mtd: nand: use more reasonable integer types (ecb42fea) · Commits · 戴 / test

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 <artem.bityutskiy@linux.intel.com> Signed-off-by:

David Woodhouse <David.Woodhouse@intel.com>

include/linux/mtd/nand.h

+5 −5

Original line number	Diff line number	Diff line
		@@ -582,8 +582,8 @@ 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 {
		@@ -595,10 +595,10 @@ 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;
		};

		/**

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