From: Wenbo Zhang <ethercflow@gmail.com>
Date: Sun, 15 Mar 2020 04:32:52 -0400
Subject: bpf, libbpf: Fix ___bpf_kretprobe_args1(x) macro definition
Patch-mainline: v5.7-rc1
Git-commit: 483d7a30f538e2f8addd32aa9a3d2e94ae55fa65
References: bsc#1177028
Use PT_REGS_RC instead of PT_REGS_RET to get ret correctly.
Fixes: df8ff35311c8 ("libbpf: Merge selftests' bpf_trace_helpers.h into libbpf's bpf_tracing.h")
Signed-off-by: Wenbo Zhang <ethercflow@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200315083252.22274-1-ethercflow@gmail.com
Acked-by: Gary Lin <glin@suse.com>
---
tools/lib/bpf/bpf_tracing.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/lib/bpf/bpf_tracing.h
+++ b/tools/lib/bpf/bpf_tracing.h
@@ -390,7 +390,7 @@ ____##name(struct pt_regs *ctx, ##args)
#define ___bpf_kretprobe_args0() ctx
#define ___bpf_kretprobe_args1(x) \
- ___bpf_kretprobe_args0(), (void *)PT_REGS_RET(ctx)
+ ___bpf_kretprobe_args0(), (void *)PT_REGS_RC(ctx)
#define ___bpf_kretprobe_args(args...) \
___bpf_apply(___bpf_kretprobe_args, ___bpf_narg(args))(args)