From nobody Thu Oct 2 03:23:00 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D9CE430E82D; Tue, 23 Sep 2025 21:53:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758664405; cv=none; b=XnfgGHHqcsWgcT7ZArZswbdEcWxkLD++zhGTUabFlk0q4mKV6IIDe/qPwDN9p0k6Lx9FlxHL9RNsaQRnBZZKVFZmTOhkOg6yQrM0mgTkJehmIf2WAZPb/0E2DsHPnXKKNVusLmwHWum4Ub2S1/+f7xoMsxGmI+P3fsTELm0gzDo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758664405; c=relaxed/simple; bh=OpzLg/8ZZk8IB4Rmz2mXM8LnzYXPoiDOAj+Xzo3GFkg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mHyT8GGQq964UGV+I9zP4c+2KZ5cktJkiupvUEKHweR5UpNsXo3vKvigOeenv2CtVTuRlyeIzSWcs30/WV7Q+r/wFLMQPL0NFqhjGJ9zzYXg1UiFuiNm0dI1rEz2Ja9hSt0m1401WKGZ5CXkyOPyHrihuwjbI7NnWoc/GzRavFg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Mh7VPZ0p; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Mh7VPZ0p" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD203C4CEF5; Tue, 23 Sep 2025 21:53:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758664404; bh=OpzLg/8ZZk8IB4Rmz2mXM8LnzYXPoiDOAj+Xzo3GFkg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Mh7VPZ0ppE54wcUXXtdWf/h4beC0/2JSrie7Qwn/1/Hsvl159FNkdrv6cncih/LT8 TGW0xy+bLrW0b9Q+K8G5+KMpM4lfVH4zTaho2hSERtcoXUm6FKGE4mUJdR9ISk7+Yg kRb2Fx+aukn8sfS4VBpkrJ2tRf5k1TycG7Fg8gyhznkXiinKdsCoi2tZPcIVOmCnop Hwki4MyaA2oSMH0b3VNLUHm/u9zTcAoSz/wO99NPeNKq61oEsh+NkPQWdKIBXwDxjp fo8iWIQpnsGPOzHpT66QneK3cdvN0vgVsu5IVAe8740bH+9WXe6gww7WvFQFap4Qla VIULln/yaqa7Q== From: Jiri Olsa To: Steven Rostedt , Florent Revest , Mark Rutland Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Menglong Dong Subject: [PATCH 8/9] ftrace: Factor ftrace_ops ops_func interface Date: Tue, 23 Sep 2025 23:51:46 +0200 Message-ID: <20250923215147.1571952-9-jolsa@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250923215147.1571952-1-jolsa@kernel.org> References: <20250923215147.1571952-1-jolsa@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" We are going to remove "ftrace_ops->private =3D=3D bpf_trampoline" setup in following changes. Adding ip argument to ftrace_ops_func_t callback function, so we can use it to look up the trampoline. Signed-off-by: Jiri Olsa --- include/linux/ftrace.h | 2 +- kernel/bpf/trampoline.c | 3 ++- kernel/trace/ftrace.c | 6 +++--- 3 files changed, 6 insertions(+), 5 deletions(-) diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 42da4dd08759..98e983d3d6b3 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -394,7 +394,7 @@ enum ftrace_ops_cmd { * Negative on failure. The return value is dependent on the * callback. */ -typedef int (*ftrace_ops_func_t)(struct ftrace_ops *op, enum ftrace_ops_cm= d cmd); +typedef int (*ftrace_ops_func_t)(struct ftrace_ops *op, unsigned long ip, = enum ftrace_ops_cmd cmd); =20 #ifdef CONFIG_DYNAMIC_FTRACE =20 diff --git a/kernel/bpf/trampoline.c b/kernel/bpf/trampoline.c index bdebaa94ca37..3464859189a2 100644 --- a/kernel/bpf/trampoline.c +++ b/kernel/bpf/trampoline.c @@ -33,7 +33,8 @@ static DEFINE_MUTEX(trampoline_mutex); #ifdef CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS static int bpf_trampoline_update(struct bpf_trampoline *tr, bool lock_dire= ct_mutex); =20 -static int bpf_tramp_ftrace_ops_func(struct ftrace_ops *ops, enum ftrace_o= ps_cmd cmd) +static int bpf_tramp_ftrace_ops_func(struct ftrace_ops *ops, unsigned long= ip, + enum ftrace_ops_cmd cmd) { struct bpf_trampoline *tr =3D ops->private; int ret =3D 0; diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 6e9d5975477d..2af1304d1a83 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2036,7 +2036,7 @@ static int __ftrace_hash_update_ipmodify(struct ftrac= e_ops *ops, */ if (!ops->ops_func) return -EBUSY; - ret =3D ops->ops_func(ops, FTRACE_OPS_CMD_ENABLE_SHARE_IPMODIFY_SELF); + ret =3D ops->ops_func(ops, rec->ip, FTRACE_OPS_CMD_ENABLE_SHARE_IPMODI= FY_SELF); if (ret) return ret; } else if (is_ipmodify) { @@ -8740,7 +8740,7 @@ static int prepare_direct_functions_for_ipmodify(stru= ct ftrace_ops *ops) if (!op->ops_func) return -EBUSY; =20 - ret =3D op->ops_func(op, FTRACE_OPS_CMD_ENABLE_SHARE_IPMODIFY_PEER); + ret =3D op->ops_func(op, ip, FTRACE_OPS_CMD_ENABLE_SHARE_IPMODIFY_PEER= ); if (ret) return ret; } @@ -8787,7 +8787,7 @@ static void cleanup_direct_functions_after_ipmodify(s= truct ftrace_ops *ops) =20 /* The cleanup is optional, ignore any errors */ if (found_op && op->ops_func) - op->ops_func(op, FTRACE_OPS_CMD_DISABLE_SHARE_IPMODIFY_PEER); + op->ops_func(op, ip, FTRACE_OPS_CMD_DISABLE_SHARE_IPMODIFY_PEER); } } mutex_unlock(&direct_mutex); --=20 2.51.0