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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"The core clk framework is left largely untouched this time around
except for support for the newly ratified DT property
'assigned-clock-rates-u64'.
I'm much more excited about the support for loading DT overlays from
KUnit tests so that we can test how the clk framework parses DT nodes
during clk registration. The clk framework has some places that are
highly DeviceTree dependent so this charts the path to extend the
KUnit tests to cover even more framework code in the future. I've got
some more tests on the list that use the DT overlay support, but they
uncovered issues with clk unregistration that I'm still working on
fixing.
Outside the core, the clk driver update pile is dominated by Qualcomm
and Renesas SoCs, making it fairly usual. Looking closer, there are
fixes for things all over the place, like adding missing clk
frequencies or moving defines for the number of clks out of DT binding
headers into the drivers. There are even conversions of DT bindings to
YAML and migration away from strings to describe clk topology. Overall
it doesn't look unusual so I expect the new drivers to be where we'll
have fixes in the coming weeks.
Core:
- KUnit tests for clk registration and fixed rate basic clk type
- A couple more devm helpers, one consumer and one provider
- Support for assigned-clock-rates-u64
New Drivers:
- Camera, display and GPU clocks on Qualcomm SM4450
- Camera clocks on Qualcomm SM8150
- Rockchip rk3576 clks
- Microchip SAM9X7 clks
- Renesas RZ/V2H(P) (R9A09G057) clks
Updates:
- Mark a bunch of struct freq_tbl const to reduce .data usage
- Add Qualcomm MSM8226 A7PLL and Regera PLL support
- Fix the Qualcomm Lucid 5LPE PLL configuration sequence to not reuse
Trion, as they do differ
- A number of fixes to the Qualcomm SM8550 display clock driver
- Fold Qualcomm SM8650 display clock driver into SM8550 one
- Add missing clocks and GDSCs needed for audio on Qualcomm MSM8998
- Add missing USB MP resets, GPLL9, and QUPv3 DFS to Qualcomm SC8180X
- Fix sdcc clk frequency tables on Qualcomm SC8180X
- Drop the Qualcomm SM8150 gcc_cpuss_ahb_clk_src
- Mark Qualcomm PCIe GDSCs as RET_ON on sm8250 and sm8540 to avoid
them turning off during suspend
- Use the HW_CTRL mechanism on Qualcomm SM8550 video clock controller
GDSCs
- Get rid of CLK_NR_CLKS defines in Rockchip DT binding headers
- Some fixes for Rockchip rk3228 and rk3588
- Exynos850: Add clock for Thermal Management Unit
- Exynos7885: Fix duplicated ID in the header, add missing TOP PLLs
and add clocks for USB block in the FSYS clock controller
- ExynosAutov9: Add DPUM clock controller
- ExynosAutov920: Add new (first) clock controllers: TOP and PERIC0
(and a bit more complete bindings)
- Use clk_hw pointer instead of fw_name for acm_aud_clk[0-1]_sel
clocks on i.MX8Q as parents in ACM provider
- Add i.MX95 NETCMIX support to the block control provider
- Fix parents for ENETx_REF_SEL clocks on i.MX6UL
- Add USB clocks, resets and power domains on Renesas RZ/G3S
- Add Generic Timer (GTM), I2C Bus Interface (RIIC), SD/MMC Host
Interface (SDHI) and Watchdog Timer (WDT) clocks and resets on
Renesas RZ/V2H
- Add PCIe, PWM, and CAN-FD clocks on Renesas R-Car V4M
- Add LCD controller clocks and resets on Renesas RZ/G2UL
- Add DMA clocks and resets on Renesas RZ/G3S
- Add fractional multiplication PLL support on Renesas R-Car Gen4
- Document support for the Renesas RZ/G2M v3.0 (r8a774a3) SoC
- Support for the Microchip SAM9X7 SoC as follows:
- Updates for the Microchip PLL drivers
- DT binding documentation updates (for the new clock driver and for
the slow clock controller that SAM9X7 is using)
- A fix for the Microchip SAMA7G5 clock driver to avoid allocating
more memory than necessary
- Constify some Amlogic structs
- Add SM1 eARC clocks for Amlogic
- Introduce a symbol namespace for Amlogic clock specific symbols
- Add reset controller support to audiomix block control on i.MX
- Add CLK_SET_RATE_PARENT flag to all audiomix clocks and to i.MX7D
lcdif_pixel_src clock
- Fix parent clocks for earc_phy and audpll on i.MX8MP
- Fix default parents for enet[12]_ref_sel on i.MX6UL
- Add ops in composite 8M and 93 that allow no-op on disable
- Add check for PCC present bit on composite 7ULP register
- Fix fractional part for fracn-gppll on prepare in i.MX
- Fix clock tree update for TF-A managed clocks on i.MX8M
- Drop CLK_SET_PARENT_GATE for DRAM mux on i.MX7D
- Add the SAI7 IPG clock for i.MX8MN
- Mark the 'nand_usdhc_bus' clock as non-critical on i.MX8MM
- Add LVDS bypass clocks on i.MX8QXP
- Add muxes for MIPI and PHY ref clocks on i.MX
- Reorder dc0_bypass0_clk, lcd_pxl and dc1_disp clocks on i.MX8QXP
- Add 1039.5MHz and 800MHz rates to fracn-gppll table on i.MX
- Add CLK_SET_RATE_PARENT for media_disp pixel clocks on i.MX8QXP
- Add some module descriptions to the i.MX generic and the i.MXRT1050
driver
- Fix return value for bypass for composite i.MX7ULP
- Move Mediatek clk bindings to clock/
- Convert some more clk bindings to dt schema"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (180 commits)
clk: Switch back to struct platform_driver::remove()
dt-bindings: clock, reset: fix top-comment indentation rk3576 headers
clk: rockchip: remove unused mclk_pdm0_p/pdm0_p definitions
clk: provide devm_clk_get_optional_enabled_with_rate()
clk: fixed-rate: add devm_clk_hw_register_fixed_rate_parent_data()
clk: imx6ul: fix clock parent for IMX6UL_CLK_ENETx_REF_SEL
clk: renesas: r9a09g057: Add clock and reset entries for GTM/RIIC/SDHI/WDT
clk: renesas: rzv2h: Add support for dynamic switching divider clocks
clk: renesas: r9a08g045: Add clocks, resets and power domains for USB
clk: rockchip: fix error for unknown clocks
clk: rockchip: rk3588: drop unused code
clk: rockchip: Add clock controller for the RK3576
clk: rockchip: Add new pll type pll_rk3588_ddr
dt-bindings: clock, reset: Add support for rk3576
dt-bindings: clock: rockchip,rk3588-cru: drop unneeded assigned-clocks
clk: rockchip: rk3588: Fix 32k clock name for pmu_24m_32k_100m_src_p
clk: imx95: enable the clock of NETCMIX block control
dt-bindings: clock: add RMII clock selection
dt-bindings: clock: add i.MX95 NETCMIX block control
clk: imx: imx8: Use clk_hw pointer for self registered clock in clk_parent_data
...
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit updates from Shuah Khan:
- a new int_pow test suite
- documentation update to clarify filename best practices
- kernel-doc fix for EXPORT_SYMBOL_IF_KUNIT
- change to build compile_commands.json automatically instead of
requiring a manual build
* tag 'linux_kselftest-kunit-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
lib/math: Add int_pow test suite
kunit: tool: Build compile_commands.json
kunit: Fix kernel-doc for EXPORT_SYMBOL_IF_KUNIT
Documentation: KUnit: Update filename best practices
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Add a missing kerneldoc comment for the 'test' test context parameter,
fixing the following warning:
include/kunit/test.h:492: warning: Function parameter or struct member 'test' not described in 'kunit_kfree_const'
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/lkml/20240827160631.67e121ed@canb.auug.org.au/
Fixes: f2c6dbd22017 ("kunit: Device wrappers should also manage driver name")
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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While kunit/visibility.h is today not included in any generated
kernel documentation, also likely due to the fact that none of the
existing comments are correctly recognized as kernel-doc, but once
we decide to add this header and fix the tool, there will be:
../include/kunit/visibility.h:61: warning: Function parameter or
struct member 'symbol' not described in 'EXPORT_SYMBOL_IF_KUNIT'
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Acked-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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kunit_driver_create() accepts a name for the driver, but does not copy
it, so if that name is either on the stack, or otherwise freed, we end
up with a use-after-free when the driver is cleaned up.
Instead, strdup() the name, and manage it as another KUnit allocation.
As there was no existing kunit_kstrdup(), we add one. Further, add a
kunit_ variant of strdup_const() and kfree_const(), so we don't need to
allocate and manage the string in the majority of cases where it's a
constant.
However, these are inline functions, and is_kernel_rodata() only works
for built-in code. This causes problems in two cases:
- If kunit is built as a module, __{start,end}_rodata is not defined.
- If a kunit test using these functions is built as a module, it will
suffer the same fate.
This fixes a KASAN splat with overflow.overflow_allocation_test, when
built as a module.
Restrict the is_kernel_rodata() case to when KUnit is built as a module,
which fixes the first case, at the cost of losing the optimisation.
Also, make kunit_{kstrdup,kfree}_const non-inline, so that other modules
using them will not accidentally depend on is_kernel_rodata(). If KUnit
is built-in, they'll benefit from the optimisation, if KUnit is not,
they won't, but the string will be properly duplicated.
Fixes: d03c720e03bd ("kunit: Add APIs for managing devices")
Reported-by: Nico Pache <npache@redhat.com>
Closes: https://groups.google.com/g/kunit-dev/c/81V9b9QYON0
Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Rae Moar <rmoar@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Tested-by: Rae Moar <rmoar@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Unit tests are more ergonomic and simpler to understand if they don't
have to hoist a bunch of code into the test harness init and exit
functions. Add some test managed wrappers for the clk APIs so that clk
unit tests can write more code in the actual test and less code in the
harness.
Only add APIs that are used for now. More wrappers can be added in the
future as necessary.
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: Rae Moar <rmoar@google.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240718210513.3801024-7-sboyd@kernel.org
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Introduce KUnit resource wrappers around platform_driver_register(),
platform_device_alloc(), and platform_device_add() so that test authors
can register platform drivers/devices from their tests and have the
drivers/devices automatically be unregistered when the test is done.
This makes test setup code simpler when a platform driver or platform
device is needed. Add a few test cases at the same time to make sure the
APIs work as intended.
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Reviewed-by: David Gow <davidgow@google.com>
Cc: Rae Moar <rmoar@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240718210513.3801024-6-sboyd@kernel.org
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Add test managed wrappers for of_overlay_apply() that automatically
removes the overlay when the test is finished. This API is intended for
use by KUnit tests that test code which relies on 'struct device_node's
and of_*() APIs.
KUnit tests will call of_overlay_apply_kunit() to load an overlay that's
been built into the kernel image. When the test is complete, the overlay
will be removed.
This has a few benefits:
1) It keeps the tests hermetic because the overlay is removed when the
test is complete. Tests won't even be aware that an overlay was
loaded in another test.
2) The overlay code can live right next to the unit test that loads it.
The overlay and the unit test can be compiled into one kernel module
if desired.
3) We can test different device tree configurations by loading
different overlays. The overlays can be written for a specific test,
and there can be many of them loaded per-test without needing to jam
all possible combinations into one DTB.
4) It also allows KUnit to test device tree dependent code on any
architecture, not just UML. This allows KUnit tests to test
architecture specific device tree code.
There are some potential pitfalls though. Test authors need to be
careful to not overwrite properties in the live tree. The easiest way to
do this is to add and remove nodes with a 'kunit-' prefix, almost
guaranteeing that the same node won't be present in the tree loaded at
boot.
Suggested-by: Rob Herring <robh@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Saravana Kannan <saravanak@google.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240718210513.3801024-3-sboyd@kernel.org
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Introduces KUNIT_ASSERT_MEMEQ and KUNIT_ASSERT_MEMNEQ macros
to provide assert-type equivalents for memory comparison.
While KUNIT_EXPECT_MEMEQ and KUNIT_EXPECT_MEMNEQ are available for
expectations, the addition of these new macros ensures that assertions
can also be used for memory comparisons, enhancing the consistency and
completeness of the kunit framework.
Signed-off-by: Eric Chan <ericchancf@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Both KUNIT_FAIL and KUNIT_ASSERT_FAILURE defined to KUNIT_FAIL_ASSERTION
with different tpye of kunit_assert_type. The current naming of
KUNIT_ASSERT_FAILURE and KUNIT_FAIL_ASSERTION is confusing due to their
similarities. To improve readability and symmetry, renames
KUNIT_ASSERT_FAILURE to KUNIT_FAIL_AND_ABORT. Makes the naming
consistent, with KUNIT_FAIL and KUNIT_FAIL_AND_ABORT being symmetrical.
Additionally, an explanation for KUNIT_FAIL_AND_ABORT has been added to
clarify its usage.
Signed-off-by: Eric Chan <ericchancf@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The current comment for KUNIT_ASSERT_STRNEQ incorrectly describes it as
an expectation. Since KUNIT_ASSERT_STRNEQ is an assertion, updates the
comment to correctly refer to it as such.
Signed-off-by: Eric Chan <ericchancf@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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For tests that need to allocate using vm_mmap() (e.g. usercopy and
execve), provide the interface to have the allocation tracked by KUnit
itself. This requires bringing up a placeholder userspace mm.
This combines my earlier attempt at this with Mark Rutland's version[1].
Normally alloc_mm() and arch_pick_mmap_layout() aren't exported for
modules, so export these only for KUnit testing.
Link: https://lore.kernel.org/lkml/20230321122514.1743889-2-mark.rutland@arm.com/ [1]
Co-developed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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There are multiple assertion formatting functions in the `assert.c`
file, which are not covered with tests yet. Implement the KUnit test
for these functions.
The test consists of 11 test cases for the following functions:
1) 'is_literal'
2) 'is_str_literal'
3) 'kunit_assert_prologue', test case for multiple assert types
4) 'kunit_assert_print_msg'
5) 'kunit_unary_assert_format'
6) 'kunit_ptr_not_err_assert_format'
7) 'kunit_binary_assert_format'
8) 'kunit_binary_ptr_assert_format'
9) 'kunit_binary_str_assert_format'
10) 'kunit_assert_hexdump'
11) 'kunit_mem_assert_format'
The test aims at maximizing the branch coverage for the assertion
formatting functions.
As you can see, it covers some of the static helper functions as
well, so mark the static functions in `assert.c` as 'VISIBLE_IF_KUNIT'
and conditionally export them with EXPORT_SYMBOL_IF_KUNIT. Add the
corresponding definitions to `assert.h`.
Build the assert test when CONFIG_KUNIT_TEST is enabled, similar to
how it is done for the string stream test.
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Acked-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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This helps identify the location of test faults with opportunistic calls
to _KUNIT_SAVE_LOC(). This can be useful while writing tests or
debugging them. It is possible to call KUNIT_SUCCESS() to explicit save
last location.
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Gow <davidgow@google.com>
Cc: Rae Moar <rmoar@google.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Link: https://lore.kernel.org/r/20240408074625.65017-7-mic@digikod.net
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Previously, when a kernel test thread crashed (e.g. NULL pointer
dereference, general protection fault), the KUnit test hanged for 30
seconds and exited with a timeout error.
Fix this issue by waiting on task_struct->vfork_done instead of the
custom kunit_try_catch.try_completion, and track the execution state by
initially setting try_result with -EINTR and only setting it to 0 if
the test passed.
Fix kunit_generic_run_threadfn_adapter() signature by returning 0
instead of calling kthread_complete_and_exit(). Because thread's exit
code is never checked, always set it to 0 to make it clear. To make
this explicit, export kthread_exit() for KUnit tests built as module.
Fix the -EINTR error message, which couldn't be reached until now.
This is tested with a following patch.
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: David Gow <davidgow@google.com>
Tested-by: Rae Moar <rmoar@google.com>
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Link: https://lore.kernel.org/r/20240408074625.65017-5-mic@digikod.net
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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KUnit's assertion macros have variants which accept a printf format
string, to allow tests to specify a more detailed message on failure.
These (and the related KUNIT_FAIL() macro) ultimately wrap the
__kunit_do_failed_assertion() function, which accepted a printf format
specifier, but did not have the __printf attribute, so gcc couldn't warn
on incorrect agruments.
It turns out there were quite a few tests with such incorrect arguments.
Add the __printf() specifier now that we've fixed these errors, to
prevent them from recurring.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: David Gow <davidgow@google.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"The most interesting thing is probably the networking structs
reorganization and a significant amount of changes is around
self-tests.
Core & protocols:
- Analyze and reorganize core networking structs (socks, netdev,
netns, mibs) to optimize cacheline consumption and set up build
time warnings to safeguard against future header changes
This improves TCP performances with many concurrent connections up
to 40%
- Add page-pool netlink-based introspection, exposing the memory
usage and recycling stats. This helps indentify bad PP users and
possible leaks
- Refine TCP/DCCP source port selection to no longer favor even
source port at connect() time when IP_LOCAL_PORT_RANGE is set. This
lowers the time taken by connect() for hosts having many active
connections to the same destination
- Refactor the TCP bind conflict code, shrinking related socket
structs
- Refactor TCP SYN-Cookie handling, as a preparation step to allow
arbitrary SYN-Cookie processing via eBPF
- Tune optmem_max for 0-copy usage, increasing the default value to
128KB and namespecifying it
- Allow coalescing for cloned skbs coming from page pools, improving
RX performances with some common configurations
- Reduce extension header parsing overhead at GRO time
- Add bridge MDB bulk deletion support, allowing user-space to
request the deletion of matching entries
- Reorder nftables struct members, to keep data accessed by the
datapath first
- Introduce TC block ports tracking and use. This allows supporting
multicast-like behavior at the TC layer
- Remove UAPI support for retired TC qdiscs (dsmark, CBQ and ATM) and
classifiers (RSVP and tcindex)
- More data-race annotations
- Extend the diag interface to dump TCP bound-only sockets
- Conditional notification of events for TC qdisc class and actions
- Support for WPAN dynamic associations with nearby devices, to form
a sub-network using a specific PAN ID
- Implement SMCv2.1 virtual ISM device support
- Add support for Batman-avd mulicast packet type
BPF:
- Tons of verifier improvements:
- BPF register bounds logic and range support along with a large
test suite
- log improvements
- complete precision tracking support for register spills
- track aligned STACK_ZERO cases as imprecise spilled registers.
This improves the verifier "instructions processed" metric from
single digit to 50-60% for some programs
- support for user's global BPF subprogram arguments with few
commonly requested annotations for a better developer
experience
- support tracking of BPF_JNE which helps cases when the compiler
transforms (unsigned) "a > 0" into "if a == 0 goto xxx" and the
like
- several fixes
- Add initial TX metadata implementation for AF_XDP with support in
mlx5 and stmmac drivers. Two types of offloads are supported right
now, that is, TX timestamp and TX checksum offload
- Fix kCFI bugs in BPF all forms of indirect calls from BPF into
kernel and from kernel into BPF work with CFI enabled. This allows
BPF to work with CONFIG_FINEIBT=y
- Change BPF verifier logic to validate global subprograms lazily
instead of unconditionally before the main program, so they can be
guarded using BPF CO-RE techniques
- Support uid/gid options when mounting bpffs
- Add a new kfunc which acquires the associated cgroup of a task
within a specific cgroup v1 hierarchy where the latter is
identified by its id
- Extend verifier to allow bpf_refcount_acquire() of a map value
field obtained via direct load which is a use-case needed in
sched_ext
- Add BPF link_info support for uprobe multi link along with bpftool
integration for the latter
- Support for VLAN tag in XDP hints
- Remove deprecated bpfilter kernel leftovers given the project is
developed in user-space (https://github.com/facebook/bpfilter)
Misc:
- Support for parellel TC self-tests execution
- Increase MPTCP self-tests coverage
- Updated the bridge documentation, including several so-far
undocumented features
- Convert all the net self-tests to run in unique netns, to avoid
random failures due to conflict and allow concurrent runs
- Add TCP-AO self-tests
- Add kunit tests for both cfg80211 and mac80211
- Autogenerate Netlink families documentation from YAML spec
- Add yml-gen support for fixed headers and recursive nests, the tool
can now generate user-space code for all genetlink families for
which we have specs
- A bunch of additional module descriptions fixes
- Catch incorrect freeing of pages belonging to a page pool
Driver API:
- Rust abstractions for network PHY drivers; do not cover yet the
full C API, but already allow implementing functional PHY drivers
in rust
- Introduce queue and NAPI support in the netdev Netlink interface,
allowing complete access to the device <> NAPIs <> queues
relationship
- Introduce notifications filtering for devlink to allow control
application scale to thousands of instances
- Improve PHY validation, requesting rate matching information for
each ethtool link mode supported by both the PHY and host
- Add support for ethtool symmetric-xor RSS hash
- ACPI based Wifi band RFI (WBRF) mitigation feature for the AMD
platform
- Expose pin fractional frequency offset value over new DPLL generic
netlink attribute
- Convert older drivers to platform remove callback returning void
- Add support for PHY package MMD read/write
New hardware / drivers:
- Ethernet:
- Octeon CN10K devices
- Broadcom 5760X P7
- Qualcomm SM8550 SoC
- Texas Instrument DP83TG720S PHY
- Bluetooth:
- IMC Networks Bluetooth radio
Removed:
- WiFi:
- libertas 16-bit PCMCIA support
- Atmel at76c50x drivers
- HostAP ISA/PCMCIA style 802.11b driver
- zd1201 802.11b USB dongles
- Orinoco ISA/PCMCIA 802.11b driver
- Aviator/Raytheon driver
- Planet WL3501 driver
- RNDIS USB 802.11b driver
Driver updates:
- Ethernet high-speed NICs:
- Intel (100G, ice, idpf):
- allow one by one port representors creation and removal
- add temperature and clock information reporting
- add get/set for ethtool's header split ringparam
- add again FW logging
- adds support switchdev hardware packet mirroring
- iavf: implement symmetric-xor RSS hash
- igc: add support for concurrent physical and free-running
timers
- i40e: increase the allowable descriptors
- nVidia/Mellanox:
- Preparation for Socket-Direct multi-dev netdev. That will
allow in future releases combining multiple PFs devices
attached to different NUMA nodes under the same netdev
- Broadcom (bnxt):
- TX completion handling improvements
- add basic ntuple filter support
- reduce MSIX vectors usage for MQPRIO offload
- add VXLAN support, USO offload and TX coalesce completion
for P7
- Marvell Octeon EP:
- xmit-more support
- add PF-VF mailbox support and use it for FW notifications
for VFs
- Wangxun (ngbe/txgbe):
- implement ethtool functions to operate pause param, ring
param, coalesce channel number and msglevel
- Netronome/Corigine (nfp):
- add flow-steering support
- support UDP segmentation offload
- Ethernet NICs embedded, slower, virtual:
- Xilinx AXI: remove duplicate DMA code adopting the dma engine
driver
- stmmac: add support for HW-accelerated VLAN stripping
- TI AM654x sw: add mqprio, frame preemption & coalescing
- gve: add support for non-4k page sizes.
- virtio-net: support dynamic coalescing moderation
- nVidia/Mellanox Ethernet datacenter switches:
- allow firmware upgrade without a reboot
- more flexible support for bridge flooding via the compressed
FID flooding mode
- Ethernet embedded switches:
- Microchip:
- fine-tune flow control and speed configurations in KSZ8xxx
- KSZ88X3: enable setting rmii reference
- Renesas:
- add jumbo frames support
- Marvell:
- 88E6xxx: add "eth-mac" and "rmon" stats support
- Ethernet PHYs:
- aquantia: add firmware load support
- at803x: refactor the driver to simplify adding support for more
chip variants
- NXP C45 TJA11xx: Add MACsec offload support
- Wifi:
- MediaTek (mt76):
- NVMEM EEPROM improvements
- mt7996 Extremely High Throughput (EHT) improvements
- mt7996 Wireless Ethernet Dispatcher (WED) support
- mt7996 36-bit DMA support
- Qualcomm (ath12k):
- support for a single MSI vector
- WCN7850: support AP mode
- Intel (iwlwifi):
- new debugfs file fw_dbg_clear
- allow concurrent P2P operation on DFS channels
- Bluetooth:
- QCA2066: support HFP offload
- ISO: more broadcast-related improvements
- NXP: better recovery in case receiver/transmitter get out of sync"
* tag 'net-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1714 commits)
lan78xx: remove redundant statement in lan78xx_get_eee
lan743x: remove redundant statement in lan743x_ethtool_get_eee
bnxt_en: Fix RCU locking for ntuple filters in bnxt_rx_flow_steer()
bnxt_en: Fix RCU locking for ntuple filters in bnxt_srxclsrldel()
bnxt_en: Remove unneeded variable in bnxt_hwrm_clear_vnic_filter()
tcp: Revert no longer abort SYN_SENT when receiving some ICMP
Revert "mlx5 updates 2023-12-20"
Revert "net: stmmac: Enable Per DMA Channel interrupt"
ipvlan: Remove usage of the deprecated ida_simple_xx() API
ipvlan: Fix a typo in a comment
net/sched: Remove ipt action tests
net: stmmac: Use interrupt mode INTM=1 for per channel irq
net: stmmac: Add support for TX/RX channel interrupt
net: stmmac: Make MSI interrupt routine generic
dt-bindings: net: snps,dwmac: per channel irq
net: phy: at803x: make read_status more generic
net: phy: at803x: add support for cdt cross short test for qca808x
net: phy: at803x: refactor qca808x cable test get status function
net: phy: at803x: generalize cdt fault length function
net: ethernet: cortina: Drop TSO support
...
|
|
Add NULL checks to KUNIT_BINARY_STR_ASSERTION() so that it will fail
cleanly if either pointer is NULL, instead of causing a NULL pointer
dereference in the strcmp().
A test failure could be that a string is unexpectedly NULL. This could
be trapped by KUNIT_ASSERT_NOT_NULL() but that would terminate the test
at that point. It's preferable that the KUNIT_EXPECT_STR*() macros can
handle NULL pointers as a failure.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
Swap the arguments to typecheck_fn() in kunit_activate_static_stub()
so that real_fn_addr can be either the function itself or a pointer
to that function.
This is useful to simplify redirecting static functions in a module.
Having to pass the actual function meant that it must be exported
from the module. Either making the 'static' and EXPORT_SYMBOL*()
conditional (which makes the code messy), or change it to always
exported (which increases the export namespace and prevents the
compiler inlining a trivial stub function in non-test builds).
With the original definition of kunit_activate_static_stub() the
address of real_fn_addr was passed to typecheck_fn() as the type to
be passed. This meant that if real_fn_addr was a pointer-to-function
it would resolve to a ** instead of a *, giving an error like this:
error: initialization of ‘int (**)(int)’ from incompatible pointer
type ‘int (*)(int)’ [-Werror=incompatible-pointer-types]
kunit_activate_static_stub(test, add_one_fn_ptr, subtract_one);
| ^~~~~~~~~~~~
./include/linux/typecheck.h:21:25: note: in definition of macro
‘typecheck_fn’
21 | ({ typeof(type) __tmp = function; \
Swapping the arguments to typecheck_fn makes it take the type of a
pointer to the replacement function. Either a function or a pointer
to function can be assigned to that. For example:
static int some_function(int x)
{
/* whatever */
}
int (* some_function_ptr)(int) = some_function;
static int replacement(int x)
{
/* whatever */
}
Then:
kunit_activate_static_stub(test, some_function, replacement);
yields:
typecheck_fn(typeof(&replacement), some_function);
and:
kunit_activate_static_stub(test, some_function_ptr, replacement);
yields:
typecheck_fn(typeof(&replacement), some_function_ptr);
The two typecheck_fn() then resolve to:
int (*__tmp)(int) = some_function;
and
int (*__tmp)(int) = some_function_ptr;
Both of these are valid. In the first case the compiler inserts
an implicit '&' to take the address of the supplied function, and
in the second case the RHS is already a pointer to the same type.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
Add a simple convenience helper to allocate and zero fill an SKB for the
use by a kunit test. Also provide a way to free it again in case that
may be desirable.
This simply mirrors the kunit_kmalloc API.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: David Gow <davidgow@google.com>
Link: https://msgid.link/20231220151952.415232-3-benjamin@sipsolutions.net
[adjust file description as discussed]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
The existing KUNIT_ARRAY_PARAM macro requires a separate function to
get the description. However, in a lot of cases the description can
just be copied directly from the array. Add a second macro that
avoids having to write a static function just for a single strscpy.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: David Gow <davidgow@google.com>
Link: https://msgid.link/20231220151952.415232-2-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
Tests for drivers often require a struct device to pass to other
functions. While it's possible to create these with
root_device_register(), or to use something like a platform device, this
is both a misuse of those APIs, and can be difficult to clean up after,
for example, a failed assertion.
Add some KUnit-specific functions for registering and unregistering a
struct device:
- kunit_device_register()
- kunit_device_register_with_driver()
- kunit_device_unregister()
These helpers allocate a on a 'kunit' bus which will either probe the
driver passed in (kunit_device_register_with_driver), or will create a
stub driver (kunit_device_register) which is cleaned up on test shutdown.
Devices are automatically unregistered on test shutdown, but can be
manually unregistered earlier with kunit_device_unregister() in order
to, for example, test device release code.
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
Add is_init test attribute of type bool. Add to_string, get, and filter
methods to lib/kunit/attributes.c.
Mark each of the tests in the init section with the is_init=true attribute.
Add is_init to the attributes documentation.
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Rae Moar <rmoar@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
Add KUNIT_INIT_TABLE to the INIT_DATA linker section.
Alter the KUnit macros to create init tests:
kunit_test_init_section_suites
Update lib/kunit/executor.c to run both the suites in KUNIT_TABLE and
KUNIT_INIT_TABLE.
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Rae Moar <rmoar@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
KUnit's deferred action API accepts a void(*)(void *) function pointer
which is called when the test is exited. However, we very frequently
want to use existing functions which accept a single pointer, but which
may not be of type void*. While this is probably dodgy enough to be on
the wrong side of the C standard, it's been often used for similar
callbacks, and gcc's -Wcast-function-type seems to ignore cases where
the only difference is the type of the argument, assuming it's
compatible (i.e., they're both pointers to data).
However, clang 16 has introduced -Wcast-function-type-strict, which no
longer permits any deviation in function pointer type. This seems to be
because it'd break CFI, which validates the type of function calls.
This rather ruins our attempts to cast functions to defer them, and
leaves us with a few options. The one we've chosen is to implement a
macro which will generate a wrapper function which accepts a void*, and
casts the argument to the appropriate type.
For example, if you were trying to wrap:
void foo_close(struct foo *handle);
you could use:
KUNIT_DEFINE_ACTION_WRAPPER(kunit_action_foo_close,
foo_close,
struct foo *);
This would create a new kunit_action_foo_close() function, of type
kunit_action_t, which could be passed into kunit_add_action() and
similar functions.
In addition to defining this macro, update KUnit and its tests to use
it.
Link: https://github.com/ClangBuiltLinux/linux/issues/1750
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
Replace the fixed-size log buffer with a string_stream so that the
log can grow as lines are added.
The existing kunit log tests have been updated for using a
string_stream as the log. No new test have been added because there
are already tests for the underlying string_stream.
As the log tests now depend on string_stream functions they cannot
build when kunit-test is a module. They have been surrounded by
a #if to replace them with skipping version when the test is
build as a module. Though this isn't pretty, it avoids moving
code to another file while that code is also being changed.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- An extensive rework of kexec and crash Kconfig from Eric DeVolder
("refactor Kconfig to consolidate KEXEC and CRASH options")
- kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a
couple of macros to args.h")
- gdb feature work from Kuan-Ying Lee ("Add GDB memory helper
commands")
- vsprintf inclusion rationalization from Andy Shevchenko
("lib/vsprintf: Rework header inclusions")
- Switch the handling of kdump from a udev scheme to in-kernel
handling, by Eric DeVolder ("crash: Kernel handling of CPU and memory
hot un/plug")
- Many singleton patches to various parts of the tree
* tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (81 commits)
document while_each_thread(), change first_tid() to use for_each_thread()
drivers/char/mem.c: shrink character device's devlist[] array
x86/crash: optimize CPU changes
crash: change crash_prepare_elf64_headers() to for_each_possible_cpu()
crash: hotplug support for kexec_load()
x86/crash: add x86 crash hotplug support
crash: memory and CPU hotplug sysfs attributes
kexec: exclude elfcorehdr from the segment digest
crash: add generic infrastructure for crash hotplug support
crash: move a few code bits to setup support of crash hotplug
kstrtox: consistently use _tolower()
kill do_each_thread()
nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
scripts/bloat-o-meter: count weak symbol sizes
treewide: drop CONFIG_EMBEDDED
lockdep: fix static memory detection even more
lib/vsprintf: declare no_hash_pointers in sprintf.h
lib/vsprintf: split out sprintf() and friends
kernel/fork: stop playing lockless games for exe_file replacement
adfs: delete unused "union adfs_dirtail" definition
...
|
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Patch series "kernel.h: Split out a couple of macros to args.h", v4.
There are macros in kernel.h that can be used outside of that header.
Split them to args.h and replace open coded variants.
This patch (of 4):
kernel.h is being used as a dump for all kinds of stuff for a long time.
The COUNT_ARGS() and CONCATENATE() macros may be used in some places
without need of the full kernel.h dependency train with it.
Here is the attempt on cleaning it up by splitting out these macros().
While at it, include new header where it's being used.
Link: https://lkml.kernel.org/r/20230718211147.18647-1-andriy.shevchenko@linux.intel.com
Link: https://lkml.kernel.org/r/20230718211147.18647-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> [PCI]
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: Daniel Latypov <dlatypov@google.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Gow <davidgow@google.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
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We mix up KUNIT_TRIGGER_STATIC_STUB and KUNIT_STATIC_STUB_REDIRECT in
static_stub header. Just correct KUNIT_TRIGGER_STATIC_STUB to
KUNIT_STATIC_STUB_REDIRECT which is documented.
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
External tools, e.g., Intel GPU tools (IGT), support execution of
individual selftests provided by kernel modules. That could be also
applicable to kunit test modules if they provided test filtering. But
test filtering is now possible only when kunit code is built into the
kernel. Moreover, a filter can be specified only at boot time, then
reboot is required each time a different filter is needed.
Build the test filtering code also when kunit is configured as a module,
expose test filtering functions to other kunit source files, and use them
in kunit module notifier callback functions. Userspace can then reload
the kunit module with a value of the filter_glob parameter tuned to a
specific kunit test module every time it wants to limit the scope of tests
executed on that module load. Make the kunit.filter* parameters visible
in sysfs for user convenience.
v5: Refresh on tpp of attributes filtering fix
v4: Refresh on top of newly applied attributes patches and changes
introdced by new versions of other patches submitted in series with
this one.
v3: Fix CONFIG_GLOB, required by filtering functions, not selected when
building as a module (lkp@intel.com).
v2: Fix new name of a structure moved to kunit namespace not updated
across all uses (lkp@intel.com).
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
Results from kunit tests reported via dmesg may be interleaved with other
kernel messages. When parsing dmesg for modular kunit results in real
time, external tools, e.g., Intel GPU tools (IGT), may want to insert
their own test name markers into dmesg at the start of each test, before
any kernel message related to that test appears there, so existing upper
level test result parsers have no doubt which test to blame for a specific
kernel message. Unfortunately, kunit reports names of tests only at their
completion (with the exeption of a not standarized "# Subtest: <name>"
header above a test plan of each test suite or parametrized test).
External tools could be able to insert their own "start of the test"
markers with test names included if they new those names in advance.
Test names could be learned from a list if provided by a kunit test
module.
There exists a feature of listing kunit tests without actually executing
them, but it is now limited to configurations with the kunit module built
in and covers only built-in tests, already available at boot time.
Moreover, switching from list to normal mode requires reboot. If that
feature was also available when kunit is built as a module, userspace
could load the module with action=list parameter, load some kunit test
modules they are interested in and learn about the list of tests provided
by those modules, then unload them, reload the kunit module in normal mode
and execute the tests with their lists already known.
Extend kunit module notifier initialization callback with a processing
path for only listing the tests provided by a module if the kunit action
parameter is set to "list" or "list_attr". For user convenience, make the
kunit.action parameter visible in sysfs.
v2: Don't use a different format, use kunit_exec_list_tests() (Rae),
- refresh on top of new attributes patches, handle newly introduced
kunit.action=list_attr case (Rae).
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Cc: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
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According to KTAP specification[1], results should always start from a
header that provides a TAP protocol version, followed by a test plan with
a count of items to be executed. That pattern should be followed at each
nesting level. In the current implementation of the top-most, i.e., test
suite level, those rules apply only for test suites built into the kernel,
executed and reported on boot. Results submitted to dmesg from kunit test
modules loaded later are missing those top-level headers.
As a consequence, if a kunit test module provides more than one test suite
then, without the top level test plan, external tools that are parsing
dmesg for kunit test output are not able to tell how many test suites
should be expected and whether to continue parsing after complete output
from the first test suite is collected.
Submit the top-level headers also from the kunit test module notifier
initialization callback.
v3: Fix new name of a structure moved to kunit namespace not updated in
executor_test functions (lkp@intel.com).
v2: Use kunit_exec_run_tests() (Mauro, Rae), but prevent it from
emitting the headers when called on load of non-test modules.
[1] https://docs.kernel.org/dev-tools/ktap.html#
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Rae Moar <rmoar@google.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
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Add filtering of test attributes. Users can filter tests using the
module_param called "filter".
Filters are imputed in the format: <attribute_name><operation><value>
Example: kunit.filter="speed>slow"
Operations include: >, <, >=, <=, !=, and =. These operations will act the
same for attributes of the same type but may not between types.
Note multiple filters can be inputted by separating them with a comma.
Example: kunit.filter="speed=slow, module!=example"
Since both suites and test cases can have attributes, there may be
conflicts. The process of filtering follows these rules:
- Filtering always operates at a per-test level.
- If a test has an attribute set, then the test's value is filtered on.
- Otherwise, the value falls back to the suite's value.
- If neither are set, the attribute has a global "default" value, which
is used.
Filtered tests will not be run or show in output. The tests can instead be
skipped using the configurable option "kunit.filter_action=skip".
Note the default settings for running tests remains unfiltered.
Finally, add "filter" methods for the speed and module attributes to parse
and compare attribute values.
Note this filtering functionality will be added to kunit.py in the next
patch.
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Rae Moar <rmoar@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
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Add module attribute to the test attribute API. This attribute stores the
module name associated with the test using KBUILD_MODNAME.
The name of a test suite and the module name often do not match. A
reference to the module name associated with the suite could be extremely
helpful in running tests as modules without needing to check the codebase.
This attribute will be printed for each suite.
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Rae Moar <rmoar@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
|
Add speed attribute to the test attribute API. This attribute will allow
users to mark tests with a category of speed.
Currently the categories of speed proposed are: normal, slow, and very_slow
(outlined in enum kunit_speed). These are outlined in the enum kunit_speed.
The assumed default speed for tests is "normal". This indicates that the
test takes a relatively trivial amount of time (less than 1 second),
regardless of the machine it is running on. Any test slower than this could
be marked as "slow" or "very_slow".
Add the macro KUNIT_CASE_SLOW to set a test as slow, as this is likely a
common use of the attributes API.
Add an example of marking a slow test to kunit-example-test.c.
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Rae Moar <rmoar@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
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Add the basic structure of the test attribute API to KUnit, which can be
used to save and access test associated data.
Add attributes.c and attributes.h to hold associated structs and functions
for the API.
Create a struct that holds a variety of associated helper functions for
each test attribute. These helper functions will be used to get the
attribute value, convert the value to a string, and filter based on the
value. This struct is flexible by design to allow for attributes of
numerous types and contexts.
Add a method to print test attributes in the format of "# [<test_name if
not suite>.]<attribute_name>: <attribute_value>".
Example for a suite: "# speed: slow"
Example for a test case: "# test_case.speed: very_slow"
Use this method to report attributes in the KTAP output (KTAP spec:
https://docs.kernel.org/dev-tools/ktap.html) and _list_tests output when
kernel's new kunit.action=list_attr option is used. Note this is derivative
of the kunit.action=list option.
In test.h, add fields and associated helper functions to test cases and
suites to hold user-inputted test attributes.
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Rae Moar <rmoar@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
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The header uses `NULL` in both `CONFIG_KUNIT=y` and `=n` cases,
but does not include it explicitly.
When `CONFIG_KUNIT=y`, the header is already getting included via
the other headers, so it is not a problem for users.
However, when `CONFIG_KUNIT=n`, it is not, and thus a user could hit
a build error when including `kunit/test-bug.h`, like we are doing
later in this series [1].
Thus include `linux/stddef.h`, and do so outside the `#if`, since it
is used in both cases.
Reported-by: Boqun Feng <boqun.feng@gmail.com>
Closes: https://lore.kernel.org/rust-for-linux/ZJ8cNUW3oR2p+gL1@boqun-archlinux/ [1]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
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KUnit aborts the current thread when an assertion fails. Currently, this
is done conditionally as part of the kunit_do_failed_assertion()
function, but this hides the kunit_abort() call from the compiler
(particularly if it's in another module). This, in turn, can lead to
both suboptimal code generation (the compiler can't know if
kunit_do_failed_assertion() will return), and to static analysis tools
like smatch giving false positives.
Moving the kunit_abort() call into the macro should give the compiler
and tools a better chance at understanding what's going on. Doing so
requires exporting kunit_abort(), though it's recommended to continue to
use assertions in lieu of aborting directly.
In addition, kunit_abort() and kunit_do_failed_assertion() are renamed
to make it clear they they're intended for internal KUnit use, to:
__kunit_do_failed_assertion() and __kunit_abort()
Suggested-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Daniel Latypov <dlatypov@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The kunit_add_action() and related functions named the kunit_action_t
parameter 'func' in early drafts, which was later renamed to 'action'
However, the doc comments were not properly updated.
Fix these to avoid confusion and 'make htmldocs' warnings.
Fixes: b9dce8a1ed3e ("kunit: Add kunit_add_action() to defer a call until test exit")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/lkml/20230530151840.16a56460@canb.auug.org.au/
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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There is no need use opaque test_or_suite pointer and is_test flag
as we don't use anything from the suite struct. Always expect test
pointer and use NULL as indication that provided results are from
the suite so we can treat them differently.
Since results could be from nested tests, like parameterized tests,
add explicit level parameter to properly indent output messages and
thus allow to reuse this function from other places.
While around, remove small code duplication near skip directive.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: David Gow <davidgow@google.com>
Cc: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The kunit_add_action() function is much simpler and cleaner to use that
the full KUnit resource API for simple things like the
kunit_kmalloc_array() functionality.
Replacing it allows us to get rid of a number of helper functions, and
leaves us with no uses of kunit_alloc_resource(), which has some
usability problems and is going to have its behaviour modified in an
upcoming patch.
Note that we need to use kunit_defer_trigger_all() to implement
kunit_kfree().
Reviewed-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Many uses of the KUnit resource system are intended to simply defer
calling a function until the test exits (be it due to success or
failure). The existing kunit_alloc_resource() function is often used for
this, but was awkward to use (requiring passing NULL init functions, etc),
and returned a resource without incrementing its reference count, which
-- while okay for this use-case -- could cause problems in others.
Instead, introduce a simple kunit_add_action() API: a simple function
(returning nothing, accepting a single void* argument) can be scheduled
to be called when the test exits. Deferred actions are called in the
opposite order to that which they were registered.
This mimics the devres API, devm_add_action(), and also provides
kunit_remove_action(), to cancel a deferred action, and
kunit_release_action() to trigger one early.
This is implemented as a resource under the hood, so the ordering
between resource cleanup and deferred functions is maintained.
Reviewed-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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KUnit's exit functions will run even if the corresponding init function
fails. It's easy, when writing an exit function, to assume the init
function succeeded, and (for example) access uninitialised memory or
dereference NULL pointers.
Note that this case exists and should be handled in the documentation.
Suggested-by: Benjamin Berg <benjamin@sipsolutions.net>
Link: https://lore.kernel.org/linux-kselftest/a39af0400abedb2e9b31d84c37551cecc3eed0e1.camel@sipsolutions.net/
Reviewed-by: Sadiya Kazi <sadiyakazi@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The s390 specific test_unwind kunit test has 39 parameterized tests. The
results in debugfs are truncated since the full log doesn't fit into 1500
bytes.
Therefore increase KUNIT_LOG_SIZE to 2048 bytes in a similar way like it
was done recently with commit "kunit: fix bug in debugfs logs of
parameterized tests". With that the whole test result is present.
Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Copy/pasting the code from the kernel-doc here doesn't compile because
kunit_alloc_resource() takes a gfp flags argument. Pass the gfp
argument from the caller to complete the example.
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Fix bug of the extra newline characters in debugfs logs. When a
line is added to debugfs with a newline character at the end,
an extra line appears in the debugfs log.
This is due to a discrepancy between how the lines are printed and how they
are added to the logs. Remove this discrepancy by checking if a newline
character is present before adding a newline character. This should closely
match the printk behavior.
Add kunit_log_newline_test to provide test coverage for this issue. (Also,
move kunit_log_test above suite definition to remove the unnecessary
declaration prior to the suite definition)
As an example, say we add these two lines to the log:
kunit_log(..., "KTAP version 1\n");
kunit_log(..., "1..1");
The debugfs log before this fix:
KTAP version 1
1..1
The debugfs log after this fix:
KTAP version 1
1..1
Signed-off-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Fix bug in debugfs logs that causes individual parameterized results to not
appear because the log is reinitialized (cleared) when each parameter is
run.
Ensure these results appear in the debugfs logs, increase log size to
allow for the size of parameterized results. As a result, append lines to
the log directly rather than using an intermediate variable that can cause
stack size warnings due to the increased log size.
Here is the debugfs log of ext4_inode_test which uses parameterized tests
before the fix:
KTAP version 1
# Subtest: ext4_inode_test
1..1
# Totals: pass:16 fail:0 skip:0 total:16
ok 1 ext4_inode_test
As you can see, this log does not include any of the individual
parametrized results.
After (in combination with the next two fixes to remove extra empty line
and ensure KTAP valid format):
KTAP version 1
1..1
KTAP version 1
# Subtest: ext4_inode_test
1..1
KTAP version 1
# Subtest: inode_test_xtimestamp_decoding
ok 1 1901-12-13 Lower bound of 32bit < 0 timestamp, no extra bits
... (the rest of the individual parameterized tests)
ok 16 2446-05-10 Upper bound of 32bit >=0 timestamp. All extra
# inode_test_xtimestamp_decoding: pass:16 fail:0 skip:0 total:16
ok 1 inode_test_xtimestamp_decoding
# Totals: pass:16 fail:0 skip:0 total:16
ok 1 ext4_inode_test
Signed-off-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Add a simple way of redirecting calls to functions by including a
special prologue in the "real" function which checks to see if the
replacement function should be called (and, if so, calls it).
To redirect calls to a function, make the first (non-declaration) line
of the function:
KUNIT_STATIC_STUB_REDIRECT(function_name, [function arguments]);
(This will compile away to nothing if KUnit is not enabled, otherwise it
will check if a redirection is active, call the replacement function,
and return. This check is protected by a static branch, so has very
little overhead when there are no KUnit tests running.)
Calls to the real function can be redirected to a replacement using:
kunit_activate_static_stub(test, real_fn, replacement_fn);
The redirection will only affect calls made from within the kthread of
the current test, and will be automatically disabled when the test
completes. It can also be manually disabled with
kunit_deactivate_static_stub().
The 'example' KUnit test suite has a more complete example.
Co-developed-by: Daniel Latypov <dlatypov@google.com>
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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KUnit has several macros and functions intended for use from non-test
code. These hooks, currently the kunit_get_current_test() and
kunit_fail_current_test() macros, didn't work when CONFIG_KUNIT=m.
In order to support this case, the required functions and static data
need to be available unconditionally, even when KUnit itself is not
built-in. The new 'hooks.c' file is therefore always included, and has
both the static key required for kunit_get_current_test(), and a table
of function pointers in struct kunit_hooks_table. This is filled in with
the real implementations by kunit_install_hooks(), which is kept in
hooks-impl.h and called when the kunit module is loaded.
This can be extended for future features which require similar
"hook" behaviour, such as static stubs, by simply adding new entries to
the struct, and the appropriate code to set them.
Fixed white-space errors during commit:
Shuah Khan <skhan@linuxfoundation.org>
Resolved merge conflicts with:
db105c37a4d6 ("kunit: Export kunit_running()")
This patch supersedes the above.
Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Looks like kunit_test_init_section_suites(...) was messed up in a merge
conflict. This fixes it.
kunit_test_init_section_suites(...) was not updated to avoid the extra
level of indirection when .kunit_test_suites was flattened. Given no-one
was actively using it, this went unnoticed for a long period of time.
Fixes: e5857d396f35 ("kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test_suites")
Signed-off-by: Brendan Higgins <brendan.higgins@linux.dev>
Signed-off-by: David Gow <davidgow@google.com>
Tested-by: Martin Fernandez <martin.fernandez@eclypsium.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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