SG: Change sg_set_page() to take length and offset argument

Most drivers need to set length and offset as well, so may as well fold
those three lines into one.

Add sg_assign_page() for those two locations that only needed to set
the page, where the offset/length is set outside of the function context.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 2 insertions, 7 deletions

diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c
index 74d017520a23..4cce3534e408 100644
--- a/net/ieee80211/ieee80211_crypt_tkip.c
+++ b/net/ieee80211/ieee80211_crypt_tkip.c
@@ -537,13 +537,8 @@ static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr,
 		return -1;
 	}
 	sg_init_table(sg, 2);
-	sg_set_page(&sg[0], virt_to_page(hdr));
-	sg[0].offset = offset_in_page(hdr);
-	sg[0].length = 16;
-
-	sg_set_page(&sg[1], virt_to_page(data));
-	sg[1].offset = offset_in_page(data);
-	sg[1].length = data_len;
+	sg_set_buf(&sg[0], hdr, 16);
+	sg_set_buf(&sg[1], data, data_len);
 
 	if (crypto_hash_setkey(tfm_michael, key, 8))
 		return -1;