From: "Alexei Starovoitov" <alexei.starovoitov@gmail.com>
To: "Daniel Borkmann" <daniel@iogearbox.net>, <bpf@vger.kernel.org>
Cc: <rostedt@goodmis.org>, <andrii@kernel.org>, <jolsa@kernel.org>,
"Menglong Dong" <dongml2@chinatelecom.cn>
Subject: Re: [PATCH bpf v3 1/2] x86/ftrace: Mark jmp mode by clearing bit 63 of trampoline address
Date: Thu, 29 Oct 2026 16:35:52 +0000 [thread overview]
Message-ID: <DMHGVE026N3I.1V3834R8WLSYB@gmail.com> (raw)
In-Reply-To: <20261028202345.1215859-1-daniel@iogearbox.net>
On Wed, Oct 28, 2026 at 01:23 PM Daniel Borkmann <daniel@iogearbox.net> wrote:
>
> static inline unsigned long ftrace_jmp_set(unsigned long addr)
> {
> - return addr | 1UL;
> + return addr & ~FTRACE_JMP_BIT;
> }
>
> static inline unsigned long ftrace_jmp_get(unsigned long addr)
> {
> - return addr & ~1UL;
> + return addr | FTRACE_JMP_BIT;
> }
> #else
> static inline bool ftrace_is_jmp(unsigned long addr)
Steven,
the code is the same as in v2. Only the Kconfig text is gone, as you asked.
patch 2 is a bpf selftest.
Mind if I take it via bpf tree?
next prev parent reply other threads:[~2026-10-29 16:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-28 20:23 [PATCH bpf v3 1/2] x86/ftrace: Mark jmp mode by clearing bit 63 of trampoline address Daniel Borkmann
2026-10-28 20:23 ` [PATCH bpf v3 2/2] selftests/bpf: Test kprobe and fentry/fexit programs on one function Daniel Borkmann
2026-10-29 8:38 ` Jiri Olsa
2026-10-29 8:37 ` [PATCH bpf v3 1/2] x86/ftrace: Mark jmp mode by clearing bit 63 of trampoline address Jiri Olsa
2026-10-29 16:35 ` Alexei Starovoitov [this message]
2026-10-29 16:45 ` Steven Rostedt
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