* [PATCHv2 bpf-next] kbuild: Unify options for BTF generation for vmlinux and modules
@ 2021-10-26 21:24 Jiri Olsa
2021-10-27 13:44 ` kernel test robot
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Jiri Olsa @ 2021-10-26 21:24 UTC (permalink / raw)
To: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Masahiro Yamada, Michal Marek, Nick Desaulniers
Cc: netdev, bpf, linux-kbuild, Martin KaFai Lau, Song Liu,
Yonghong Song, John Fastabend, KP Singh
Using new PAHOLE_FLAGS variable to pass extra arguments to
pahole for both vmlinux and modules BTF data generation.
Adding new scripts/pahole-flags.sh script that detect and
prints pahole options.
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
v2 changes:
- posting separately from original patchset
- added Andrii's ack
Makefile | 3 +++
scripts/Makefile.modfinal | 2 +-
scripts/link-vmlinux.sh | 11 +----------
scripts/pahole-flags.sh | 20 ++++++++++++++++++++
4 files changed, 25 insertions(+), 11 deletions(-)
create mode 100755 scripts/pahole-flags.sh
diff --git a/Makefile b/Makefile
index 437ccc66a1c2..ee514b80c62e 100644
--- a/Makefile
+++ b/Makefile
@@ -480,6 +480,8 @@ LZ4 = lz4c
XZ = xz
ZSTD = zstd
+PAHOLE_FLAGS = $(shell PAHOLE=$(PAHOLE) scripts/pahole-flags.sh)
+
CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
-Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
NOSTDINC_FLAGS :=
@@ -534,6 +536,7 @@ export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
+export PAHOLE_FLAGS
# Files to ignore in find ... statements
diff --git a/scripts/Makefile.modfinal b/scripts/Makefile.modfinal
index 1fb45b011e4b..7f39599e9fae 100644
--- a/scripts/Makefile.modfinal
+++ b/scripts/Makefile.modfinal
@@ -40,7 +40,7 @@ quiet_cmd_ld_ko_o = LD [M] $@
quiet_cmd_btf_ko = BTF [M] $@
cmd_btf_ko = \
if [ -f vmlinux ]; then \
- LLVM_OBJCOPY="$(OBJCOPY)" $(PAHOLE) -J --btf_base vmlinux $@; \
+ LLVM_OBJCOPY="$(OBJCOPY)" $(PAHOLE) -J $(PAHOLE_FLAGS) --btf_base vmlinux $@; \
$(RESOLVE_BTFIDS) -b vmlinux $@; \
else \
printf "Skipping BTF generation for %s due to unavailability of vmlinux\n" $@ 1>&2; \
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index d74cee5c4326..3ea7cece7c97 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -205,7 +205,6 @@ vmlinux_link()
gen_btf()
{
local pahole_ver
- local extra_paholeopt=
if ! [ -x "$(command -v ${PAHOLE})" ]; then
echo >&2 "BTF: ${1}: pahole (${PAHOLE}) is not available"
@@ -220,16 +219,8 @@ gen_btf()
vmlinux_link ${1}
- if [ "${pahole_ver}" -ge "118" ] && [ "${pahole_ver}" -le "121" ]; then
- # pahole 1.18 through 1.21 can't handle zero-sized per-CPU vars
- extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_vars"
- fi
- if [ "${pahole_ver}" -ge "121" ]; then
- extra_paholeopt="${extra_paholeopt} --btf_gen_floats"
- fi
-
info "BTF" ${2}
- LLVM_OBJCOPY="${OBJCOPY}" ${PAHOLE} -J ${extra_paholeopt} ${1}
+ LLVM_OBJCOPY="${OBJCOPY}" ${PAHOLE} -J ${PAHOLE_FLAGS} ${1}
# Create ${2} which contains just .BTF section but no symbols. Add
# SHF_ALLOC because .BTF will be part of the vmlinux image. --strip-all
diff --git a/scripts/pahole-flags.sh b/scripts/pahole-flags.sh
new file mode 100755
index 000000000000..2b99fc77019c
--- /dev/null
+++ b/scripts/pahole-flags.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+extra_paholeopt=
+
+if ! [ -x "$(command -v ${PAHOLE})" ]; then
+ return
+fi
+
+pahole_ver=$(${PAHOLE} --version | sed -E 's/v([0-9]+)\.([0-9]+)/\1\2/')
+
+if [ "${pahole_ver}" -ge "118" ] && [ "${pahole_ver}" -le "121" ]; then
+ # pahole 1.18 through 1.21 can't handle zero-sized per-CPU vars
+ extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_vars"
+fi
+if [ "${pahole_ver}" -ge "121" ]; then
+ extra_paholeopt="${extra_paholeopt} --btf_gen_floats"
+fi
+
+echo ${extra_paholeopt}
--
2.31.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCHv2 bpf-next] kbuild: Unify options for BTF generation for vmlinux and modules
2021-10-26 21:24 [PATCHv2 bpf-next] kbuild: Unify options for BTF generation for vmlinux and modules Jiri Olsa
@ 2021-10-27 13:44 ` kernel test robot
2021-10-27 14:57 ` kernel test robot
2021-10-28 17:14 ` Jiri Olsa
2 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2021-10-27 13:44 UTC (permalink / raw)
To: Jiri Olsa, Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Masahiro Yamada, Michal Marek, Nick Desaulniers
Cc: llvm, kbuild-all, netdev, bpf, linux-kbuild, Martin KaFai Lau
[-- Attachment #1: Type: text/plain, Size: 4247 bytes --]
Hi Jiri,
I love your patch! Yet something to improve:
[auto build test ERROR on bpf-next/master]
url: https://github.com/0day-ci/linux/commits/Jiri-Olsa/kbuild-Unify-options-for-BTF-generation-for-vmlinux-and-modules/20211027-052639
base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: powerpc64-buildonly-randconfig-r006-20211027 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 5db7568a6a1fcb408eb8988abdaff2a225a8eb72)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install powerpc64 cross compiling tool for clang build
# apt-get install binutils-powerpc64-linux-gnu
# https://github.com/0day-ci/linux/commit/cd9d0571d9b0204fb3c1badf41ca847ba840e40c
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Jiri-Olsa/kbuild-Unify-options-for-BTF-generation-for-vmlinux-and-modules/20211027-052639
git checkout cd9d0571d9b0204fb3c1badf41ca847ba840e40c
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc distclean
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
/bin/sh: 1: scripts/pahole-flags.sh: not found
/bin/sh: 1: scripts/pahole-flags.sh: not found
/bin/sh: 1: scripts/pahole-flags.sh: not found
/bin/sh: 1: scripts/pahole-flags.sh: not found
--
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
--
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
>> /bin/sh: 1: scripts/pahole-flags.sh: not found
clang-14: error: unsupported argument '-mpower4' to option 'Wa,'
clang-14: error: unsupported argument '-many' to option 'Wa,'
make[2]: *** [scripts/Makefile.build:277: scripts/mod/empty.o] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1221: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:219: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 35247 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCHv2 bpf-next] kbuild: Unify options for BTF generation for vmlinux and modules
2021-10-26 21:24 [PATCHv2 bpf-next] kbuild: Unify options for BTF generation for vmlinux and modules Jiri Olsa
2021-10-27 13:44 ` kernel test robot
@ 2021-10-27 14:57 ` kernel test robot
2021-10-28 17:14 ` Jiri Olsa
2 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2021-10-27 14:57 UTC (permalink / raw)
To: Jiri Olsa, Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Masahiro Yamada, Michal Marek, Nick Desaulniers
Cc: kbuild-all, netdev, bpf, linux-kbuild, Martin KaFai Lau
[-- Attachment #1: Type: text/plain, Size: 3945 bytes --]
Hi Jiri,
I love your patch! Yet something to improve:
[auto build test ERROR on bpf-next/master]
url: https://github.com/0day-ci/linux/commits/Jiri-Olsa/kbuild-Unify-options-for-BTF-generation-for-vmlinux-and-modules/20211027-052639
base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: openrisc-buildonly-randconfig-r001-20211027 (attached as .config)
compiler: or1k-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/cd9d0571d9b0204fb3c1badf41ca847ba840e40c
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Jiri-Olsa/kbuild-Unify-options-for-BTF-generation-for-vmlinux-and-modules/20211027-052639
git checkout cd9d0571d9b0204fb3c1badf41ca847ba840e40c
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=openrisc SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
/bin/bash: scripts/pahole-flags.sh: No such file or directory
/bin/bash: scripts/pahole-flags.sh: No such file or directory
make[1]: *** [Makefile:1871: init] Error 2
make[1]: *** [Makefile:1871: arch/openrisc] Error 2
/bin/bash: scripts/pahole-flags.sh: No such file or directory
/bin/bash: scripts/pahole-flags.sh: No such file or directory
/bin/bash: scripts/pahole-flags.sh: No such file or directory
/bin/bash: scripts/pahole-flags.sh: No such file or directory
/bin/bash: scripts/pahole-flags.sh: No such file or directory
/bin/bash: scripts/pahole-flags.sh: No such file or directory
/bin/bash: scripts/pahole-flags.sh: No such file or directory
make[1]: *** [Makefile:1871: security] Error 2
make[1]: *** [Makefile:1871: mm] Error 2
make[1]: *** [Makefile:1871: block] Error 2
make[1]: *** [Makefile:1871: kernel] Error 2
make[1]: *** [Makefile:1871: net] Error 2
make[1]: *** [Makefile:1871: lib] Error 2
make[1]: *** [Makefile:1871: fs] Error 2
make[1]: *** [Makefile:1871: drivers] Error 2
make[1]: *** [Makefile:1871: sound] Error 2
make[1]: Target '__all' not remade because of errors.
--
>> /bin/bash: scripts/pahole-flags.sh: No such file or directory
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 32669 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCHv2 bpf-next] kbuild: Unify options for BTF generation for vmlinux and modules
2021-10-26 21:24 [PATCHv2 bpf-next] kbuild: Unify options for BTF generation for vmlinux and modules Jiri Olsa
2021-10-27 13:44 ` kernel test robot
2021-10-27 14:57 ` kernel test robot
@ 2021-10-28 17:14 ` Jiri Olsa
2 siblings, 0 replies; 4+ messages in thread
From: Jiri Olsa @ 2021-10-28 17:14 UTC (permalink / raw)
To: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Masahiro Yamada, Michal Marek, Nick Desaulniers
Cc: netdev, bpf, linux-kbuild, Martin KaFai Lau, Song Liu,
Yonghong Song, John Fastabend, KP Singh
On Tue, Oct 26, 2021 at 11:24:19PM +0200, Jiri Olsa wrote:
> Using new PAHOLE_FLAGS variable to pass extra arguments to
> pahole for both vmlinux and modules BTF data generation.
>
> Adding new scripts/pahole-flags.sh script that detect and
> prints pahole options.
>
> Acked-by: Andrii Nakryiko <andrii@kernel.org>
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
I'm checking on reported build failures and will send v3
jirka
> ---
> v2 changes:
> - posting separately from original patchset
> - added Andrii's ack
>
> Makefile | 3 +++
> scripts/Makefile.modfinal | 2 +-
> scripts/link-vmlinux.sh | 11 +----------
> scripts/pahole-flags.sh | 20 ++++++++++++++++++++
> 4 files changed, 25 insertions(+), 11 deletions(-)
> create mode 100755 scripts/pahole-flags.sh
>
> diff --git a/Makefile b/Makefile
> index 437ccc66a1c2..ee514b80c62e 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -480,6 +480,8 @@ LZ4 = lz4c
> XZ = xz
> ZSTD = zstd
>
> +PAHOLE_FLAGS = $(shell PAHOLE=$(PAHOLE) scripts/pahole-flags.sh)
> +
> CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
> -Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
> NOSTDINC_FLAGS :=
> @@ -534,6 +536,7 @@ export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
> export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
> export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
> export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
> +export PAHOLE_FLAGS
>
> # Files to ignore in find ... statements
>
> diff --git a/scripts/Makefile.modfinal b/scripts/Makefile.modfinal
> index 1fb45b011e4b..7f39599e9fae 100644
> --- a/scripts/Makefile.modfinal
> +++ b/scripts/Makefile.modfinal
> @@ -40,7 +40,7 @@ quiet_cmd_ld_ko_o = LD [M] $@
> quiet_cmd_btf_ko = BTF [M] $@
> cmd_btf_ko = \
> if [ -f vmlinux ]; then \
> - LLVM_OBJCOPY="$(OBJCOPY)" $(PAHOLE) -J --btf_base vmlinux $@; \
> + LLVM_OBJCOPY="$(OBJCOPY)" $(PAHOLE) -J $(PAHOLE_FLAGS) --btf_base vmlinux $@; \
> $(RESOLVE_BTFIDS) -b vmlinux $@; \
> else \
> printf "Skipping BTF generation for %s due to unavailability of vmlinux\n" $@ 1>&2; \
> diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
> index d74cee5c4326..3ea7cece7c97 100755
> --- a/scripts/link-vmlinux.sh
> +++ b/scripts/link-vmlinux.sh
> @@ -205,7 +205,6 @@ vmlinux_link()
> gen_btf()
> {
> local pahole_ver
> - local extra_paholeopt=
>
> if ! [ -x "$(command -v ${PAHOLE})" ]; then
> echo >&2 "BTF: ${1}: pahole (${PAHOLE}) is not available"
> @@ -220,16 +219,8 @@ gen_btf()
>
> vmlinux_link ${1}
>
> - if [ "${pahole_ver}" -ge "118" ] && [ "${pahole_ver}" -le "121" ]; then
> - # pahole 1.18 through 1.21 can't handle zero-sized per-CPU vars
> - extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_vars"
> - fi
> - if [ "${pahole_ver}" -ge "121" ]; then
> - extra_paholeopt="${extra_paholeopt} --btf_gen_floats"
> - fi
> -
> info "BTF" ${2}
> - LLVM_OBJCOPY="${OBJCOPY}" ${PAHOLE} -J ${extra_paholeopt} ${1}
> + LLVM_OBJCOPY="${OBJCOPY}" ${PAHOLE} -J ${PAHOLE_FLAGS} ${1}
>
> # Create ${2} which contains just .BTF section but no symbols. Add
> # SHF_ALLOC because .BTF will be part of the vmlinux image. --strip-all
> diff --git a/scripts/pahole-flags.sh b/scripts/pahole-flags.sh
> new file mode 100755
> index 000000000000..2b99fc77019c
> --- /dev/null
> +++ b/scripts/pahole-flags.sh
> @@ -0,0 +1,20 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +
> +extra_paholeopt=
> +
> +if ! [ -x "$(command -v ${PAHOLE})" ]; then
> + return
> +fi
> +
> +pahole_ver=$(${PAHOLE} --version | sed -E 's/v([0-9]+)\.([0-9]+)/\1\2/')
> +
> +if [ "${pahole_ver}" -ge "118" ] && [ "${pahole_ver}" -le "121" ]; then
> + # pahole 1.18 through 1.21 can't handle zero-sized per-CPU vars
> + extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_vars"
> +fi
> +if [ "${pahole_ver}" -ge "121" ]; then
> + extra_paholeopt="${extra_paholeopt} --btf_gen_floats"
> +fi
> +
> +echo ${extra_paholeopt}
> --
> 2.31.1
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-10-28 17:14 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-10-26 21:24 [PATCHv2 bpf-next] kbuild: Unify options for BTF generation for vmlinux and modules Jiri Olsa
2021-10-27 13:44 ` kernel test robot
2021-10-27 14:57 ` kernel test robot
2021-10-28 17:14 ` Jiri Olsa
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