linux-yocto_5.2.bb: Fix build races in kernel-selftests

Message ID 20190829045347.8144-1-raj.khem@gmail.com
State New
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Series
  • linux-yocto_5.2.bb: Fix build races in kernel-selftests
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Commit Message

Khem Raj Aug. 29, 2019, 4:53 a.m.
Signed-off-by: Khem Raj <raj.khem@gmail.com>

Cc: Bruce Ashfield <bruce.ashfield@gmail.com>
---
 ...x-test_verifier-test_maps-make-depen.patch | 58 +++++++++++++
 ...ructure-test_-progs-maps-verifier-te.patch | 86 +++++++++++++++++++
 meta/recipes-kernel/linux/linux-yocto_5.2.bb  |  3 +
 3 files changed, 147 insertions(+)
 create mode 100644 meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch
 create mode 100644 meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch

-- 
2.23.0

-- 
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Comments

Bruce Ashfield Aug. 29, 2019, 12:22 p.m. | #1
I'll merge this directly to the 5.2 branches, rather than patches (but
you knew I'd say that). I'll queue it and run some tests ASAP.

Bruce

On Thu, Aug 29, 2019 at 12:53 AM Khem Raj <raj.khem@gmail.com> wrote:
>

> Signed-off-by: Khem Raj <raj.khem@gmail.com>

> Cc: Bruce Ashfield <bruce.ashfield@gmail.com>

> ---

>  ...x-test_verifier-test_maps-make-depen.patch | 58 +++++++++++++

>  ...ructure-test_-progs-maps-verifier-te.patch | 86 +++++++++++++++++++

>  meta/recipes-kernel/linux/linux-yocto_5.2.bb  |  3 +

>  3 files changed, 147 insertions(+)

>  create mode 100644 meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch

>  create mode 100644 meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch

>

> diff --git a/meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch b/meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch

> new file mode 100644

> index 0000000000..e397b10cb4

> --- /dev/null

> +++ b/meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch

> @@ -0,0 +1,58 @@

> +From 08a2303803397c98e0f279bb6fb22afc673786a3 Mon Sep 17 00:00:00 2001

> +From: Andrii Nakryiko <andriin@fb.com>

> +Date: Tue, 16 Jul 2019 12:38:36 -0700

> +Subject: [PATCH 1/2] selftests/bpf: fix test_verifier/test_maps make

> + dependencies

> +

> +e46fc22e60a4 ("selftests/bpf: make directory prerequisites order-only")

> +exposed existing problem in Makefile for test_verifier and test_maps tests:

> +their dependency on auto-generated header file with a list of all tests wasn't

> +recorded explicitly. This patch fixes these issues.

> +

> +Fixes: 51a0e301a563 ("bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps")

> +Fixes: 6b7b6995c43e ("selftests: bpf: tests.h should depend on .c files, not the output")

> +Cc: Ilya Leoshkevich <iii@linux.ibm.com>

> +Cc: Stanislav Fomichev <sdf@google.com>

> +Cc: Martin KaFai Lau <kafai@fb.com>

> +Signed-off-by: Andrii Nakryiko <andriin@fb.com>

> +Signed-off-by: Alexei Starovoitov <ast@kernel.org>

> +---

> + tools/testing/selftests/bpf/Makefile | 6 +++---

> + 1 file changed, 3 insertions(+), 3 deletions(-)

> +

> +diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile

> +index b9e88ccc289b..cd12bf414056 100644

> +--- a/tools/testing/selftests/bpf/Makefile

> ++++ b/tools/testing/selftests/bpf/Makefile

> +@@ -77,8 +77,6 @@ all: $(TEST_CUSTOM_PROGS)

> + $(OUTPUT)/urandom_read: $(OUTPUT)/%: %.c

> +       $(CC) -o $@ $< -Wl,--build-id

> +

> +-$(OUTPUT)/test_maps: map_tests/*.c

> +-

> + BPFOBJ := $(OUTPUT)/libbpf.a

> +

> + $(TEST_GEN_PROGS): $(BPFOBJ)

> +@@ -242,9 +240,10 @@ MAP_TESTS_DIR = $(OUTPUT)/map_tests

> + $(MAP_TESTS_DIR):

> +       mkdir -p $@

> + MAP_TESTS_H := $(MAP_TESTS_DIR)/tests.h

> ++MAP_TESTS_FILES := $(wildcard map_tests/*.c)

> + test_maps.c: $(MAP_TESTS_H)

> + $(OUTPUT)/test_maps: CFLAGS += $(TEST_MAPS_CFLAGS)

> +-MAP_TESTS_FILES := $(wildcard map_tests/*.c)

> ++$(OUTPUT)/test_maps: test_maps.c $(MAP_TESTS_H) $(MAP_TESTS_FILES)

> + $(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)

> +       $(shell ( cd map_tests/; \

> +                 echo '/* Generated header, do not edit */'; \

> +@@ -261,6 +260,7 @@ $(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)

> + VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h

> + test_verifier.c: $(VERIFIER_TESTS_H)

> + $(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)

> ++$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)

> +

> + VERIFIER_TESTS_DIR = $(OUTPUT)/verifier

> + $(VERIFIER_TESTS_DIR):

> +--

> +2.23.0

> +

> diff --git a/meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch b/meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch

> new file mode 100644

> index 0000000000..36692088b0

> --- /dev/null

> +++ b/meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch

> @@ -0,0 +1,86 @@

> +From 2fd88b60e6255206d46baa543a637aa1e1cc6186 Mon Sep 17 00:00:00 2001

> +From: Andrii Nakryiko <andriin@fb.com>

> +Date: Tue, 16 Jul 2019 12:38:37 -0700

> +Subject: [PATCH 2/2] selftests/bpf: structure test_{progs, maps, verifier}

> + test runners uniformly

> +

> +It's easier to follow the logic if it's structured the same.

> +There is just slight difference between test_progs/test_maps and

> +test_verifier. test_verifier's verifier/*.c files are not really compilable

> +C files (they are more of include headers), so they can't be specified as

> +explicit dependencies of test_verifier.

> +

> +Cc: Alexei Starovoitov <ast@fb.com>

> +Signed-off-by: Andrii Nakryiko <andriin@fb.com>

> +Signed-off-by: Alexei Starovoitov <ast@kernel.org>

> +---

> + tools/testing/selftests/bpf/Makefile | 24 ++++++++++--------------

> + 1 file changed, 10 insertions(+), 14 deletions(-)

> +

> +diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile

> +index cd12bf414056..b76c43eb5d4f 100644

> +--- a/tools/testing/selftests/bpf/Makefile

> ++++ b/tools/testing/selftests/bpf/Makefile

> +@@ -161,6 +161,7 @@ endif

> + endif

> +

> + TEST_PROGS_CFLAGS := -I. -I$(OUTPUT)

> ++TEST_MAPS_CFLAGS := -I. -I$(OUTPUT)

> + TEST_VERIFIER_CFLAGS := -I. -I$(OUTPUT) -Iverifier

> +

> + ifneq ($(SUBREG_CODEGEN),)

> +@@ -212,16 +213,14 @@ ifeq ($(DWARF2BTF),y)

> +       $(BTF_PAHOLE) -J $@

> + endif

> +

> +-PROG_TESTS_H := $(OUTPUT)/prog_tests/tests.h

> +-test_progs.c: $(PROG_TESTS_H)

> +-$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)

> +-$(OUTPUT)/test_progs: prog_tests/*.c

> +-

> + PROG_TESTS_DIR = $(OUTPUT)/prog_tests

> + $(PROG_TESTS_DIR):

> +       mkdir -p $@

> +-

> ++PROG_TESTS_H := $(PROG_TESTS_DIR)/tests.h

> + PROG_TESTS_FILES := $(wildcard prog_tests/*.c)

> ++test_progs.c: $(PROG_TESTS_H)

> ++$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)

> ++$(OUTPUT)/test_progs: test_progs.c $(PROG_TESTS_H) $(PROG_TESTS_FILES)

> + $(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)

> +       $(shell ( cd prog_tests/; \

> +                 echo '/* Generated header, do not edit */'; \

> +@@ -235,7 +234,6 @@ $(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)

> +                 echo '#endif' \

> +                ) > $(PROG_TESTS_H))

> +

> +-TEST_MAPS_CFLAGS := -I. -I$(OUTPUT)

> + MAP_TESTS_DIR = $(OUTPUT)/map_tests

> + $(MAP_TESTS_DIR):

> +       mkdir -p $@

> +@@ -257,17 +255,15 @@ $(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)

> +                 echo '#endif' \

> +                ) > $(MAP_TESTS_H))

> +

> +-VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h

> +-test_verifier.c: $(VERIFIER_TESTS_H)

> +-$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)

> +-$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)

> +-

> + VERIFIER_TESTS_DIR = $(OUTPUT)/verifier

> + $(VERIFIER_TESTS_DIR):

> +       mkdir -p $@

> +-

> ++VERIFIER_TESTS_H := $(VERIFIER_TESTS_DIR)/tests.h

> + VERIFIER_TEST_FILES := $(wildcard verifier/*.c)

> +-$(OUTPUT)/verifier/tests.h: $(VERIFIER_TESTS_DIR) $(VERIFIER_TEST_FILES)

> ++test_verifier.c: $(VERIFIER_TESTS_H)

> ++$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)

> ++$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)

> ++$(VERIFIER_TESTS_H): $(VERIFIER_TEST_FILES) | $(VERIFIER_TESTS_DIR)

> +       $(shell ( cd verifier/; \

> +                 echo '/* Generated header, do not edit */'; \

> +                 echo '#ifdef FILL_ARRAY'; \

> +--

> +2.23.0

> +

> diff --git a/meta/recipes-kernel/linux/linux-yocto_5.2.bb b/meta/recipes-kernel/linux/linux-yocto_5.2.bb

> index d873a1f2b3..b3cb51162b 100644

> --- a/meta/recipes-kernel/linux/linux-yocto_5.2.bb

> +++ b/meta/recipes-kernel/linux/linux-yocto_5.2.bb

> @@ -29,6 +29,9 @@ SRCREV_meta ?= "b53e99257175fd6f41f31e5ebec46c1bd11076b8"

>  SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;name=machine;branch=${KBRANCH}; \

>             git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-5.2;destsuffix=${KMETA}"

>

> +SRC_URI += "file://0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch \

> +            file://0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch \

> +"

>  LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"

>  LINUX_VERSION ?= "5.2.10"

>

> --

> 2.23.0

>



-- 
- Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end
- "Use the force Harry" - Gandalf, Star Trek II
-- 
_______________________________________________
Openembedded-core mailing list
Openembedded-core@lists.openembedded.org
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Bruce Ashfield Aug. 30, 2019, 4:36 a.m. | #2
I have these staged and they will be part of my next version of the 5.2 recipes.

Bruce

On Thu, Aug 29, 2019 at 8:22 AM Bruce Ashfield <bruce.ashfield@gmail.com> wrote:
>

> I'll merge this directly to the 5.2 branches, rather than patches (but

> you knew I'd say that). I'll queue it and run some tests ASAP.

>

> Bruce

>

> On Thu, Aug 29, 2019 at 12:53 AM Khem Raj <raj.khem@gmail.com> wrote:

> >

> > Signed-off-by: Khem Raj <raj.khem@gmail.com>

> > Cc: Bruce Ashfield <bruce.ashfield@gmail.com>

> > ---

> >  ...x-test_verifier-test_maps-make-depen.patch | 58 +++++++++++++

> >  ...ructure-test_-progs-maps-verifier-te.patch | 86 +++++++++++++++++++

> >  meta/recipes-kernel/linux/linux-yocto_5.2.bb  |  3 +

> >  3 files changed, 147 insertions(+)

> >  create mode 100644 meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch

> >  create mode 100644 meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch

> >

> > diff --git a/meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch b/meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch

> > new file mode 100644

> > index 0000000000..e397b10cb4

> > --- /dev/null

> > +++ b/meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch

> > @@ -0,0 +1,58 @@

> > +From 08a2303803397c98e0f279bb6fb22afc673786a3 Mon Sep 17 00:00:00 2001

> > +From: Andrii Nakryiko <andriin@fb.com>

> > +Date: Tue, 16 Jul 2019 12:38:36 -0700

> > +Subject: [PATCH 1/2] selftests/bpf: fix test_verifier/test_maps make

> > + dependencies

> > +

> > +e46fc22e60a4 ("selftests/bpf: make directory prerequisites order-only")

> > +exposed existing problem in Makefile for test_verifier and test_maps tests:

> > +their dependency on auto-generated header file with a list of all tests wasn't

> > +recorded explicitly. This patch fixes these issues.

> > +

> > +Fixes: 51a0e301a563 ("bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps")

> > +Fixes: 6b7b6995c43e ("selftests: bpf: tests.h should depend on .c files, not the output")

> > +Cc: Ilya Leoshkevich <iii@linux.ibm.com>

> > +Cc: Stanislav Fomichev <sdf@google.com>

> > +Cc: Martin KaFai Lau <kafai@fb.com>

> > +Signed-off-by: Andrii Nakryiko <andriin@fb.com>

> > +Signed-off-by: Alexei Starovoitov <ast@kernel.org>

> > +---

> > + tools/testing/selftests/bpf/Makefile | 6 +++---

> > + 1 file changed, 3 insertions(+), 3 deletions(-)

> > +

> > +diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile

> > +index b9e88ccc289b..cd12bf414056 100644

> > +--- a/tools/testing/selftests/bpf/Makefile

> > ++++ b/tools/testing/selftests/bpf/Makefile

> > +@@ -77,8 +77,6 @@ all: $(TEST_CUSTOM_PROGS)

> > + $(OUTPUT)/urandom_read: $(OUTPUT)/%: %.c

> > +       $(CC) -o $@ $< -Wl,--build-id

> > +

> > +-$(OUTPUT)/test_maps: map_tests/*.c

> > +-

> > + BPFOBJ := $(OUTPUT)/libbpf.a

> > +

> > + $(TEST_GEN_PROGS): $(BPFOBJ)

> > +@@ -242,9 +240,10 @@ MAP_TESTS_DIR = $(OUTPUT)/map_tests

> > + $(MAP_TESTS_DIR):

> > +       mkdir -p $@

> > + MAP_TESTS_H := $(MAP_TESTS_DIR)/tests.h

> > ++MAP_TESTS_FILES := $(wildcard map_tests/*.c)

> > + test_maps.c: $(MAP_TESTS_H)

> > + $(OUTPUT)/test_maps: CFLAGS += $(TEST_MAPS_CFLAGS)

> > +-MAP_TESTS_FILES := $(wildcard map_tests/*.c)

> > ++$(OUTPUT)/test_maps: test_maps.c $(MAP_TESTS_H) $(MAP_TESTS_FILES)

> > + $(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)

> > +       $(shell ( cd map_tests/; \

> > +                 echo '/* Generated header, do not edit */'; \

> > +@@ -261,6 +260,7 @@ $(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)

> > + VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h

> > + test_verifier.c: $(VERIFIER_TESTS_H)

> > + $(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)

> > ++$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)

> > +

> > + VERIFIER_TESTS_DIR = $(OUTPUT)/verifier

> > + $(VERIFIER_TESTS_DIR):

> > +--

> > +2.23.0

> > +

> > diff --git a/meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch b/meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch

> > new file mode 100644

> > index 0000000000..36692088b0

> > --- /dev/null

> > +++ b/meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch

> > @@ -0,0 +1,86 @@

> > +From 2fd88b60e6255206d46baa543a637aa1e1cc6186 Mon Sep 17 00:00:00 2001

> > +From: Andrii Nakryiko <andriin@fb.com>

> > +Date: Tue, 16 Jul 2019 12:38:37 -0700

> > +Subject: [PATCH 2/2] selftests/bpf: structure test_{progs, maps, verifier}

> > + test runners uniformly

> > +

> > +It's easier to follow the logic if it's structured the same.

> > +There is just slight difference between test_progs/test_maps and

> > +test_verifier. test_verifier's verifier/*.c files are not really compilable

> > +C files (they are more of include headers), so they can't be specified as

> > +explicit dependencies of test_verifier.

> > +

> > +Cc: Alexei Starovoitov <ast@fb.com>

> > +Signed-off-by: Andrii Nakryiko <andriin@fb.com>

> > +Signed-off-by: Alexei Starovoitov <ast@kernel.org>

> > +---

> > + tools/testing/selftests/bpf/Makefile | 24 ++++++++++--------------

> > + 1 file changed, 10 insertions(+), 14 deletions(-)

> > +

> > +diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile

> > +index cd12bf414056..b76c43eb5d4f 100644

> > +--- a/tools/testing/selftests/bpf/Makefile

> > ++++ b/tools/testing/selftests/bpf/Makefile

> > +@@ -161,6 +161,7 @@ endif

> > + endif

> > +

> > + TEST_PROGS_CFLAGS := -I. -I$(OUTPUT)

> > ++TEST_MAPS_CFLAGS := -I. -I$(OUTPUT)

> > + TEST_VERIFIER_CFLAGS := -I. -I$(OUTPUT) -Iverifier

> > +

> > + ifneq ($(SUBREG_CODEGEN),)

> > +@@ -212,16 +213,14 @@ ifeq ($(DWARF2BTF),y)

> > +       $(BTF_PAHOLE) -J $@

> > + endif

> > +

> > +-PROG_TESTS_H := $(OUTPUT)/prog_tests/tests.h

> > +-test_progs.c: $(PROG_TESTS_H)

> > +-$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)

> > +-$(OUTPUT)/test_progs: prog_tests/*.c

> > +-

> > + PROG_TESTS_DIR = $(OUTPUT)/prog_tests

> > + $(PROG_TESTS_DIR):

> > +       mkdir -p $@

> > +-

> > ++PROG_TESTS_H := $(PROG_TESTS_DIR)/tests.h

> > + PROG_TESTS_FILES := $(wildcard prog_tests/*.c)

> > ++test_progs.c: $(PROG_TESTS_H)

> > ++$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)

> > ++$(OUTPUT)/test_progs: test_progs.c $(PROG_TESTS_H) $(PROG_TESTS_FILES)

> > + $(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)

> > +       $(shell ( cd prog_tests/; \

> > +                 echo '/* Generated header, do not edit */'; \

> > +@@ -235,7 +234,6 @@ $(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)

> > +                 echo '#endif' \

> > +                ) > $(PROG_TESTS_H))

> > +

> > +-TEST_MAPS_CFLAGS := -I. -I$(OUTPUT)

> > + MAP_TESTS_DIR = $(OUTPUT)/map_tests

> > + $(MAP_TESTS_DIR):

> > +       mkdir -p $@

> > +@@ -257,17 +255,15 @@ $(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)

> > +                 echo '#endif' \

> > +                ) > $(MAP_TESTS_H))

> > +

> > +-VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h

> > +-test_verifier.c: $(VERIFIER_TESTS_H)

> > +-$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)

> > +-$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)

> > +-

> > + VERIFIER_TESTS_DIR = $(OUTPUT)/verifier

> > + $(VERIFIER_TESTS_DIR):

> > +       mkdir -p $@

> > +-

> > ++VERIFIER_TESTS_H := $(VERIFIER_TESTS_DIR)/tests.h

> > + VERIFIER_TEST_FILES := $(wildcard verifier/*.c)

> > +-$(OUTPUT)/verifier/tests.h: $(VERIFIER_TESTS_DIR) $(VERIFIER_TEST_FILES)

> > ++test_verifier.c: $(VERIFIER_TESTS_H)

> > ++$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)

> > ++$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)

> > ++$(VERIFIER_TESTS_H): $(VERIFIER_TEST_FILES) | $(VERIFIER_TESTS_DIR)

> > +       $(shell ( cd verifier/; \

> > +                 echo '/* Generated header, do not edit */'; \

> > +                 echo '#ifdef FILL_ARRAY'; \

> > +--

> > +2.23.0

> > +

> > diff --git a/meta/recipes-kernel/linux/linux-yocto_5.2.bb b/meta/recipes-kernel/linux/linux-yocto_5.2.bb

> > index d873a1f2b3..b3cb51162b 100644

> > --- a/meta/recipes-kernel/linux/linux-yocto_5.2.bb

> > +++ b/meta/recipes-kernel/linux/linux-yocto_5.2.bb

> > @@ -29,6 +29,9 @@ SRCREV_meta ?= "b53e99257175fd6f41f31e5ebec46c1bd11076b8"

> >  SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;name=machine;branch=${KBRANCH}; \

> >             git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-5.2;destsuffix=${KMETA}"

> >

> > +SRC_URI += "file://0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch \

> > +            file://0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch \

> > +"

> >  LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"

> >  LINUX_VERSION ?= "5.2.10"

> >

> > --

> > 2.23.0

> >

>

>

> --

> - Thou shalt not follow the NULL pointer, for chaos and madness await

> thee at its end

> - "Use the force Harry" - Gandalf, Star Trek II




-- 
- Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end
- "Use the force Harry" - Gandalf, Star Trek II
-- 
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Patch

diff --git a/meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch b/meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch
new file mode 100644
index 0000000000..e397b10cb4
--- /dev/null
+++ b/meta/recipes-kernel/linux/files/0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch
@@ -0,0 +1,58 @@ 
+From 08a2303803397c98e0f279bb6fb22afc673786a3 Mon Sep 17 00:00:00 2001
+From: Andrii Nakryiko <andriin@fb.com>
+Date: Tue, 16 Jul 2019 12:38:36 -0700
+Subject: [PATCH 1/2] selftests/bpf: fix test_verifier/test_maps make
+ dependencies
+
+e46fc22e60a4 ("selftests/bpf: make directory prerequisites order-only")
+exposed existing problem in Makefile for test_verifier and test_maps tests:
+their dependency on auto-generated header file with a list of all tests wasn't
+recorded explicitly. This patch fixes these issues.
+
+Fixes: 51a0e301a563 ("bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps")
+Fixes: 6b7b6995c43e ("selftests: bpf: tests.h should depend on .c files, not the output")
+Cc: Ilya Leoshkevich <iii@linux.ibm.com>
+Cc: Stanislav Fomichev <sdf@google.com>
+Cc: Martin KaFai Lau <kafai@fb.com>
+Signed-off-by: Andrii Nakryiko <andriin@fb.com>
+Signed-off-by: Alexei Starovoitov <ast@kernel.org>
+---
+ tools/testing/selftests/bpf/Makefile | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
+index b9e88ccc289b..cd12bf414056 100644
+--- a/tools/testing/selftests/bpf/Makefile
++++ b/tools/testing/selftests/bpf/Makefile
+@@ -77,8 +77,6 @@ all: $(TEST_CUSTOM_PROGS)
+ $(OUTPUT)/urandom_read: $(OUTPUT)/%: %.c
+ 	$(CC) -o $@ $< -Wl,--build-id
+ 
+-$(OUTPUT)/test_maps: map_tests/*.c
+-
+ BPFOBJ := $(OUTPUT)/libbpf.a
+ 
+ $(TEST_GEN_PROGS): $(BPFOBJ)
+@@ -242,9 +240,10 @@ MAP_TESTS_DIR = $(OUTPUT)/map_tests
+ $(MAP_TESTS_DIR):
+ 	mkdir -p $@
+ MAP_TESTS_H := $(MAP_TESTS_DIR)/tests.h
++MAP_TESTS_FILES := $(wildcard map_tests/*.c)
+ test_maps.c: $(MAP_TESTS_H)
+ $(OUTPUT)/test_maps: CFLAGS += $(TEST_MAPS_CFLAGS)
+-MAP_TESTS_FILES := $(wildcard map_tests/*.c)
++$(OUTPUT)/test_maps: test_maps.c $(MAP_TESTS_H) $(MAP_TESTS_FILES)
+ $(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)
+ 	$(shell ( cd map_tests/; \
+ 		  echo '/* Generated header, do not edit */'; \
+@@ -261,6 +260,7 @@ $(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)
+ VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h
+ test_verifier.c: $(VERIFIER_TESTS_H)
+ $(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)
++$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)
+ 
+ VERIFIER_TESTS_DIR = $(OUTPUT)/verifier
+ $(VERIFIER_TESTS_DIR):
+-- 
+2.23.0
+
diff --git a/meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch b/meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch
new file mode 100644
index 0000000000..36692088b0
--- /dev/null
+++ b/meta/recipes-kernel/linux/files/0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch
@@ -0,0 +1,86 @@ 
+From 2fd88b60e6255206d46baa543a637aa1e1cc6186 Mon Sep 17 00:00:00 2001
+From: Andrii Nakryiko <andriin@fb.com>
+Date: Tue, 16 Jul 2019 12:38:37 -0700
+Subject: [PATCH 2/2] selftests/bpf: structure test_{progs, maps, verifier}
+ test runners uniformly
+
+It's easier to follow the logic if it's structured the same.
+There is just slight difference between test_progs/test_maps and
+test_verifier. test_verifier's verifier/*.c files are not really compilable
+C files (they are more of include headers), so they can't be specified as
+explicit dependencies of test_verifier.
+
+Cc: Alexei Starovoitov <ast@fb.com>
+Signed-off-by: Andrii Nakryiko <andriin@fb.com>
+Signed-off-by: Alexei Starovoitov <ast@kernel.org>
+---
+ tools/testing/selftests/bpf/Makefile | 24 ++++++++++--------------
+ 1 file changed, 10 insertions(+), 14 deletions(-)
+
+diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
+index cd12bf414056..b76c43eb5d4f 100644
+--- a/tools/testing/selftests/bpf/Makefile
++++ b/tools/testing/selftests/bpf/Makefile
+@@ -161,6 +161,7 @@ endif
+ endif
+ 
+ TEST_PROGS_CFLAGS := -I. -I$(OUTPUT)
++TEST_MAPS_CFLAGS := -I. -I$(OUTPUT)
+ TEST_VERIFIER_CFLAGS := -I. -I$(OUTPUT) -Iverifier
+ 
+ ifneq ($(SUBREG_CODEGEN),)
+@@ -212,16 +213,14 @@ ifeq ($(DWARF2BTF),y)
+ 	$(BTF_PAHOLE) -J $@
+ endif
+ 
+-PROG_TESTS_H := $(OUTPUT)/prog_tests/tests.h
+-test_progs.c: $(PROG_TESTS_H)
+-$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)
+-$(OUTPUT)/test_progs: prog_tests/*.c
+-
+ PROG_TESTS_DIR = $(OUTPUT)/prog_tests
+ $(PROG_TESTS_DIR):
+ 	mkdir -p $@
+-
++PROG_TESTS_H := $(PROG_TESTS_DIR)/tests.h
+ PROG_TESTS_FILES := $(wildcard prog_tests/*.c)
++test_progs.c: $(PROG_TESTS_H)
++$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)
++$(OUTPUT)/test_progs: test_progs.c $(PROG_TESTS_H) $(PROG_TESTS_FILES)
+ $(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)
+ 	$(shell ( cd prog_tests/; \
+ 		  echo '/* Generated header, do not edit */'; \
+@@ -235,7 +234,6 @@ $(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)
+ 		  echo '#endif' \
+ 		 ) > $(PROG_TESTS_H))
+ 
+-TEST_MAPS_CFLAGS := -I. -I$(OUTPUT)
+ MAP_TESTS_DIR = $(OUTPUT)/map_tests
+ $(MAP_TESTS_DIR):
+ 	mkdir -p $@
+@@ -257,17 +255,15 @@ $(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)
+ 		  echo '#endif' \
+ 		 ) > $(MAP_TESTS_H))
+ 
+-VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h
+-test_verifier.c: $(VERIFIER_TESTS_H)
+-$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)
+-$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)
+-
+ VERIFIER_TESTS_DIR = $(OUTPUT)/verifier
+ $(VERIFIER_TESTS_DIR):
+ 	mkdir -p $@
+-
++VERIFIER_TESTS_H := $(VERIFIER_TESTS_DIR)/tests.h
+ VERIFIER_TEST_FILES := $(wildcard verifier/*.c)
+-$(OUTPUT)/verifier/tests.h: $(VERIFIER_TESTS_DIR) $(VERIFIER_TEST_FILES)
++test_verifier.c: $(VERIFIER_TESTS_H)
++$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)
++$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)
++$(VERIFIER_TESTS_H): $(VERIFIER_TEST_FILES) | $(VERIFIER_TESTS_DIR)
+ 	$(shell ( cd verifier/; \
+ 		  echo '/* Generated header, do not edit */'; \
+ 		  echo '#ifdef FILL_ARRAY'; \
+-- 
+2.23.0
+
diff --git a/meta/recipes-kernel/linux/linux-yocto_5.2.bb b/meta/recipes-kernel/linux/linux-yocto_5.2.bb
index d873a1f2b3..b3cb51162b 100644
--- a/meta/recipes-kernel/linux/linux-yocto_5.2.bb
+++ b/meta/recipes-kernel/linux/linux-yocto_5.2.bb
@@ -29,6 +29,9 @@  SRCREV_meta ?= "b53e99257175fd6f41f31e5ebec46c1bd11076b8"
 SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;name=machine;branch=${KBRANCH}; \
            git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-5.2;destsuffix=${KMETA}"
 
+SRC_URI += "file://0001-selftests-bpf-fix-test_verifier-test_maps-make-depen.patch \
+            file://0002-selftests-bpf-structure-test_-progs-maps-verifier-te.patch \
+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"
 LINUX_VERSION ?= "5.2.10"