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selftests/bpf: Fix casting error when cross-compiling test_verifier for 32-bit platforms

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When cross-compiling test_verifier for 32-bit platforms, the casting error is shown below:

test_verifier.c:1263:27: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
 1263 |  info.xlated_prog_insns = (__u64)*buf;
      |                           ^
cc1: all warnings being treated as errors

Fix it by adding zero-extension for it.

Fixes: 933ff53191 ("selftests/bpf: specify expected instructions in test_verifier tests")
Signed-off-by: Pu Lehui <pulehui@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20221108121945.4104644-1-pulehui@huaweicloud.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
This commit is contained in:
Pu Lehui 2022-11-08 20:19:45 +08:00 committed by Martin KaFai Lau
parent eb86559a69
commit 0811664da0
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/bpf/test_verifier.c
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@ -1260,7 +1260,7 @@ static int get_xlated_program(int fd_prog, struct bpf_insn **buf, int *cnt)
bzero(&info, sizeof(info));
info.xlated_prog_len = xlated_prog_len;
info.xlated_prog_insns = (__u64)*buf;
info.xlated_prog_insns = (__u64)(unsigned long)*buf;
if (bpf_obj_get_info_by_fd(fd_prog, &info, &info_len)) {
perror("second bpf_obj_get_info_by_fd failed");
goto out_free_buf;