Cleans up various minor warnings that sparse endian checking showed in
the recent SMB3 RDMA patch series
--
Thanks,
Steve
From 6964f19660775953392cb01b56d7465ede1acd5e Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@xxxxxxxxx>
Date: Wed, 24 Jan 2018 23:07:41 -0600
Subject: [PATCH] [SMB3] Cleanup some minor endian issues in smb3 rdma
Minor cleanup of some sparse warnings (including a few misc
endian fixes for the new smb3 rdma code)
Signed-off-by: Steve French <smfrench@xxxxxxxxx>
---
fs/cifs/smb2pdu.c | 22 +++++++++++-----------
fs/cifs/smb2pdu.h | 14 +++++++-------
fs/cifs/smbdirect.c | 5 +++--
3 files changed, 21 insertions(+), 20 deletions(-)
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 17b7f3aed195..63778ac22fd9 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2463,13 +2463,13 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
if (need_invalidate)
req->Channel = SMB2_CHANNEL_RDMA_V1;
req->ReadChannelInfoOffset =
- offsetof(struct smb2_read_plain_req, Buffer);
+ cpu_to_le16(offsetof(struct smb2_read_plain_req, Buffer));
req->ReadChannelInfoLength =
- sizeof(struct smbd_buffer_descriptor_v1);
+ cpu_to_le16(sizeof(struct smbd_buffer_descriptor_v1));
v1 = (struct smbd_buffer_descriptor_v1 *) &req->Buffer[0];
- v1->offset = rdata->mr->mr->iova;
- v1->token = rdata->mr->mr->rkey;
- v1->length = rdata->mr->mr->length;
+ 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);
*total_len += sizeof(*v1) - 1;
}
@@ -2840,18 +2840,18 @@ smb2_async_writev(struct cifs_writedata *wdata,
req->Length = 0;
req->DataOffset = 0;
req->RemainingBytes =
- (wdata->nr_pages-1)*PAGE_SIZE + wdata->tailsz;
+ cpu_to_le32((wdata->nr_pages-1)*PAGE_SIZE + wdata->tailsz);
req->Channel = SMB2_CHANNEL_RDMA_V1_INVALIDATE;
if (need_invalidate)
req->Channel = SMB2_CHANNEL_RDMA_V1;
req->WriteChannelInfoOffset =
- offsetof(struct smb2_write_req, Buffer);
+ cpu_to_le16(offsetof(struct smb2_write_req, Buffer));
req->WriteChannelInfoLength =
- sizeof(struct smbd_buffer_descriptor_v1);
+ cpu_to_le16(sizeof(struct smbd_buffer_descriptor_v1));
v1 = (struct smbd_buffer_descriptor_v1 *) &req->Buffer[0];
- v1->offset = wdata->mr->mr->iova;
- v1->token = wdata->mr->mr->rkey;
- v1->length = wdata->mr->mr->length;
+ 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);
}
#endif
/* 4 for rfc1002 length field and 1 for Buffer */
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 19d34881815f..6eb9f9691ed4 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -830,9 +830,9 @@ struct smb2_flush_rsp {
#define SMB2_READFLAG_READ_UNBUFFERED 0x01
/* Channel field for read and write: exactly one of following flags can be set*/
-#define SMB2_CHANNEL_NONE 0x00000000
-#define SMB2_CHANNEL_RDMA_V1 0x00000001 /* SMB3 or later */
-#define SMB2_CHANNEL_RDMA_V1_INVALIDATE 0x00000002 /* SMB3.02 or later */
+#define SMB2_CHANNEL_NONE cpu_to_le32(0x00000000)
+#define SMB2_CHANNEL_RDMA_V1 cpu_to_le32(0x00000001) /* SMB3 or later */
+#define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002) /* >= SMB3.02 */
/* SMB2 read request without RFC1001 length at the beginning */
struct smb2_read_plain_req {
@@ -847,8 +847,8 @@ struct smb2_read_plain_req {
__le32 MinimumCount;
__le32 Channel; /* MBZ except for SMB3 or later */
__le32 RemainingBytes;
- __le16 ReadChannelInfoOffset; /* Reserved MBZ */
- __le16 ReadChannelInfoLength; /* Reserved MBZ */
+ __le16 ReadChannelInfoOffset;
+ __le16 ReadChannelInfoLength;
__u8 Buffer[1];
} __packed;
@@ -877,8 +877,8 @@ struct smb2_write_req {
__u64 VolatileFileId; /* opaque endianness */
__le32 Channel; /* Reserved MBZ */
__le32 RemainingBytes;
- __le16 WriteChannelInfoOffset; /* Reserved MBZ */
- __le16 WriteChannelInfoLength; /* Reserved MBZ */
+ __le16 WriteChannelInfoOffset;
+ __le16 WriteChannelInfoLength;
__le32 Flags;
__u8 Buffer[1];
} __packed;
diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index f9234ed83a60..5130492847eb 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -1855,7 +1855,8 @@ struct smbd_connection *smbd_get_connection(
* consumed. But this will require more changes to upper layer code, and also
* need to consider packet boundaries while they still being reassembled.
*/
-int smbd_recv_buf(struct smbd_connection *info, char *buf, unsigned int size)
+static int smbd_recv_buf(struct smbd_connection *info, char *buf,
+ unsigned int size)
{
struct smbd_response *response;
struct smbd_data_transfer *data_transfer;
@@ -1992,7 +1993,7 @@ int smbd_recv_buf(struct smbd_connection *info, char *buf, unsigned int size)
* to_read: the length of data to read
* return value: actual data read
*/
-int smbd_recv_page(struct smbd_connection *info,
+static int smbd_recv_page(struct smbd_connection *info,
struct page *page, unsigned int to_read)
{
int ret;
--
2.14.3
