From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 DCB0B42DA3F; Thu, 3 Sep 2026 07:41:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788421295; cv=none; b=FcaBInU8pmjbOfFyB8syLzWeFiLrrFeZPGYmoDobihTBwWnfyOJNSTHpYcjH0NWwGEbIc0ZKqlg/0RRVsX0qIOcsFOzqiA/u11FrZhskRQkyuINxNDtxKJ2t+DeMZZNQ4BuIuh7438aJEgQ5SSlIppPcBSP7z1kfJxMpsWDyVkc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788421295; c=relaxed/simple; bh=b7W/p77P/YlmxuUHtTjOCqsXrUn80Pb/0CSphAb3eXc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=sGbpgb/fHjjZKsNFOqZzpXaLadVDYA9SRfzdSqz3nqjNpEkx+ILsFn+e0AkVSkz03r5Jigj9ld2CQVlYfytpdj/awR76pBNJlwjkXTp5xkgmdDwTyDlHQofHIWZP5NCkwKn38QGg3QgqBsLcQydA2fVTdYY0OXkcHLQ8TULNBjw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=epr8s8vL; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=/TtDngCq; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="epr8s8vL"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="/TtDngCq" From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1788421290; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5iW4jdWMi73lQm0xNAN3vvMpxq+9yLkV/tkClyyUkd0=; b=epr8s8vLWpnga42EE26n/anTxvrFGHH4F82vRsZ686O+FbHTEyfL38Jbyrw33Fao8FUOgP YvfpgVnoZnX8uTI0qolELM6IsguWl2qCqGWFBHlWnTJgmPYquNQMwRJfi9XWi6Y5mRGle4 KW3ueTspexywSZl3IKwRJHiOmkWiXh3Az2QaFtgBu2ylyRNKRnXLJSb4gZuN3or+uhXc+C FD6GRaP/A1NC0OFndLerATSc2J8oWgw0KbM/ig2+8dvbYbF0vV+qJArn7vMmZZ7Ov6GROG AQU6MqZCgZtTEo2NvDq+V4aCkcTPEMlQGt5c46v4ztQOs+3dQoiiMOY1XvcXvQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1788421290; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5iW4jdWMi73lQm0xNAN3vvMpxq+9yLkV/tkClyyUkd0=; b=/TtDngCq8exQVQLXPVtjCK54BDhStRy2GTyEEXPtifFWiN3MyDpaRwkn0f1Dw6U+PBq7Nh AeLBrYQ9oaU/umAw== Date: Thu, 03 Sep 2026 09:41:20 +0200 Subject: [PATCH v2 05/15] x86: Remove AT_VECTOR_SIZE_ARCH from UAPI Precedence: bulk X-Mailing-List: linux-alpha@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260903-at-vector-size-arch-v2-5-5bc32a71e3d8@linutronix.de> References: <20260903-at-vector-size-arch-v2-0-5bc32a71e3d8@linutronix.de> In-Reply-To: <20260903-at-vector-size-arch-v2-0-5bc32a71e3d8@linutronix.de> To: Kees Cook , Arnd Bergmann Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, loongarch@lists.linux.dev, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mips@vger.kernel.org, sparclinux@vger.kernel.org, linux-sh@vger.kernel.org, linux-alpha@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Developer-Signature: v=1; a=ed25519-sha256; t=1788421286; l=1994; i=thomas.weissschuh@linutronix.de; s=20240209; h=from:subject:message-id; bh=b7W/p77P/YlmxuUHtTjOCqsXrUn80Pb/0CSphAb3eXc=; b=8bCm4iBaPTW9zBWat/+m5Ee1rmwD4EqMaEgVhxezGGaTPE5ECabv+Lrj7OAgMtDB5ybLV0Bjy LrdI/FLc2B7BI3Ex+/EIsufonLKjzeY5VOZWKidM6LruyvF2pR3gqlh X-Developer-Key: i=thomas.weissschuh@linutronix.de; a=ed25519; pk=pfvxvpFUDJV2h2nY0FidLUml22uGLSjByFbM6aqQQws= There is nothing userspace can do with this value. In the kernel is always combined with AT_VECTOR_SIZE_BASE, which is not exposed to userspace and also changes from time to time. Move the symbol to a kernel-internal header. Signed-off-by: Thomas Weißschuh Reviewed-by: Kees Cook --- arch/x86/include/asm/auxvec.h | 12 ++++++++++++ arch/x86/include/uapi/asm/auxvec.h | 13 +++---------- 2 files changed, 15 insertions(+), 10 deletions(-) diff --git a/arch/x86/include/asm/auxvec.h b/arch/x86/include/asm/auxvec.h new file mode 100644 index 000000000000..ed26ad09f3e3 --- /dev/null +++ b/arch/x86/include/asm/auxvec.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_AUXVEC_H +#define _ASM_X86_AUXVEC_H + +/* entries in ARCH_DLINFO: */ +#if defined(CONFIG_IA32_EMULATION) || !defined(CONFIG_X86_64) +# define AT_VECTOR_SIZE_ARCH 3 +#else /* else it's non-compat x86-64 */ +# define AT_VECTOR_SIZE_ARCH 2 +#endif + +#endif /* _ASM_X86_AUXVEC_H */ diff --git a/arch/x86/include/uapi/asm/auxvec.h b/arch/x86/include/uapi/asm/auxvec.h index bdde9e18f94e..6677c9ace117 100644 --- a/arch/x86/include/uapi/asm/auxvec.h +++ b/arch/x86/include/uapi/asm/auxvec.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_X86_AUXVEC_H -#define _ASM_X86_AUXVEC_H +#ifndef _UAPI_ASM_X86_AUXVEC_H +#define _UAPI_ASM_X86_AUXVEC_H /* * Architecture-neutral AT_ values in 0-17, leave some room * for more of them, start the x86-specific ones at 32. @@ -10,11 +10,4 @@ #endif #define AT_SYSINFO_EHDR 33 -/* entries in ARCH_DLINFO: */ -#if defined(__KERNEL__) && (defined(CONFIG_IA32_EMULATION) || !defined(CONFIG_X86_64)) -# define AT_VECTOR_SIZE_ARCH 3 -#else /* else it's non-compat x86-64 */ -# define AT_VECTOR_SIZE_ARCH 2 -#endif - -#endif /* _ASM_X86_AUXVEC_H */ +#endif /* _UAPI_ASM_X86_AUXVEC_H */ -- 2.55.0