On Dec 26 2007 17:01, H. Peter Anvin wrote: >> > @@ -215,7 +215,9 @@ asmlinkage int sys_vm86old(struct pt_reg >> > ret = -EFAULT; >> > if (tmp) >> > goto out; >> > - memset(&info.vm86plus, 0, (int)&info.regs32 - (int)&info.vm86plus); >> > + memset(&info.vm86plus, 0, >> > + offsetof(struct kernel_vm86_struct, regs32) - >> > + offsetof(struct kernel_vm86_struct, vm86plus)); >> >> I do not think this makes it more readable... (int) -> (char *) would >> make it portable and readable, AFAICT. >> Pavel > > The right way to do it is: > > memset(&info.vm86plus, 0, sizeof info.vm86plus);
Either way, downcasting a pointer to (int) is dangerous, even if this one occurrence happens to be in 32-bit-only code. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
