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 CAAD022540E; Thu, 12 Dec 2024 16:09:57 +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=1734019797; cv=none; b=oygFOhEgcuUsmrFJKKYllZkzv8Bz8wYr66z/K6EYZVH8/pOON4N3rGSRRHSP0tQR3vtFgkfkGZhSBlohgoKA4+NxKyDdUBnTB1niLSMzJn6kCqhnco4HrpGkgTXbtBrvKgAEu5NVrUgzPvIZSJqQYp0RFVdbGbCCQrYEbChEEZg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734019797; c=relaxed/simple; bh=Y79HnsDe02EpDdqUIQVwZGXadnh/pzu9tDgoEhGpsq4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nuk+OK1BZTLl+5f6eT2hroP9VEgPC4DpxxvL4tcoYWNDK5VhrqF0YRcnguh7FPgOTjYU/ah3ELfWBbA5RjGoVlUDwnYy7XRE8JGoWrFbFDd75EtkXNRpnmumIvxsRdLaz0lrd0tvFc4fmG+AeEovJHDCJ8yHjBXtOE4KwEy/wnk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=oZ2MysOI; 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="oZ2MysOI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C7397C4CED0; Thu, 12 Dec 2024 16:09:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734019797; bh=Y79HnsDe02EpDdqUIQVwZGXadnh/pzu9tDgoEhGpsq4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oZ2MysOI5uA955ucV9XWnJ5VyWPVoF/s/USimlOM4KzWD27HrBGlu0TeIynHi8maQ e9CsBIgwfoMH/LRArIVe0P/BP0D6MsfFHywMiGZVlC0Qk7dqwn52Zou5diFs7P9GX2 4ZzvUzs2ISEyLG0WKB2mrDHNF2iynA7tCWbdAoGQ= 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 6.1 301/772] LoongArch: Fix build failure with GCC 15 (-std=gnu23) Date: Thu, 12 Dec 2024 15:54:06 +0100 Message-ID: <20241212144402.342400034@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241212144349.797589255@linuxfoundation.org> References: <20241212144349.797589255@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 6.1-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 67cfb4934bcf8..ed196e42972c7 100644 --- a/arch/loongarch/vdso/Makefile +++ b/arch/loongarch/vdso/Makefile @@ -23,7 +23,7 @@ endif 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