From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3C696EE49A6 for ; Mon, 21 Aug 2023 17:40:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236984AbjHURkr (ORCPT ); Mon, 21 Aug 2023 13:40:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235173AbjHURkr (ORCPT ); Mon, 21 Aug 2023 13:40:47 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB38D100 for ; Mon, 21 Aug 2023 10:40:45 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4206861168 for ; Mon, 21 Aug 2023 17:40:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9997BC433CB; Mon, 21 Aug 2023 17:40:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1692639644; bh=f1Oc3YLAAdWLW4b6LVvNlVACM6/t5Zx3xquOOLIcBqM=; h=Date:To:From:Subject:From; b=OajErd6VE/hrTWbWRWjAkcUCwpUCQ/rIYY37HlwAqAhIoF60WPgcnUVzNK/8arf1Z qM55DvLfPnZ3BDtmSy1To789n9053tw6V6gKp+pXZwz1IPZrnsYoSbjfWtWITsaxij j4MdugppgeZL20oR3I+a1UMj8mpNbkmsd8kPPOZA= Date: Mon, 21 Aug 2023 10:40:43 -0700 To: mm-commits@vger.kernel.org, gregkh@linuxfoundation.org, adobriyan@gmail.com, akpm@linux-foundation.org From: Andrew Morton Subject: + char-shrink-character-devices-devlist-array.patch added to mm-nonmm-unstable branch Message-Id: <20230821174044.9997BC433CB@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: drivers/char/mem.c: shrink character device's devlist[] array has been added to the -mm mm-nonmm-unstable branch. Its filename is char-shrink-character-devices-devlist-array.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/char-shrink-character-devices-devlist-array.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Alexey Dobriyan Subject: drivers/char/mem.c: shrink character device's devlist[] array Date: Mon, 21 Aug 2023 17:54:05 +0300 Merge padding, shrinking "struct memdev" from 32 bytes to 24 bytes on 64-bit. Link: https://lkml.kernel.org/r/fe4d62ab-2427-4635-b9f4-467853fb63e3@p183 Signed-off-by: Alexey Dobriyan Cc: Greg Kroah-Hartman Signed-off-by: Andrew Morton --- drivers/char/mem.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) --- a/drivers/char/mem.c~char-shrink-character-devices-devlist-array +++ a/drivers/char/mem.c @@ -692,23 +692,23 @@ static const struct file_operations full static const struct memdev { const char *name; - umode_t mode; const struct file_operations *fops; fmode_t fmode; + umode_t mode; } devlist[] = { #ifdef CONFIG_DEVMEM - [DEVMEM_MINOR] = { "mem", 0, &mem_fops, FMODE_UNSIGNED_OFFSET }, + [DEVMEM_MINOR] = { "mem", &mem_fops, FMODE_UNSIGNED_OFFSET, 0 }, #endif - [3] = { "null", 0666, &null_fops, FMODE_NOWAIT }, + [3] = { "null", &null_fops, FMODE_NOWAIT, 0666 }, #ifdef CONFIG_DEVPORT - [4] = { "port", 0, &port_fops, 0 }, + [4] = { "port", &port_fops, 0, 0 }, #endif - [5] = { "zero", 0666, &zero_fops, FMODE_NOWAIT }, - [7] = { "full", 0666, &full_fops, 0 }, - [8] = { "random", 0666, &random_fops, FMODE_NOWAIT }, - [9] = { "urandom", 0666, &urandom_fops, FMODE_NOWAIT }, + [5] = { "zero", &zero_fops, FMODE_NOWAIT, 0666 }, + [7] = { "full", &full_fops, 0, 0666 }, + [8] = { "random", &random_fops, FMODE_NOWAIT, 0666 }, + [9] = { "urandom", &urandom_fops, FMODE_NOWAIT, 0666 }, #ifdef CONFIG_PRINTK - [11] = { "kmsg", 0644, &kmsg_fops, 0 }, + [11] = { "kmsg", &kmsg_fops, 0, 0644 }, #endif }; _ Patches currently in -mm which might be from adobriyan@gmail.com are adfs-delete-unused-union-adfs_dirtail-definition.patch char-shrink-character-devices-devlist-array.patch