2021-10-27 12:44:32

by Rob Herring (Arm)

[permalink] [raw]
Subject: [PATCH] of/unittest: Disable new dtc node_name_vs_property_name and interrupt_map warnings

The unittest dtbs have various intentional errors which cause warnings.
With the latest dtc sync to v1.6.1-19-g0a3a9d3449c8, we need to disable
some new checks: node_name_vs_property_name and interrupt_map warnings.

These warnings are also generated for static_base_1.dtb, so let's just
disable the problematic warnings for all unittest dtbs instead of just
testcases.dtb.

Fixes: e76187b9792e ("scripts/dtc: Update to upstream version v1.6.1-19-g0a3a9d3449c8")
Reported-by: Stephen Rothwell <[email protected]>
Cc: Frank Rowand <[email protected]>
Signed-off-by: Rob Herring <[email protected]>
---
drivers/of/unittest-data/Makefile | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
index a5d2d9254b2c..7e1a25ad4e5c 100644
--- a/drivers/of/unittest-data/Makefile
+++ b/drivers/of/unittest-data/Makefile
@@ -37,7 +37,9 @@ DTC_FLAGS_overlay_base += -@
DTC_FLAGS_testcases += -@

# suppress warnings about intentional errors
-DTC_FLAGS_testcases += -Wno-interrupts_property
+DTC_FLAGS += -Wno-interrupts_property \
+ -Wno-node_name_vs_property_name \
+ -Wno-interrupt_map

# Apply overlays statically with fdtoverlay. This is a build time test that
# the overlays can be applied successfully by fdtoverlay. This does not
--
2.32.0


2021-10-28 00:09:55

by Frank Rowand

[permalink] [raw]
Subject: Re: [PATCH] of/unittest: Disable new dtc node_name_vs_property_name and interrupt_map warnings

On 10/26/21 5:55 PM, Rob Herring wrote:
> The unittest dtbs have various intentional errors which cause warnings.
> With the latest dtc sync to v1.6.1-19-g0a3a9d3449c8, we need to disable
> some new checks: node_name_vs_property_name and interrupt_map warnings.
>
> These warnings are also generated for static_base_1.dtb, so let's just
> disable the problematic warnings for all unittest dtbs instead of just
> testcases.dtb.
>
> Fixes: e76187b9792e ("scripts/dtc: Update to upstream version v1.6.1-19-g0a3a9d3449c8")
> Reported-by: Stephen Rothwell <[email protected]>
> Cc: Frank Rowand <[email protected]>
> Signed-off-by: Rob Herring <[email protected]>
> ---
> drivers/of/unittest-data/Makefile | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
> index a5d2d9254b2c..7e1a25ad4e5c 100644
> --- a/drivers/of/unittest-data/Makefile
> +++ b/drivers/of/unittest-data/Makefile
> @@ -37,7 +37,9 @@ DTC_FLAGS_overlay_base += -@
> DTC_FLAGS_testcases += -@
>
> # suppress warnings about intentional errors
> -DTC_FLAGS_testcases += -Wno-interrupts_property
> +DTC_FLAGS += -Wno-interrupts_property \
> + -Wno-node_name_vs_property_name \
> + -Wno-interrupt_map
>
> # Apply overlays statically with fdtoverlay. This is a build time test that
> # the overlays can be applied successfully by fdtoverlay. This does not
>

Before applying this commit, I am not seeing the warning that -Wno-interrupt_map
suppresses. I've tried with (1) CONFIG_OF_DYNAMIC and (2) with both
CONFIG_OF_DYNAMIC and CONFIG_OF_OVERLAY, and I don't see the warning.

Where are you seeing the interrupt_map warning?

I would prefer not changing from DTC_FLAGS_testcases to DTC_FLAGS because
the suppresses the warning for all unittest .dts files, not just the two
that lead to the node_name_vs_property_name warning. These two cases can
be covered with DTC_FLAGS_testcases and DTC_FLAGS_static_test_1.

-Frank

2021-10-28 04:39:07

by Stephen Rothwell

[permalink] [raw]
Subject: Re: [PATCH] of/unittest: Disable new dtc node_name_vs_property_name and interrupt_map warnings

Hi Frank,

On Wed, 27 Oct 2021 19:05:22 -0500 Frank Rowand <[email protected]> wrote:
>
> Before applying this commit, I am not seeing the warning that -Wno-interrupt_map
> suppresses. I've tried with (1) CONFIG_OF_DYNAMIC and (2) with both
> CONFIG_OF_DYNAMIC and CONFIG_OF_OVERLAY, and I don't see the warning.
>
> Where are you seeing the interrupt_map warning?

Original report here:

https://lore.kernel.org/all/[email protected]/
--
Cheers,
Stephen Rothwell


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2021-10-28 12:56:30

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH] of/unittest: Disable new dtc node_name_vs_property_name and interrupt_map warnings

On Wed, Oct 27, 2021 at 7:05 PM Frank Rowand <[email protected]> wrote:
>
> On 10/26/21 5:55 PM, Rob Herring wrote:
> > The unittest dtbs have various intentional errors which cause warnings.
> > With the latest dtc sync to v1.6.1-19-g0a3a9d3449c8, we need to disable
> > some new checks: node_name_vs_property_name and interrupt_map warnings.
> >
> > These warnings are also generated for static_base_1.dtb, so let's just
> > disable the problematic warnings for all unittest dtbs instead of just
> > testcases.dtb.
> >
> > Fixes: e76187b9792e ("scripts/dtc: Update to upstream version v1.6.1-19-g0a3a9d3449c8")
> > Reported-by: Stephen Rothwell <[email protected]>
> > Cc: Frank Rowand <[email protected]>
> > Signed-off-by: Rob Herring <[email protected]>
> > ---
> > drivers/of/unittest-data/Makefile | 4 +++-
> > 1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
> > index a5d2d9254b2c..7e1a25ad4e5c 100644
> > --- a/drivers/of/unittest-data/Makefile
> > +++ b/drivers/of/unittest-data/Makefile
> > @@ -37,7 +37,9 @@ DTC_FLAGS_overlay_base += -@
> > DTC_FLAGS_testcases += -@
> >
> > # suppress warnings about intentional errors
> > -DTC_FLAGS_testcases += -Wno-interrupts_property
> > +DTC_FLAGS += -Wno-interrupts_property \
> > + -Wno-node_name_vs_property_name \
> > + -Wno-interrupt_map
> >
> > # Apply overlays statically with fdtoverlay. This is a build time test that
> > # the overlays can be applied successfully by fdtoverlay. This does not
> >
>
> Before applying this commit, I am not seeing the warning that -Wno-interrupt_map
> suppresses. I've tried with (1) CONFIG_OF_DYNAMIC and (2) with both
> CONFIG_OF_DYNAMIC and CONFIG_OF_OVERLAY, and I don't see the warning.
>
> Where are you seeing the interrupt_map warning?

I should have noted that that is dependent on re-enabling the
interrupt_provider warning which was dependent on the dtc changes.
I've already submitted dts fixes for that and plan to enable soon:

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 56d50eb0cd80..d435db2222ab 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -305,7 +305,6 @@ quiet_cmd_gzip = GZIP $@
# DTC
# ---------------------------------------------------------------------------
DTC ?= $(objtree)/scripts/dtc/dtc
-DTC_FLAGS += -Wno-interrupt_provider

# Disable noisy checks by default
ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
@@ -319,8 +318,7 @@ endif

ifneq ($(findstring 2,$(KBUILD_EXTRA_WARN)),)
DTC_FLAGS += -Wnode_name_chars_strict \
- -Wproperty_name_chars_strict \
- -Winterrupt_provider
+ -Wproperty_name_chars_strict
endif

DTC_FLAGS += $(DTC_FLAGS_$(basetarget))

(I just noticed that dtc doesn't seem to handle overriding options
such as: '-Wno-interrupt_provider -Winterrupt_provider')

> I would prefer not changing from DTC_FLAGS_testcases to DTC_FLAGS because
> the suppresses the warning for all unittest .dts files, not just the two
> that lead to the node_name_vs_property_name warning. These two cases can
> be covered with DTC_FLAGS_testcases and DTC_FLAGS_static_test_1.

Okay.

Rob