Thread (3 messages) 3 messages, 3 authors, 2020-03-17

Re: [PATCH] bpf: Fix ___bpf_kretprobe_args1(x) macro definition.

From: Andrii Nakryiko <hidden>
Date: 2020-03-15 17:23:59
Also in: bpf, lkml

On Sun, Mar 15, 2020 at 1:33 AM Wenbo Zhang [off-list ref] wrote:
Use PT_REGS_RC instead of PT_REGS_RET to get ret currectly.

Signed-off-by: Wenbo Zhang <redacted>
---
Thanks!

Fixes: df8ff35311c8 ("libbpf: Merge selftests' bpf_trace_helpers.h
into libbpf's bpf_tracing.h")
Acked-by: Andrii Nakryiko <redacted>
quoted hunk ↗ jump to hunk
 tools/lib/bpf/bpf_tracing.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h
index b0c9ae5c73b5..f3f3c3fb98cb 100644
--- 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)

--
2.17.1
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