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Tue, 19 Oct 2021 15:36:58 -0700 (PDT) Date: Tue, 19 Oct 2021 15:36:45 -0700 In-Reply-To: <20211019223646.1146945-1-ndesaulniers@google.com> Message-Id: <20211019223646.1146945-4-ndesaulniers@google.com> Mime-Version: 1.0 References: <20211019223646.1146945-1-ndesaulniers@google.com> X-Developer-Key: i=ndesaulniers@google.com; a=ed25519; pk=lvO/pmg+aaCb6dPhyGC1GyOCvPueDrrc8Zeso5CaGKE= X-Developer-Signature: v=1; a=ed25519-sha256; t=1634683006; l=1704; s=20211004; h=from:subject; bh=74hCoLStsXal7EECTyeA4v4ANHbGr/aLrzSq59yc++w=; b=NMtRKTwXJOcg7HCEHcr4qlyA51nWYLdppfUbMlsepaH/P2iZVOh62wivzOpTO7DmNm1ywvKsULyi 90vwOhN3CX+banOlQxJJQe/9xRZvNfnyvhmezJeuqNJ3aHFhGagP X-Mailer: git-send-email 2.33.0.1079.g6e70778dc9-goog Subject: [PATCH v2 3/4] arm64: vdso32: suppress error message for 'make mrproper' From: Nick Desaulniers To: Catalin Marinas , Will Deacon Cc: llvm@lists.linux.dev, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Vincenzo Frascino , Nathan Chancellor , Nick Desaulniers , Lucas Henneman , Masahiro Yamada X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211019_153700_567862_2B2A5544 X-CRM114-Status: GOOD ( 13.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When running the following command without arm-linux-gnueabi-gcc in one's $PATH, the following warning is observed: $ ARCH=arm64 CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make -j72 LLVM=1 mrproper make[1]: arm-linux-gnueabi-gcc: No such file or directory This is because KCONFIG is not run for mrproper, so CONFIG_CC_IS_CLANG is not set, and we end up eagerly evaluating various variables that try to invoke CC_COMPAT. This is a similar problem to what was observed in commit dc960bfeedb0 ("h8300: suppress error messages for 'make clean'") Reported-by: Lucas Henneman Suggested-by: Masahiro Yamada Signed-off-by: Nick Desaulniers --- Changes v1 -> v2: * Change to suppressing via redirecting stderr to /dev/null, as per Masahiro. * Add Masahiro's SB tag. * Cite dc960bfeedb0. arch/arm64/kernel/vdso32/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile index 1407516e041e..e478cebb9891 100644 --- a/arch/arm64/kernel/vdso32/Makefile +++ b/arch/arm64/kernel/vdso32/Makefile @@ -38,7 +38,8 @@ cc32-disable-warning = $(call try-run,\ # As a result we set our own flags here. # KBUILD_CPPFLAGS and NOSTDINC_FLAGS from top-level Makefile -VDSO_CPPFLAGS := -DBUILD_VDSO -D__KERNEL__ -nostdinc -isystem $(shell $(CC_COMPAT) -print-file-name=include) +VDSO_CPPFLAGS := -DBUILD_VDSO -D__KERNEL__ -nostdinc +VDSO_CPPFLAGS += -isystem $(shell $(CC_COMPAT) -print-file-name=include 2>/dev/null) VDSO_CPPFLAGS += $(LINUXINCLUDE) # Common C and assembly flags -- 2.33.0.1079.g6e70778dc9-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel