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selftests/bpf: Fix vmlinux test on s390x 

Use a syscall macro to access the nanosleep()'s first argument;
currently the code uses gprs[2] instead of orig_gpr2.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20230128000650.1516334-18-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Ilya Leoshkevich 2023-01-28 01:06:36 +01:00 committed by Alexei Starovoitov
parent 26e8a01494
commit d504270a23
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/bpf/progs/test_vmlinux.c
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@ -42,7 +42,7 @@ int BPF_PROG(handle__raw_tp, struct pt_regs *regs, long id)
if (id != __NR_nanosleep)
return 0;
ts = (void *)PT_REGS_PARM1_CORE(regs);
ts = (void *)PT_REGS_PARM1_CORE_SYSCALL(regs);
if (bpf_probe_read_user(&tv_nsec, sizeof(ts->tv_nsec), &ts->tv_nsec) ||
tv_nsec != MY_TV_NSEC)
return 0;
@ -60,7 +60,7 @@ int BPF_PROG(handle__tp_btf, struct pt_regs *regs, long id)
if (id != __NR_nanosleep)
return 0;
ts = (void *)PT_REGS_PARM1_CORE(regs);
ts = (void *)PT_REGS_PARM1_CORE_SYSCALL(regs);
if (bpf_probe_read_user(&tv_nsec, sizeof(ts->tv_nsec), &ts->tv_nsec) ||
tv_nsec != MY_TV_NSEC)
return 0;