Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=54212cf4054e7cf44f3ca97c3c5fb942dbfe7013
Commit: 54212cf4054e7cf44f3ca97c3c5fb942dbfe7013
Parent: 91c4313206e4409871e2ddd13c29508afe1c8834
Author: Oliver Pinter <[EMAIL PROTECTED]>
AuthorDate: Wed Feb 6 01:39:47 2008 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Wed Feb 6 10:41:18 2008 -0800
coding style cleanups for drivers/md/mktables.c
Signed-off-by: Oliver Pinter <[EMAIL PROTECTED]>
Cc: Neil Brown <[EMAIL PROTECTED]>
Cc: "H. Peter Anvin" <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/md/mktables.c | 254 +++++++++++++++++++++++++------------------------
1 files changed, 129 insertions(+), 125 deletions(-)
diff --git a/drivers/md/mktables.c b/drivers/md/mktables.c
dissimilarity index 65%
index adef299..339afd0 100644
--- a/drivers/md/mktables.c
+++ b/drivers/md/mktables.c
@@ -1,125 +1,129 @@
-#ident "$Id: mktables.c,v 1.2 2002/12/12 22:41:27 hpa Exp $"
-/* ----------------------------------------------------------------------- *
- *
- * 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,
- * Bostom MA 02111-1307, USA; either version 2 of the License, or
- * (at your option) any later version; incorporated herein by reference.
- *
- * ----------------------------------------------------------------------- */
-
-/*
- * mktables.c
- *
- * Make RAID-6 tables. This is a host user space program to be run at
- * compile time.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include <stdlib.h>
-#include <time.h>
-
-static uint8_t gfmul(uint8_t a, uint8_t b)
-{
- uint8_t v = 0;
-
- while ( b ) {
- if ( b & 1 ) v ^= a;
- a = (a << 1) ^ (a & 0x80 ? 0x1d : 0);
- b >>= 1;
- }
- return v;
-}
-
-static uint8_t gfpow(uint8_t a, int b)
-{
- uint8_t v = 1;
-
- b %= 255;
- if ( b < 0 )
- b += 255;
-
- while ( b ) {
- if ( b & 1 ) v = gfmul(v,a);
- a = gfmul(a,a);
- b >>= 1;
- }
- return v;
-}
-
-int main(int argc, char *argv[])
-{
- int i, j, k;
- uint8_t v;
- uint8_t exptbl[256], invtbl[256];
-
- printf("#include \"raid6.h\"\n");
-
- /* Compute multiplication table */
- printf("\nconst u8 __attribute__((aligned(256)))\n"
- "raid6_gfmul[256][256] =\n"
- "{\n");
- for ( i = 0 ; i < 256 ; i++ ) {
- printf("\t{\n");
- for ( j = 0 ; j < 256 ; j += 8 ) {
- printf("\t\t");
- for ( k = 0 ; k < 8 ; k++ ) {
- printf("0x%02x, ", gfmul(i,j+k));
- }
- printf("\n");
- }
- printf("\t},\n");
- }
- printf("};\n");
-
- /* Compute power-of-2 table (exponent) */
- v = 1;
- printf("\nconst u8 __attribute__((aligned(256)))\n"
- "raid6_gfexp[256] =\n"
- "{\n");
- for ( i = 0 ; i < 256 ; i += 8 ) {
- printf("\t");
- for ( j = 0 ; j < 8 ; j++ ) {
- exptbl[i+j] = v;
- printf("0x%02x, ", v);
- v = gfmul(v,2);
- if ( v == 1 ) v = 0; /* For entry 255, not a real entry */
- }
- printf("\n");
- }
- printf("};\n");
-
- /* Compute inverse table x^-1 == x^254 */
- printf("\nconst u8 __attribute__((aligned(256)))\n"
- "raid6_gfinv[256] =\n"
- "{\n");
- for ( i = 0 ; i < 256 ; i += 8 ) {
- printf("\t");
- for ( j = 0 ; j < 8 ; j++ ) {
- invtbl[i+j] = v = gfpow(i+j,254);
- printf("0x%02x, ", v);
- }
- printf("\n");
- }
- printf("};\n");
-
- /* Compute inv(2^x + 1) (exponent-xor-inverse) table */
- printf("\nconst u8 __attribute__((aligned(256)))\n"
- "raid6_gfexi[256] =\n"
- "{\n");
- for ( i = 0 ; i < 256 ; i += 8 ) {
- printf("\t");
- for ( j = 0 ; j < 8 ; j++ ) {
- printf("0x%02x, ", invtbl[exptbl[i+j]^1]);
- }
- printf("\n");
- }
- printf("};\n\n");
-
- return 0;
-}
+#ident "$Id: mktables.c,v 1.2 2002/12/12 22:41:27 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *
+ * 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,
+ * Bostom MA 02111-1307, USA; either version 2 of the License, or
+ * (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * mktables.c
+ *
+ * Make RAID-6 tables. This is a host user space program to be run at
+ * compile time.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include <stdlib.h>
+#include <time.h>
+
+static uint8_t gfmul(uint8_t a, uint8_t b)
+{
+ uint8_t v = 0;
+
+ while (b) {
+ if (b & 1)
+ v ^= a;
+ a = (a << 1) ^ (a & 0x80 ? 0x1d : 0);
+ b >>= 1;
+ }
+
+ return v;
+}
+
+static uint8_t gfpow(uint8_t a, int b)
+{
+ uint8_t v = 1;
+
+ b %= 255;
+ if (b < 0)
+ b += 255;
+
+ while (b) {
+ if (b & 1)
+ v = gfmul(v, a);
+ a = gfmul(a, a);
+ b >>= 1;
+ }
+
+ return v;
+}
+
+int main(int argc, char *argv[])
+{
+ int i, j, k;
+ uint8_t v;
+ uint8_t exptbl[256], invtbl[256];
+
+ printf("#include \"raid6.h\"\n");
+
+ /* Compute multiplication table */
+ printf("\nconst u8 __attribute__((aligned(256)))\n"
+ "raid6_gfmul[256][256] =\n"
+ "{\n");
+ for (i = 0; i < 256; i++) {
+ printf("\t{\n");
+ for (j = 0; j < 256; j += 8) {
+ printf("\t\t");
+ for (k = 0; k < 8; k++)
+ printf("0x%02x, ", gfmul(i, j+k));
+ printf("\n");
+ }
+ printf("\t},\n");
+ }
+ printf("};\n");
+
+ /* Compute power-of-2 table (exponent) */
+ v = 1;
+ printf("\nconst u8 __attribute__((aligned(256)))\n"
+ "raid6_gfexp[256] =\n"
+ "{\n");
+ for (i = 0; i < 256; i += 8) {
+ printf("\t");
+ for (j = 0; j < 8; j++) {
+ exptbl[i+j] = v;
+ printf("0x%02x, ", v);
+ v = gfmul(v, 2);
+ if (v == 1)
+ v = 0; /* For entry 255, not a real entry */
+ }
+ printf("\n");
+ }
+ printf("};\n");
+
+ /* Compute inverse table x^-1 == x^254 */
+ printf("\nconst u8 __attribute__((aligned(256)))\n"
+ "raid6_gfinv[256] =\n"
+ "{\n");
+ for (i = 0; i < 256; i += 8) {
+ printf("\t");
+ for (j = 0; j < 8; j++) {
+ v = gfpow(i+j, 254);
+ invtbl[i+j] = v;
+ printf("0x%02x, ", v);
+ }
+ printf("\n");
+ }
+ printf("};\n");
+
+ /* Compute inv(2^x + 1) (exponent-xor-inverse) table */
+ printf("\nconst u8 __attribute__((aligned(256)))\n"
+ "raid6_gfexi[256] =\n"
+ "{\n");
+ for (i = 0; i < 256; i += 8) {
+ printf("\t");
+ for (j = 0; j < 8; j++)
+ printf("0x%02x, ", invtbl[exptbl[i+j]^1]);
+ printf("\n");
+ }
+ printf("};\n\n");
+
+ return 0;
+}
-
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