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Fri, 20 Nov 2020 22:11:10 +0000 Date: Fri, 20 Nov 2020 14:11:03 -0800 From: Martin KaFai Lau To: Andrii Nakryiko CC: , , , , Subject: Re: [PATCH bpf-next 3/6] libbpf: refactor CO-RE relocs to not assume a single BTF object Message-ID: <20201120221055.cjnb67kfsuaqhv4x@kafai-mbp.dhcp.thefacebook.com> References: <20201119232244.2776720-1-andrii@kernel.org> <20201119232244.2776720-4-andrii@kernel.org> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201119232244.2776720-4-andrii@kernel.org> X-Originating-IP: [2620:10d:c090:400::5:603e] X-ClientProxiedBy: MW4PR03CA0220.namprd03.prod.outlook.com (2603:10b6:303:b9::15) To BY5PR15MB3571.namprd15.prod.outlook.com (2603:10b6:a03:1f6::32) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from kafai-mbp.dhcp.thefacebook.com (2620:10d:c090:400::5:603e) by MW4PR03CA0220.namprd03.prod.outlook.com (2603:10b6:303:b9::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3589.20 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 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 X-MS-Exchange-CrossTenant-Network-Message-Id: 4969f7c1-7859-4a49-a943-08d88da12f98 X-MS-Exchange-CrossTenant-AuthSource: BY5PR15MB3571.namprd15.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Nov 2020 22:11:10.3468 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 223hcfE5h2cB0Gd06wdWxdZXT9LY38mke5wKj28hHSuEWlX31TENjpELXvECIWL9 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR15MB4088 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312,18.0.737 definitions=2020-11-20_16:2020-11-20,2020-11-20 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 mlxlogscore=582 malwarescore=0 clxscore=1015 bulkscore=0 priorityscore=1501 impostorscore=0 spamscore=0 lowpriorityscore=0 suspectscore=1 mlxscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011200144 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, Nov 19, 2020 at 03:22:41PM -0800, Andrii Nakryiko wrote: > Refactor CO-RE relocation candidate search to not expect a single BTF, rather > return all candidate types with their corresponding BTF objects. This will > allow to extend CO-RE relocations to accommodate kernel module BTFs. Acked-by: Martin KaFai Lau