samples/bpf: Don't try to remove user's homedir on clean

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: b62a796c10 ("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
This commit is contained in:
Toke Høiland-Jørgensen 2020-01-20 14:06:41 +01:00 committed by Alexei Starovoitov
parent f1c3656c6d
commit b2e5e93ae8

View File

@ -254,7 +254,7 @@ 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