On Tue, 2026-01-20 at 11:39 +0800, Zesen Liu wrote: > [...] > > > On Jan 20, 2026, at 04:24, Eduard Zingerman <[email protected]> wrote: > > > > Q: why ARG_PTR_TO_UNINIT_MEM here, but not for a previous function and > > not for snprintf variants? > > For bpf_get_stack_proto_raw_tp, I chose ARG_PTR_TO_UNINIT_MEM to be > consistent with its siblings: > > • bpf_get_stack_proto_tp (bpf_trace.c:1425) > • bpf_get_stack_proto (stackmap.c:525) > • bpf_get_stack_sleepable_proto (stackmap.c:541) > > All of these are wrappers around the same core function bpf_get_stack() / > __bpf_get_stack(), passing the buffer with identical semantics, and all use > ARG_PTR_TO_UNINIT_MEM.
Ack, makes sense, thank you for explaining.
