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-rw-r--r--kernel/bpf/core.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index b1a5fc04492b..0a28a8095d3e 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -1362,11 +1362,13 @@ u64 __weak bpf_probe_read_kernel(void *dst, u32 size, const void *unsafe_ptr)
}
/**
- * __bpf_prog_run - run eBPF program on a given context
+ * ___bpf_prog_run - run eBPF program on a given context
* @regs: is the array of MAX_BPF_EXT_REG eBPF pseudo-registers
* @insn: is the array of eBPF instructions
*
* Decode and execute eBPF instructions.
+ *
+ * Return: whatever value is in %BPF_R0 at program exit
*/
static u64 ___bpf_prog_run(u64 *regs, const struct bpf_insn *insn)
{
@@ -1878,6 +1880,9 @@ static void bpf_prog_select_func(struct bpf_prog *fp)
*
* Try to JIT eBPF program, if JIT is not available, use interpreter.
* The BPF program will be executed via BPF_PROG_RUN() macro.
+ *
+ * Return: the &fp argument along with &err set to 0 for success or
+ * a negative errno code on failure
*/
struct bpf_prog *bpf_prog_select_runtime(struct bpf_prog *fp, int *err)
{