patch-2.4.19 linux-2.4.19/include/asm-mips/checksum.h

• Lines: 102
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/include/asm-mips/checksum.h
• Orig date: Mon Jul 2 13:56:40 2001

diff -urN linux-2.4.18/include/asm-mips/checksum.h linux-2.4.19/include/asm-mips/checksum.h
@@ -41,7 +41,7 @@
  * Copy and checksum to user
  */
 #define HAVE_CSUM_COPY_USER
-extern inline unsigned int csum_and_copy_to_user (const char *src, char *dst,
+static inline unsigned int csum_and_copy_to_user (const char *src, char *dst,
 						  int len, int sum,
 						  int *err_ptr)
 {
@@ -80,10 +80,9 @@
 	"xori\t%0,0xffff\n\t"
 	".set\tat"
 	: "=r" (sum)
-	: "0" (sum)
-	: "$1");
+	: "0" (sum));
 
- 	return sum;
+	return sum;
 }
  
 /*
@@ -133,8 +132,7 @@
 	"2:\t.set\tat\n\t"
 	".set\treorder"
 	: "=&r" (sum), "=&r" (iph), "=&r" (ihl), "=&r" (dummy)
-	: "1" (iph), "2" (ihl)
-	: "$1");
+	: "1" (iph), "2" (ihl));
 
 	return csum_fold(sum);
 }
@@ -170,8 +168,7 @@
 #else
 	  "r" (((proto)<<16)+len),
 #endif
-	  "r" (sum)
-	: "$1");
+	  "r" (sum));
 
 	return sum;
 }
@@ -217,48 +214,49 @@
 	"lw\t%1, 0(%2)\t\t\t# four words source address\n\t"
 	"addu\t%0, $1\n\t"
 	"addu\t%0, %1\n\t"
-	"sltu\t$1, %0, $1\n\t"
+	"sltu\t$1, %0, %1\n\t"
 
 	"lw\t%1, 4(%2)\n\t"
 	"addu\t%0, $1\n\t"
 	"addu\t%0, %1\n\t"
-	"sltu\t$1, %0, $1\n\t"
+	"sltu\t$1, %0, %1\n\t"
 
 	"lw\t%1, 8(%2)\n\t"
 	"addu\t%0, $1\n\t"
 	"addu\t%0, %1\n\t"
-	"sltu\t$1, %0, $1\n\t"
+	"sltu\t$1, %0, %1\n\t"
 
 	"lw\t%1, 12(%2)\n\t"
 	"addu\t%0, $1\n\t"
 	"addu\t%0, %1\n\t"
-	"sltu\t$1, %0, $1\n\t"
+	"sltu\t$1, %0, %1\n\t"
 
 	"lw\t%1, 0(%3)\n\t"
 	"addu\t%0, $1\n\t"
 	"addu\t%0, %1\n\t"
-	"sltu\t$1, %0, $1\n\t"
+	"sltu\t$1, %0, %1\n\t"
 
 	"lw\t%1, 4(%3)\n\t"
 	"addu\t%0, $1\n\t"
 	"addu\t%0, %1\n\t"
-	"sltu\t$1, %0, $1\n\t"
+	"sltu\t$1, %0, %1\n\t"
 
 	"lw\t%1, 8(%3)\n\t"
 	"addu\t%0, $1\n\t"
 	"addu\t%0, %1\n\t"
-	"sltu\t$1, %0, $1\n\t"
+	"sltu\t$1, %0, %1\n\t"
 
 	"lw\t%1, 12(%3)\n\t"
 	"addu\t%0, $1\n\t"
 	"addu\t%0, %1\n\t"
-	"sltu\t$1, %0, $1\n\t"
+	"sltu\t$1, %0, %1\n\t"
+
+	"addu\t%0, $1\t\t\t# Add final carry\n\t"
 	".set\tnoat\n\t"
 	".set\tnoreorder"
 	: "=r" (sum), "=r" (proto)
 	: "r" (saddr), "r" (daddr),
-	  "0" (htonl(len)), "1" (htonl(proto)), "r" (sum)
-	: "$1");
+	  "0" (htonl(len)), "1" (htonl(proto)), "r" (sum));
 
 	return csum_fold(sum);
 }