On 6/10/25 05:54, Richard Weinberger wrote:
- Ursprüngliche Mail -
Von: "Alexander Usyskin"
Richard, I've reproduced your setup (modulo that I must load mtdram manually)
and patch provided in this thread helps to fix the issue.
Can you apply and confirm?
Yes, it fixes the issue here!
On 6/9/25 08:16, Usyskin, Alexander wrote:
Subject: Re: [PATCH v6 01/11] mtd: core: always create master device
On 6/9/25 05:23, Usyskin, Alexander wrote:
Subject: Re: [PATCH v6 01/11] mtd: core: always create master device
Several of my qemu boot tests fail to boot from mtd devices with thi
On 6/9/25 05:23, Usyskin, Alexander wrote:
Subject: Re: [PATCH v6 01/11] mtd: core: always create master device
Several of my qemu boot tests fail to boot from mtd devices with this
patch
in the mainline kernel. Reverting it fixes the problem. As far as I can
see this affects configurations
On 6/8/25 12:37, Miquel Raynal wrote:
Hi Guenter,
On 08/06/2025 at 07:00:10 GMT, "Usyskin, Alexander"
wrote:
Subject: Re: [PATCH v6 01/11] mtd: core: always create master device
Hi,
On Sun, Mar 02, 2025 at 04:09:11PM +0200, Alexander Usyskin wrote:
Create master device without partition w
Hi,
On Sun, Mar 02, 2025 at 04:09:11PM +0200, Alexander Usyskin wrote:
> Create master device without partition when
> CONFIG_MTD_PARTITIONED_MASTER flag is unset.
>
> This streamlines device tree and allows to anchor
> runtime power management on master device in all cases.
>
> Signed-off-by: A
On 4/9/25 11:25, Kuan-Wei Chiu wrote:
On Wed, Apr 09, 2025 at 12:59:14PM -0400, Yury Norov wrote:
On Wed, Apr 09, 2025 at 11:43:44PM +0800, Kuan-Wei Chiu wrote:
Redesign the parity8() helper as parity_odd(), changing its input type
from u8 to u64 to support broader use cases and its return type
On 4/1/25 10:08, Peter Zijlstra wrote:
On Thu, Mar 13, 2025 at 11:43:21AM +, Alessandro Carminati wrote:
From: Guenter Roeck
Add name of functions triggering warning backtraces to the __bug_table
object section to enable support for suppressing WARNING backtraces.
To limit image size
On 3/13/25 04:43, Alessandro Carminati wrote:
From: Guenter Roeck
Add name of functions triggering warning backtraces to the __bug_table
object section to enable support for suppressing WARNING backtraces.
To limit image size impact, the pointer to the function name is only added
to the
On 3/19/25 01:05, Christophe Leroy wrote:
Le 18/03/2025 à 16:59, Will Deacon a écrit :
On Thu, Mar 13, 2025 at 05:40:59PM +0100, Alessandro Carminati wrote:
On Thu, Mar 13, 2025 at 1:25 PM Will Deacon wrote:
On Thu, Mar 13, 2025 at 11:43:22AM +, Alessandro Carminati wrote:
diff --git
On 3/18/25 08:59, Will Deacon wrote:
On Thu, Mar 13, 2025 at 05:40:59PM +0100, Alessandro Carminati wrote:
On Thu, Mar 13, 2025 at 1:25 PM Will Deacon wrote:
On Thu, Mar 13, 2025 at 11:43:22AM +, Alessandro Carminati wrote:
diff --git a/arch/arm64/include/asm/bug.h b/arch/arm64/include/a
On Thu, Mar 13, 2025 at 06:24:25PM +0100, Maxime Ripard wrote:
> >
> > Yeah, as with my prior review, I'm a fan of this. It makes a bunch of my
> > very noisy tests much easier to deal with.
>
> And for the record, we're also affected by this in DRM and would very
> much like to get it merged in
On 2/2/25 05:27, David Laight wrote:
On Tue, 21 Jan 2025 15:15:09 -0800
Linus Torvalds wrote:
On Tue, 21 Jan 2025 at 14:59, Rodrigo Vivi wrote:
I'm pushing this soon to drm-intel-next, unless Linus want to take
this one directly to his tree
Let's just go through the proper channels and go
after a warning. While at it, fix divide by zero error seen
if source_min == source_max.
Analyzed-by: Linus Torvalds
Suggested-by: Linus Torvalds
Suggested-by: David Laight
Cc: David Laight
Cc: Jani Nikula
Cc: Andy Shevchenko
Signed-off-by: Guenter Roeck
---
v2: Simplify code to always retu
after a warning. While at it, fix divide by zero error seen
if source_min == source_max.
Analyzed-by: Linus Torvalds
Suggested-by: Linus Torvalds
Suggested-by: David Laight
Cc: David Laight
Cc: Jani Nikula
Cc: Andy Shevchenko
Signed-off-by: Guenter Roeck
---
drivers/gpu/drm/i915/display/int
On 12/17/24 15:43, Christian Heusel wrote:
On 24/12/17 06:05PM, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 6.12.6 release.
There are 172 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, p
On Wed, Oct 16, 2024 at 11:06:53PM +0300, Cristian Ciocaltea wrote:
> The RK3588 SoC family integrates the newer Synopsys DesignWare HDMI 2.1
> Quad-Pixel (QP) TX controller IP and a HDMI/eDP TX Combo PHY based on a
> Samsung IP block.
>
> Add just the basic support for now, i.e. RGB output up to
On 9/25/24 06:05, Maxime Ripard wrote:
[ ... ]
We've had similar discussions in the past around unit tests that wasted
too much cpu time with randomized combinatorial testing, and we've thrown
those out too from drm. Test hygiene matters.
We had that discussion because those tests could run fo
On 9/25/24 05:59, Maxime Ripard wrote:
...
All I'm saying it generates an extra burden for current real world CI
systems that run tests on a massive scale and even have paid
maintainers. It's not trivial to sort out expected and unexpected
warnings, and keep the filters updated every time the wa
On 9/24/24 09:57, Maxime Ripard wrote:
On Tue, Sep 24, 2024 at 06:56:26PM GMT, Jani Nikula wrote:
On Tue, 24 Sep 2024, Guenter Roeck wrote:
On Tue, Sep 24, 2024 at 12:06:28PM GMT, Simona Vetter wrote:
Yeah I think long-term we might want a kunit framework so that we can
catch dmesg warnings
On 9/24/24 08:56, Jani Nikula wrote:
On Tue, 24 Sep 2024, Guenter Roeck wrote:
On Tue, Sep 24, 2024 at 12:06:28PM GMT, Simona Vetter wrote:
Yeah I think long-term we might want a kunit framework so that we can
catch dmesg warnings we expect and test for those, without those warnings
actually
On 9/24/24 06:56, Maxime Ripard wrote:
On Tue, Sep 24, 2024 at 06:37:59AM GMT, Guenter Roeck wrote:
On 9/24/24 04:54, Maxime Ripard wrote:
+Guenter
On Tue, Sep 24, 2024 at 12:06:28PM GMT, Simona Vetter wrote:
On Tue, Sep 17, 2024 at 08:43:50PM +0300, Jani Nikula wrote:
The tests
On 9/24/24 04:54, Maxime Ripard wrote:
+Guenter
On Tue, Sep 24, 2024 at 12:06:28PM GMT, Simona Vetter wrote:
On Tue, Sep 17, 2024 at 08:43:50PM +0300, Jani Nikula wrote:
The tests consistently trigger WARNs in drm_framebuffer code. I'm not
sure what the point is with type of belts and suspende
On 8/27/24 00:20, Heiko Stübner wrote:
Hi Guenter,
Am Samstag, 24. August 2024, 18:44:29 CEST schrieb Guenter Roeck:
On Fri, Aug 23, 2024 at 10:52:36AM -0400, Detlev Casanova wrote:
It is compatible with the other rockchip SoCs.
Signed-off-by: Detlev Casanova
Acked-by: Guenter Roeck
On Fri, Aug 23, 2024 at 10:52:36AM -0400, Detlev Casanova wrote:
> It is compatible with the other rockchip SoCs.
>
> Signed-off-by: Detlev Casanova
Acked-by: Guenter Roeck
> ---
> Documentation/devicetree/bindings/watchdog/snps,dw-wdt.yaml | 1 +
> 1 file changed, 1 inse
hristophe JAILLET
Cc: Joe Perches
Reviewed-by: Kees Cook
Signed-off-by: Guenter Roeck
---
v3: Split assignments from if conditions.
v2: Use check_add_overflow() to calculate the allocation size and to check
for overflows.
drivers/gpu/drm/nouveau/nvif/object.c | 24 ++
On 5/18/24 18:19, Joe Perches wrote:
On Sat, 2024-05-18 at 11:23 -0700, Guenter Roeck wrote:
On 5/18/24 10:32, Kees Cook wrote:
[]
I think the INT_MAX test is actually better in this case because
nvif_object_ioctl()'s size argument is u32:
ret = nvif_object_ioctl(object, args, sizeof(
d the overflow.
Fixes: a61ddb4393ad ("drm: enable (most) W=1 warnings by default across the
subsystem")
Cc: Javier Martinez Canillas
Cc: Jani Nikula
Cc: Thomas Zimmermann
Cc: Danilo Krummrich
Cc: Maxime Ripard
Cc: Kees Cook
Cc: Christophe JAILLET
Signed-off-by: Guenter Roeck
---
v2
On 5/18/24 10:32, Kees Cook wrote:
On Sat, May 18, 2024 at 06:54:36PM +0200, Christophe JAILLET wrote:
(adding linux-harden...@vger.kernel.org)
Le 18/05/2024 à 16:37, Guenter Roeck a écrit :
Trying to build parisc:allmodconfig with gcc 12.x or later results
in the following build error
("drm: enable (most) W=1 warnings by default across the
subsystem")
Cc: Javier Martinez Canillas
Cc: Jani Nikula
Cc: Thomas Zimmermann
Cc: Danilo Krummrich
Cc: Maxime Ripard
Signed-off-by: Guenter Roeck
---
checkpatch complains about the line length in the description and the
(pre-e
On 5/17/24 11:00, Guenter Roeck wrote:
On 5/17/24 10:48, Steven Rostedt wrote:
On Fri, 17 May 2024 10:36:37 -0700
Guenter Roeck wrote:
Building csky:allmodconfig (and others) ... failed
--
Error log:
In file included from include/trace/trace_events.h:419,
from
Hi,
On Tue, Mar 05, 2024 at 11:07:35AM +0200, Jani Nikula wrote:
> At least the i915 and amd drivers enable a bunch more compiler warnings
> than the kernel defaults.
>
> Extend most of the W=1 warnings to the entire drm subsystem by
> default. Use the copy-pasted warnings from scripts/Makefile.e
On 5/17/24 10:48, Steven Rostedt wrote:
On Fri, 17 May 2024 10:36:37 -0700
Guenter Roeck wrote:
Building csky:allmodconfig (and others) ... failed
--
Error log:
In file included from include/trace/trace_events.h:419,
from include/trace/define_trace.h:102
On Thu, May 16, 2024 at 01:34:54PM -0400, Steven Rostedt wrote:
> From: "Steven Rostedt (Google)"
>
> [
>This is a treewide change. I will likely re-create this patch again in
>the second week of the merge window of v6.10 and submit it then. Hoping
>to keep the conflicts that it will
On Tue, Apr 09, 2024 at 04:29:42PM +0800, David Gow wrote:
> > +ifeq ($(CCONFIG_KUNIT_SUPPRESS_BACKTRACE),y)
>
> s/CCONFIG_/CONFIG_/ ?
>
>
Odd, I know I tested this (and it still works ;-).
The additional "C" must have slipped in at some point.
Thanks for noticing!
Guenter
On Wed, Apr 03, 2024 at 06:34:12PM -0700, Jakub Kicinski wrote:
> On Wed, 3 Apr 2024 06:19:27 -0700 Guenter Roeck wrote:
> > dev_addr_lists_test generates lock warning noise at the end of tests
> > if lock debugging is enabled. There are two sets of warnings.
> >
> >
entry for _EMIT_BUG_ENTRY
to make kerneldoc happy.
Reported-by: Simon Horman
Cc: Simon Horman
Cc: Yoshinori Sato
Cc: Rich Felker
Cc: John Paul Adrian Glaubitz
Signed-off-by: Guenter Roeck
---
v3: Added patch. Possibly squash into previous patch.
arch/sh/include/asm/bug.h | 16 +-
Acked-by: Dan Carpenter
Cc: Michael Ellerman
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
v3:
- Rebased to v6.9-rc2
arch/powerpc/include/asm/bug.h | 37
__BUG_ENTRY_ADDR and
__BUG_ENTRY_FILE macros into a single macro named __BUG_REL() which takes
the address, file, or function reference as parameter.
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Cc: Paul Walmsley
Cc: Palmer Dabbelt
Cc: Albert Ou
Signed-off-by: Guenter Roeck
Acked-by: Dan Carpenter
Cc: Yoshinori Sato
Cc: Rich Felker
Cc: John Paul Adrian Glaubitz
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
v3:
- Rebased to v6.9-rc2
arch/sh
Acked-by: Dan Carpenter
Cc: Heiko Carstens
Cc: Vasily Gorbik
Cc: Alexander Gordeev
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1 (simplified assembler changes after upstream commit
3938490e78f4 ("s390/bug: remove entry size from __bug_table section")
- Added Tested-by:
Acked-by: Dan Carpenter
Cc: Huacai Chen
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1; resolved context conflict
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
v3:
- Rebased to v6.9-rc2; resolved context conflict
arch
constants where possible.
Refine .blockz instructions to calculate the necessary padding instead
of using fixed values.
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Acked-by: Helge Deller
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by
Acked-by: Dan Carpenter
Reviewed-by: Kees Cook
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
v3:
- Rebased to v6.9-rc2
lib/kunit/Makefile | 7 +-
lib
Acked-by: Dan Carpenter
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
v3:
- Rebased to v6.9-rc2
arch/arm64/include/asm/asm-bug.h | 29
Acked-by: Dan Carpenter
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: Borislav Petkov
Cc: Dave Hansen
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
v3:
- Rebased to v6.9-rc2
.
Tested-by: Linux Kernel Functional Testing
Cc: David Gow
Cc: Jakub Kicinski
Cc: Eric Dumazet
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
v3:
- Rebased to v6.9-rc2
net/core/dev_addr_lists_test.c | 6
log and distraction from real problems.
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Acked-by: Maíra Canal
Cc: Maarten Lankhorst
Cc: David Airlie
Cc: Daniel Vetter
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by
Document API functions for suppressing warning backtraces.
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Reviewed-by: Kees Cook
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
v3:
- Rebased to v6.9-rc2
Cc: Daniel Diaz
Cc: Naresh Kamboju
Cc: Kees Cook
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Reviewed-by: Kees Cook
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Added CONFIG_KUNIT_SUPPRESS_BACKTRACE con
bug.h
to avoid kerneldoc warning
- Added architecture maintainers to Cc: for architecture specific patches
- No functional changes
--------
Guenter Roeck (15):
bug/kunit: Core support for suppressing warning backtraces
kunit:
.
Acked-by: Dan Carpenter
Reviewed-by: Kees Cook
Tested-by: Linux Kernel Functional Testing
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
v3:
- Rebased to v6.9-rc2
include
On Wed, Mar 27, 2024 at 07:39:20PM +, Simon Horman wrote:
[ ... ]
> > >
> > > Hi Guenter,
> > >
> > > a minor nit from my side: this change results in a Kernel doc warning.
> > >
> > > .../bug.h:29: warning: expecting prototype for _EMIT_BUG_ENTRY().
> > > Prototype was for HAVE_BUG_F
On 3/27/24 07:44, Simon Horman wrote:
On Mon, Mar 25, 2024 at 10:52:46AM -0700, Guenter Roeck wrote:
Add name of functions triggering warning backtraces to the __bug_table
object section to enable support for suppressing WARNING backtraces.
To limit image size impact, the pointer to the
On 3/25/24 18:09, Maíra Canal wrote:
On 3/25/24 16:24, Guenter Roeck wrote:
Hi,
On Mon, Mar 25, 2024 at 04:05:06PM -0300, Maíra Canal wrote:
Hi Guenter,
On 3/25/24 14:52, Guenter Roeck wrote:
The drm_test_rect_calc_hscale and drm_test_rect_calc_vscale unit tests
intentionally trigger
Hi,
On Mon, Mar 25, 2024 at 04:05:06PM -0300, Maíra Canal wrote:
> Hi Guenter,
>
> On 3/25/24 14:52, Guenter Roeck wrote:
> > The drm_test_rect_calc_hscale and drm_test_rect_calc_vscale unit tests
> > intentionally trigger warning backtraces by providing bad paramet
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1; resolved context conflict
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
arch/loongarch/include/asm/bug.h | 38 +++-
1 file
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
arch/arm64/include/asm/asm-bug.h | 29 +++--
arch/arm64/include/asm/bug.h | 8
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
arch/powerpc/include/asm/bug.h | 37 +-
1 file changed, 28 insertions(+), 9
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1 (simplified assembler changes after upstream commit
3938490e78f4 ("s390/bug: remove entry size from __bug_table section")
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS
__BUG_ENTRY_ADDR and
__BUG_ENTRY_FILE macros into a single macro named __BUG_REL() which takes
the address, file, or function reference as parameter.
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by
constants where possible.
Refine .blockz instructions to calculate the necessary padding instead
of using fixed values.
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Acked-by: Helge Deller
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
arch/sh/include/asm/bug.h | 26 ++
1 file changed, 22 insertions(+), 4 deletions
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
arch/x86/include/asm/bug.h | 21 -
1 file changed, 16 insertions(+), 5 deletions(-)
diff
log.
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
drivers/gpu/drm/tests/drm_rect_test.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm
: Linux Kernel Functional Testing
Cc: David Gow
Cc: Jakub Kicinski
Acked-by: Dan Carpenter
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
net/core/dev_addr_lists_test.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/net/core
Cc: Daniel Diaz
Cc: Naresh Kamboju
Cc: Kees Cook
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Reviewed-by: Kees Cook
Signed-off-by: Guenter Roeck
---
v2:
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Added CONFIG_KUNIT_SUPPRESS_BACKTRACE con
Document API functions for suppressing warning backtraces.
Tested-by: Linux Kernel Functional Testing
Acked-by: Dan Carpenter
Reviewed-by: Kees Cook
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
Documentation/dev-tools/kunit
.
Acked-by: Dan Carpenter
Reviewed-by: Kees Cook
Tested-by: Linux Kernel Functional Testing
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
include/kunit/bug.h | 7 ++-
lib
Acked-by: Dan Carpenter
Reviewed-by: Kees Cook
Signed-off-by: Guenter Roeck
---
- Rebased to v6.9-rc1
- Added Tested-by:, Acked-by:, and Reviewed-by: tags
- Introduced KUNIT_SUPPRESS_BACKTRACE configuration option
lib/kunit/Makefile | 7 +-
lib/kunit/backtrace-suppression
Some unit tests intentionally trigger warning backtraces by passing bad
parameters to kernel API functions. Such unit tests typically check the
return value from such calls, not the existence of the warning backtrace.
Such intentionally generated warning backtraces are neither desirable
nor useful
On 3/23/24 09:43, Marek Behún wrote:
A few drivers register a devm action to remove a debugfs directory,
implementing a one-liner function that calls debufs_remove_recursive().
Help drivers avoid this repeated implementations by adding managed
version of debugfs directory create function.
Use th
On 3/18/24 06:28, Lucas De Marchi wrote:
On Sun, Mar 17, 2024 at 09:14:14AM -0700, Guenter Roeck wrote:
Hi,
On Thu, Jan 18, 2024 at 04:16:12PM -0800, Lucas De Marchi wrote:
Now that all the issues with 32bits are fixed, enable it again.
Reviewed-by: Matt Roper
Signed-off-by: Lucas De Marchi
On 3/18/24 06:28, Lucas De Marchi wrote:
On Sun, Mar 17, 2024 at 09:14:14AM -0700, Guenter Roeck wrote:
Hi,
On Thu, Jan 18, 2024 at 04:16:12PM -0800, Lucas De Marchi wrote:
Now that all the issues with 32bits are fixed, enable it again.
Reviewed-by: Matt Roper
Signed-off-by: Lucas De Marchi
"
do not scale. Remove COMPILE_TEST support for the suni4 drm driver instead
to ensure that test builds are only performed on supported architectures.
Fixes: 358e76fd613a ("drm/sun4i: hdmi: Consolidate atomic_check and mode_valid")
Signed-off-by: Guenter Roeck
---
drivers/gpu/drm
Hi,
recently there was a suggestion that drm build tests on architectures
such as xtensa should not happen or not be reported. The current mainline
kernel experiences a number of drm related build failures.
Building csky:allmodconfig ... failed
--
Error log:
ERROR: modpost: "__udivdi
On 3/14/24 07:37, Guenter Roeck wrote:
On 3/14/24 06:36, Geert Uytterhoeven wrote:
Hi Günter,
On Tue, Mar 12, 2024 at 6:03 PM Guenter Roeck wrote:
Some unit tests intentionally trigger warning backtraces by passing bad
parameters to kernel API functions. Such unit tests typically check the
here HPD is signaled out of band like with Type C.
>
> Fixes: c943b4948b58 ("drm/msm/dp: add displayPort driver support")
> Signed-off-by: Douglas Anderson
Reviewed-by: Guenter Roeck
> ---
>
> Changes in v2:
> - Don't look at the HPD line directly; have dp_displ
On 3/14/24 08:02, Maxime Ripard wrote:
On Thu, Mar 14, 2024 at 07:37:13AM -0700, Guenter Roeck wrote:
On 3/14/24 06:36, Geert Uytterhoeven wrote:
Hi Günter,
On Tue, Mar 12, 2024 at 6:03 PM Guenter Roeck wrote:
Some unit tests intentionally trigger warning backtraces by passing bad
On 3/14/24 06:36, Geert Uytterhoeven wrote:
Hi Günter,
On Tue, Mar 12, 2024 at 6:03 PM Guenter Roeck wrote:
Some unit tests intentionally trigger warning backtraces by passing bad
parameters to kernel API functions. Such unit tests typically check the
return value from such calls, not the
On 3/14/24 00:57, Geert Uytterhoeven wrote:
Hi Günter,
On Tue, Mar 12, 2024 at 6:06 PM Guenter Roeck wrote:
Add name of functions triggering warning backtraces to the __bug_table
object section to enable support for suppressing WARNING backtraces.
To limit image size impact, the pointer to
On Tue, Mar 12, 2024 at 5:14 PM Douglas Anderson wrote:
>
> As documented in the description of the transfer() function of
> "struct drm_dp_aux", the transfer() function can be called at any time
> regardless of the state of the DP port. Specifically if the kernel has
> the DP AUX character device
enabled. Otherwise, the __func__ assembly parameter is replaced with a
(dummy) NULL parameter to avoid an image size increase due to unused
__func__ entries (this is necessary because __func__ is not a define but a
virtual variable).
Signed-off-by: Guenter Roeck
---
arch/sh/include/asm/bug.h | 26
enabled. Otherwise, the __func__ assembly parameter is replaced with a
(dummy) NULL parameter to avoid an image size increase due to unused
__func__ entries (this is necessary because __func__ is not a define but a
virtual variable).
Signed-off-by: Guenter Roeck
---
arch/powerpc/include/asm/bug.h
__BUG_ENTRY_FILE macros into a single macro named __BUG_REL() which takes
the address, file, or function reference as parameter.
Signed-off-by: Guenter Roeck
---
arch/riscv/include/asm/bug.h | 38
1 file changed, 26 insertions(+), 12 deletions(-)
diff --git a
enabled. Otherwise, the __func__ assembly parameter is replaced with a
(dummy) NULL parameter to avoid an image size increase due to unused
__func__ entries (this is necessary because __func__ is not a define but a
virtual variable).
Signed-off-by: Guenter Roeck
---
arch/s390/include/asm/bug.h | 19
Document API functions for suppressing warning backtraces.
Signed-off-by: Guenter Roeck
---
Documentation/dev-tools/kunit/usage.rst | 30 -
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/Documentation/dev-tools/kunit/usage.rst
b/Documentation/dev-tools
possible.
Refine .blockz instructions to calculate the necessary padding instead
of using fixed values.
Signed-off-by: Guenter Roeck
---
arch/parisc/include/asm/bug.h | 29 +
1 file changed, 21 insertions(+), 8 deletions(-)
diff --git a/arch/parisc/include/asm/bug.h b/arch
enabled. Otherwise, the __func__ assembly parameter is replaced with a
(dummy) NULL parameter to avoid an image size increase due to unused
__func__ entries (this is necessary because __func__ is not a define but a
virtual variable).
Signed-off-by: Guenter Roeck
---
arch/loongarch/include/asm/bug.h
enabled. Otherwise, the __func__ assembly parameter is replaced with a
(dummy) NULL parameter to avoid an image size increase due to unused
__func__ entries (this is necessary because __func__ is not a define but a
virtual variable).
Signed-off-by: Guenter Roeck
---
arch/x86/include/asm/bug.h | 21
enabled. Otherwise, the __func__ assembly parameter is replaced with a
(dummy) NULL parameter to avoid an image size increase due to unused
__func__ entries (this is necessary because __func__ is not a define but a
virtual variable).
Signed-off-by: Guenter Roeck
---
arch/arm64/include/asm/asm-bug.h
Cc: Jakub Kicinski
Signed-off-by: Guenter Roeck
---
net/core/dev_addr_lists_test.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/net/core/dev_addr_lists_test.c b/net/core/dev_addr_lists_test.c
index 4dbd0dc6aea2..b427dd1a3c93 100644
--- a/net/core/dev_addr_lists_test.c
+++ b/net/core
Add unit tests to verify that warning backtrace suppression works.
If backtrace suppression does _not_ work, the unit tests will likely
trigger unsuppressed backtraces, which should actually help to get
the affected architectures / platforms fixed.
Signed-off-by: Guenter Roeck
---
lib/kunit
log.
Signed-off-by: Guenter Roeck
---
drivers/gpu/drm/tests/drm_rect_test.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/tests/drm_rect_test.c
b/drivers/gpu/drm/tests/drm_rect_test.c
index 76332cd2ead8..75614cb4deb5 100644
--- a/drivers/gpu/drm/tests/drm_rect_test.c
.
Signed-off-by: Guenter Roeck
---
include/kunit/bug.h | 7 ++-
lib/kunit/bug.c | 4 +++-
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/include/kunit/bug.h b/include/kunit/bug.h
index 1e34da961599..2097a854ac8c 100644
--- a/include/kunit/bug.h
+++ b/include/kunit/bug.h
@@ -20,6
Cc: Naresh Kamboju
Cc: Kees Cook
Signed-off-by: Guenter Roeck
---
include/asm-generic/bug.h | 16 +---
include/kunit/bug.h | 51 +++
include/kunit/test.h | 1 +
include/linux/bug.h | 13 ++
lib/bug.c
Some unit tests intentionally trigger warning backtraces by passing bad
parameters to kernel API functions. Such unit tests typically check the
return value from such calls, not the existence of the warning backtrace.
Such intentionally generated warning backtraces are neither desirable
nor useful
On 3/11/24 09:58, Rodrigo Vivi wrote:
On Mon, Mar 11, 2024 at 09:06:46AM +0100, Janusz Krzysztofik wrote:
In i915 hwmon sysfs getter path we now take a hwmon_lock, then acquire an
rpm wakeref. That results in lock inversion:
<4> [197.079335]
On Tue, Mar 05, 2024 at 10:40:28AM -0800, Guenter Roeck wrote:
> Some unit tests intentionally trigger warning backtraces by passing bad
> parameters to kernel API functions. Such unit tests typically check the
> return value from such calls, not the existence of the warning backtrace.
Hi Daniel,
On 3/6/24 10:24, Daniel Díaz wrote:
[ ... ]
Thank you SO very much for this work! This is very much appreciated!
Thanks a lot for the feedback.
We run into these warnings at LKFT all the time, and making sure that
the noise doesn't drown the relevant signal is very important.
On 3/5/24 11:54, Kees Cook wrote:
On Tue, Mar 05, 2024 at 10:40:29AM -0800, Guenter Roeck wrote:
[...]
warning = (bug->flags & BUGFLAG_WARNING) != 0;
once = (bug->flags & BUGFLAG_ONCE) != 0;
done = (bug->flags & BUGFLAG_DONE) !
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