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 948DD79F0; Mon, 8 Apr 2024 13:46:12 +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=1712583972; cv=none; b=MG4PlQl2jD7fvNhUs2q68GvN375VXZ/2Dg0RgKUJLe4KpQHBDrFP8RcwPqvS6pWxV2t+T4IxGg0sOVrqqvgdbSzrumQNGKigsdXnbCG9iLg5CFh6QnlFV8undFJgIM+L71XwXW8m6PL+Oi9wtVYK0Jx7oCbSAPFn43gLF3byTV4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712583972; c=relaxed/simple; bh=WGSp13Ge5nqR6Kja8I4XOoqp8BOJrSg88Gp1BocK4ZE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oWTXA4v0OPwGrcrfShHYVLiUsFpGLKQX+Uw3k6V47kmS1bBtmOdparKbz2INiPL1vUUolV7/5dWLXpOgmI2f7B7qB653S55d98W5Df+X2B7XtfmNvwCO0Dqlag+DaDU/RcVbxL5+VUYLBAjVgUtRtmvqvA82Ctj2m1aiNYydoow= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=V5l/VNNd; 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="V5l/VNNd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1D39CC433F1; Mon, 8 Apr 2024 13:46:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712583972; bh=WGSp13Ge5nqR6Kja8I4XOoqp8BOJrSg88Gp1BocK4ZE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=V5l/VNNdaCluKNChiFxROE07CLzBj8r8N2VINyewx0+VlN4nSPYim4097rqhgD6fc GYYCYdADfr7X/4zZDopQuaAbSXel1KVDA3/rPI6UT1GzXw0oysJDKK8p7ewqYpl0So YTN8fbxPsOuBveYox0Jk0883UFj64bJwGm2YASUE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable@kernel.org, Ulrich Weigand , Alexander Gordeev , Sumanth Korikkar , Vasily Gorbik Subject: [PATCH 6.8 240/273] s390/entry: align system call table on 8 bytes Date: Mon, 8 Apr 2024 14:58:35 +0200 Message-ID: <20240408125316.887670991@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240408125309.280181634@linuxfoundation.org> References: <20240408125309.280181634@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 6.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sumanth Korikkar commit 378ca2d2ad410a1cd5690d06b46c5e2297f4c8c0 upstream. Align system call table on 8 bytes. With sys_call_table entry size of 8 bytes that eliminates the possibility of a system call pointer crossing cache line boundary. Cc: stable@kernel.org Suggested-by: Ulrich Weigand Reviewed-by: Alexander Gordeev Signed-off-by: Sumanth Korikkar Signed-off-by: Vasily Gorbik Signed-off-by: Greg Kroah-Hartman --- arch/s390/kernel/entry.S | 1 + 1 file changed, 1 insertion(+) --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -653,6 +653,7 @@ SYM_DATA_START_LOCAL(daton_psw) SYM_DATA_END(daton_psw) .section .rodata, "a" + .balign 8 #define SYSCALL(esame,emu) .quad __s390x_ ## esame SYM_DATA_START(sys_call_table) #include "asm/syscall_table.h"