>From 27d46f5697434542ad9cafbc6a9630dc14915f91 Mon Sep 17 00:00:00 2001 From: Jeonghan Kim <jh4u.kim@xxxxxxxxxxx> Date: Wed, 19 Oct 2016 19:48:02 +0900 Subject: [PATCH] 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@xxxxxxxxxxx> --- include/uapi/linux/mmc/ioctl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/mmc/ioctl.h b/include/uapi/linux/mmc/ioctl.h index 7e385b8..700a551 100644 --- a/include/uapi/linux/mmc/ioctl.h +++ b/include/uapi/linux/mmc/ioctl.h @@ -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 */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html