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Miller" , Wang YanQing Subject: Re: [bpf-next v6 2/5] bpf: Pass bpf_verifier_env to jit Message-ID: References: <20260306102329.2056216-1-xukuohai@huaweicloud.com> <20260306102329.2056216-3-xukuohai@huaweicloud.com> <1ca67134-011b-416e-b632-4ad061b76c28@huaweicloud.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1ca67134-011b-416e-b632-4ad061b76c28@huaweicloud.com> X-ClientProxiedBy: LO4P123CA0328.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:18c::9) To GV1PR08MB10521.eurprd08.prod.outlook.com (2603:10a6:150:163::20) MIME-Version: 1.0 X-MS-TrafficTypeDiagnostic: GV1PR08MB10521:EE_|DU0PR08MB7994:EE_|AM3PEPF00009B9F:EE_|DB9PR08MB9948:EE_ X-MS-Office365-Filtering-Correlation-Id: 34cc3f5f-e27b-48c4-46ba-08de7c1a750f x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0;ARA:13230040|366016|1800799024|7416014|376014; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:GV1PR08MB10521.eurprd08.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(7416014)(376014);DIR:OUT;SFP:1101; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: n3+upi6yQTi0CCnr2PVkQPYE937pOc9NkGoMeK1FC+wN5NvmrqY0BnZSItlXOUDatUGvAgfwTdetaQSyjdAvtdXuxoymgYiWKdDuIFMImOKDltqDCtZmEnJ/fPni1TdxVePf+cj1IxNbUksdGqRRK90rZ0h4Quk9XiQfbKutduAR2eOHaIjPrTVhkd0fbC+WtTNdpunI8Q+jLAxBCNBXxLo48RmlEsm/gsuOqpo9PVTLlsT6N/yw01maGmrMQiXCsBXgHDPQ9iWvioA7rdhu4ZMTyRtE4rtNEShN25+pFHudYw+rHCEMEiZAdX3rc14xTFn7n3KdWWCZ5y9js4yBRjCAA5suWxyFk7pMhqDXZBU60lTIpcPngZDLnl+mvuLBggJHo/GbvWEJMu+Rv5pAZfuCZ3HynTcIPcLgoPPFq1FojNe8V1+QjzqPAgwDsIo/ X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Mar 2026 07:23:40.7182 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 34cc3f5f-e27b-48c4-46ba-08de7c1a750f X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: AM3PEPF00009B9F.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9PR08MB9948 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260306_232348_337062_231B6AC5 X-CRM114-Status: GOOD ( 13.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, > On 3/7/2026 2:40 PM, Yeoreum Yun wrote: > > Hi, > > > > [...] > > > > > -struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog) > > > +struct bpf_prog *bpf_int_jit_compile(struct bpf_verifier_env *env, struct bpf_prog *prog) > > > > Does this also work for bpf_prepare_filter()? > > For example, ptp_classifier_init() calls it without invoking bpf_check(), > > so there is no env available in that context. > > > > It works. The original bpf_prog_select_runtime() is preserved for > cbpf and test code, and passes NULL env to bpf_int_jit_compile(). Yes, I agree it work with the NULL when I see you patch but I mean I couldn't find out modification in bpf_prepare_filter() -- bpf_jit_compile(fp) -> bpf_jit_compile(NULL, fp) > > > [...] > > > > Thanks. > > > > -- > > Sincerely, > > Yeoreum Yun > > > > > -- Sincerely, Yeoreum Yun