From: Stefan Metzmacher <metze@samba.org>
Date: Tue, 21 Oct 2025 18:43:44 +0000 (+0200)
Subject: smb: client: introduce and use smbd_mr_fill_buffer_descriptor()
X-Git-Url: http://git.ipfire.org/index.cgi?a=commitdiff_plain;h=5bd752e7749e4abcae71d95e22b75272ac767b06;p=thirdparty%2Fkernel%2Flinux.git

smb: client: introduce and use smbd_mr_fill_buffer_descriptor()

This will allow us to make struct smbdirect_mr_io private in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
---

diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index 59d7418cc4806..0aeb23aed8eb7 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -4554,9 +4554,7 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
 		req->ReadChannelInfoLength =
 			cpu_to_le16(sizeof(struct smbdirect_buffer_descriptor_v1));
 		v1 = (struct smbdirect_buffer_descriptor_v1 *) &req->Buffer[0];
-		v1->offset = cpu_to_le64(rdata->mr->mr->iova);
-		v1->token = cpu_to_le32(rdata->mr->mr->rkey);
-		v1->length = cpu_to_le32(rdata->mr->mr->length);
+		smbd_mr_fill_buffer_descriptor(rdata->mr, v1);
 
 		*total_len += sizeof(*v1) - 1;
 	}
@@ -5155,9 +5153,7 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
 		req->WriteChannelInfoLength =
 			cpu_to_le16(sizeof(struct smbdirect_buffer_descriptor_v1));
 		v1 = (struct smbdirect_buffer_descriptor_v1 *) &req->Buffer[0];
-		v1->offset = cpu_to_le64(wdata->mr->mr->iova);
-		v1->token = cpu_to_le32(wdata->mr->mr->rkey);
-		v1->length = cpu_to_le32(wdata->mr->mr->length);
+		smbd_mr_fill_buffer_descriptor(wdata->mr, v1);
 
 		rqst.rq_iov[0].iov_len += sizeof(*v1);
 
diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c
index ee3347289c873..93a91d4e0da59 100644
--- a/fs/smb/client/smbdirect.c
+++ b/fs/smb/client/smbdirect.c
@@ -1294,6 +1294,12 @@ struct smbdirect_mr_io *smbd_register_mr(struct smbd_connection *info,
 	return smbdirect_connection_register_mr_io(sc, iter, writing, need_invalidate);
 }
 
+void smbd_mr_fill_buffer_descriptor(struct smbdirect_mr_io *mr,
+				    struct smbdirect_buffer_descriptor_v1 *v1)
+{
+	smbdirect_mr_io_fill_buffer_descriptor(mr, v1);
+}
+
 /*
  * Deregister a MR after I/O is done
  * This function may wait if remote invalidation is not used
diff --git a/fs/smb/client/smbdirect.h b/fs/smb/client/smbdirect.h
index 577d37dbeb8a3..09f7dd14b2c10 100644
--- a/fs/smb/client/smbdirect.h
+++ b/fs/smb/client/smbdirect.h
@@ -60,6 +60,8 @@ int smbd_send(struct TCP_Server_Info *server,
 struct smbdirect_mr_io *smbd_register_mr(
 	struct smbd_connection *info, struct iov_iter *iter,
 	bool writing, bool need_invalidate);
+void smbd_mr_fill_buffer_descriptor(struct smbdirect_mr_io *mr,
+				    struct smbdirect_buffer_descriptor_v1 *v1);
 void smbd_deregister_mr(struct smbdirect_mr_io *mr);
 
 #else