On 2014-09-11, Hansen, Dave wrote: > On 09/11/2014 01:46 AM, Qiaowei Ren wrote: >> + >> + return (void __user *)(unsigned long)(xsave_buf->bndcsr.cfg_reg_u & >> + MPX_BNDCFG_ADDR_MASK); >> +} > > I don't think casting a u64 to a ulong, then to a pointer is useful. > Just take the '(unsigned long)' out. If so, this will spits out a warning on 32-bit: arch/x86/kernel/mpx.c: In function 'task_get_bounds_dir': arch/x86/kernel/mpx.c:21:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] Thanks, Qiaowei -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href