From mboxrd@z Thu Jan 1 00:00:00 1970 From: shijie8@gmail.com (Huang Shijie) Date: Sun, 30 Nov 2014 23:39:26 +0800 Subject: [PATCH v5 1/3] mtd: nand: gpmi: add gpmi_move_bits function In-Reply-To: <20141130095500.16f75e05@bbrezillon> References: <1417020793-3354-1-git-send-email-boris.brezillon@free-electrons.com> <1417020793-3354-2-git-send-email-boris.brezillon@free-electrons.com> <20141126175708.1acb90ac@bbrezillon> <20141130081110.GC3608@norris-Latitude-E6410> <20141130095500.16f75e05@bbrezillon> Message-ID: <20141130153918.GA14834@localhost.localdomain> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sun, Nov 30, 2014 at 09:55:00AM +0100, Boris Brezillon wrote: > Hi Brian, > > On Sun, 30 Nov 2014 00:11:10 -0800 > Brian Norris wrote: > > > On Wed, Nov 26, 2014 at 05:57:08PM +0100, Boris Brezillon wrote: > > > On Wed, 26 Nov 2014 17:53:11 +0100 Boris Brezillon wrote: > > > > +/** > > > > + * gpmi_move_bits - move bits from one memory region to another > > > > + * @dst: destination buffer > > > > + * @dst_bit_off: bit offset we're starting to write at > > > > + * @src: source buffer > > > > + * @src_bit_off: bit offset we're starting to read from > > > > + * @nbits: number of bits to copy > > > > + * > > > > + * This functions copies bits from one memory region to another, and is used by > > > > + * the GPMI driver to copy ECC sections which are not guaranteed to be byte > > > > + * aligned. > > > > > > I forgot to add that src and dst should not overlap, otherwise it won't > > > work... > > > > Hmm, normally that's implied for copy-like operations. But since you > > named this function "move" (rather than "copy" or "cpy"), that's a > > little less clear. > > Indeed, that's a good point. > > > > > Did you have a good reason for the "move" name? If not, maybe it's worth > > changing. > > No, I don't, and I'd prefer changing the name than implementing a non > destructive move function. > > I'll send a new version with this change. Please add my tested-by. Tested-by: Huang Shijie