---

yaml --- r: 224445 b: refs/heads/master c: c26aed4 h: refs/heads/master i: 224443: d3cf53a v: v3
git-mirror · Nov 19, 2010 · a2ed29e · a2ed29e
1 parent 57fa14c
commit a2ed29e
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8c1592d68bc89248bfd0ee287648f41c1370d826
+refs/heads/master: c26aed40f4fd18f86bcc6aba557cab700b129b73
diff --git a/trunk/net/core/filter.c b/trunk/net/core/filter.c
@@ -37,6 +37,7 @@
 #include <asm/uaccess.h>
 #include <asm/unaligned.h>
 #include <linux/filter.h>
+#include <linux/reciprocal_div.h>
 
 enum {
 	BPF_S_RET_K = 1,
@@ -205,7 +206,7 @@ unsigned int sk_run_filter(struct sk_buff *skb, const struct sock_filter *fentry
 			A /= X;
 			continue;
 		case BPF_S_ALU_DIV_K:
-			A /= K;
+			A = reciprocal_divide(A, K);
 			continue;
 		case BPF_S_ALU_AND_X:
 			A &= X;
@@ -506,6 +507,7 @@ int sk_chk_filter(struct sock_filter *filter, int flen)
 			/* check for division by zero */
 			if (ftest->k == 0)
 				return -EINVAL;
+			ftest->k = reciprocal_value(ftest->k);
 			break;
 		case BPF_S_LD_MEM:
 		case BPF_S_LDX_MEM: