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Commit 859c0a5b authored by Roland McGrath's avatar Roland McGrath Committed by Ingo Molnar
Browse files

x86: get_desc_base 



This defines the get_desc_base function in asm-x86/desc_64.h to match the
one in desc_32.h.  If these two files ever get merged together, this
function could be the same in both.

Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent cadd5164

include/asm-x86/desc_64.h

+10 −0
Original line number Diff line number Diff line
@@ -215,6 +215,16 @@ static inline void load_LDT(mm_context_t *pc) 


extern struct desc_ptr idt_descr;



static inline unsigned long get_desc_base(const void *ptr)

{

	const u32 *desc = ptr;

	unsigned long base;

	base = ((desc[0] >> 16)  & 0x0000ffff) |

		((desc[1] << 16) & 0x00ff0000) |

		(desc[1] & 0xff000000);

	return base;

}



#endif /* !__ASSEMBLY__ */



#endif