2 files changed, 79 insertions, 65 deletions

diff --git a/crypto/async_tx/Kconfig b/crypto/async_tx/Kconfig
index e28e276ac611..5de2ed13b35d 100644
--- a/crypto/async_tx/Kconfig
+++ b/crypto/async_tx/Kconfig
@@ -22,6 +22,20 @@ config ASYNC_RAID6_RECOV
         tristate
         select ASYNC_CORE
         select ASYNC_PQ
+        select ASYNC_XOR
+
+config ASYNC_RAID6_TEST
+        tristate "Self test for hardware accelerated raid6 recovery"
+        depends on ASYNC_RAID6_RECOV
+        select ASYNC_MEMCPY
+        ---help---
+          This is a one-shot self test that permutes through the
+          recovery of all the possible two disk failure scenarios for a
+          N-disk array.  Recovery is performed with the asynchronous
+          raid6 recovery routines, and will optionally use an offload
+          engine if one is available.
+
+          If unsure, say N.
 
 config ASYNC_TX_DISABLE_PQ_VAL_DMA
         bool
diff --git a/crypto/des_generic.c b/crypto/des_generic.c
index 249f903cc453..873818d48e86 100644
--- a/crypto/des_generic.c
+++ b/crypto/des_generic.c
@@ -614,7 +614,7 @@ static const u32 S8[64] = {
 #define T3(x) pt[2 * (x) + 2]
 #define T4(x) pt[2 * (x) + 3]
 
-#define PC2(a, b, c, d) (T4(d) | T3(c) | T2(b) | T1(a))
+#define DES_PC2(a, b, c, d) (T4(d) | T3(c) | T2(b) | T1(a))
 
 /*
  * Encryption key expansion
@@ -639,22 +639,22 @@ unsigned long des_ekey(u32 *pe, const u8 *k)
         b = k[6]; b &= 0x0e; b <<= 4; b |= k[2] & 0x1e; b = pc1[b];
         a = k[7]; a &= 0x0e; a <<= 4; a |= k[3] & 0x1e; a = pc1[a];
 
-        pe[15 * 2 + 0] = PC2(a, b, c, d); d = rs[d];
-        pe[14 * 2 + 0] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[13 * 2 + 0] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[12 * 2 + 0] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[11 * 2 + 0] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[10 * 2 + 0] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[ 9 * 2 + 0] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[ 8 * 2 + 0] = PC2(d, a, b, c); c = rs[c];
-        pe[ 7 * 2 + 0] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[ 6 * 2 + 0] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[ 5 * 2 + 0] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[ 4 * 2 + 0] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[ 3 * 2 + 0] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[ 2 * 2 + 0] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[ 1 * 2 + 0] = PC2(c, d, a, b); b = rs[b];
-        pe[ 0 * 2 + 0] = PC2(b, c, d, a);
+        pe[15 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d];
+        pe[14 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[13 * 2 + 0] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[12 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[11 * 2 + 0] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[10 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[ 9 * 2 + 0] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[ 8 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c];
+        pe[ 7 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[ 6 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[ 5 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[ 4 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[ 3 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[ 2 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[ 1 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b];
+        pe[ 0 * 2 + 0] = DES_PC2(b, c, d, a);
 
         /* Check if first half is weak */
         w  = (a ^ c) | (b ^ d) | (rs[a] ^ c) | (b ^ rs[d]);
@@ -670,22 +670,22 @@ unsigned long des_ekey(u32 *pe, const u8 *k)
         /* Check if second half is weak */
         w |= (a ^ c) | (b ^ d) | (rs[a] ^ c) | (b ^ rs[d]);
 
-        pe[15 * 2 + 1] = PC2(a, b, c, d); d = rs[d];
-        pe[14 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[13 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[12 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[11 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[10 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[ 9 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[ 8 * 2 + 1] = PC2(d, a, b, c); c = rs[c];
-        pe[ 7 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[ 6 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[ 5 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[ 4 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[ 3 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[ 2 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[ 1 * 2 + 1] = PC2(c, d, a, b); b = rs[b];
-        pe[ 0 * 2 + 1] = PC2(b, c, d, a);
+        pe[15 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d];
+        pe[14 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[13 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[12 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[11 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[10 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[ 9 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[ 8 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c];
+        pe[ 7 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[ 6 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[ 5 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[ 4 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[ 3 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[ 2 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[ 1 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b];
+        pe[ 0 * 2 + 1] = DES_PC2(b, c, d, a);
 
         /* Fixup: 2413 5768 -> 1357 2468 */
         for (d = 0; d < 16; ++d) {
@@ -722,22 +722,22 @@ static void dkey(u32 *pe, const u8 *k)
         b = k[6]; b &= 0x0e; b <<= 4; b |= k[2] & 0x1e; b = pc1[b];
         a = k[7]; a &= 0x0e; a <<= 4; a |= k[3] & 0x1e; a = pc1[a];
 
-        pe[ 0 * 2] = PC2(a, b, c, d); d = rs[d];
-        pe[ 1 * 2] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[ 2 * 2] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[ 3 * 2] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[ 4 * 2] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[ 5 * 2] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[ 6 * 2] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[ 7 * 2] = PC2(d, a, b, c); c = rs[c];
-        pe[ 8 * 2] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[ 9 * 2] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[10 * 2] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[11 * 2] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[12 * 2] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[13 * 2] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[14 * 2] = PC2(c, d, a, b); b = rs[b];
-        pe[15 * 2] = PC2(b, c, d, a);
+        pe[ 0 * 2] = DES_PC2(a, b, c, d); d = rs[d];
+        pe[ 1 * 2] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[ 2 * 2] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[ 3 * 2] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[ 4 * 2] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[ 5 * 2] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[ 6 * 2] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[ 7 * 2] = DES_PC2(d, a, b, c); c = rs[c];
+        pe[ 8 * 2] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[ 9 * 2] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[10 * 2] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[11 * 2] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[12 * 2] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[13 * 2] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[14 * 2] = DES_PC2(c, d, a, b); b = rs[b];
+        pe[15 * 2] = DES_PC2(b, c, d, a);
 
         /* Skip to next table set */
         pt += 512;
@@ -747,22 +747,22 @@ static void dkey(u32 *pe, const u8 *k)
         b = k[2]; b &= 0xe0; b >>= 4; b |= k[6] & 0xf0; b = pc1[b + 1];
         a = k[3]; a &= 0xe0; a >>= 4; a |= k[7] & 0xf0; a = pc1[a + 1];
 
-        pe[ 0 * 2 + 1] = PC2(a, b, c, d); d = rs[d];
-        pe[ 1 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[ 2 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[ 3 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[ 4 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[ 5 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
-        pe[ 6 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
-        pe[ 7 * 2 + 1] = PC2(d, a, b, c); c = rs[c];
-        pe[ 8 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[ 9 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[10 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[11 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[12 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
-        pe[13 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
-        pe[14 * 2 + 1] = PC2(c, d, a, b); b = rs[b];
-        pe[15 * 2 + 1] = PC2(b, c, d, a);
+        pe[ 0 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d];
+        pe[ 1 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[ 2 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[ 3 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[ 4 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[ 5 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
+        pe[ 6 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
+        pe[ 7 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c];
+        pe[ 8 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[ 9 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[10 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[11 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[12 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
+        pe[13 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
+        pe[14 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b];
+        pe[15 * 2 + 1] = DES_PC2(b, c, d, a);
 
         /* Fixup: 2413 5768 -> 1357 2468 */
         for (d = 0; d < 16; ++d) {