From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bernhard Reutner-Fischer Subject: Re: [PATCH 07/10] AXFS: axfs_bdev.c Date: Fri, 22 Aug 2008 14:54:40 +0200 Message-ID: <20080822125440.GA1396@mx.loc> References: <48AD010B.6030209@gmail.com> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:received:date:from:to:cc :subject:message-id:references:mime-version:content-type :content-disposition:in-reply-to:user-agent; bh=m3GZbBE4szTsX+XAzEosBr3j1sWczpVybrnAfS0pAOs=; b=ir4aCY59/SE4zA0KYPFAQHasSUvTf+KKf9h2IHjEdrKtZMRNKPDZOLeqQx6ACuR6bJ vqU3Dg4+jMxbCmBPVHjgz65ozWkJH5Gt29N4L+6PHEAKfUaoqM4fqSczOUXkaC5ebYW2 aI2Jj0ZSzg1HtTD/fhYXG+3etdeib9Mm4yhuA= Content-Disposition: inline In-Reply-To: <48AD010B.6030209@gmail.com> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Jared Hulbert Cc: Linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org, linux-mtd , =?iso-8859-1?Q?J=F6rn?= Engel , tim.bird@AM.SONY.COM, cotte@de.ibm.com, nickpiggin@yahoo.com.au On Wed, Aug 20, 2008 at 10:45:47PM -0700, Jared Hulbert wrote: >+/****************************************************************************** >+ * >+ * axfs_copy_block_data >+ * >+ * Description: Helper function to read data from block device >+ * >+ * Parameters: >+ * (IN) sb - pointer to super block structure. >+ * >+ * (IN) dst_addr - pointer to buffer into which data is to be read. >+ * >+ * (IN) boffset - offset within block device >+ * >+ * (IN) len - length of data to be read >+ * >+ * Returns: >+ * 0 or error number >+ * >+ *****************************************************************************/ >+int axfs_copy_block(struct super_block *sb, void *dst_addr, u64 fsoffset, >+ u64 len) mismatch between documentation and implementation WRT the function name ;) >+{ >+ struct axfs_super *sbi = AXFS_SB(sb); >+ u64 boffset = AXFS_FSOFFSET_2_DEVOFFSET(sbi, fsoffset); >+ u64 blocks; >+ u64 blksize = sb->s_blocksize; >+ unsigned long dst; >+ unsigned long src; >+ sector_t block; >+ size_t bytes; >+ struct buffer_head *bh; >+ u64 copied = 0; >+ >+ if (len == 0) >+ return 0; >+ >+ blocks = len / blksize; >+ if ((len % blksize) > 0) >+ blocks += 1; >+ >+ while (copied < len) { >+ /* Explicit casting for ARM linker errors. */ did it try to emit some external div()? Is this still needed?