Commit 01a0f9e4 authored Jul 18, 2019 by Ilya Leoshkevich Committed by Alexei Starovoitov Jul 18, 2019

selftests/bpf: fix "valid read map access into a read-only array 1" on s390



This test looks up a 32-bit map element and then loads it using a 64-bit
load. This does not work on s390, which is a big-endian machine.

Since the point of this test doesn't seem to be loading a smaller value
using a larger load, simply use a 32-bit load.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

parent 1cb59a60

tools/testing/selftests/bpf/verifier/array_access.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -226,7 +226,7 @@
		BPF_LD_MAP_FD(BPF_REG_1, 0),
		BPF_RAW_INSN(BPF_JMP \| BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 0),
		BPF_EXIT_INSN(),
		},
		.fixup_map_array_ro = { 3 },

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