From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga01.intel.com ([192.55.52.88]) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UFkPG-00086I-AZ for linux-mtd@lists.infradead.org; Wed, 13 Mar 2013 12:03:43 +0000 From: Artem Bityutskiy To: MTD Maling List Subject: [PATCH] mtd: nand: use more reasonable integer types Date: Wed, 13 Mar 2013 14:05:00 +0200 Message-Id: <1363176300-9016-1-git-send-email-dedekind1@gmail.com> Cc: Huang Shijie List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Artem Bityutskiy Use 'unsigned int' instead of 'unsigned long' in the NAND chip description data structure, because 32-bits is more than enough for our purposes. We do not need 64-bits, which is what we end up on 64-bit architectures. We declare many instances of this data structure, so this should help saving some amount of memory. Signed-off-by: Artem Bityutskiy --- include/linux/mtd/nand.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 0c40beb..e2c7173 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -578,8 +578,8 @@ struct nand_chip { * @pagesize: size of the NAND page in bytes; if 0, then the real page size (as * well as the eraseblock size) is determined from the extended NAND * chip ID array) - * @erasesize: eraseblock size in bytes (determined from the extended ID if 0) * @chipsize: total chip size in MiB + * @erasesize: eraseblock size in bytes (determined from the extended ID if 0) * @options: stores various chip bit options */ struct nand_flash_dev { @@ -591,10 +591,10 @@ struct nand_flash_dev { }; uint8_t id[8]; }; - unsigned long pagesize; - unsigned long chipsize; - unsigned long erasesize; - unsigned long options; + unsigned int pagesize; + unsigned int chipsize; + unsigned int erasesize; + unsigned int options; }; /** -- 1.7.10.4