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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-03 07:53:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-03 07:53:39 +0100 |
| commit | 44c94100b6fa83488337fe639eb7baba7dd93a91 (patch) | |
| tree | ffc60bdfe3a3f2f20359d2a7df8389f3ecf51d82 /arch/arm/kernel/ftrace.c | |
| parent | 77df6d8d7298fd3fae12a646fd368fdcdb86152c (diff) | |
| parent | 2595646791c319cadfdbf271563aac97d0843dc7 (diff) | |
| download | kernel_replicant_linux-44c94100b6fa83488337fe639eb7baba7dd93a91.tar.gz kernel_replicant_linux-44c94100b6fa83488337fe639eb7baba7dd93a91.tar.bz2 kernel_replicant_linux-44c94100b6fa83488337fe639eb7baba7dd93a91.zip | |
Merge 4.20-rc5 into usb-next
We need the USB fixes into usb-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm/kernel/ftrace.c')
| -rw-r--r-- | arch/arm/kernel/ftrace.c | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c index 0142fcfcc3d3..bda949fd84e8 100644 --- a/arch/arm/kernel/ftrace.c +++ b/arch/arm/kernel/ftrace.c @@ -183,9 +183,7 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr, unsigned long frame_pointer) { unsigned long return_hooker = (unsigned long) &return_to_handler; - struct ftrace_graph_ent trace; unsigned long old; - int err; if (unlikely(atomic_read(¤t->tracing_graph_pause))) return; @@ -193,21 +191,8 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr, old = *parent; *parent = return_hooker; - trace.func = self_addr; - trace.depth = current->curr_ret_stack + 1; - - /* Only trace if the calling function expects to */ - if (!ftrace_graph_entry(&trace)) { + if (function_graph_enter(old, self_addr, frame_pointer, NULL)) *parent = old; - return; - } - - err = ftrace_push_return_trace(old, self_addr, &trace.depth, - frame_pointer, NULL); - if (err == -EBUSY) { - *parent = old; - return; - } } #ifdef CONFIG_DYNAMIC_FTRACE |