From patchwork Thu Dec 29 09:27:08 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artem Bityutskiy X-Patchwork-Id: 133508 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:4978:20e::2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 30196B6FBD for ; Thu, 29 Dec 2011 20:27:37 +1100 (EST) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1RgCFm-0004dc-IN; Thu, 29 Dec 2011 09:26:26 +0000 Received: from mga01.intel.com ([192.55.52.88]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1RgCF5-0004Rf-9r for linux-mtd@lists.infradead.org; Thu, 29 Dec 2011 09:25:46 +0000 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 29 Dec 2011 01:25:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.71,315,1320652800"; d="scan'208";a="101263567" Received: from sauron.fi.intel.com ([10.237.72.160]) by fmsmga001.fm.intel.com with ESMTP; 29 Dec 2011 01:25:38 -0800 From: dedekind1@gmail.com To: linux-mtd@lists.infradead.org Subject: [PATCH v2 04/27] mtd: introduce mtd_point interface Date: Thu, 29 Dec 2011 11:27:08 +0200 Message-Id: <1325150851-2805-5-git-send-email-dedekind1@gmail.com> X-Mailer: git-send-email 1.7.7.4 In-Reply-To: <1325150851-2805-1-git-send-email-dedekind1@gmail.com> References: <1325150851-2805-1-git-send-email-dedekind1@gmail.com> X-Spam-Note: CRM114 invocation failed X-Spam-Score: -5.1 (-----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-5.1 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [192.55.52.88 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dedekind1[at]gmail.com) 0.0 DKIM_ADSP_CUSTOM_MED No valid author signature, adsp_override is CUSTOM_MED 0.8 SPF_NEUTRAL SPF: sender does not match SPF record (neutral) 0.1 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit (dedekind1[at]gmail.com) -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.9 NML_ADSP_CUSTOM_MED ADSP custom_med hit, and not from a mailing list Cc: Mike Dunn X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-mtd-bounces@lists.infradead.org Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Artem Bityutskiy Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdpart.c | 4 ++-- fs/jffs2/erase.c | 4 ++-- fs/jffs2/readinode.c | 4 ++-- fs/jffs2/scan.c | 4 ++-- include/linux/mtd/mtd.h | 14 ++++++++++---- 5 files changed, 18 insertions(+), 12 deletions(-) diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index d318fee..5b66472 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -89,8 +89,8 @@ static int part_point(struct mtd_info *mtd, loff_t from, size_t len, len = 0; else if (from + len > mtd->size) len = mtd->size - from; - return part->master->point (part->master, from + part->offset, - len, retlen, virt, phys); + return mtd_point(part->master, from + part->offset, len, retlen, + virt, phys); } static void part_unpoint(struct mtd_info *mtd, loff_t from, size_t len) diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index 540e8ec..53f8794 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -340,8 +340,8 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl if (c->mtd->point) { unsigned long *wordebuf; - ret = c->mtd->point(c->mtd, jeb->offset, c->sector_size, - &retlen, &ebuf, NULL); + ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen, + &ebuf, NULL); if (ret) { D1(printk(KERN_DEBUG "MTD point failed %d\n", ret)); goto do_flash_read; diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c index ee57bac..dde61ef 100644 --- a/fs/jffs2/readinode.c +++ b/fs/jffs2/readinode.c @@ -63,8 +63,8 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info /* TODO: instead, incapsulate point() stuff to jffs2_flash_read(), * adding and jffs2_flash_read_end() interface. */ if (c->mtd->point) { - err = c->mtd->point(c->mtd, ofs, len, &retlen, - (void **)&buffer, NULL); + err = mtd_point(c->mtd, ofs, len, &retlen, (void **)&buffer, + NULL); if (!err && retlen < len) { JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize); c->mtd->unpoint(c->mtd, ofs, retlen); diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c index 28107ca..53e05c8 100644 --- a/fs/jffs2/scan.c +++ b/fs/jffs2/scan.c @@ -97,8 +97,8 @@ int jffs2_scan_medium(struct jffs2_sb_info *c) size_t pointlen, try_size; if (c->mtd->point) { - ret = c->mtd->point(c->mtd, 0, c->mtd->size, &pointlen, - (void **)&flashbuf, NULL); + ret = mtd_point(c->mtd, 0, c->mtd->size, &pointlen, + (void **)&flashbuf, NULL); if (!ret && pointlen < c->mtd->size) { /* Don't muck about if it won't let us point to the whole flash */ D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", pointlen)); diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 201bad5..ca7bfda 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -175,11 +175,8 @@ struct mtd_info { * wrappers instead. */ int (*erase) (struct mtd_info *mtd, struct erase_info *instr); - - /* This stuff for eXecute-In-Place */ - /* phys is optional and may be set to NULL */ int (*point) (struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, void **virt, resource_size_t *phys); + size_t *retlen, void **virt, resource_size_t *phys); /* We probably shouldn't allow XIP if the unpoint isn't a NULL */ void (*unpoint) (struct mtd_info *mtd, loff_t from, size_t len); @@ -283,6 +280,15 @@ static inline int mtd_erase(struct mtd_info *mtd, struct erase_info *instr) return mtd->erase(mtd, instr); } +/* + * This stuff for eXecute-In-Place. phys is optional and may be set to NULL. + */ +static inline int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, void **virt, resource_size_t *phys) +{ + return mtd->point(mtd, from, len, retlen, virt, phys); +} + static inline struct mtd_info *dev_to_mtd(struct device *dev) { return dev ? dev_get_drvdata(dev) : NULL;