From: Volker Lendecke Date: Thu, 30 Mar 2023 12:04:47 +0000 (+0000) Subject: cifs: Simplify SMB2_open_init() X-Git-Tag: v6.6.17~4951^2~8 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d2ec43b51521b4c83313df60d8b03a6640374c20;p=platform%2Fkernel%2Flinux-rpi.git cifs: Simplify SMB2_open_init() 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 Reviewed-by: Enzo Matsumiya Signed-off-by: Steve French --- diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index d9c2590..875862c 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -821,7 +821,6 @@ 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); @@ -830,7 +829,6 @@ 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; } @@ -2179,8 +2177,6 @@ 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; } @@ -2259,14 +2255,12 @@ 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; } @@ -2275,7 +2269,6 @@ 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 */ @@ -2285,8 +2278,6 @@ 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; } @@ -2295,7 +2286,6 @@ 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) { @@ -2315,7 +2305,6 @@ 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; } @@ -2349,14 +2338,12 @@ 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; } @@ -2479,7 +2466,6 @@ 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; @@ -2487,7 +2473,6 @@ 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; } @@ -2518,14 +2503,12 @@ 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; } @@ -2889,6 +2872,7 @@ 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]; @@ -2897,7 +2881,10 @@ 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;