_func_call(fmt, func, ...) \
+ __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__)
+/*
+ * A variant that does the same, except that the descriptor is not
+ * passed as the first argument to the function; it is only called
+ * with precisely the macro's varargs.
+ */
+#define _dynamic_func_call_no_desc(fmt, func, ...) \
+ __dynamic_func_call_no_desc(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__)
+
+#define dynamic_pr_debug(fmt, ...) \
+ _dynamic_func_call(fmt, __dynamic_pr_debug, \
+ pr_fmt(fmt), ##__VA_ARGS__)
+
#define dynamic_dev_dbg(dev, fmt, ...) \
-do { \
- DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
- if (DYNAMIC_DEBUG_BRANCH(descriptor)) \
- __dynamic_dev_dbg(&descriptor, dev, fmt, \
- ##__VA_ARGS__); \
-} while (0)
+ _dynamic_func_call(fmt,__dynamic_dev_dbg, \
+ dev, fmt, ##__VA_ARGS__)
#define dynamic_netdev_dbg(dev, fmt, ...) \
-do { \
- DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
- if (DYNAMIC_DEBUG_BRANCH(descriptor)) \
- __dynamic_netdev_dbg(&descriptor, dev, fmt, \
- ##__VA_ARGS__); \
-} while (0)
+ _dynamic_func_call(fmt, __dynamic_netdev_dbg, \
+ dev, fmt, ##__VA_ARGS__)
-#define dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
- groupsize, buf, len, ascii) \
-do { \
- DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, \
- __builtin_constant_p(prefix_str) ? prefix_str : "hexdump");\
- if (DYNAMIC_DEBUG_BRANCH(descriptor)) \
- print_hex_dump(KERN_DEBUG, prefix_str, \
- prefix_type, rowsize, groupsize, \
- buf, len, ascii); \
-} while (0)
+#define dynamic_ibdev_dbg(dev, fmt, ...) \
+ _dynamic_func_call(fmt, __dynamic_ibdev_dbg, \
+ dev, fmt, ##__VA_ARGS__)
+
+#define dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
+ groupsize, buf, len, ascii) \
+ _dynamic_func_call_no_desc(__builtin_constant_p(prefix_str) ? prefix_str : "hexdump", \
+ print_hex_dump, \
+ KERN_DEBUG, prefix_str, prefix_type, \
+ rowsize, groupsize, buf, len, ascii)
#else
#include <linux/string.h>
#include <linux/errno.h>
+static inline int ddebug_add_module(struct _ddebug *tab, unsigned int n,
+ const char *modname)
+{
+ return 0;
+}
+
static inline int ddebug_remove_module(const char *mod)
{
return 0;
@@ -181,6 +204,12 @@
do { if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); } while (0)
#define dynamic_dev_dbg(dev, fmt, ...) \
do { if (0) dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); } while (0)
+#define dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
+ groupsize, buf, len, ascii) \
+ do { if (0) \
+ print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, \
+ rowsize, groupsize, buf, len, ascii); \
+ } while (0)
#endif
#endif