From: Jisheng Zhang <jszhang@kernel.org> To: "Björn Töpel" <bjorn@kernel.org>, "Paul Walmsley" <paul.walmsley@sifive.com>, "Palmer Dabbelt" <palmer@dabbelt.com>, "Albert Ou" <aou@eecs.berkeley.edu>, "Alexei Starovoitov" <ast@kernel.org>, "Daniel Borkmann" <daniel@iogearbox.net>, "Andrii Nakryiko" <andrii@kernel.org>, "Martin KaFai Lau" <kafai@fb.com>, "Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>, "John Fastabend" <john.fastabend@gmail.com>, "KP Singh" <kpsingh@kernel.org> Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Tong Tiangen <tongtiangen@huawei.com> Subject: [PATCH riscv-next] riscv: bpf: Fix eBPF's exception tables Date: Tue, 11 Jan 2022 00:52:08 +0800 [thread overview] Message-ID: <20220110165208.1826-1-jszhang@kernel.org> (raw) eBPF's exception tables needs to be modified to relative synchronously. Suggested-by: Tong Tiangen <tongtiangen@huawei.com> Signed-off-by: Jisheng Zhang <jszhang@kernel.org> --- arch/riscv/net/bpf_jit_comp64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c index 69bab7e28f91..44c97535bc15 100644 --- a/arch/riscv/net/bpf_jit_comp64.c +++ b/arch/riscv/net/bpf_jit_comp64.c @@ -498,7 +498,7 @@ static int add_exception_handler(const struct bpf_insn *insn, offset = pc - (long)&ex->insn; if (WARN_ON_ONCE(offset >= 0 || offset < INT_MIN)) return -ERANGE; - ex->insn = pc; + ex->insn = offset; /* * Since the extable follows the program, the fixup offset is always -- 2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Jisheng Zhang <jszhang@kernel.org> To: "Björn Töpel" <bjorn@kernel.org>, "Paul Walmsley" <paul.walmsley@sifive.com>, "Palmer Dabbelt" <palmer@dabbelt.com>, "Albert Ou" <aou@eecs.berkeley.edu>, "Alexei Starovoitov" <ast@kernel.org>, "Daniel Borkmann" <daniel@iogearbox.net>, "Andrii Nakryiko" <andrii@kernel.org>, "Martin KaFai Lau" <kafai@fb.com>, "Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>, "John Fastabend" <john.fastabend@gmail.com>, "KP Singh" <kpsingh@kernel.org> Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Tong Tiangen <tongtiangen@huawei.com> Subject: [PATCH riscv-next] riscv: bpf: Fix eBPF's exception tables Date: Tue, 11 Jan 2022 00:52:08 +0800 [thread overview] Message-ID: <20220110165208.1826-1-jszhang@kernel.org> (raw) eBPF's exception tables needs to be modified to relative synchronously. Suggested-by: Tong Tiangen <tongtiangen@huawei.com> Signed-off-by: Jisheng Zhang <jszhang@kernel.org> --- arch/riscv/net/bpf_jit_comp64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c index 69bab7e28f91..44c97535bc15 100644 --- a/arch/riscv/net/bpf_jit_comp64.c +++ b/arch/riscv/net/bpf_jit_comp64.c @@ -498,7 +498,7 @@ static int add_exception_handler(const struct bpf_insn *insn, offset = pc - (long)&ex->insn; if (WARN_ON_ONCE(offset >= 0 || offset < INT_MIN)) return -ERANGE; - ex->insn = pc; + ex->insn = offset; /* * Since the extable follows the program, the fixup offset is always -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next reply other threads:[~2022-01-10 16:59 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-01-10 16:52 Jisheng Zhang [this message] 2022-01-10 16:52 ` [PATCH riscv-next] riscv: bpf: Fix eBPF's exception tables Jisheng Zhang 2022-01-10 16:57 ` Jisheng Zhang 2022-01-10 16:57 ` Jisheng Zhang 2022-01-19 10:24 ` Björn Töpel 2022-01-19 10:24 ` Björn Töpel 2022-01-19 15:42 ` Daniel Borkmann 2022-01-19 15:42 ` Daniel Borkmann 2022-01-19 15:59 ` Björn Töpel 2022-01-19 15:59 ` Björn Töpel 2022-01-19 18:04 ` Palmer Dabbelt 2022-01-19 18:04 ` Palmer Dabbelt 2022-01-19 21:46 ` Palmer Dabbelt 2022-01-19 21:46 ` Palmer Dabbelt
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