diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst
index 64c0ec7428a2..26a536ef4cd6 100644
--- a/Documentation/dev-tools/kselftest.rst
+++ b/Documentation/dev-tools/kselftest.rst
@@ -133,6 +133,44 @@ build successfully; make will abort as soon as any target fails::
 This applies to both the ``all`` and ``install`` targets and is useful in
 CI environments where a silent partial build would be misleading.
 
+Recording suite build results
+=============================
+
+Since the build succeeds as long as one target builds, the exit status of
+make does not show which targets failed. Set ``KSFT_BUILD_REPORT`` to the
+absolute path of a file to have the ``all`` and ``install`` targets append
+a tab-separated record for each target they process::
+
+  $ : > /tmp/ksft-build.tsv
+  $ make -C tools/testing/selftests O=/tmp/kernel-build \
+        KSFT_BUILD_REPORT=/tmp/ksft-build.tsv install
+
+Each record holds the phase (``all`` or ``install``), a name and the exit
+status of that step. Recording does not change which targets are built or
+installed, or the exit status of make, also with ``FORCE_TARGETS=1``. The
+caller creates or truncates the report before a build; the rules only
+append to it. Nothing is recorded by ``make -n``, ``-t`` or ``-q``.
+
+The same name can appear several times: ``install`` builds the targets
+again, and generating ``kselftest-list.txt`` is recorded as part of the
+``install`` phase. Targets that are added automatically as installation
+dependencies of other targets, such as ``net/lib``, are recorded too.
+Suites that are built from several subdirectories may also record each
+subdirectory under its path, for example ``arm64/tags``; a failure there
+means that the suite was built or installed only partially. A record
+belongs to the target with the longest name that is equal to the record
+name or followed by ``/`` in it.
+
+A target was built and installed successfully only if all of its records
+have a zero status. Missing records do not show that a target was built.
+A successful target that installs no tests has no entries in
+``kselftest-list.txt``. Install the kernel headers with ``make headers``
+before building: a suite that fails because the headers are missing is
+recorded as failed even if a later step installs them.
+
+``KSFT_BUILD_REPORT_VERSION`` in tools/testing/selftests/Makefile gives the
+version of this format, currently ``1``.
+
 Running the full range hotplug selftests
 ========================================
 
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 62a24e742be6..d4c71ad20bbb 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -171,6 +171,10 @@ endif
 # of the targets gets built.
 FORCE_TARGETS ?=
 
+# Remember dry runs for the build report before MAKEFLAGS may be cleared.
+KSFT_BUILD_REPORT_DRY_RUN := $(strip $(foreach f,n t q,$(findstring $(f),$(firstword -$(MAKEFLAGS)))))
+export KSFT_BUILD_REPORT_DRY_RUN
+
 # Clear LDFLAGS and MAKEFLAGS when implicit rules are missing.  This provides
 # implicit rules to sub-test Makefiles which avoids build failures in test
 # Makefile that don't have explicit build rules.
@@ -215,6 +219,10 @@ ARCH           ?= $(SUBARCH)
 export BUILD
 export KHDR_INCLUDES
 
+# Version of the optional KSFT_BUILD_REPORT format written by these rules.
+KSFT_BUILD_REPORT_VERSION := 1
+include $(top_srcdir)/tools/testing/selftests/build_report.mk
+
 # set default goal to all, so make without a target runs all, even when
 # all isn't the first target in the file.
 .DEFAULT_GOAL := all
@@ -223,11 +231,13 @@ all:
 	@ret=1;							\
 	for TARGET in $(TARGETS) $(INSTALL_DEP_TARGETS); do	\
 		BUILD_TARGET=$$BUILD/$$TARGET;			\
-		mkdir $$BUILD_TARGET  -p;			\
+		mkdir -p $$BUILD_TARGET &&			\
 		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET	\
-				O=$(abs_objtree)		\
-				$(if $(FORCE_TARGETS),|| exit);	\
-		[ $$? -eq 0 ] && ret=0;				\
+				O=$(abs_objtree);		\
+		status=$$?;					\
+		$(call ksft_record_build_status,all,$$TARGET);	\
+		$(if $(FORCE_TARGETS),[ $$status -eq 0 ] || exit $$status;) \
+		[ $$status -eq 0 ] && ret=0;			\
 	done; exit $$ret;
 
 run_tests: all
@@ -284,7 +294,7 @@ ifdef INSTALL_PATH
 	install -m 744 kselftest/ktap_helpers.sh $(INSTALL_PATH)/kselftest/
 	install -m 744 kselftest/ksft.py $(INSTALL_PATH)/kselftest/
 	install -m 744 run_kselftest.sh $(INSTALL_PATH)/
-	rm -f $(TEST_LIST)
+	: > $(TEST_LIST)
 	@ret=1;	\
 	for TARGET in $(TARGETS) $(INSTALL_DEP_TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
@@ -292,9 +302,11 @@ ifdef INSTALL_PATH
 				INSTALL_PATH=$(INSTALL_PATH)/$$TARGET \
 				SRC_PATH=$(shell readlink -e $$(pwd)) \
 				OBJ_PATH=$(INSTALL_PATH) \
-				O=$(abs_objtree)		\
-				$(if $(FORCE_TARGETS),|| exit);	\
-		[ $$? -eq 0 ] && ret=0;		\
+				O=$(abs_objtree);		\
+		status=$$?;				\
+		$(call ksft_record_build_status,install,$$TARGET); \
+		$(if $(FORCE_TARGETS),[ $$status -eq 0 ] || exit $$status;) \
+		[ $$status -eq 0 ] && ret=0;		\
 	done; exit $$ret;
 
 
@@ -308,6 +320,9 @@ ifdef INSTALL_PATH
 		printf "Emit Tests for $$TARGET\n"; \
 		$(MAKE) -s --no-print-directory OUTPUT=$$BUILD_TARGET COLLECTION=$$TARGET \
 			-C $$TARGET emit_tests >> $(TEST_LIST); \
+		status=$$?; \
+		$(call ksft_record_build_status,install,$$TARGET); \
+		(exit $$status); \
 	done;
 	@VERSION=$$(git describe HEAD 2>/dev/null); \
 	if [ -n "$$VERSION" ]; then \
diff --git a/tools/testing/selftests/build_report.mk b/tools/testing/selftests/build_report.mk
new file mode 100644
index 000000000000..047c239925e1
--- /dev/null
+++ b/tools/testing/selftests/build_report.mk
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Optional per-suite build report, see "Recording suite build results" in
+# Documentation/dev-tools/kselftest.rst. Callers set KSFT_BUILD_REPORT to an
+# absolute filename and use ksft_record_build_status from a shell loop that
+# has stored the exit status of the recorded step in $status.
+
+ifneq (x$(KSFT_BUILD_REPORT)x,xx)
+ifeq ($(filter x/%,$(firstword x$(KSFT_BUILD_REPORT))),)
+$(error KSFT_BUILD_REPORT must be an absolute path: '$(KSFT_BUILD_REPORT)')
+endif
+endif
+export KSFT_BUILD_REPORT
+
+ksft_build_report_dry_run := $(KSFT_BUILD_REPORT_DRY_RUN) \
+	$(foreach f,n t q,$(findstring $(f),$(firstword -$(MAKEFLAGS))))
+
+ifneq ($(strip $(ksft_build_report_dry_run)),)
+ksft_record_build_status = :
+else
+define ksft_record_build_status
+if [ -n "$$KSFT_BUILD_REPORT" ]; then \
+	printf '%s\t%s\t%d\n' '$(1)' "$(2)" "$$status" >> "$$KSFT_BUILD_REPORT" || exit 1; \
+fi
+endef
+endif