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 05D6180BF3; Mon, 8 Apr 2024 14:06:26 +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=1712585186; cv=none; b=tMdgALQ6dJfmJ6yYtWV6wK+CxKYeuwqJsfxEC8iv6rmVw+BcLTxH3FzyJ99avY8gjMAMQUHDmqE2+GbfpDpa02SVBbixOtptbK7dJ9rhLxLZaVJKtazp1uTEpR3W/S01rLuSDZd5W69gbAh66SufWXsB4PyDWtqjiZr7vqYYX2Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712585186; c=relaxed/simple; bh=nvN5SQ+jjbjMmizusGpgRHSKSkS0l+3MhGVwklqrq/A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bCnnso2N+yE3cIIqnhYfVJkmDzQFsu4lquCnY8ClGVSRRFrVRj4e5gAJTHqDvd4Pgt7N3ZNN9u7SMZ/1NDHTb1n0hm8xKeIG5v9DR0OvDRQKp4VZQXfz4NR4AJSs+xRBaaF/mFxjmgZw7RWx1Ny8wLPmnNu9uanzl275K2Udy50= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=bOmzklwn; 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="bOmzklwn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 805ADC433C7; Mon, 8 Apr 2024 14:06:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712585185; bh=nvN5SQ+jjbjMmizusGpgRHSKSkS0l+3MhGVwklqrq/A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bOmzklwnyuYLLsf68/ky5oLP4pA+4bbVJKAwo3vcwGmWy82QDnTL4ha3Up02TLArI QmUdNw3SwNPI9gdWgmbNbg+s+JjyP/Idi+AqPcgwNB4wIA0mEAzHJoe1HbDamrS4nh 2+aoSVxyd3Qi5Jf94LH/4BoBCblEbEcXraHjxigU= 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 5.15 682/690] s390/entry: align system call table on 8 bytes Date: Mon, 8 Apr 2024 14:59:08 +0200 Message-ID: <20240408125424.432126203@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240408125359.506372836@linuxfoundation.org> References: <20240408125359.506372836@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 5.15-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 @@ -685,6 +685,7 @@ ENDPROC(stack_overflow) .Lthis_cpu: .short 0 .Lstosm_tmp: .byte 0 .section .rodata, "a" + .balign 8 #define SYSCALL(esame,emu) .quad __s390x_ ## esame .globl sys_call_table sys_call_table: