nathan/Chromebook-Device-Nyan-NVIDIA-Tegra-K1-T124-Upstream-Linux-3.10-LTS-Kernel
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Updated from Linux LTS 3.10.21 to 3.10.22

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This commit is contained in:
Nathan
2025-04-07 10:16:56 -05:00
parent 8de512f759
commit fb417c8ab5
200 changed files with 2126 additions and 770 deletions
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64
kernel/trace/ftrace.c
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@@ -367,9 +367,6 @@ static int remove_ftrace_list_ops(struct ftrace_ops **list,
static int __register_ftrace_function(struct ftrace_ops *ops)
{
if (unlikely(ftrace_disabled))
return -ENODEV;
if (FTRACE_WARN_ON(ops == &global_ops))
return -EINVAL;
@@ -417,9 +414,6 @@ static int __unregister_ftrace_function(struct ftrace_ops *ops)
{
int ret;
if (ftrace_disabled)
return -ENODEV;
if (WARN_ON(!(ops->flags & FTRACE_OPS_FL_ENABLED)))
return -EBUSY;
@@ -2048,10 +2042,15 @@ static void ftrace_startup_enable(int command)
static int ftrace_startup(struct ftrace_ops *ops, int command)
{
bool hash_enable = true;
int ret;
if (unlikely(ftrace_disabled))
return -ENODEV;
ret = __register_ftrace_function(ops);
if (ret)
return ret;
ftrace_start_up++;
command |= FTRACE_UPDATE_CALLS;
@@ -2073,12 +2072,17 @@ static int ftrace_startup(struct ftrace_ops *ops, int command)
return 0;
}
static void ftrace_shutdown(struct ftrace_ops *ops, int command)
static int ftrace_shutdown(struct ftrace_ops *ops, int command)
{
bool hash_disable = true;
int ret;
if (unlikely(ftrace_disabled))
return;
return -ENODEV;
ret = __unregister_ftrace_function(ops);
if (ret)
return ret;
ftrace_start_up--;
/*
@@ -2113,9 +2117,10 @@ static void ftrace_shutdown(struct ftrace_ops *ops, int command)
}
if (!command || !ftrace_enabled)
return;
return 0;
ftrace_run_update_code(command);
return 0;
}
static void ftrace_startup_sysctl(void)
@@ -3020,16 +3025,13 @@ static void __enable_ftrace_function_probe(void)
if (i == FTRACE_FUNC_HASHSIZE)
return;
ret = __register_ftrace_function(&trace_probe_ops);
if (!ret)
ret = ftrace_startup(&trace_probe_ops, 0);
ret = ftrace_startup(&trace_probe_ops, 0);
ftrace_probe_registered = 1;
}
static void __disable_ftrace_function_probe(void)
{
int ret;
int i;
if (!ftrace_probe_registered)
@@ -3042,9 +3044,7 @@ static void __disable_ftrace_function_probe(void)
}
/* no more funcs left */
ret = __unregister_ftrace_function(&trace_probe_ops);
if (!ret)
ftrace_shutdown(&trace_probe_ops, 0);
ftrace_shutdown(&trace_probe_ops, 0);
ftrace_probe_registered = 0;
}
@@ -4241,12 +4241,15 @@ core_initcall(ftrace_nodyn_init);
static inline int ftrace_init_dyn_debugfs(struct dentry *d_tracer) { return 0; }
static inline void ftrace_startup_enable(int command) { }
/* Keep as macros so we do not need to define the commands */
# define ftrace_startup(ops, command) \
({ \
(ops)->flags |= FTRACE_OPS_FL_ENABLED; \
0; \
# define ftrace_startup(ops, command) \
({ \
int ___ret = __register_ftrace_function(ops); \
if (!___ret) \
(ops)->flags |= FTRACE_OPS_FL_ENABLED; \
___ret; \
})
# define ftrace_shutdown(ops, command) do { } while (0)
# define ftrace_shutdown(ops, command) __unregister_ftrace_function(ops)
# define ftrace_startup_sysctl() do { } while (0)
# define ftrace_shutdown_sysctl() do { } while (0)
@@ -4646,9 +4649,7 @@ int register_ftrace_function(struct ftrace_ops *ops)
mutex_lock(&ftrace_lock);
ret = __register_ftrace_function(ops);
if (!ret)
ret = ftrace_startup(ops, 0);
ret = ftrace_startup(ops, 0);
mutex_unlock(&ftrace_lock);
@@ -4667,9 +4668,7 @@ int unregister_ftrace_function(struct ftrace_ops *ops)
int ret;
mutex_lock(&ftrace_lock);
ret = __unregister_ftrace_function(ops);
if (!ret)
ftrace_shutdown(ops, 0);
ret = ftrace_shutdown(ops, 0);
mutex_unlock(&ftrace_lock);
return ret;
@@ -4863,6 +4862,13 @@ ftrace_suspend_notifier_call(struct notifier_block *bl, unsigned long state,
return NOTIFY_DONE;
}
/* Just a place holder for function graph */
static struct ftrace_ops fgraph_ops __read_mostly = {
.func = ftrace_stub,
.flags = FTRACE_OPS_FL_STUB | FTRACE_OPS_FL_GLOBAL |
FTRACE_OPS_FL_RECURSION_SAFE,
};
int register_ftrace_graph(trace_func_graph_ret_t retfunc,
trace_func_graph_ent_t entryfunc)
{
@@ -4889,7 +4895,7 @@ int register_ftrace_graph(trace_func_graph_ret_t retfunc,
ftrace_graph_return = retfunc;
ftrace_graph_entry = entryfunc;
ret = ftrace_startup(&global_ops, FTRACE_START_FUNC_RET);
ret = ftrace_startup(&fgraph_ops, FTRACE_START_FUNC_RET);
out:
mutex_unlock(&ftrace_lock);
@@ -4906,7 +4912,7 @@ void unregister_ftrace_graph(void)
ftrace_graph_active--;
ftrace_graph_return = (trace_func_graph_ret_t)ftrace_stub;
ftrace_graph_entry = ftrace_graph_entry_stub;
ftrace_shutdown(&global_ops, FTRACE_STOP_FUNC_RET);
ftrace_shutdown(&fgraph_ops, FTRACE_STOP_FUNC_RET);
unregister_pm_notifier(&ftrace_suspend_notifier);
unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);