| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 19/73] samples/bpf: fix trace_output example | Date | Mon, 16 May 2016 18:14:49 -0700 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Alexei Starovoitov <ast@fb.com>
[ Upstream commit 569cc39d39385a74b23145496bca2df5ac8b2fb8 ]
llvm cannot always recognize memset as builtin function and optimize it away, so just delete it. It was a leftover from testing of bpf_perf_event_output() with large data structures.
Fixes: 39111695b1b8 ("samples: bpf: add bpf_perf_event_output example") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- samples/bpf/trace_output_kern.c | 1 - 1 file changed, 1 deletion(-)
--- a/samples/bpf/trace_output_kern.c +++ b/samples/bpf/trace_output_kern.c @@ -18,7 +18,6 @@ int bpf_prog1(struct pt_regs *ctx) u64 cookie; } data; - memset(&data, 0, sizeof(data)); data.pid = bpf_get_current_pid_tgid(); data.cookie = 0x12345678;
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