Commit 417b1bf8 authored Oct 19, 2016 by Jeonghan Kim Committed by Ulf Hansson Nov 29, 2016

mmc: block: Change MMC_IOC_MAX_BYTES



It is used for limitation of buffer size during IOCTL such as FFU.
However, eMMC FW size is bigger than (512L*256).
(For instance, currently, Samsung eMMC FW size is over 300KB.)
So, it needs to increase to execute FFU.

Signed-off-by: Jeonghan Kim <jh4u.kim@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

parent d9943c68

include/uapi/linux/mmc/ioctl.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -69,6 +69,6 @@ struct mmc_ioc_multi_cmd {
		* is enforced per ioctl call. For larger data transfers, use the normal
		* block device operations.
		*/
		#define MMC_IOC_MAX_BYTES (512L * 256)
		#define MMC_IOC_MAX_BYTES (512L * 1024)
		#define MMC_IOC_MAX_CMDS 255
		#endif /* LINUX_MMC_IOCTL_H */