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[PATCH] Use sg_set_buf/sg_init_one where applicable

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This patch uses sg_set_buf/sg_init_one in some places where it was
duplicated.

Signed-off-by: David Hardeman <david@2gen.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
David Hardeman
2005-09-17 17:55:31 +10:00
committed by Herbert Xu
parent d32311fed7
commit 378f058cc4
10 changed files with 44 additions and 105 deletions
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23
net/sunrpc/auth_gss/gss_krb5_crypto.c
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@@ -37,7 +37,7 @@
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <asm/scatterlist.h>
#include <linux/scatterlist.h>
#include <linux/crypto.h>
#include <linux/highmem.h>
#include <linux/pagemap.h>
@@ -75,9 +75,7 @@ krb5_encrypt(
memcpy(local_iv, iv, crypto_tfm_alg_ivsize(tfm));
memcpy(out, in, length);
sg[0].page = virt_to_page(out);
sg[0].offset = offset_in_page(out);
sg[0].length = length;
sg_set_buf(&sg[0], out, length);
ret = crypto_cipher_encrypt_iv(tfm, sg, sg, length, local_iv);
@@ -117,9 +115,7 @@ krb5_decrypt(
memcpy(local_iv,iv, crypto_tfm_alg_ivsize(tfm));
memcpy(out, in, length);
sg[0].page = virt_to_page(out);
sg[0].offset = offset_in_page(out);
sg[0].length = length;
sg_set_buf(&sg[0], out, length);
ret = crypto_cipher_decrypt_iv(tfm, sg, sg, length, local_iv);
@@ -132,13 +128,6 @@ out:
EXPORT_SYMBOL(krb5_decrypt);
static void
buf_to_sg(struct scatterlist *sg, char *ptr, int len) {
sg->page = virt_to_page(ptr);
sg->offset = offset_in_page(ptr);
sg->length = len;
}
static int
process_xdr_buf(struct xdr_buf *buf, int offset, int len,
int (*actor)(struct scatterlist *, void *), void *data)
@@ -152,7 +141,7 @@ process_xdr_buf(struct xdr_buf *buf, int offset, int len,
thislen = buf->head[0].iov_len - offset;
if (thislen > len)
thislen = len;
buf_to_sg(sg, buf->head[0].iov_base + offset, thislen);
sg_set_buf(sg, buf->head[0].iov_base + offset, thislen);
ret = actor(sg, data);
if (ret)
goto out;
@@ -195,7 +184,7 @@ process_xdr_buf(struct xdr_buf *buf, int offset, int len,
thislen = buf->tail[0].iov_len - offset;
if (thislen > len)
thislen = len;
buf_to_sg(sg, buf->tail[0].iov_base + offset, thislen);
sg_set_buf(sg, buf->tail[0].iov_base + offset, thislen);
ret = actor(sg, data);
len -= thislen;
}
@@ -241,7 +230,7 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
goto out;
crypto_digest_init(tfm);
buf_to_sg(sg, header, hdrlen);
sg_set_buf(sg, header, hdrlen);
crypto_digest_update(tfm, sg, 1);
process_xdr_buf(body, body_offset, body->len - body_offset,
checksummer, tfm);