aboutsummaryrefslogtreecommitdiff
path: root/tools/testing/selftests/bpf/progs/changes_pkt_data.c
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2024-12-20 14:09:45 +0100
committerTakashi Iwai <tiwai@suse.de>2024-12-20 14:09:45 +0100
commit8cbd01ba9c38eb16f3a572300da486ac544519b7 (patch)
treee9a800bcb96bf8e937ddf0d420514dccbc6c1a75 /tools/testing/selftests/bpf/progs/changes_pkt_data.c
parent66a0a2b0473c39ae85c44628d14e4366fdc0aa0d (diff)
parent32c9c06adb5b157ef259233775a063a43746d699 (diff)
downloadlinux-8cbd01ba9c38eb16f3a572300da486ac544519b7.tar.gz
linux-8cbd01ba9c38eb16f3a572300da486ac544519b7.tar.bz2
linux-8cbd01ba9c38eb16f3a572300da486ac544519b7.zip
Merge tag 'asoc-fix-v6.13-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.13 A mix of quirks and small fixes, nothing too major anywhere.
Diffstat (limited to 'tools/testing/selftests/bpf/progs/changes_pkt_data.c')
-rw-r--r--tools/testing/selftests/bpf/progs/changes_pkt_data.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/changes_pkt_data.c b/tools/testing/selftests/bpf/progs/changes_pkt_data.c
new file mode 100644
index 000000000000..43cada48b28a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/changes_pkt_data.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+__noinline
+long changes_pkt_data(struct __sk_buff *sk)
+{
+ return bpf_skb_pull_data(sk, 0);
+}
+
+__noinline __weak
+long does_not_change_pkt_data(struct __sk_buff *sk)
+{
+ return 0;
+}
+
+SEC("?tc")
+int main_with_subprogs(struct __sk_buff *sk)
+{
+ changes_pkt_data(sk);
+ does_not_change_pkt_data(sk);
+ return 0;
+}
+
+SEC("?tc")
+int main_changes(struct __sk_buff *sk)
+{
+ bpf_skb_pull_data(sk, 0);
+ return 0;
+}
+
+SEC("?tc")
+int main_does_not_change(struct __sk_buff *sk)
+{
+ return 0;
+}
+
+char _license[] SEC("license") = "GPL";