diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2020-11-13 14:42:21 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2020-11-20 18:53:31 -0800 |
| commit | 99c168fccbfedbc10ce1cb2dcb9eb790c478d833 (patch) | |
| tree | 45e9d6509be0dde4bd45785e4f8a47d4583da31e /arch/riscv/kernel/perf_callchain.c | |
| parent | 31564b8b6dbaf9035d27131982d3296c10742baa (diff) | |
riscv: Cleanup stacktrace
1. add asm/stacktrace.h for walk_stackframe and struct stackframe
2. remove unnecessary blank lines in stacktrace.c
3. fix warning "no previous prototype for ‘fill_callchain’"
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/kernel/perf_callchain.c')
| -rw-r--r-- | arch/riscv/kernel/perf_callchain.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/riscv/kernel/perf_callchain.c b/arch/riscv/kernel/perf_callchain.c index cf190197a22f..623ecd36a720 100644 --- a/arch/riscv/kernel/perf_callchain.c +++ b/arch/riscv/kernel/perf_callchain.c @@ -4,11 +4,7 @@ #include <linux/perf_event.h> #include <linux/uaccess.h> -/* Kernel callchain */ -struct stackframe { - unsigned long fp; - unsigned long ra; -}; +#include <asm/stacktrace.h> /* * Get the return address for a single stackframe and return a pointer to the @@ -74,13 +70,11 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry, fp = user_backtrace(entry, fp, 0); } -bool fill_callchain(unsigned long pc, void *entry) +static bool fill_callchain(unsigned long pc, void *entry) { return perf_callchain_store(entry, pc); } -void notrace walk_stackframe(struct task_struct *task, - struct pt_regs *regs, bool (*fn)(unsigned long, void *), void *arg); void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs) { |