Cover Letter Detail
Show a cover letter.
GET /api/covers/2218525/?format=api
{ "id": 2218525, "url": "http://patchwork.ozlabs.org/api/covers/2218525/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/cover/20260401152133.42544-1-adubey@linux.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20260401152133.42544-1-adubey@linux.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260401152133.42544-1-adubey@linux.ibm.com/", "date": "2026-04-01T15:21:29", "name": "[v3,0/4] powerpc/bpf: Add support for instruction array and indirect jump", "submitter": { "id": 88541, "url": "http://patchwork.ozlabs.org/api/people/88541/?format=api", "name": "adubey", "email": "adubey@linux.ibm.com" }, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/cover/20260401152133.42544-1-adubey@linux.ibm.com/mbox/", "series": [ { "id": 498317, "url": "http://patchwork.ozlabs.org/api/series/498317/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=498317", "date": "2026-04-01T15:21:30", "name": "powerpc/bpf: Add support for instruction array and indirect jump", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/498317/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2218525/comments/", "headers": { "Return-Path": "\n <linuxppc-dev+bounces-19143-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=e4LCjVLA;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; helo=lists.ozlabs.org;\n envelope-from=linuxppc-dev+bounces-19143-incoming=patchwork.ozlabs.org@lists.ozlabs.org;\n receiver=patchwork.ozlabs.org)", "lists.ozlabs.org;\n arc=none smtp.remote-ip=148.163.158.5", "lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=linux.ibm.com", "lists.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=e4LCjVLA;\n\tdkim-atps=neutral", "lists.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com\n (client-ip=148.163.158.5; helo=mx0b-001b2d01.pphosted.com;\n envelope-from=adubey@linux.ibm.com; receiver=lists.ozlabs.org)" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org\n [IPv6:2404:9400:21b9:f100::1])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1 raw public key)\n server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fm2cj6Thbz1xtJ\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 01 Apr 2026 22:21:41 +1100 (AEDT)", "from boromir.ozlabs.org (localhost [127.0.0.1])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 4fm2cb4NCkz2yl2;\n\tWed, 01 Apr 2026 22:21:35 +1100 (AEDT)", "from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com\n [148.163.158.5])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 4fm2cZ2RzJz2yjp\n\tfor <linuxppc-dev@lists.ozlabs.org>; Wed, 01 Apr 2026 22:21:33 +1100 (AEDT)", "from pps.filterd (m0360072.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 6319ZMpc4177299;\n\tWed, 1 Apr 2026 11:21:19 GMT", "from ppma12.dal12v.mail.ibm.com\n (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220])\n\tby mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4d66ms720p-1\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n\tWed, 01 Apr 2026 11:21:18 +0000 (GMT)", "from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1])\n\tby ppma12.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id\n 631AVJY7021722;\n\tWed, 1 Apr 2026 11:21:18 GMT", "from smtprelay06.fra02v.mail.ibm.com ([9.218.2.230])\n\tby ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 4d6sasnf4v-1\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n\tWed, 01 Apr 2026 11:21:18 +0000", "from smtpav05.fra02v.mail.ibm.com (smtpav05.fra02v.mail.ibm.com\n [10.20.54.104])\n\tby smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id\n 631BLEja28770698\n\t(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK);\n\tWed, 1 Apr 2026 11:21:14 GMT", "from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 3950D20043;\n\tWed, 1 Apr 2026 11:21:14 +0000 (GMT)", "from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 62A1420040;\n\tWed, 1 Apr 2026 11:21:12 +0000 (GMT)", "from ltcrain4-lp15.ltc.tadn.ibm.com (unknown [9.5.7.39])\n\tby smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP;\n\tWed, 1 Apr 2026 11:21:12 +0000 (GMT)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1775042495;\n\tcv=none;\n b=NirgAO6IbT4ez916z8iUqRNT31S20ahiygSKgU/2N0ogBS4eFrC6UnyxwDJcZnVnvyACmPj1jL96pG9xpX/FZ8uN42r3qqLvXM2WP5DiACZzBJn81wSTpyYPVWAQ2fIFH9SmVZbfwu2coJVx8st1V/jzxARsBMFwSw98Uq6E9cm6+ej1WaXEkrNtKz2XUdIS5smejSt9LkVAqRpwqr5AKqYaiRG001v6YQdh9XY08lhm0ceAiusY1hZDhH45uE43Xehtaf8zH2FBrd6CLP4Urpu8SuHSW41iSqP6lm6h7e7JUNTTmYQ1264Urvc9WJds952gerECfIa/OREqS+flLg==", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707;\n\tt=1775042495; c=relaxed/relaxed;\n\tbh=1gWu5swfhBndrAfvrNOR5ecjoMQCuxPVWMqjRl0uPqQ=;\n\th=From:To:Cc:Subject:Date:Message-ID:MIME-Version;\n b=fJELXdx+BmhABSpsLc7Wv4AoOl7VljHiVsWFxKahQUiZcBudurkVveSopAbQg1U9LD0Zh4l+6Jv20Ga50JCEUU3RI/OF0a576PdqrqP7jnEogWdWSIi9NRsSX5BsrAyFhr+2uzEpS49ycFXHBgSgl2TAkQzBGHME3buRq0MOYO+OwIn5cD8TGYsPxpvhF41/rB96UJK9lF2qF8iTYwWviNT5kIKmQ/Wg4/eCpuQpmk/FyddNPQL/ToHgn02e9liCWFRM5T1wFSikjnLv1JRlcifSMQtJ4yxsKaCR2F4AIiDyQwAxVeI6aVKzAuT2NunA+RsWc5s8vu+Okz/v01KMqg==", "ARC-Authentication-Results": "i=1; lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=linux.ibm.com;\n dkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=e4LCjVLA; dkim-atps=neutral;\n spf=pass (client-ip=148.163.158.5; helo=mx0b-001b2d01.pphosted.com;\n envelope-from=adubey@linux.ibm.com;\n receiver=lists.ozlabs.org) smtp.mailfrom=linux.ibm.com", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n\t:content-transfer-encoding:date:from:message-id:mime-version\n\t:subject:to; s=pp1; bh=1gWu5swfhBndrAfvrNOR5ecjoMQCuxPVWMqjRl0uP\n\tqQ=; b=e4LCjVLAu7v1KbNYBG0uw7jD/rqQNGhAbIkbosmXu4ZT1SQBXrOOTqsZ/\n\tHtXZ//ap9DCG7dFHNEQWPP/pWnCzSAOZBEzda/5rDKiRKMWdOTFfOdj0cOcrpFka\n\tNAkdRz6KrHBSHDX7qp20YIRBndfW26sXn/UDNRKi9/DSxK7167UZafQpRwn9Qs4R\n\tChQzcNpJ/zi55ma9Ge3gDehoji/23ZGtUX8Aewo4Fmj/mCIeN1YTMY7TjF7G0TkC\n\tycZNcw2FTURyY5rMQVLx+QFjIST1BECeDGaC1BrA7cbBYgSNPFkfd1KshysIJGDl\n\t1RzcF5qjZVpGkhkT4p1sk4F/Q55dg==", "From": "adubey@linux.ibm.com", "To": "linuxppc-dev@lists.ozlabs.org", "Cc": "hbathini@linux.ibm.com, bpf@vger.kernel.org, maddy@linux.ibm.com,\n ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net,\n shuah@kernel.org, linux-kselftest@vger.kernel.org,\n Abhishek Dubey <adubey@linux.ibm.com>", "Subject": "[PATCH v3 0/4] powerpc/bpf: Add support for instruction array and\n indirect jump", "Date": "Wed, 1 Apr 2026 11:21:29 -0400", "Message-ID": "<20260401152133.42544-1-adubey@linux.ibm.com>", "X-Mailer": "git-send-email 2.52.0", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Authority-Analysis": "v=2.4 cv=J6enLQnS c=1 sm=1 tr=0 ts=69ccffaf cx=c_pps\n a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=RzCfie-kr_QcCd8fBx8p:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8\n a=PrvU3QX_WBFfOzZGQxIA:9", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDAxMDEwMyBTYWx0ZWRfX/ntHbDZBQBhA\n i5ej0Jt/i49kLDa4gK4o61hNUOn5w0Zc+iXv7PcMaSh+U/Xtu2Nkc1EQcn/sFsFP75g+3u+yIx2\n uokNVwO63p8bCRT4FbqyBAeuuYAxSCFRyck23D1C6erz6q1Bbfc2ys3V+OmspmG4MIiOB9wtub0\n IBuzVpV5B9V1MFUd6NZv3IBD8RocDgt7FRV0nJ4SGOnOgAa3KTPwt9pKHYdujezthdh2eJvI1za\n ximTxgPx58WO03vJSFRXZkzdJG8ZBDtxnvW+1YxUTN6Avh8zD9lCXmCx7HrQc+X1FZ1bYYXC7NB\n hypOj0pIT9hiQYlwRCUxcfiOq3PEE3sbko5ym1MLZWNAu0joIQG6YVHELanSmuOJq7k+itqSLzR\n B9INGKGDHt9HiVNcVCsbb4nWGcikXxJTAm5Dp5w2FLTwLfx5K+tuC+SRhOgQkHSJ5tUoe/AXhyE\n chf+tV376sE033LT0kQ==", "X-Proofpoint-GUID": "IcPYZ5CPA12J2Lr2MlzngmgiRMKFO4P5", "X-Proofpoint-ORIG-GUID": "IcPYZ5CPA12J2Lr2MlzngmgiRMKFO4P5", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-01_03,2026-04-01_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n suspectscore=0 clxscore=1015 adultscore=0 priorityscore=1501 bulkscore=0\n phishscore=0 malwarescore=0 lowpriorityscore=0 spamscore=0 impostorscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604010103", "X-Spam-Status": "No, score=1.7 required=3.0 tests=DATE_IN_FUTURE_03_06,\n\tDKIM_SIGNED,DKIM_VALID,RCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H4,\n\tRCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS autolearn=disabled\n\tversion=4.0.1 OzLabs 8", "X-Spam-Level": "*", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "From: Abhishek Dubey <adubey@linux.ibm.com>\n\nThe first 2 patch enable support for instruction array. Now, the\ninstruction offset map maintain the mapping:\noriginal inst -> xlated inst -> jited inst\n\nThe last two patch enable support for indirect jump. Any eligile\nregister can store jump target address for control flow to jump.\n\nThe later features will be enabled on ppc32 in a separate series.\n\nThe patch series is rebased over:\nhttps://lore.kernel.org/bpf/20260401141043.41513-1-adubey@linux.ibm.com\n\nAll selftest related to instruction array and indirect jump\nare passing on ppc64.\n\n# ./test_progs-cpuv4 -n 20\n#20/1 bpf_gotox/one-switch:OK\n#20/2 bpf_gotox/one-switch-non-zero-sec-offset:OK\n#20/3 bpf_gotox/two-switches:OK\n#20/4 bpf_gotox/big-jump-table:OK\n#20/5 bpf_gotox/static-global:OK\n#20/6 bpf_gotox/nonstatic-global:OK\n#20/7 bpf_gotox/other-sec:OK\n#20/8 bpf_gotox/static-global-other-sec:OK\n#20/9 bpf_gotox/nonstatic-global-other-sec:OK\n#20/10 bpf_gotox/one-jump-two-maps:OK\n#20/11 bpf_gotox/one-map-two-jumps:OK\n#20/12 bpf_gotox/check-ldimm64-off:OK\n#20/13 bpf_gotox/check-ldimm64-off-gotox:OK\n#20 bpf_gotox:OK\nSummary: 1/13 PASSED, 0 SKIPPED, 0 FAILED\n\n# ./test_progs-cpuv4 -n 21\n#21/1 bpf_insn_array/one2one:OK\n#21/2 bpf_insn_array/simple:OK\n#21/3 bpf_insn_array/deletions:OK\n#21/4 bpf_insn_array/deletions-with-functions:OK\n#21/5 bpf_insn_array/blindness:OK\n#21/6 bpf_insn_array/incorrect-index:OK\n#21/7 bpf_insn_array/load-unfrozen-map:OK\n#21/8 bpf_insn_array/no-map-reuse:OK\n#21/9 bpf_insn_array/bpf-side-ops:OK\n#21 bpf_insn_array:OK\nSummary: 1/9 PASSED, 0 SKIPPED, 0 FAILED\n\nv2->v3:\n Address minor comments\n Collecting Tested-by and Acked-by tags\nv1->v2:\n Handle image offset for ABIv1\n\n[v2]: https://lore.kernel.org/bpf/20260227014315.39980-1-adubey@linux.ibm.com\n[v1]: https://lore.kernel.org/bpf/20260225010950.20218-1-adubey@linux.ibm.com\n\nAbhishek Dubey (4):\n powerpc/bpf: Add support for instruction array\n selftest/bpf: Enable instruction array test for powerpc\n powerpc64/bpf: Add support for indirect jump\n selftest/bpf: Enable gotox tests for powerpc64\n\n arch/powerpc/net/bpf_jit_comp.c | 7 +++++++\n arch/powerpc/net/bpf_jit_comp64.c | 8 ++++++++\n tools/testing/selftests/bpf/prog_tests/bpf_insn_array.c | 2 +-\n tools/testing/selftests/bpf/progs/verifier_gotox.c | 4 ++--\n 4 files changed, 18 insertions(+), 3 deletions(-)" }