linux-kernel - [PATCH v2 2/4] kbuild: Allow arch/platform override of dtc warning level

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20231122-dtc-warnings-v2-2-bd4087325392@kernel.org>
Date:   Wed, 22 Nov 2023 15:12:33 -0700
From:   Rob Herring <robh@...nel.org>
To:     Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Conor Dooley <conor@...nel.org>
Cc:     linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: [PATCH v2 2/4] kbuild: Allow arch/platform override of dtc warning
 level

In order to allow enabling extra dtc warnings on a per arch or platform
basis, define a new variable, KBUILD_EXTRA_WARN_DTC, which contains the
warning level and can be set by an arch or platform independently of
KBUILD_EXTRA_WARN. The default value is KBUILD_EXTRA_WARN as before.

The platform setting and command line setting are merged. For example,
with a platform that defaults to W=1, one can run 'make W=2 dtbs' which
will enable both level 1 and 2 warnings.

Signed-off-by: Rob Herring <robh@...nel.org>
---
 scripts/Makefile.lib | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index a67f781ae8ee..53a74e53e0ca 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -341,8 +341,10 @@ quiet_cmd_gzip = GZIP    $@
 # ---------------------------------------------------------------------------
 DTC ?= $(objtree)/scripts/dtc/dtc
 
+KBUILD_EXTRA_WARN_DTC += $(KBUILD_EXTRA_WARN)
+
 # Disable noisy checks by default
-ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
+ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN_DTC)),)
 DTC_FLAGS += -Wno-unit_address_vs_reg \
 	-Wno-avoid_unnecessary_addr_size \
 	-Wno-alias_paths \
@@ -353,7 +355,7 @@ DTC_FLAGS += \
         -Wunique_unit_address_if_enabled
 endif
 
-ifneq ($(findstring 2,$(KBUILD_EXTRA_WARN)),)
+ifneq ($(findstring 2,$(KBUILD_EXTRA_WARN_DTC)),)
 DTC_FLAGS += -Wnode_name_chars_strict \
 	-Wproperty_name_chars_strict
 else

-- 
2.42.0