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tracing: Fix simple_ring_buffer undef check on sparc64

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simple_ring_buffer relies on headers that end up including
<asm/thread_info.h>. 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: 1211907ac0 ("tracing: Generate undef symbols allowlist for simple_ring_buffer")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Closes: https://lore.kernel.org/all/5574c9e6-9ed2-4ee6-a2b2-fb6ee81e83a1@roeck-us.net/
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Vincent Donnefort 2026-09-23 08:42:13 +01:00 committed by Steven Rostedt
parent ba875c4483
commit 0fa993581a
1 changed files with 1 additions and 0 deletions
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kernel/trace/Makefile
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@ -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 $<