From 85c6201a80ce4464a52c58a5f5ea8de15a557a6f Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 19 May 2010 14:06:29 +1000
Subject: [PATCH] crypto: scatterwalk - Fix scatterwalk_done() test
We are done with the scattergather entry when the walk offset goes
past sg->offset + sg->length, not when it crosses a page boundary.
There is a similarly queer test in the second half of
scatterwalk_pagedone() that probably needs some scrutiny.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
crypto/scatterwalk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index 3de89a424401..41e529af0773 100644
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -68,7 +68,7 @@ static void scatterwalk_pagedone(struct scatter_walk *walk, int out,
void scatterwalk_done(struct scatter_walk *walk, int out, int more)
{
- if (!offset_in_page(walk->offset) || !more)
+ if (!(scatterwalk_pagelen(walk) & (PAGE_SIZE - 1)) || !more)
scatterwalk_pagedone(walk, out, more);
}
EXPORT_SYMBOL_GPL(scatterwalk_done);
--
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