This is a note to let you know that I've just added the patch titled perf: correct SNOOPX field offset to the 5.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: perf-correct-snoopx-field-offset.patch and it can be found in the queue-5.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 4d0c44eb8c86d05c362c590fa9dcc7cfe772b2f0 Author: Al Grant <al.grant@xxxxxxxxxxxx> Date: Mon Sep 21 21:46:37 2020 +0100 perf: correct SNOOPX field offset [ Upstream commit f3d301c1f2f5676465cdf3259737ea19cc82731f ] perf_event.h has macros that define the field offsets in the data_src bitmask in perf records. The SNOOPX and REMOTE offsets were both 37. These are distinct fields, and the bitfield layout in perf_mem_data_src confirms that SNOOPX should be at offset 38. Fixes: 52839e653b5629bd ("perf tools: Add support for printing new mem_info encodings") Signed-off-by: Al Grant <al.grant@xxxxxxxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Reviewed-by: Andi Kleen <ak@xxxxxxxxxxxxxxx> Link: https://lkml.kernel.org/r/4ac9f5cc-4388-b34a-9999-418a4099415d@xxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index 7b2d6fc9e6ed7..dc33e3051819d 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -1155,7 +1155,7 @@ union perf_mem_data_src { #define PERF_MEM_SNOOPX_FWD 0x01 /* forward */ /* 1 free */ -#define PERF_MEM_SNOOPX_SHIFT 37 +#define PERF_MEM_SNOOPX_SHIFT 38 /* locked instruction */ #define PERF_MEM_LOCK_NA 0x01 /* not available */