linux-kernel - [PATCH] sched_ext: tools: Removing duplicate targets during non-cross compilation

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Message-ID: <tencent_67540C5FC5463910910C6E855AB3402FEB09@qq.com>
Date: Tue, 18 Nov 2025 13:37:13 +0800
From: Rong Tao <rtoax@...mail.com>
To: Tejun Heo <tj@...nel.org>,
	David Vernet <void@...ifault.com>,
	Andrea Righi <arighi@...dia.com>,
	Changwoo Min <changwoo@...lia.com>,
	Rong Tao <rongtao@...tc.cn>,
	yangsonghua <jluyangsonghua@...il.com>,
	sched-ext@...ts.linux.dev (open list:SCHEDULER - SCHED_EXT),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] sched_ext: tools: Removing duplicate targets during non-cross compilation

From: Rong Tao <rongtao@...tc.cn>

When cross-compilation is not used, BPFOBJ and HOST_BPFOBJ are identical
files, libbpf.a, and duplicate libbpf.a files should be removed.

Signed-off-by: Rong Tao <rongtao@...tc.cn>
---
 tools/sched_ext/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/sched_ext/Makefile b/tools/sched_ext/Makefile
index d68780e2e03d..0f2bffa3365a 100644
--- a/tools/sched_ext/Makefile
+++ b/tools/sched_ext/Makefile
@@ -133,6 +133,7 @@ $(MAKE_DIRS):
 	$(call msg,MKDIR,,$@)
 	$(Q)mkdir -p $@
 
+ifneq ($(CROSS_COMPILE),)
 $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)			\
 	   $(APIDIR)/linux/bpf.h						\
 	   | $(OBJ_DIR)/libbpf
@@ -141,6 +142,7 @@ $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)			\
 		    EXTRA_CFLAGS='-g -O0 -fPIC'					\
 		    LDFLAGS="$(LDFLAGS)"					\
 		    DESTDIR=$(OUTPUT_DIR) prefix= all install_headers
+endif
 
 $(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		\
 	   $(APIDIR)/linux/bpf.h						\
-- 
2.51.1