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([2620:10d:c090:600::76f6]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2c0bfd41aacsm8878081eec.27.2026.03.16.14.35.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Mar 2026 14:35:47 -0700 (PDT) Message-ID: <26897fdb11234b8dca4cc6700325428d63847d18.camel@gmail.com> Subject: Re: [RFC PATCH bpf-next v2 02/11] selftests/bpf: Test passing CONST_PTR_TO_DYNPTR to kfunc that may mutate dynptr From: Eduard Zingerman To: Amery Hung , bpf@vger.kernel.org Cc: netdev@vger.kernel.org, alexei.starovoitov@gmail.com, andrii@kernel.org, daniel@iogearbox.net, memxor@gmail.com, martin.lau@kernel.org, kernel-team@meta.com Date: Mon, 16 Mar 2026 14:35:46 -0700 In-Reply-To: <20260307064439.3247440-3-ameryhung@gmail.com> References: <20260307064439.3247440-1-ameryhung@gmail.com> <20260307064439.3247440-3-ameryhung@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.2 (3.58.2-1.fc43) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2026-03-06 at 22:44 -0800, Amery Hung wrote: > Make sure for kfunc that takes mutable dynptr argument, verifier rejects > passing CONST_PTR_TO_DYNPTR to it. >=20 > Rename struct sample to test_sample to avoid a conflict with the > definition in vmlinux.h >=20 > In test_kfunc_dynptr_param.c, initialize dynptr to 0 to avoid > -Wuninitialized-const-pointer warning. >=20 > Signed-off-by: Amery Hung > --- Acked-by: Eduard Zingerman [...]