April 2024 - Linux-kselftest-mirror

kselftest/next kselftest-livepatch: 1 runs, 1 regressions (v6.9-rc4-19-g00ab560eb0e3)

by kernelci.org bot

kselftest/next kselftest-livepatch: 1 runs, 1 regressions (v6.9-rc4-19-g00ab560eb0e3) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ----------------+------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.9-rc4-19-g00a… Test: kselftest-livepatch Tree: kselftest Branch: next Describe: v6.9-rc4-19-g00ab560eb0e3 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 00ab560eb0e3f9725521c9fec2e8992e9e7e6c29 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ----------------+------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/661f669f409ca066214c42dd Results: 1 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.9-rc4-19-g00ab560eb0e3/arm/… HTML log: https://storage.kernelci.org//kselftest/next/v6.9-rc4-19-g00ab560eb0e3/arm/… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bookworm-kselftest/2024031… * kselftest-livepatch.shardfile-livepatch: https://kernelci.org/test/case/id/661f669f409ca066214c42df failing since 62 days (last pass: v6.8-rc1, first fail: v6.8-rc1-32-g345e8abe4c355) 2024-04-17T06:05:02.322922 / # 2024-04-17T06:05:02.332553 2024-04-17T06:05:07.476034 / # export NFS_ROOTFS='/var/lib/lava/dispatcher/tmp/13400391/extract-nfsrootfs-aa8qs62p' 2024-04-17T06:05:07.489336 export NFS_ROOTFS='/var/lib/lava/dispatcher/tmp/13400391/extract-nfsrootfs-aa8qs62p' 2024-04-17T06:05:09.716032 / # export NFS_SERVER_IP='192.168.201.1' 2024-04-17T06:05:09.726942 export NFS_SERVER_IP='192.168.201.1' 2024-04-17T06:05:09.843762 / # # 2024-04-17T06:05:09.851964 # 2024-04-17T06:05:09.969653 / # export SHELL=/bin/bash 2024-04-17T06:05:09.979867 export SHELL=/bin/bash ... (152 line(s) more)

1 year, 8 months

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[PATCH 0/1] selftest mm/mseal: style change

by jeffxu＠chromium.org

From: Jeff Xu <jeffxu(a)chromium.org> This patch is a follow up to the comments [1] on test code during mseal discussion. This is style only change to the selftest code, not to test code logic. Please apply on top of mseal v10 patch [2] [1] https://lore.kernel.org/all/e1744539-a843-468a-9101-ce7a08669394@collabora.… [2] https://lore.kernel.org/all/20240415163527.626541-1-jeffxu@chromium.org/ Thanks Jeff Xu (1): selftest mm/mseal: style change tools/testing/selftests/mm/mseal_test.c | 124 +++++++++++++++++------- tools/testing/selftests/mm/seal_elf.c | 3 - 2 files changed, 91 insertions(+), 36 deletions(-) -- 2.44.0.683.g7961c838ac-goog

1 year, 8 months

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kselftest/next build: 4 builds: 0 failed, 4 passed (v6.9-rc4-19-g00ab560eb0e3)

by kernelci.org bot

kselftest/next build: 4 builds: 0 failed, 4 passed (v6.9-rc4-19-g00ab560eb0e3) Full Build Summary: https://kernelci.org/build/kselftest/branch/next/kernel/v6.9-rc4-19-g00ab56… Tree: kselftest Branch: next Git Describe: v6.9-rc4-19-g00ab560eb0e3 Git Commit: 00ab560eb0e3f9725521c9fec2e8992e9e7e6c29 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git Built: 4 unique architectures ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- defconfig+kselftest+arm64-chromebook (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig+kselftest (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig+kselftest (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+kselftest (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches --- For more info write to <info(a)kernelci.org>

1 year, 8 months

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[PATCH 0/4] A new selftests/ directory for arm compatibility testing

by Dev Jain

This series introduces the selftests/arm directory, which tests 32 and 64-bit kernel compatibility with 32-bit ELFs running on the Aarch platform. The need for this bucket of tests is that 32 bit applications built on legacy ARM architecture must not break on the new Aarch64 platforms and the 64-bit kernel. The kernel must emulate the data structures, system calls and the registers according to Aarch32, when running a 32-bit process; this directory fills that testing requirement. One may find similarity between this directory and selftests/arm64; it is advisable to refer to that since a lot has been copied from there itself. The mm directory includes a test for checking 4GB limit of the virtual address space of a process. The signal directory contains two tests, following a common theme: mangle with arm_cpsr, dumped by the kernel to user space while invoking the signal handler; kernel must spot this illegal attempt and terminate the program by SEGV. The elf directory includes a test for checking the 32-bit status of the ELF. The series has been tested on 6.9.0-rc2, on Aarch64 platform. Testing remains to be done on Aaarch32. Dev Jain (4): selftests/arm: Add mm test selftests/arm: Add signal tests selftests/arm: Add elf test selftests: Add build infrastructure along with README tools/testing/selftests/Makefile | 1 + tools/testing/selftests/arm/Makefile | 57 ++++ tools/testing/selftests/arm/README | 31 +++ tools/testing/selftests/arm/elf/Makefile | 6 + tools/testing/selftests/arm/elf/parse_elf.c | 75 +++++ tools/testing/selftests/arm/mm/Makefile | 6 + tools/testing/selftests/arm/mm/compat_va.c | 94 +++++++ tools/testing/selftests/arm/signal/Makefile | 30 ++ .../selftests/arm/signal/test_signals.c | 27 ++ .../selftests/arm/signal/test_signals.h | 74 +++++ .../selftests/arm/signal/test_signals_utils.c | 257 ++++++++++++++++++ .../selftests/arm/signal/test_signals_utils.h | 128 +++++++++ .../signal/testcases/mangle_cpsr_aif_bits.c | 33 +++ .../mangle_cpsr_invalid_compat_toggle.c | 29 ++ 14 files changed, 848 insertions(+) create mode 100644 tools/testing/selftests/arm/Makefile create mode 100644 tools/testing/selftests/arm/README create mode 100644 tools/testing/selftests/arm/elf/Makefile create mode 100644 tools/testing/selftests/arm/elf/parse_elf.c create mode 100644 tools/testing/selftests/arm/mm/Makefile create mode 100644 tools/testing/selftests/arm/mm/compat_va.c create mode 100644 tools/testing/selftests/arm/signal/Makefile create mode 100644 tools/testing/selftests/arm/signal/test_signals.c create mode 100644 tools/testing/selftests/arm/signal/test_signals.h create mode 100644 tools/testing/selftests/arm/signal/test_signals_utils.c create mode 100644 tools/testing/selftests/arm/signal/test_signals_utils.h create mode 100644 tools/testing/selftests/arm/signal/testcases/mangle_cpsr_aif_bits.c create mode 100644 tools/testing/selftests/arm/signal/testcases/mangle_cpsr_invalid_compat_toggle.c -- 2.39.2

1 year, 8 months

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[PATCH net-next v2 0/6] selftests: drv-net: support testing with a remote system

by Jakub Kicinski

Hi! Implement support for tests which require access to a remote system / endpoint which can generate traffic. This series concludes the "groundwork" for upstream driver tests. I wanted to support the three models which came up in discussions: - SW testing with netdevsim - "local" testing with two ports on the same system in a loopback - "remote" testing via SSH so there is a tiny bit of an abstraction which wraps up how "remote" commands are executed. Otherwise hopefully there's nothing surprising. I'm only adding a ping test. I had a bigger one written but I was worried we'll get into discussing the details of the test itself and how I chose to hack up netdevsim, instead of the test infra... So that test will be a follow up :) v2: - rename endpoint -> remote - use 2001:db8:: v6 prefix - add a note about persistent SSH connections - add the kernel config v1: https://lore.kernel.org/all/20240412233705.1066444-1-kuba@kernel.org Jakub Kicinski (6): selftests: drv-net: add stdout to the command failed exception selftests: drv-net: add config for netdevsim selftests: drv-net: define endpoint structures selftests: drv-net: factor out parsing of the env selftests: drv-net: construct environment for running tests which require an endpoint selftests: drv-net: add a trivial ping test tools/testing/selftests/drivers/net/Makefile | 5 +- .../testing/selftests/drivers/net/README.rst | 33 ++++ tools/testing/selftests/drivers/net/config | 2 + .../selftests/drivers/net/lib/py/__init__.py | 1 + .../selftests/drivers/net/lib/py/env.py | 141 +++++++++++++++--- .../selftests/drivers/net/lib/py/remote.py | 13 ++ .../drivers/net/lib/py/remote_netns.py | 15 ++ .../drivers/net/lib/py/remote_ssh.py | 34 +++++ tools/testing/selftests/drivers/net/ping.py | 32 ++++ .../testing/selftests/net/lib/py/__init__.py | 1 + tools/testing/selftests/net/lib/py/netns.py | 31 ++++ tools/testing/selftests/net/lib/py/utils.py | 22 +-- 12 files changed, 301 insertions(+), 29 deletions(-) create mode 100644 tools/testing/selftests/drivers/net/config create mode 100644 tools/testing/selftests/drivers/net/lib/py/remote.py create mode 100644 tools/testing/selftests/drivers/net/lib/py/remote_netns.py create mode 100644 tools/testing/selftests/drivers/net/lib/py/remote_ssh.py create mode 100755 tools/testing/selftests/drivers/net/ping.py create mode 100644 tools/testing/selftests/net/lib/py/netns.py -- 2.44.0

1 year, 8 months

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[PATCH] selftests: Mark ksft_exit_fail_perror() as __noreturn

by Muhammad Usama Anjum

Let the compilers (clang) know that this function would just call exit() and would never return. It is needed to avoid false positive static analysis errors. All similar functions calling exit() unconditionally have been marked as __noreturn. Signed-off-by: Muhammad Usama Anjum <usama.anjum(a)collabora.com> --- This patch has been suggested [1] and tested on top of the following patches: - f07041728422 ("selftests: add ksft_exit_fail_perror()") which is in kselftest tree already - ("kselftest: Mark functions that unconditionally call exit() as __noreturn") would appear in tip/timers/urgent [1] https://lore.kernel.org/all/8254ab4d-9cb6-402e-80dd-d9ec70d77de5@linuxfound… --- tools/testing/selftests/kselftest.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index 050c5fd018400..b43a7a7ca4b40 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -372,7 +372,7 @@ static inline __printf(1, 2) int ksft_exit_fail_msg(const char *msg, ...) exit(KSFT_FAIL); } -static inline void ksft_exit_fail_perror(const char *msg) +static inline __noreturn void ksft_exit_fail_perror(const char *msg) { #ifndef NOLIBC ksft_exit_fail_msg("%s: %s (%d)\n", msg, strerror(errno), errno); -- 2.39.2

1 year, 8 months

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[PATCH V2] KVM: selftests: Take large C-state exit latency into consideration

by Zide Chen

Currently, the migration worker delays 1-10 us, assuming that one KVM_RUN iteration only takes a few microseconds. But if C-state exit latencies are large enough, for example, hundreds or even thousands of microseconds on server CPUs, it may happen that it's not able to bring the target CPU out of C-state before the migration worker starts to migrate it to the next CPU. If the system workload is light, most CPUs could be at a certain level of C-state, which may result in less successful migrations and fail the migration/KVM_RUN ratio sanity check. This patch adds a command line option to skip the sanity check in this case. Additionally, seems it's reasonable to randomize the length of usleep(), other than delay in a fixed pattern. V2: - removed the busy loop implementation - add the new "-s" option Signed-off-by: Zide Chen <zide.chen(a)intel.com> --- tools/testing/selftests/kvm/rseq_test.c | 37 +++++++++++++++++++++++-- 1 file changed, 34 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/kvm/rseq_test.c b/tools/testing/selftests/kvm/rseq_test.c index 28f97fb52044..515cfa32a925 100644 --- a/tools/testing/selftests/kvm/rseq_test.c +++ b/tools/testing/selftests/kvm/rseq_test.c @@ -150,7 +150,7 @@ static void *migration_worker(void *__rseq_tid) * Use usleep() for simplicity and to avoid unnecessary kernel * dependencies. */ - usleep((i % 10) + 1); + usleep((rand() % 10) + 1); } done = true; return NULL; @@ -186,12 +186,35 @@ static void calc_min_max_cpu(void) "Only one usable CPU, task migration not possible"); } +static void usage(const char *name) +{ + puts(""); + printf("usage: %s [-h] [-s]\n", name); + printf(" -s: skip the sanity check for successful KVM_RUN.\n"); + puts(""); + exit(0); +} + int main(int argc, char *argv[]) { int r, i, snapshot; struct kvm_vm *vm; struct kvm_vcpu *vcpu; u32 cpu, rseq_cpu; + bool skip_sanity_check = false; + int opt; + + while ((opt = getopt(argc, argv, "sh")) != -1) { + switch (opt) { + case 's': + skip_sanity_check = true; + break; + case 'h': + default: + usage(argv[0]); + break; + } + } r = sched_getaffinity(0, sizeof(possible_mask), &possible_mask); TEST_ASSERT(!r, "sched_getaffinity failed, errno = %d (%s)", errno, @@ -199,6 +222,8 @@ int main(int argc, char *argv[]) calc_min_max_cpu(); + srand(time(NULL)); + r = rseq_register_current_thread(); TEST_ASSERT(!r, "rseq_register_current_thread failed, errno = %d (%s)", errno, strerror(errno)); @@ -254,9 +279,15 @@ int main(int argc, char *argv[]) * getcpu() to stabilize. A 2:1 migration:KVM_RUN ratio is a fairly * conservative ratio on x86-64, which can do _more_ KVM_RUNs than * migrations given the 1us+ delay in the migration task. + * + * Another reason why it may have small migration:KVM_RUN ratio is that, + * on systems with large C-state exit latency, it may happen quite often + * that the scheduler is not able to wake up the target CPU before the + * vCPU thread is scheduled to another CPU. */ - TEST_ASSERT(i > (NR_TASK_MIGRATIONS / 2), - "Only performed %d KVM_RUNs, task stalled too much?", i); + TEST_ASSERT(skip_sanity_check || i > (NR_TASK_MIGRATIONS / 2), + "Only performed %d KVM_RUNs, task stalled too much? " + "Try to turn off C-states or run it with the -s option", i); pthread_join(migration_thread, NULL); -- 2.34.1

1 year, 8 months

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[PATCH v4 0/6] pids controller events rework

by Michal Koutný

This makes pids.events:max affine to pids.max limit. How are the new events supposed to be useful? - pids.events.local:max - tells that cgroup's limit is hit (too tight?) - pids.events:* - "only" directs top-down search to cgroups of interest Changes from v3 (https://lore.kernel.org/r/20240405170548.15234-1-mkoutny@suse.com) - use existing functions for TAP output in selftest (Muhammad) - formatting in selftest (Muhammad) - remove pids.events:max.imposed event, keep it internal (Johannes) - allow legacy behavior with a mount option - detach migration charging patches - drop RFC prefix Changes from v2 (https://lore.kernel.org/r/20200205134426.10570-1-mkoutny@suse.com) - implemented pids.events.local (Tejun) - added migration charging [1] https://lore.kernel.org/r/20230202155626.1829121-1-hannes@cmpxchg.org/ Michal Koutný (6): cgroup/pids: Remove superfluous zeroing cgroup/pids: Separate semantics of pids.events related to pids.max cgroup/pids: Make event counters hierarchical cgroup/pids: Add pids.events.local selftests: cgroup: Lexicographic order in Makefile selftests: cgroup: Add basic tests for pids controller Documentation/admin-guide/cgroup-v1/pids.rst | 3 +- Documentation/admin-guide/cgroup-v2.rst | 12 ++ include/linux/cgroup-defs.h | 7 +- kernel/cgroup/cgroup.c | 15 +- kernel/cgroup/pids.c | 131 +++++++++++--- tools/testing/selftests/cgroup/.gitignore | 11 +- tools/testing/selftests/cgroup/Makefile | 25 +-- tools/testing/selftests/cgroup/test_pids.c | 178 +++++++++++++++++++ 8 files changed, 341 insertions(+), 41 deletions(-) create mode 100644 tools/testing/selftests/cgroup/test_pids.c base-commit: 026e680b0a08a62b1d948e5a8ca78700bfac0e6e -- 2.44.0

1 year, 8 months

2
10
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[PATCH] selftests: exec: make binaries position independent

by Muhammad Usama Anjum

The -static overrides the -pie and binaries aren't position independent anymore. Use -static-pie instead which would produce a static and position independent binary. This has been caught by clang's warnings: clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument] Tested with both gcc and clang after this change. Fixes: 4d1cd3b2c5c1 ("tools/testing/selftests/exec: fix link error") Signed-off-by: Muhammad Usama Anjum <usama.anjum(a)collabora.com> --- tools/testing/selftests/exec/Makefile | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile index fb4472ddffd81..01940d9165d67 100644 --- a/tools/testing/selftests/exec/Makefile +++ b/tools/testing/selftests/exec/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -CFLAGS = -Wall +CFLAGS = -Wall #-Wunused-command-line-argument CFLAGS += -Wno-nonnull CFLAGS += -D_GNU_SOURCE @@ -29,8 +29,8 @@ $(OUTPUT)/execveat.denatured: $(OUTPUT)/execveat cp $< $@ chmod -x $@ $(OUTPUT)/load_address_4096: load_address.c - $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000 -pie -static $< -o $@ + $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000 -static-pie $< -o $@ $(OUTPUT)/load_address_2097152: load_address.c - $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x200000 -pie -static $< -o $@ + $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x200000 -static-pie $< -o $@ $(OUTPUT)/load_address_16777216: load_address.c - $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000000 -pie -static $< -o $@ + $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000000 -static-pie $< -o $@ -- 2.39.2

1 year, 8 months

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[PATCH v5 2/5] power: supply: core: Add POWER_SUPPLY_TECHNOLOGY_CAPACITOR

by Mike Looijmans

Another technology to store energy is a (super)capacitor. Signed-off-by: Mike Looijmans <mike.looijmans(a)topic.nl> --- (no changes since v1) Documentation/ABI/testing/sysfs-class-power | 2 +- drivers/power/supply/power_supply_core.c | 2 ++ drivers/power/supply/power_supply_sysfs.c | 1 + include/linux/power_supply.h | 1 + .../selftests/power_supply/test_power_supply_properties.sh | 2 +- 5 files changed, 6 insertions(+), 2 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index 7c81f0a25a48..1f6a04a17c81 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -488,7 +488,7 @@ Description: Valid values: "Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe", - "NiCd", "LiMn" + "NiCd", "LiMn", "Capacitor" What: /sys/class/power_supply/<supply_name>/voltage_avg, diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c index fefe938c9342..6d1327e16ff6 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -686,6 +686,8 @@ int power_supply_get_battery_info(struct power_supply *psy, info->technology = POWER_SUPPLY_TECHNOLOGY_LiFe; else if (!strcmp("lithium-ion-manganese-oxide", value)) info->technology = POWER_SUPPLY_TECHNOLOGY_LiMn; + else if (!strcmp("capacitor", value)) + info->technology = POWER_SUPPLY_TECHNOLOGY_CAPACITOR; else dev_warn(&psy->dev, "%s unknown battery type\n", value); } diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c index 0d2c3724d0bc..9d8540ce1f7e 100644 --- a/drivers/power/supply/power_supply_sysfs.c +++ b/drivers/power/supply/power_supply_sysfs.c @@ -119,6 +119,7 @@ static const char * const POWER_SUPPLY_TECHNOLOGY_TEXT[] = { [POWER_SUPPLY_TECHNOLOGY_LiFe] = "LiFe", [POWER_SUPPLY_TECHNOLOGY_NiCd] = "NiCd", [POWER_SUPPLY_TECHNOLOGY_LiMn] = "LiMn", + [POWER_SUPPLY_TECHNOLOGY_CAPACITOR] = "Capacitor", }; static const char * const POWER_SUPPLY_CAPACITY_LEVEL_TEXT[] = { diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 8e5705a56b85..af5a4e700881 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -78,6 +78,7 @@ enum { POWER_SUPPLY_TECHNOLOGY_LiFe, POWER_SUPPLY_TECHNOLOGY_NiCd, POWER_SUPPLY_TECHNOLOGY_LiMn, + POWER_SUPPLY_TECHNOLOGY_CAPACITOR, }; enum { diff --git a/tools/testing/selftests/power_supply/test_power_supply_properties.sh b/tools/testing/selftests/power_supply/test_power_supply_properties.sh index df272dfe1d2a..75f801eb86af 100755 --- a/tools/testing/selftests/power_supply/test_power_supply_properties.sh +++ b/tools/testing/selftests/power_supply/test_power_supply_properties.sh @@ -74,7 +74,7 @@ for DEVNAME in $supplies; do test_sysfs_prop_optional model_name test_sysfs_prop_optional manufacturer test_sysfs_prop_optional serial_number - test_sysfs_prop_optional_list technology "Unknown","NiMH","Li-ion","Li-poly","LiFe","NiCd","LiMn" + test_sysfs_prop_optional_list technology "Unknown","NiMH","Li-ion","Li-poly","LiFe","NiCd","LiMn","Capacitor" test_sysfs_prop_optional cycle_count -- 2.34.1 Met vriendelijke groet / kind regards, Mike Looijmans System Expert TOPIC Embedded Products B.V. Materiaalweg 4, 5681 RJ Best The Netherlands T: +31 (0) 499 33 69 69 E: mike.looijmans(a)topic.nl W: www.topic.nl Please consider the environment before printing this e-mail

1 year, 8 months

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