From: Bruce Ashfield <[email protected]>

To keep the perf source copying as small as possible, we can
further refine the arch/uapi copy to the single file that we
currently need.

To avoid a warning from the general perf source copy routine,
we make the .h conditional based on the architecture.

The supported architectures will not change often, so updating
this arch list is very minimal effort. Alternatively, we could
add a PERF_OPTIONAL_SRC variable and not warn if a file isn't
available for a given architecture.

Signed-off-by: Bruce Ashfield <[email protected]>
---

This is a further refinement of the perf header that
is required outside of tools.

I'm trying it this way first, versus making the perf
source copy not warn on missing files, since we risk
skipping warnings we want to see!

Bruce

 meta/recipes-kernel/perf/perf.bb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/meta/recipes-kernel/perf/perf.bb b/meta/recipes-kernel/perf/perf.bb
index 2f540cd54b..3cc7f63610 100644
--- a/meta/recipes-kernel/perf/perf.bb
+++ b/meta/recipes-kernel/perf/perf.bb
@@ -129,7 +129,9 @@ EXTRA_OEMAKE += "\
 # honour a JOBS variable.
 EXTRA_OEMAKE:append:task-configure = " JOBS=1"
 
-# include/uapi/asm is for: include/uapi/asm/bpf_perf_event.h
+# the architectures that need this file can be found in
+# ./tools/include/uapi/asm/bpf_perf_event.h
+PERF_BPF_EVENT_SRC ?= '${@bb.utils.contains_any("ARCH", [ "riscv", "arm64", 
"powerpc" ], "arch/${ARCH}/include/uapi/asm/bpf_perf_event.h", "", d)}'
 PERF_SRC ?= "Makefile \
              tools/arch \
              tools/build \
@@ -140,7 +142,7 @@ PERF_SRC ?= "Makefile \
              tools/scripts \
              scripts/ \
              arch/arm64/tools \
-             arch/${ARCH}/include/uapi/asm/ \
+             ${PERF_BPF_EVENT_SRC} \
              arch/${ARCH}/Makefile \
 "
 
-- 
2.39.2

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