Re: [PATCH 1/3] arch/x86: Use offsetof

[H. Peter Anvin]

Al Viro wrote:
> On Wed, Dec 26, 2007 at 05:01:38PM -0800, H. Peter Anvin wrote:
>
> > The right way to do it is:
> >
> > 	memset(&info.vm86plus, 0, sizeof info.vm86plus);
>
> If it's just one field _and_ we don't have padding we want to zero out -
> certainly...

It is - [comments removed for clarity]:

struct kernel_vm86_struct {
        struct kernel_vm86_regs regs;
#define VM86_TSS_ESP0 flags
        unsigned long flags;
        unsigned long screen_bitmap;
        unsigned long cpu_type;
        struct revectored_struct int_revectored;
        struct revectored_struct int21_revectored;
        struct vm86plus_info_struct vm86plus;
        struct pt_regs *regs32;
};
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