bpf/verifier: Handle BPF_LOAD_ACQ instructions in insn_def_regno()

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In preparation for supporting BPF load-acquire and store-release
instructions for architectures where bpf_jit_needs_zext() returns true
(e.g. riscv64), make insn_def_regno() handle load-acquires properly.

Acked-by: Björn Töpel <bjorn@kernel.org>
Tested-by: Björn Töpel <bjorn@rivosinc.com> # QEMU/RVA23
Signed-off-by: Peilin Ye <yepeilin@google.com>
Reviewed-by: Pu Lehui <pulehui@huawei.com>
Link: https://lore.kernel.org/r/09cb2aec979aaed9d16db41f0f5b364de39377c0.1746588351.git.yepeilin@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Peilin Ye 2025-05-07 03:42:45 +00:00 • committed by Alexei Starovoitov

parent b69d4413aa

commit fce7bd8e38

1 changed files with 6 additions and 6 deletions

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kernel/bpf/verifier.c

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