[PATCH bpf-next v4 00/27] x86/ftrace/bpf: Add batch support for direct/tracing attach · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 01/27] x86/ftrace: Remove extra orig rax move · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 02/27] x86/ftrace: Remove fault protection code in prepare_ftrace_return · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 03/27] x86/ftrace: Make function graph use ftrace directly · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 04/27] tracing: Add trampoline/graph selftest · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 05/27] ftrace: Add ftrace_add_rec_direct function · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 06/27] ftrace: Add multi direct register/unregister interface · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 07/27] ftrace: Add multi direct modify interface · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 08/27] ftrace/samples: Add multi direct interface test module · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 09/27] bpf: Add support to load multi func tracing program · Jiri Olsa <hidden> · 2021-08-26
Re: [PATCH bpf-next v4 09/27] bpf: Add support to load multi func tracing program · Andrii Nakryiko <hidden> · 2021-08-31
Re: [PATCH bpf-next v4 09/27] bpf: Add support to load multi func tracing program · Jiri Olsa <hidden> · 2021-09-01
[PATCH bpf-next v4 10/27] bpf: Add struct bpf_tramp_node layer · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 11/27] bpf: Factor out bpf_trampoline_init function · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 12/27] bpf: Factor out __bpf_trampoline_lookup function · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 13/27] bpf: Factor out __bpf_trampoline_put function · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 14/27] bpf: Change bpf_trampoline_get to return error pointer · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 15/27] bpf, x64: Allow to use caller address from stack · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 16/27] bpf: Add bpf_trampoline_multi_get/put functions · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 17/27] bpf: Add multi trampoline attach support · Jiri Olsa <hidden> · 2021-08-26
Re: [PATCH bpf-next v4 17/27] bpf: Add multi trampoline attach support · Andrii Nakryiko <hidden> · 2021-08-31
Re: [PATCH bpf-next v4 17/27] bpf: Add multi trampoline attach support · Andrii Nakryiko <hidden> · 2021-09-01
Re: [PATCH bpf-next v4 17/27] bpf: Add multi trampoline attach support · Jiri Olsa <hidden> · 2021-09-01
[PATCH bpf-next v4 18/27] bpf, x64: Store properly return value for trampoline with multi func programs · Jiri Olsa <hidden> · 2021-08-26
Re: [PATCH bpf-next v4 18/27] bpf, x64: Store properly return value for trampoline with multi func programs · Andrii Nakryiko <hidden> · 2021-08-31
Re: [PATCH bpf-next v4 18/27] bpf, x64: Store properly return value for trampoline with multi func programs · Jiri Olsa <hidden> · 2021-09-01
Re: [PATCH bpf-next v4 18/27] bpf, x64: Store properly return value for trampoline with multi func programs · Andrii Nakryiko <hidden> · 2021-09-02
Re: [PATCH bpf-next v4 18/27] bpf, x64: Store properly return value for trampoline with multi func programs · Jiri Olsa <hidden> · 2021-09-02
Re: [PATCH bpf-next v4 18/27] bpf, x64: Store properly return value for trampoline with multi func programs · Andrii Nakryiko <hidden> · 2021-09-02
Re: [PATCH bpf-next v4 18/27] bpf, x64: Store properly return value for trampoline with multi func programs · Alexei Starovoitov <hidden> · 2021-09-02
Re: [PATCH bpf-next v4 18/27] bpf, x64: Store properly return value for trampoline with multi func programs · Jiri Olsa <hidden> · 2021-09-03
[PATCH bpf-next v4 19/27] bpf: Attach multi trampoline with ftrace_ops · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 20/27] libbpf: Add btf__find_by_glob_kind function · Jiri Olsa <hidden> · 2021-08-26
Re: [PATCH bpf-next v4 20/27] libbpf: Add btf__find_by_glob_kind function · Andrii Nakryiko <hidden> · 2021-09-01
Re: [PATCH bpf-next v4 20/27] libbpf: Add btf__find_by_glob_kind function · Jiri Olsa <hidden> · 2021-09-01
[PATCH bpf-next v4 21/27] libbpf: Add support to link multi func tracing program · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 22/27] selftests/bpf: Add fentry multi func test · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 23/27] selftests/bpf: Add fexit multi func test · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 25/27] selftests/bpf: Add mixed multi func test · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 26/27] selftests/bpf: Add attach multi func test · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 27/27] selftests/bpf: Add ret_mod multi func test · Jiri Olsa <hidden> · 2021-08-26
[PATCH bpf-next v4 24/27] selftests/bpf: Add fentry/fexit multi func test · Jiri Olsa <hidden> · 2021-08-26
Re: [PATCH bpf-next v4 00/27] x86/ftrace/bpf: Add batch support for direct/tracing attach · Alexei Starovoitov <hidden> · 2021-08-29
Re: [PATCH bpf-next v4 00/27] x86/ftrace/bpf: Add batch support for direct/tracing attach · Jiri Olsa <hidden> · 2021-08-30

[PATCH bpf-next v4 01/27] x86/ftrace: Remove extra orig rax move

STALE1869d

From: Jiri Olsa <hidden>
Date: 2021-08-26 19:39:34
Also in: bpf
Subsystem: function hooks (ftrace), the rest, x86 architecture (32-bit and 64-bit) · Maintainers: Steven Rostedt, Masami Hiramatsu, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen

There's identical move 2 lines earlier.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 arch/x86/kernel/ftrace_64.S | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 7c273846c687..a8eb084a7a9a 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S

@@ -251,7 +251,6 @@ SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
 	 * If ORIG_RAX is anything but zero, make this a call to that.
 	 * See arch_ftrace_set_direct_caller().
 	 */
-	movq ORIG_RAX(%rsp), %rax
 	testq	%rax, %rax
 SYM_INNER_LABEL(ftrace_regs_caller_jmp, SYM_L_GLOBAL)
 	jnz	1f

-- 
2.31.1

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