From a8ab98484a1b3e072e2b4ac720dcb0690ec4edfa Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Fri, 22 Jun 2012 12:33:41 +0200 Subject: [PATCH] m68k: Remove never used asm/shm.h m68k's asm/shm.h header has been part of the tree ever since m68k support got added in v1.3.94. (It started as /include/asm-m68k/shm.h and moved to its current location a few years ago.) It seems it was never used: no file ever included it and nothing used the macros it defines. (Actually, from v2.5.46 until v2.6.29-rc3 it was included by m68knommu's asm/shm.h. But that header was just a very thin wrapper for this header and was itself unused too.) This header can safely be removed. Signed-off-by: Paul Bolle Signed-off-by: Geert Uytterhoeven --- arch/m68k/include/asm/shm.h | 31 ------------------------------- 1 file changed, 31 deletions(-) delete mode 100644 arch/m68k/include/asm/shm.h diff --git a/arch/m68k/include/asm/shm.h b/arch/m68k/include/asm/shm.h deleted file mode 100644 index fa56ec8..0000000 --- a/arch/m68k/include/asm/shm.h +++ /dev/null @@ -1,31 +0,0 @@ -#ifndef _M68K_SHM_H -#define _M68K_SHM_H - - -/* format of page table entries that correspond to shared memory pages - currently out in swap space (see also mm/swap.c): - bits 0-1 (PAGE_PRESENT) is = 0 - bits 8..2 (SWP_TYPE) are = SHM_SWP_TYPE - bits 31..9 are used like this: - bits 15..9 (SHM_ID) the id of the shared memory segment - bits 30..16 (SHM_IDX) the index of the page within the shared memory segment - (actually only bits 25..16 get used since SHMMAX is so low) - bit 31 (SHM_READ_ONLY) flag whether the page belongs to a read-only attach -*/ -/* on the m68k both bits 0 and 1 must be zero */ -/* format on the sun3 is similar, but bits 30, 31 are set to zero and all - others are reduced by 2. --m */ - -#ifndef CONFIG_SUN3 -#define SHM_ID_SHIFT 9 -#else -#define SHM_ID_SHIFT 7 -#endif -#define _SHM_ID_BITS 7 -#define SHM_ID_MASK ((1<<_SHM_ID_BITS)-1) - -#define SHM_IDX_SHIFT (SHM_ID_SHIFT+_SHM_ID_BITS) -#define _SHM_IDX_BITS 15 -#define SHM_IDX_MASK ((1<<_SHM_IDX_BITS)-1) - -#endif /* _M68K_SHM_H */ -- 2.7.4