Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index c7c96bc..c604091 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -37,6 +37,8 @@
#include <linux/device.h>
#include <linux/netdevice.h>
+#include <rdma/ib_verbs.h>
+
extern struct _ddebug __start___verbose[];
extern struct _ddebug __stop___verbose[];
@@ -188,7 +190,7 @@
newflags = (dp->flags & mask) | flags;
if (newflags == dp->flags)
continue;
-#ifdef HAVE_JUMP_LABEL
+#ifdef CONFIG_JUMP_LABEL
if (dp->flags & _DPRINTK_FLAGS_PRINT) {
if (!(flags & _DPRINTK_FLAGS_PRINT))
static_branch_disable(&dp->key.dd_key_true);
@@ -636,6 +638,41 @@
#endif
+#if IS_ENABLED(CONFIG_INFINIBAND)
+
+void __dynamic_ibdev_dbg(struct _ddebug *descriptor,
+ const struct ib_device *ibdev, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ if (ibdev && ibdev->dev.parent) {
+ char buf[PREFIX_SIZE];
+
+ dev_printk_emit(LOGLEVEL_DEBUG, ibdev->dev.parent,
+ "%s%s %s %s: %pV",
+ dynamic_emit_prefix(descriptor, buf),
+ dev_driver_string(ibdev->dev.parent),
+ dev_name(ibdev->dev.parent),
+ dev_name(&ibdev->dev),
+ &vaf);
+ } else if (ibdev) {
+ printk(KERN_DEBUG "%s: %pV", dev_name(&ibdev->dev), &vaf);
+ } else {
+ printk(KERN_DEBUG "(NULL ib_device): %pV", &vaf);
+ }
+
+ va_end(args);
+}
+EXPORT_SYMBOL(__dynamic_ibdev_dbg);
+
+#endif
+
#define DDEBUG_STRING_SIZE 1024
static __initdata char ddebug_setup_string[DDEBUG_STRING_SIZE];
@@ -847,17 +884,19 @@
const char *name)
{
struct ddebug_table *dt;
- const char *new_name;
dt = kzalloc(sizeof(*dt), GFP_KERNEL);
- if (dt == NULL)
- return -ENOMEM;
- new_name = kstrdup_const(name, GFP_KERNEL);
- if (new_name == NULL) {
- kfree(dt);
+ if (dt == NULL) {
+ pr_err("error adding module: %s\n", name);
return -ENOMEM;
}
- dt->mod_name = new_name;
+ /*
+ * For built-in modules, name lives in .rodata and is
+ * immortal. For loaded modules, name points at the name[]
+ * member of struct module, which lives at least as long as
+ * this struct ddebug_table.
+ */
+ dt->mod_name = name;
dt->num_ddebugs = n;
dt->ddebugs = tab;
@@ -868,7 +907,6 @@
vpr_info("%u debug prints in module %s\n", n, dt->mod_name);
return 0;
}
-EXPORT_SYMBOL_GPL(ddebug_add_module);
/* helper for ddebug_dyndbg_(boot|module)_param_cb */
static int ddebug_dyndbg_param_cb(char *param, char *val,
@@ -913,7 +951,6 @@
static void ddebug_table_free(struct ddebug_table *dt)
{
list_del_init(&dt->link);
- kfree_const(dt->mod_name);
kfree(dt);
}
@@ -930,15 +967,15 @@
mutex_lock(&ddebug_lock);
list_for_each_entry_safe(dt, nextdt, &ddebug_tables, link) {
- if (!strcmp(dt->mod_name, mod_name)) {
+ if (dt->mod_name == mod_name) {
ddebug_table_free(dt);
ret = 0;
+ break;
}
}
mutex_unlock(&ddebug_lock);
return ret;
}
-EXPORT_SYMBOL_GPL(ddebug_remove_module);
static void ddebug_remove_all_tables(void)
{
@@ -956,20 +993,14 @@
static int __init dynamic_debug_init_debugfs(void)
{
- struct dentry *dir, *file;
+ struct dentry *dir;
if (!ddebug_init_success)
return -ENODEV;
dir = debugfs_create_dir("dynamic_debug", NULL);
- if (!dir)
- return -ENOMEM;
- file = debugfs_create_file("control", 0644, dir, NULL,
- &ddebug_proc_fops);
- if (!file) {
- debugfs_remove(dir);
- return -ENOMEM;
- }
+ debugfs_create_file("control", 0644, dir, NULL, &ddebug_proc_fops);
+
return 0;
}