bpf: Support 'X' in bpf_seq_printf() helper

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'X' tells kernel to print hex with upper case letters.
/proc/net/tcp{4,6} seq_file show() used this, and
supports it in bpf_seq_printf() helper too.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200623230807.3988014-1-yhs@fb.com

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Yonghong Song 2020-06-23 16:08:07 -07:00 • committed by Alexei Starovoitov

parent 52d87d5f64

commit c06b022957

1 changed files with 2 additions and 1 deletions

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kernel/trace/bpf_trace.c

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