struct crypto_xcbc_ctx *ctx = crypto_hash_ctx_aligned(parent);
struct crypto_cipher *tfm = ctx->child;
int bs = crypto_hash_blocksize(parent);
- unsigned int i = 0;
- do {
-
- struct page *pg = sg_page(&sg[i]);
- unsigned int offset = sg[i].offset;
- unsigned int slen = sg[i].length;
+ for (;;) {
+ struct page *pg = sg_page(sg);
+ unsigned int offset = sg->offset;
+ unsigned int slen = sg->length;
if (unlikely(slen > nbytes))
slen = nbytes;
offset = 0;
pg++;
}
- i++;
- } while (nbytes>0);
+
+ if (!nbytes)
+ break;
+ sg = scatterwalk_sg_next(sg);
+ }
return 0;
}