patch-2.4.27 linux-2.4.27/crypto/cipher.c

• Lines: 35
• Date: 2004-08-07 16:26:04.638346120 -0700
• Orig file: linux-2.4.26/crypto/cipher.c
• Orig date: 2004-04-14 06:05:28.000000000 -0700

diff -urN linux-2.4.26/crypto/cipher.c linux-2.4.27/crypto/cipher.c
@@ -52,8 +52,8 @@
 {
 	struct scatter_walk walk_in, walk_out;
 	const unsigned int bsize = crypto_tfm_alg_blocksize(tfm);
-	u8 tmp_src[nbytes > src->length ? bsize : 0];
-	u8 tmp_dst[nbytes > dst->length ? bsize : 0];
+	u8 tmp_src[bsize];
+	u8 tmp_dst[bsize];
 
 	if (!nbytes)
 		return 0;
@@ -68,19 +68,20 @@
 
 	for(;;) {
 		u8 *src_p, *dst_p;
+		int in_place;
 
 		scatterwalk_map(&walk_in, 0);
 		scatterwalk_map(&walk_out, 1);
 		src_p = scatterwalk_whichbuf(&walk_in, bsize, tmp_src);
 		dst_p = scatterwalk_whichbuf(&walk_out, bsize, tmp_dst);
+		in_place = scatterwalk_samebuf(&walk_in, &walk_out,
+					       src_p, dst_p);
 
 		nbytes -= bsize;
 
 		scatterwalk_copychunks(src_p, &walk_in, bsize, 0);
 
-		prfn(tfm, dst_p, src_p, crfn, enc, info,
-		     scatterwalk_samebuf(&walk_in, &walk_out,
-					 src_p, dst_p));
+		prfn(tfm, dst_p, src_p, crfn, enc, info, in_place);
 
 		scatterwalk_done(&walk_in, 0, nbytes);