From: Arnaldo Carvalho de Melo <a...@redhat.com> When we use one of:
[acme@jouet linux]$ make help | grep perf perf-tar-src-pkg - Build perf-4.14.0-rc3.tar source tarball perf-targz-src-pkg - Build perf-4.14.0-rc3.tar.gz source tarball perf-tarbz2-src-pkg - Build perf-4.14.0-rc3.tar.bz2 source tarball perf-tarxz-src-pkg - Build perf-4.14.0-rc3.tar.xz source tarball [acme@jouet linux]$ I.e. when we create a detached tarball to build perf outside outside the enveloping kernel sources (from a kernel tarball or a checked out linux.git directory) we by definition can't check for differences among the tools/{include,arch}, etc files we originally copied from the kernel, so bail out in that case, to avoid warnings when doing the detached builds. Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Wang Nan <wangn...@huawei.com> Link: http://lkml.kernel.org/n/tip-vbrga0mhplv7niwxr3ghj...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/check-headers.sh | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh index 932fda54b8a6..322629423b49 100755 --- a/tools/perf/check-headers.sh +++ b/tools/perf/check-headers.sh @@ -57,6 +57,11 @@ check () { } +# Check if we have the kernel headers (tools/perf/../../include), else +# we're probably on a detached tarball, so no point in trying to check +# differences. +test -d ../../include || exit 0 + # simple diff check for i in $HEADERS; do check $i -B -- 2.13.6