Reduce code duplication by calculating req->CreateContextsLength in
one place.
This is the last reference to "req" in the add_*_context functions,
remove that parameter.
Signed-off-by: Volker Lendecke <vl@xxxxxxxxx>
---
fs/cifs/smb2pdu.c | 21 ++++-----------------
1 file changed, 4 insertions(+), 17 deletions(-)
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 9160f3a54805..bd511286536b 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -801,7 +801,6 @@ create_posix_buf(umode_t mode)
static int
add_posix_context(struct kvec *iov, unsigned int *num_iovec, umode_t mode)
{
- struct smb2_create_req *req = iov[0].iov_base;
unsigned int num = *num_iovec;
iov[num].iov_base = create_posix_buf(mode);
@@ -810,7 +809,6 @@ add_posix_context(struct kvec *iov, unsigned int *num_iovec, umode_t mode)
if (iov[num].iov_base == NULL)
return -ENOMEM;
iov[num].iov_len = sizeof(struct create_posix);
- le32_add_cpu(&req->CreateContextsLength, sizeof(struct create_posix));
*num_iovec = num + 1;
return 0;
}
@@ -2159,8 +2157,6 @@ add_lease_context(struct TCP_Server_Info *server, struct kvec *iov,
return -ENOMEM;
iov[num].iov_len = server->vals->create_lease_size;
req->RequestedOplockLevel = SMB2_OPLOCK_LEVEL_LEASE;
- le32_add_cpu(&req->CreateContextsLength,
- server->vals->create_lease_size);
*num_iovec = num + 1;
return 0;
}
@@ -2239,14 +2235,12 @@ static int
add_durable_v2_context(struct kvec *iov, unsigned int *num_iovec,
struct cifs_open_parms *oparms)
{
- struct smb2_create_req *req = iov[0].iov_base;
unsigned int num = *num_iovec;
iov[num].iov_base = create_durable_v2_buf(oparms);
if (iov[num].iov_base == NULL)
return -ENOMEM;
iov[num].iov_len = sizeof(struct create_durable_v2);
- le32_add_cpu(&req->CreateContextsLength, sizeof(struct create_durable_v2));
*num_iovec = num + 1;
return 0;
}
@@ -2255,7 +2249,6 @@ static int
add_durable_reconnect_v2_context(struct kvec *iov, unsigned int *num_iovec,
struct cifs_open_parms *oparms)
{
- struct smb2_create_req *req = iov[0].iov_base;
unsigned int num = *num_iovec;
/* indicate that we don't need to relock the file */
@@ -2265,8 +2258,6 @@ add_durable_reconnect_v2_context(struct kvec *iov, unsigned int *num_iovec,
if (iov[num].iov_base == NULL)
return -ENOMEM;
iov[num].iov_len = sizeof(struct create_durable_handle_reconnect_v2);
- le32_add_cpu(&req->CreateContextsLength,
- sizeof(struct create_durable_handle_reconnect_v2));
*num_iovec = num + 1;
return 0;
}
@@ -2275,7 +2266,6 @@ static int
add_durable_context(struct kvec *iov, unsigned int *num_iovec,
struct cifs_open_parms *oparms, bool use_persistent)
{
- struct smb2_create_req *req = iov[0].iov_base;
unsigned int num = *num_iovec;
if (use_persistent) {
@@ -2295,7 +2285,6 @@ add_durable_context(struct kvec *iov, unsigned int *num_iovec,
if (iov[num].iov_base == NULL)
return -ENOMEM;
iov[num].iov_len = sizeof(struct create_durable);
- le32_add_cpu(&req->CreateContextsLength, sizeof(struct create_durable));
*num_iovec = num + 1;
return 0;
}
@@ -2329,14 +2318,12 @@ create_twarp_buf(__u64 timewarp)
static int
add_twarp_context(struct kvec *iov, unsigned int *num_iovec, __u64 timewarp)
{
- struct smb2_create_req *req = iov[0].iov_base;
unsigned int num = *num_iovec;
iov[num].iov_base = create_twarp_buf(timewarp);
if (iov[num].iov_base == NULL)
return -ENOMEM;
iov[num].iov_len = sizeof(struct crt_twarp_ctxt);
- le32_add_cpu(&req->CreateContextsLength, sizeof(struct crt_twarp_ctxt));
*num_iovec = num + 1;
return 0;
}
@@ -2459,7 +2446,6 @@ create_sd_buf(umode_t mode, bool set_owner, unsigned int *len)
static int
add_sd_context(struct kvec *iov, unsigned int *num_iovec, umode_t mode, bool set_owner)
{
- struct smb2_create_req *req = iov[0].iov_base;
unsigned int num = *num_iovec;
unsigned int len = 0;
@@ -2467,7 +2453,6 @@ add_sd_context(struct kvec *iov, unsigned int *num_iovec, umode_t mode, bool set
if (iov[num].iov_base == NULL)
return -ENOMEM;
iov[num].iov_len = len;
- le32_add_cpu(&req->CreateContextsLength, len);
*num_iovec = num + 1;
return 0;
}
@@ -2498,14 +2483,12 @@ create_query_id_buf(void)
static int
add_query_id_context(struct kvec *iov, unsigned int *num_iovec)
{
- struct smb2_create_req *req = iov[0].iov_base;
unsigned int num = *num_iovec;
iov[num].iov_base = create_query_id_buf();
if (iov[num].iov_base == NULL)
return -ENOMEM;
iov[num].iov_len = sizeof(struct crt_query_id_ctxt);
- le32_add_cpu(&req->CreateContextsLength, sizeof(struct crt_query_id_ctxt));
*num_iovec = num + 1;
return 0;
}
@@ -2869,6 +2852,7 @@ SMB2_open_init(struct cifs_tcon *tcon, struct TCP_Server_Info *server,
req->CreateContextsOffset = cpu_to_le32(
sizeof(struct smb2_create_req) +
iov[1].iov_len);
+ req->CreateContextsLength = 0;
for (unsigned int i = 2; i < (n_iov-1); i++) {
struct kvec *v = &iov[i];
@@ -2877,7 +2861,10 @@ SMB2_open_init(struct cifs_tcon *tcon, struct TCP_Server_Info *server,
(struct create_context *)v->iov_base;
cctx->Next = cpu_to_le32(len);
+ le32_add_cpu(&req->CreateContextsLength, len);
}
+ le32_add_cpu(&req->CreateContextsLength,
+ iov[n_iov-1].iov_len);
}
rqst->rq_nvec = n_iov;
--
2.30.2
