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libbpf: Clean up bpf_helper_defs.h generation output 

bpf_helpers_doc.py script, used to generate bpf_helper_defs.h, unconditionally
emits one informational message to stderr. Remove it and preserve stderr to
contain only relevant errors. Also make sure script invocations command is
muted by default in libbpf's Makefile.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200113073143.1779940-3-andriin@fb.com
This commit is contained in:
Andrii Nakryiko 2020-01-12 23:31:39 -08:00 committed by Alexei Starovoitov
parent 533420a415
commit 292e1d73b1
2 changed files with 1 additions and 3 deletions
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2
scripts/bpf_helpers_doc.py
View File

@ -158,8 +158,6 @@ class HeaderParser(object):
break
self.reader.close()
print('Parsed description of %d helper function(s)' % len(self.helpers),
file=sys.stderr)
###############################################################################

2
tools/lib/bpf/Makefile
View File

@ -183,7 +183,7 @@ $(BPF_IN_STATIC): force elfdep zdep bpfdep $(BPF_HELPER_DEFS)
$(Q)$(MAKE) $(build)=libbpf OUTPUT=$(STATIC_OBJDIR)
$(BPF_HELPER_DEFS): $(srctree)/tools/include/uapi/linux/bpf.h
$(Q)$(srctree)/scripts/bpf_helpers_doc.py --header \
$(QUIET_GEN)$(srctree)/scripts/bpf_helpers_doc.py --header \
--file $(srctree)/tools/include/uapi/linux/bpf.h > $(BPF_HELPER_DEFS)
$(OUTPUT)libbpf.so: $(OUTPUT)libbpf.so.$(LIBBPF_VERSION)