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 2A0697C6C8; Mon, 8 Apr 2024 13:41:27 +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=1712583687; cv=none; b=NLvmPGNz1iR0VAbU8ysoU4IQi6TeiCiHSiduuk2BuED/9etgjDOFspOUGaKZU4rt2btcfNV5HnTdvdRjTr5YURsLpLG+Bb60cvJtYlh1Epb1os5LySscg5eId8JIU6XRix2cm+Jz6kO7EyZKxr86+HVkoxW1PvYZbAg6CnfxAPg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712583687; c=relaxed/simple; bh=RJbLnAjkY9wfo4zMMmTlq6PwfB57rGJ97KyRdBX12pE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=H0c6Vhvsxd3yxwMzraBj4NVB+SXBJijuqACq5d4B7GP/K3QyLRKyuFcnWyXpbw1ZfvUMeaAn27tEcOmj6Jm3kRY8AqTz3HPbtAQo/Vt0Y2E0sibakgEYix1IKVzGGJafxPWTxrmnqm2Cap9Ay1CmrDrVmSSw1b09JtS3vtQGbJo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=SWmURXBT; 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="SWmURXBT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A60D8C433F1; Mon, 8 Apr 2024 13:41:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712583687; bh=RJbLnAjkY9wfo4zMMmTlq6PwfB57rGJ97KyRdBX12pE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SWmURXBTqxdhFew91u2CmT1r3o7bx8bTkq2wDo3xSr2faM0IOp9cAE83hq3bwtRlg I5U3OBz3fGx63qMq0PIVl4ujoSoXm4Uni1CEgB94AkakevH8SFGAELK+rKgcNp8S3A xcSmRJMz+CmSf6sM498JB7jngENxArlOw7ZUIMTQ= 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 6.6 223/252] s390/entry: align system call table on 8 bytes Date: Mon, 8 Apr 2024 14:58:42 +0200 Message-ID: <20240408125313.578682732@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240408125306.643546457@linuxfoundation.org> References: <20240408125306.643546457@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: 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"