crypto: af_alg: Indent the loop in af_alg_sendmsg()

Put the loop in af_alg_sendmsg() into an if-statement to indent it to make
the next patch easier to review as that will add another branch to handle
MSG_SPLICE_PAGES to the if-statement.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Herbert Xu <herbert@gondor.apana.org.au>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: Jens Axboe <axboe@kernel.dk>
cc: Matthew Wilcox <willy@infradead.org>
cc: linux-crypto@vger.kernel.org
cc: netdev@vger.kernel.org
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

crypto/af_alg.c

@@ -1030,6 +1030,7 @@ int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size,
 		if (sgl->cur)
 			sg_unmark_end(sg + sgl->cur - 1);
 
+		if (1 /* TODO check MSG_SPLICE_PAGES */) {
 			do {
 				struct page *pg;
 				unsigned int i = sgl->cur;
@@ -1044,7 +1045,8 @@ int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size,
 
 				sg_assign_page(sg + i, pg);
 
-			err = memcpy_from_msg(page_address(sg_page(sg + i)),
+				err = memcpy_from_msg(
+					page_address(sg_page(sg + i)),
 					msg, plen);
 				if (err) {
 					__free_page(sg_page(sg + i));
@@ -1059,6 +1061,7 @@ int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size,
 				size -= plen;
 				sgl->cur++;
 			} while (len && sgl->cur < MAX_SGL_ENTS);
+		}
 
 		if (!size)
 			sg_mark_end(sg + sgl->cur - 1);