1 files changed, 0 insertions, 132 deletions

diff --git a/drivers/md/raid6recov.c b/drivers/md/raid6recov.c
deleted file mode 100644
index 2609f00e0d61..000000000000
--- a/drivers/md/raid6recov.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/* -*- linux-c -*- ------------------------------------------------------- *
- *
- *   Copyright 2002 H. Peter Anvin - All Rights Reserved
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
- *   Boston MA 02111-1307, USA; either version 2 of the License, or
- *   (at your option) any later version; incorporated herein by reference.
- *
- * ----------------------------------------------------------------------- */
-
-/*
- * raid6recov.c
- *
- * RAID-6 data recovery in dual failure mode.  In single failure mode,
- * use the RAID-5 algorithm (or, in the case of Q failure, just reconstruct
- * the syndrome.)
- */
-
-#include <linux/raid/pq.h>
-
-/* Recover two failed data blocks. */
-void raid6_2data_recov(int disks, size_t bytes, int faila, int failb,
-                       void **ptrs)
-{
-        u8 *p, *q, *dp, *dq;
-        u8 px, qx, db;
-        const u8 *pbmul;        /* P multiplier table for B data */
-        const u8 *qmul;         /* Q multiplier table (for both) */
-
-        p = (u8 *)ptrs[disks-2];
-        q = (u8 *)ptrs[disks-1];
-
-        /* Compute syndrome with zero for the missing data pages
-           Use the dead data pages as temporary storage for
-           delta p and delta q */
-        dp = (u8 *)ptrs[faila];
-        ptrs[faila] = (void *)raid6_empty_zero_page;
-        ptrs[disks-2] = dp;
-        dq = (u8 *)ptrs[failb];
-        ptrs[failb] = (void *)raid6_empty_zero_page;
-        ptrs[disks-1] = dq;
-
-        raid6_call.gen_syndrome(disks, bytes, ptrs);
-
-        /* Restore pointer table */
-        ptrs[faila]   = dp;
-        ptrs[failb]   = dq;
-        ptrs[disks-2] = p;
-        ptrs[disks-1] = q;
-
-        /* Now, pick the proper data tables */
-        pbmul = raid6_gfmul[raid6_gfexi[failb-faila]];
-        qmul  = raid6_gfmul[raid6_gfinv[raid6_gfexp[faila]^raid6_gfexp[failb]]];
-
-        /* Now do it... */
-        while ( bytes-- ) {
-                px    = *p ^ *dp;
-                qx    = qmul[*q ^ *dq];
-                *dq++ = db = pbmul[px] ^ qx; /* Reconstructed B */
-                *dp++ = db ^ px; /* Reconstructed A */
-                p++; q++;
-        }
-}
-EXPORT_SYMBOL_GPL(raid6_2data_recov);
-
-/* Recover failure of one data block plus the P block */
-void raid6_datap_recov(int disks, size_t bytes, int faila, void **ptrs)
-{
-        u8 *p, *q, *dq;
-        const u8 *qmul;         /* Q multiplier table */
-
-        p = (u8 *)ptrs[disks-2];
-        q = (u8 *)ptrs[disks-1];
-
-        /* Compute syndrome with zero for the missing data page
-           Use the dead data page as temporary storage for delta q */
-        dq = (u8 *)ptrs[faila];
-        ptrs[faila] = (void *)raid6_empty_zero_page;
-        ptrs[disks-1] = dq;
-
-        raid6_call.gen_syndrome(disks, bytes, ptrs);
-
-        /* Restore pointer table */
-        ptrs[faila]   = dq;
-        ptrs[disks-1] = q;
-
-        /* Now, pick the proper data tables */
-        qmul  = raid6_gfmul[raid6_gfinv[raid6_gfexp[faila]]];
-
-        /* Now do it... */
-        while ( bytes-- ) {
-                *p++ ^= *dq = qmul[*q ^ *dq];
-                q++; dq++;
-        }
-}
-EXPORT_SYMBOL_GPL(raid6_datap_recov);
-
-#ifndef __KERNEL__
-/* Testing only */
-
-/* Recover two failed blocks. */
-void raid6_dual_recov(int disks, size_t bytes, int faila, int failb, void **ptrs)
-{
-        if ( faila > failb ) {
-                int tmp = faila;
-                faila = failb;
-                failb = tmp;
-        }
-
-        if ( failb == disks-1 ) {
-                if ( faila == disks-2 ) {
-                        /* P+Q failure.  Just rebuild the syndrome. */
-                        raid6_call.gen_syndrome(disks, bytes, ptrs);
-                } else {
-                        /* data+Q failure.  Reconstruct data from P,
-                           then rebuild syndrome. */
-                        /* NOT IMPLEMENTED - equivalent to RAID-5 */
-                }
-        } else {
-                if ( failb == disks-2 ) {
-                        /* data+P failure. */
-                        raid6_datap_recov(disks, bytes, faila, ptrs);
-                } else {
-                        /* data+data failure. */
-                        raid6_2data_recov(disks, bytes, faila, failb, ptrs);
-                }
-        }
-}
-
-#endif