desc.h

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#ifndef __UM_DESC_H
#define __UM_DESC_H

/* Taken from asm-i386/desc.h, it's the only thing we need. The rest wouldn't
 * compile, and has never been used. */
#define LDT_empty(info) (\
    (info)->base_addr   == 0    && \
    (info)->limit       == 0    && \
    (info)->contents    == 0    && \
    (info)->read_exec_only  == 1    && \
    (info)->seg_32bit   == 0    && \
    (info)->limit_in_pages  == 0    && \
    (info)->seg_not_present == 1    && \
    (info)->useable     == 0    )

#endif