---

yaml --- r: 79766 b: refs/heads/master c: f2f5817 h: refs/heads/master v: v3
git-mirror · Jan 30, 2008 · 553ddf7 · 553ddf7
1 parent 2d24837
commit 553ddf7
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Showing 2 changed files with 7 additions and 27 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3ebc51d7c95425c3b4667fa042576fb1c6e2ea16
+refs/heads/master: f2f58178f497ca56501d44d79982621e19c5007f
diff --git a/trunk/arch/x86/kernel/ioport_32.c b/trunk/arch/x86/kernel/ioport_32.c
@@ -16,36 +16,16 @@
 #include <linux/syscalls.h>
 
 /* Set EXTENT bits starting at BASE in BITMAP to value TURN_ON. */
-static void set_bitmap(unsigned long *bitmap, unsigned int base, unsigned int extent, int new_value)
+static void set_bitmap(unsigned long *bitmap, unsigned int base,
+		       unsigned int extent, int new_value)
 {
-	unsigned long mask;
-	unsigned long *bitmap_base = bitmap + (base / BITS_PER_LONG);
-	unsigned int low_index = base & (BITS_PER_LONG-1);
-	int length = low_index + extent;
-
-	if (low_index != 0) {
-		mask = (~0UL << low_index);
-		if (length < BITS_PER_LONG)
-			mask &= ~(~0UL << length);
-		if (new_value)
-			*bitmap_base++ |= mask;
-		else
-			*bitmap_base++ &= ~mask;
-		length -= BITS_PER_LONG;
-	}
-
-	mask = (new_value ? ~0UL : 0UL);
-	while (length >= BITS_PER_LONG) {
-		*bitmap_base++ = mask;
-		length -= BITS_PER_LONG;
-	}
+	unsigned int i;
 
-	if (length > 0) {
-		mask = ~(~0UL << length);
+	for (i = base; i < base + extent; i++) {
 		if (new_value)
-			*bitmap_base++ |= mask;
+			__set_bit(i, bitmap);
 		else
-			*bitmap_base++ &= ~mask;
+			__clear_bit(i, bitmap);
 	}
 }