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authorTakashi Iwai <tiwai@suse.de>2025-11-27 07:19:59 +0100
committerTakashi Iwai <tiwai@suse.de>2025-11-27 07:19:59 +0100
commitd01a3aad7f2c183152dec02202aa1d23ee02556c (patch)
tree62947b128848602f6c543e05dad2a078d2c117b2 /tools/testing/selftests/bpf/progs/livepatch_trampoline.c
parentd041e5e748f926398ad96436a86667dea8b591e0 (diff)
parent73b97d46dde64fa184d47865d4a532d818c3a007 (diff)
Merge tag 'asoc-fix-v6.18-rc7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.18 A small pile of driver specific fixes that came in during the past few weeks, none of them especially major.
Diffstat (limited to 'tools/testing/selftests/bpf/progs/livepatch_trampoline.c')
-rw-r--r--tools/testing/selftests/bpf/progs/livepatch_trampoline.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/livepatch_trampoline.c b/tools/testing/selftests/bpf/progs/livepatch_trampoline.c
new file mode 100644
index 000000000000..15579d5bcd91
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/livepatch_trampoline.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+int fentry_hit;
+int fexit_hit;
+int my_pid;
+
+SEC("fentry/cmdline_proc_show")
+int BPF_PROG(fentry_cmdline)
+{
+ if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+ return 0;
+
+ fentry_hit = 1;
+ return 0;
+}
+
+SEC("fexit/cmdline_proc_show")
+int BPF_PROG(fexit_cmdline)
+{
+ if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+ return 0;
+
+ fexit_hit = 1;
+ return 0;
+}