[PATCH 5.5 167/367] samples/bpf: Dont try to remove users homedir on clean

Greg Kroah-Hartman
2020-02-10T12:49:34Z

From: Toke Høiland-Jørgensen <toke@redhat.com>

commit b2e5e93ae8af6a34bca536cdc4b453ab1e707b8b upstream.

The 'clean' rule in the samples/bpf Makefile tries to remove backup
files (ending in ~). However, if no such files exist, it will instead try
to remove the user's home directory. While the attempt is mostly harmless,
it does lead to a somewhat scary warning like this:

rm: cannot remove '~': Is a directory

Fix this by using find instead of shell expansion to locate any actual
backup files that need to be removed.

Fixes: b62a796c109c ("samples/bpf: allow make to be run from samples/bpf/ directory")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/157952560126.1683545.7273054725976032511.stgit@toke.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
samples/bpf/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -251,7 +251,7 @@ all:

clean:
$(MAKE) -C ../../ M=$(CURDIR) clean
- @rm -f *~
+ @find $(CURDIR) -type f -name '*~' -delete

$(LIBBPF): FORCE
# Fix up variables inherited from Kbuild that tools/ build system won't like