On Fri, Nov 28, 2014 at 02:10:36AM +0000, 敬锐 wrote: > eg, in sd_ops.c the cmd.arg is constructed bit by bit, we can put the right > byte to the right register by shift, so the endian check is not need. I looked at drivers/mmc/core/sd_ops.c and cmd.arg seems to be cpu endian. The new function assumes that the cpu is little endian and manually converts it to little endian. This is an endian bug. I think my fix is correct or something similar. regards, dan carpenter -- 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