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 71E9EC433EF for ; Wed, 13 Apr 2022 07:11:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233195AbiDMHOG (ORCPT ); Wed, 13 Apr 2022 03:14:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231781AbiDMHOE (ORCPT ); Wed, 13 Apr 2022 03:14:04 -0400 Received: from mail-wr1-x431.google.com (mail-wr1-x431.google.com [IPv6:2a00:1450:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 573933464C for ; Wed, 13 Apr 2022 00:11:43 -0700 (PDT) Received: by mail-wr1-x431.google.com with SMTP id k22so1246009wrd.2 for ; Wed, 13 Apr 2022 00:11:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Si/3MbWwfZmH4gHSlx8bfIyFjYYqoAHuCjt8KTbCgdQ=; b=ar4zDSwNZL+cCtEeGILU8VaPb61RRvMB9bbOIsYFHT/D8VLlJprUmgOuYrrZEnNscX 66dJRXcz+4lDTfZJHsqb1063QlSKml+kxC+Bb4ApA6G4xwRCC0ndS2tge9u1SOa4dJH6 EXZSR8Y/CBns7GZTHCpZgy3kaDXBNspbUl+761CF37VnRbY/u7UnRI1D1NWz9IoqSytS cAxhU+TW2v20c1RTqgtfU3ovqAP5ZzJxUQX7nZVW3e7+J3VhFOCRrFx6ML/Cws/2wP69 pB7ztA1oeeef/ZfLTkAzUrMsLzwQhPyMmgZo4UOf7XbrTwWFRqdxC+osJxd5aMcfU8u9 i8sg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Si/3MbWwfZmH4gHSlx8bfIyFjYYqoAHuCjt8KTbCgdQ=; b=rqwIfAZzf6yftThBZdl+cuT7RfxFdnbQ8oSoIS/QP/oKGiVn9L3t9+01IJzY25QClJ zeVK01h+KTuToaGu7h9mHbllpSi3s8TzbcBY3ZLWzJ7GnBpDGXSUXBE6dfjAM+F0TLW8 9r44oQ9e65EB90So7PdryxL2cEL7yISKntOpJolvixhZTGQn0JVuiXyBFmlnftzQv6t9 G3xuxB/PCgCi67raRA0rk+Ay3wBykp8vNzGwlfBjNJzr9mfRx9ae2BDlcQcQ/bwdOmeJ YimgTFN0aUfaFGZVghHj9nMbQ1b+GvOVobIO/qJFUBdp3RfhNq0jOaIHQcs8e6c+zTRN utUA== X-Gm-Message-State: AOAM530I72DiSjHOgXM/iDXYFAg7m16oGGDH8A8pLkciwlV5VajOvXoR x3beIooZiFszn7tIOwM6RW8tbilcyun6DA== X-Google-Smtp-Source: ABdhPJydOdWvQlu62gj+Tyjj1K6o+0v6Sdo48nGv500/8n/pBF4xK6Bd3vEpqm8kJYxbcwNpK5B9Vg== X-Received: by 2002:adf:ea91:0:b0:207:b779:7890 with SMTP id s17-20020adfea91000000b00207b7797890mr1139788wrm.676.1649833901867; Wed, 13 Apr 2022 00:11:41 -0700 (PDT) Received: from mclaren.neureality.corp (82.166.25.98.fix.netvision.net.il. [82.166.25.98]) by smtp.gmail.com with ESMTPSA id p1-20020a5d59a1000000b002078c8b6dabsm18038442wrr.9.2022.04.13.00.11.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Apr 2022 00:11:41 -0700 (PDT) From: Ramon Fried To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org Cc: Ramon Fried Subject: [PATCH] uio: make MAX_UIO_MAPS & MAX_UIO_PORT_REGIONS configurable Date: Wed, 13 Apr 2022 10:11:37 +0300 Message-Id: <20220413071137.4023184-1-rfried.dev@gmail.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org MAX_UIO_MAPS and MAX_UIO_PORT_REGIONS are hard-coded to 5. This is not always sufficiant for some drivers. Make the MAX_UIO_MAPS and MAX_UIO_PORT_REGIONS configurable by providing Kconfig int option with the defaut value of 5. Signed-off-by: Ramon Fried --- drivers/uio/Kconfig | 14 ++++++++++++++ include/linux/uio_driver.h | 4 ++-- 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig index 2e16c5338e5b..bc1fe83cec13 100644 --- a/drivers/uio/Kconfig +++ b/drivers/uio/Kconfig @@ -13,6 +13,20 @@ menuconfig UIO if UIO +config UIO_MAX_MAPS + int "Maximum of memory nodes each uio device support(1-128)" + range 1 128 + default 5 + help + Maximum memory mapping each uio device can support. + +config UIO_MAX_PORT_REGIONS + int "Maximum of port regions each uio device support(1-128)" + range 1 128 + default 5 + help + Maximum port regions each uio device can support. + config UIO_CIF tristate "generic Hilscher CIF Card driver" depends on PCI diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h index 47c5962b876b..f7dc47347c71 100644 --- a/include/linux/uio_driver.h +++ b/include/linux/uio_driver.h @@ -44,7 +44,7 @@ struct uio_mem { struct uio_map *map; }; -#define MAX_UIO_MAPS 5 +#define MAX_UIO_MAPS CONFIG_UIO_MAX_MAPS struct uio_portio; @@ -64,7 +64,7 @@ struct uio_port { struct uio_portio *portio; }; -#define MAX_UIO_PORT_REGIONS 5 +#define MAX_UIO_PORT_REGIONS CONFIG_UIO_MAX_PORT_REGIONS struct uio_device { struct module *owner; -- 2.30.2