# \[PATCH v2 1/2\] x86/tlb/trace: Export the TLB\_REMOTE\_WRONG\_CPU enum

- From: Tal Zussman \<hidden\>
- Date: 2025-12-12 09:37:16 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2025/12/3331663
- Thread: https://ratatoskr.run/linux-trace-kernel/2025/12/3331665/t.md

```text
When the TLB_REMOTE_WRONG_CPU enum was introduced for the tlb_flush
tracepoint, the enum was not exported to userspace. Add it to the
appropriate macro definition to enable parsing by userspace tools, as
per [0].

[0] Link: https://lore.kernel.org/all/20150403013802.220157513@goodmis.org

Fixes: 2815a56e4b72 ("x86/mm/tlb: Add tracepoint for TLB flush IPI to stale CPU")
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: David Hildenbrand <redacted>
Reviewed-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Tal Zussman <redacted>
---
 include/trace/events/tlb.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
index b4d8e7dc38f8..725a75720a23 100644
--- a/include/trace/events/tlb.h
+++ b/include/trace/events/tlb.h
@@ -13,7 +13,8 @@
 	EM(  TLB_REMOTE_SHOOTDOWN,	"remote shootdown" )		\
 	EM(  TLB_LOCAL_SHOOTDOWN,	"local shootdown" )		\
 	EM(  TLB_LOCAL_MM_SHOOTDOWN,	"local mm shootdown" )		\
-	EMe( TLB_REMOTE_SEND_IPI,	"remote ipi send" )
+	EM(  TLB_REMOTE_SEND_IPI,	"remote ipi send" )		\
+	EMe( TLB_REMOTE_WRONG_CPU,	"remote wrong CPU" )
 
 /*
  * First define the enums in TLB_FLUSH_REASON to be exported to userspace

-- 
2.39.5

```
