7.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Vincent Donnefort [ Upstream commit 0fa993581aaa58a34ae3dcebebe0fbf593fcb441 ] simple_ring_buffer relies on headers that end up including . On sparc64, this emits the undefined symbol current_thread_info_reg. Allow this symbol. Link: https://patch.msgid.link/20260923074213.3077182-4-vdonnefort@google.com Fixes: 1211907ac0b5 ("tracing: Generate undef symbols allowlist for simple_ring_buffer") Reported-by: Guenter Roeck Closes: https://lore.kernel.org/all/5574c9e6-9ed2-4ee6-a2b2-fb6ee81e83a1@roeck-us.net/ Signed-off-by: Vincent Donnefort Tested-by: Guenter Roeck Signed-off-by: Steven Rostedt Signed-off-by: Sasha Levin --- kernel/trace/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile index 0e1846f7dda32..3860bc53a4bed 100644 --- a/kernel/trace/Makefile +++ b/kernel/trace/Makefile @@ -146,6 +146,7 @@ KASAN_SANITIZE_undefsyms_base.o := y UNDEFINED_ALLOWLIST = __asan __gcov __kasan __kcsan __hwasan __sancov __sanitizer __tsan __ubsan __msan \ __aeabi_unwind_cpp __s390_indirect_jump __x86_indirect_thunk simple_ring_buffer \ + current_thread_info_reg \ $(shell $(NM) -u $(obj)/undefsyms_base.o 2>/dev/null | awk '$$2 {print $$2}') quiet_cmd_check_undefined = NM $< -- 2.53.0