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selftests/bpf: Fix test_lsm on s390x

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Use syscall macros to access the setdomainname() arguments; currently
the code uses gprs[2] instead of orig_gpr2 for the first argument.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20230128000650.1516334-16-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Ilya Leoshkevich 2023-01-28 01:06:34 +01:00 committed by Alexei Starovoitov
parent be6b5c10ec
commit 207612eb12
1 changed files with 4 additions and 3 deletions
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7
tools/testing/selftests/bpf/progs/lsm.c
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@ -6,9 +6,10 @@
#include "bpf_misc.h"
#include "vmlinux.h"
#include <bpf/bpf_core_read.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include <errno.h>
#include <errno.h>
struct {
__uint(type, BPF_MAP_TYPE_ARRAY);
@ -164,8 +165,8 @@ int copy_test = 0;
SEC("fentry.s/" SYS_PREFIX "sys_setdomainname")
int BPF_PROG(test_sys_setdomainname, struct pt_regs *regs)
{
void *ptr = (void *)PT_REGS_PARM1(regs);
int len = PT_REGS_PARM2(regs);
void *ptr = (void *)PT_REGS_PARM1_SYSCALL(regs);
int len = PT_REGS_PARM2_SYSCALL(regs);
int buf = 0;
long ret;