From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f179.google.com (mail-oi1-f179.google.com [209.85.167.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB6AD14C5A7 for ; Thu, 29 Aug 2024 06:25:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724912748; cv=none; b=V0xVobIb4kpgpxFHeLh9IBu1b8SORoA/mxJBoQqDizSEOrowS52sCoOGVkYsgCVdONJlB53FCi+GGrkt9Qnx5o9HNarZ0VVNLJToNyJvY3nkyJRHk9aRoklitmWn/mTh2PTpFkN3GLt+FSGoPIPyIilODxDCCDYyY22BFQSK+vM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724912748; c=relaxed/simple; bh=Mhnd+MvzobaJdkzjSksn6RnfyRJEmp20fgosoNzctGE=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=rrobv7+lMD8HZrgU3z9v0N9mo1RgtKbf5KJfe/Bvy+/HFIVnbfZVGzqvVRX6R/qZW+M8Nkfmns/rFViv6ifEvOnaEjctGqIwV2C9IB7JSTWttHZvMgNkbG6gYz1p+8RKEokjiiRDd0JLn+rt4/pi+JWE0CqPi2zke2xr6vCopgU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=AKkeQHF2; arc=none smtp.client-ip=209.85.167.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AKkeQHF2" Received: by mail-oi1-f179.google.com with SMTP id 5614622812f47-3db157d3bb9so187839b6e.2 for ; Wed, 28 Aug 2024 23:25:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724912746; x=1725517546; darn=vger.kernel.org; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:from:to:cc:subject :date:message-id:reply-to; bh=Mhnd+MvzobaJdkzjSksn6RnfyRJEmp20fgosoNzctGE=; b=AKkeQHF2KQUGR5W9uc7TjDzX4ShYYelbPGUE/gf2IBIj66dDsgpPm+3clQJ6CHsHvb oivQnzF/LKZj4BdzRyp7k4OcWfS6iMyc41cYyELUMwG0O7tXlLceoM/NSk/tXte28hDm pyNOWJePEHam58UEEDH5fQ3VXbuQuzOnueo3kcBi2idR5hCMC0HKd35PZJadmunS4XdV aJKef++MtipwaQ2Cn57Zt+MBwcuFz5D9XrkjLhdwMzRb+8mHIAnvZdr4itVUD589OrOg cISNlbFLw8l2ePO+t4g9zkEiDD/mhp6om8oASyVhRb3RBnTwgNYVOvL3vBJF12nEQzbQ jeIQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724912746; x=1725517546; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Mhnd+MvzobaJdkzjSksn6RnfyRJEmp20fgosoNzctGE=; b=gk9Gp2SIX03dRY7n798M0Ku2hBqe3Vur/snyrSjFWUoTg7gZqT7ObWU2pvvKySPS2N 5px/upkCz2ftm9wMWb0OkUpbsA29DO7R6iqJyGnqBW+bT1Y0dsByGji2q8ABOO5BolkA PqYo06YGyE3MWAyMeZfer3HFhUmYnlKCLvIH5aC9GrkCgBLGYEpin/vbv9BWCji22AVU 1/nV+Kmf5GcAUyM/aDXH4gM2CVle4h0qaq2sUtQSP//bl5tAEISiTk48f9/cKWixVAtN 8CHSh98zquJE8ilf5pQaN5DkI1uzBkk+5p6SwS0dnIxrDMcx7mQJsfNXo+LpXvNGHnxe VUwg== X-Forwarded-Encrypted: i=1; AJvYcCUlXP20BGgI0hHyzZkVUMjaHLrkAIrXoJaBFd+7y0AXA/Kl6YYNdoXOQOFX8/bEN+J9dfc=@vger.kernel.org X-Gm-Message-State: AOJu0YwLdrBYHeTyzwIZZmDjmtN1zfBAp09yQCnlFgoScvdS3GjKCaMG ZVSfxw+7jcvaUL7hNPhtMZc8phk61sfl7NBUaRbEc/4UIA+ECLw1PM6SCw== X-Google-Smtp-Source: AGHT+IEUcKAi8miesB+cYap3FLF/klKNpojDrO6EQaGIfXGtsmxZ53M2x5hGrIDQKZo40Y+ELWAePw== X-Received: by 2002:a05:6808:10cb:b0:3d5:5e18:cf32 with SMTP id 5614622812f47-3df05ef8d56mr2047003b6e.48.1724912745899; Wed, 28 Aug 2024 23:25:45 -0700 (PDT) Received: from [192.168.0.235] ([38.34.87.7]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-7d22e9bf2dfsm409089a12.63.2024.08.28.23.25.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Aug 2024 23:25:45 -0700 (PDT) Message-ID: <891c18a0c6dfaafc7d5bc4e910487191fcfb79e3.camel@gmail.com> Subject: Re: [PATCH v4 bpf-next 9/9] selftests/bpf: Test epilogue patching when the main prog has multiple BPF_EXIT From: Eduard Zingerman To: Martin KaFai Lau , bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Yonghong Song , Amery Hung , kernel-team@meta.com Date: Wed, 28 Aug 2024 23:25:40 -0700 In-Reply-To: <20240827194834.1423815-10-martin.lau@linux.dev> References: <20240827194834.1423815-1-martin.lau@linux.dev> <20240827194834.1423815-10-martin.lau@linux.dev> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.52.4 (3.52.4-1.fc40) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Tue, 2024-08-27 at 12:48 -0700, Martin KaFai Lau wrote: > From: Martin KaFai Lau >=20 > This patch tests the epilogue patching when the main prog has > multiple BPF_EXIT. The verifier should have patched the 2nd (and > later) BPF_EXIT with a BPF_JA that goes back to the earlier > patched epilogue instructions. >=20 > Signed-off-by: Martin KaFai Lau > --- Acked-by: Eduard Zingerman [...]