From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2023353A7; Fri, 6 Dec 2024 15:09:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733497782; cv=none; b=U4DKjhy9VuWyFp8Hggex1+foMnEMQkcmNVRWgYSX4+FSoDnHWlhs6DGUrX94TBGc0TuuFA5mhRq8GSoTQtsqtXmu9t/q+dS4H0DrrY8cggcU9rzYjZdyMOsBmGrVehPvoB+bb7lRySHp2xMtF6zEtxc6GGp1Jw5KTO6IGvCXQv4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733497782; c=relaxed/simple; bh=h+6TfDb5l4ycomIsAGsvnUrxZEbZH6Bej5wfbdX6s1w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lpLI4ntvH+klFzfj8ZMgPcQg/GTHYBHVUhlQpGBTxfMMgE1tntybSzVGMKjce9983lqVTQwdO2usZnHtlrXeFqYlcNgOnkntv7bfISt5PcXoYCL/wohDGe39mz7E46XPbz0fJmP49XQFbwBwuP44k219iNWdKlc3g8vt04EhD1o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=y5ALRQ06; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="y5ALRQ06" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8170DC4CED1; Fri, 6 Dec 2024 15:09:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1733497782; bh=h+6TfDb5l4ycomIsAGsvnUrxZEbZH6Bej5wfbdX6s1w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=y5ALRQ06ARbWfE3nDETpBeQJUUxCZdZoLCmVGQ1cS2BkPFqUVHGij8SMvypwzv8Ox hKPqFAumuZC977ExNkkepVsL6aInjhwEmalY66Ph3NOgVzx+LN5Sgq2lkhK5FDT379 3OM4erhQso1wimtAOEtbdDqpyRZYlt0lmoGLdMew= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tiezhu Yang , Huacai Chen , Sasha Levin Subject: [PATCH 6.6 392/676] LoongArch: Fix build failure with GCC 15 (-std=gnu23) Date: Fri, 6 Dec 2024 15:33:31 +0100 Message-ID: <20241206143708.662678807@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241206143653.344873888@linuxfoundation.org> References: <20241206143653.344873888@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tiezhu Yang [ Upstream commit 947d5d036c788156f09e83e7f16322ffe8124384 ] Whenever I try to build the kernel with upcoming GCC 15 which defaults to -std=gnu23 I get a build failure: CC arch/loongarch/vdso/vgetcpu.o In file included from ./include/uapi/linux/posix_types.h:5, from ./include/uapi/linux/types.h:14, from ./include/linux/types.h:6, from ./include/linux/kasan-checks.h:5, from ./include/asm-generic/rwonce.h:26, from ./arch/loongarch/include/generated/asm/rwonce.h:1, from ./include/linux/compiler.h:317, from ./include/asm-generic/bug.h:5, from ./arch/loongarch/include/asm/bug.h:60, from ./include/linux/bug.h:5, from ./include/linux/mmdebug.h:5, from ./include/linux/mm.h:6, from ./arch/loongarch/include/asm/vdso.h:10, from arch/loongarch/vdso/vgetcpu.c:6: ./include/linux/stddef.h:11:9: error: expected identifier before 'false' 11 | false = 0, | ^~~~~ ./include/linux/types.h:35:33: error: two or more data types in declaration specifiers 35 | typedef _Bool bool; | ^~~~ ./include/linux/types.h:35:1: warning: useless type name in empty declaration 35 | typedef _Bool bool; | ^~~~~~~ The kernel builds explicitly with -std=gnu11 in top Makefile, but arch/loongarch/vdso does not use KBUILD_CFLAGS from the rest of the kernel, just add -std=gnu11 flag to arch/loongarch/vdso/Makefile. By the way, commit e8c07082a810 ("Kbuild: move to -std=gnu11") did a similar change for arch/arm64/kernel/vdso32/Makefile. Fixes: c6b99bed6b8f ("LoongArch: Add VDSO and VSYSCALL support") Signed-off-by: Tiezhu Yang Signed-off-by: Huacai Chen Signed-off-by: Sasha Levin --- arch/loongarch/vdso/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/loongarch/vdso/Makefile b/arch/loongarch/vdso/Makefile index f597cd08a96be..1a0f6ca0247b4 100644 --- a/arch/loongarch/vdso/Makefile +++ b/arch/loongarch/vdso/Makefile @@ -22,7 +22,7 @@ ccflags-vdso := \ cflags-vdso := $(ccflags-vdso) \ -isystem $(shell $(CC) -print-file-name=include) \ $(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \ - -O2 -g -fno-strict-aliasing -fno-common -fno-builtin \ + -std=gnu11 -O2 -g -fno-strict-aliasing -fno-common -fno-builtin \ -fno-stack-protector -fno-jump-tables -DDISABLE_BRANCH_PROFILING \ $(call cc-option, -fno-asynchronous-unwind-tables) \ $(call cc-option, -fno-stack-protector) -- 2.43.0