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[192.26.29.3]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49549a47de7sm213237225e9.7.2026.07.19.08.36.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Jul 2026 08:36:34 -0700 (PDT) From: Kumar Kartikeya Dwivedi To: bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Eduard Zingerman , Emil Tsalapatis , kkd@meta.com, kernel-team@meta.com Subject: [PATCH bpf-next v2 0/5] Fix unique field logic in BTF Date: Sun, 19 Jul 2026 17:36:27 +0200 Message-ID: <20260719153634.2908692-1-memxor@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1007; i=memxor@gmail.com; h=from:subject; bh=v+DEtAPrOuoePYqstQ97i9wSorIZp652vDCWUrNJM+Y=; b=owGbwMvMwCXmrmtenRyi38x4Wi2JISvmlTiDqhy7weLvSx4dKnLq6m9tmCUrvLxb/tjrFbnX0 /eIuFzsKGVhEONikBVTZCn5v4/J+ETl70DbZdwwc1iZwIZwcQrARBQMGBkOnXp94hqbVsQST/GF zv7N7Humh8efOHfpsWKax/y0m+mfGRmOPNuZsNlZmkm6erX9Ob758yccff7j0fXpB5beuP9h07Y /vAA= X-Developer-Key: i=memxor@gmail.com; a=openpgp; fpr=B34BD741DE8494B76E2F717880EF20021D46C59B Content-Transfer-Encoding: 8bit Fix constraint of certain fields that have to be unique when nested structs are present, BPF_REFCOUNT which should be marked as unique. See commit logs for details. While at it, fix improper offset check. Changelog: ---------- v1 -> v2 v1: https://lore.kernel.org/bpf/20260719142401.2420111-1-memxor@gmail.com * Add fix for BPF_REFCOUNT not being unique. (Sashiko) * Roll improper offset warning check into series. (Sashiko) Kumar Kartikeya Dwivedi (5): bpf: Fix offset warn check for bpf_res_spin_lock bpf: Preserve unique-field state across nested structs bpf: Mark bpf_refcount field as unique selftests/bpf: Test duplicate unique fields in nested structs selftests/bpf: Test duplicate bpf_refcount fields kernel/bpf/btf.c | 30 ++++++------ tools/testing/selftests/bpf/prog_tests/btf.c | 48 ++++++++++++++++++++ 2 files changed, 64 insertions(+), 14 deletions(-) base-commit: ecf11bc5f56abb3a2219a8c75e8a5b54467d1781 -- 2.53.0