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ksmbd: set NegotiateContextCount once instead of every inc

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[ Upstream commit 34e8ccf9ce ]

There are no early returns, so marshalling the incremented
NegotiateContextCount with every context is unnecessary.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David Disseldorp
2023-12-31 16:12:33 +09:00
committed by Greg Kroah-Hartman
parent 8d271ef5e5
commit 2182d96ec0
1 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
fs/smb/server/smb2pdu.c
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@@ -847,7 +847,6 @@ static void assemble_neg_contexts(struct ksmbd_conn *conn,
"assemble SMB2_PREAUTH_INTEGRITY_CAPABILITIES context\n"); "assemble SMB2_PREAUTH_INTEGRITY_CAPABILITIES context\n");
build_preauth_ctxt((struct smb2_preauth_neg_context *)pneg_ctxt, build_preauth_ctxt((struct smb2_preauth_neg_context *)pneg_ctxt,
conn->preauth_info->Preauth_HashId); conn->preauth_info->Preauth_HashId);
rsp->NegotiateContextCount = cpu_to_le16(neg_ctxt_cnt);
inc_rfc1001_len(smb2_buf_len, AUTH_GSS_PADDING); inc_rfc1001_len(smb2_buf_len, AUTH_GSS_PADDING);
ctxt_size = sizeof(struct smb2_preauth_neg_context); ctxt_size = sizeof(struct smb2_preauth_neg_context);
/* Round to 8 byte boundary */ /* Round to 8 byte boundary */
@@ -859,7 +858,7 @@ static void assemble_neg_contexts(struct ksmbd_conn *conn,
"assemble SMB2_ENCRYPTION_CAPABILITIES context\n"); "assemble SMB2_ENCRYPTION_CAPABILITIES context\n");
build_encrypt_ctxt((struct smb2_encryption_neg_context *)pneg_ctxt, build_encrypt_ctxt((struct smb2_encryption_neg_context *)pneg_ctxt,
conn->cipher_type); conn->cipher_type);
rsp->NegotiateContextCount = cpu_to_le16(++neg_ctxt_cnt); neg_ctxt_cnt++;
ctxt_size += sizeof(struct smb2_encryption_neg_context) + 2; ctxt_size += sizeof(struct smb2_encryption_neg_context) + 2;
/* Round to 8 byte boundary */ /* Round to 8 byte boundary */
pneg_ctxt += pneg_ctxt +=
@@ -874,7 +873,7 @@ static void assemble_neg_contexts(struct ksmbd_conn *conn,
/* Temporarily set to SMB3_COMPRESS_NONE */ /* Temporarily set to SMB3_COMPRESS_NONE */
build_compression_ctxt((struct smb2_compression_capabilities_context *)pneg_ctxt, build_compression_ctxt((struct smb2_compression_capabilities_context *)pneg_ctxt,
conn->compress_algorithm); conn->compress_algorithm);
rsp->NegotiateContextCount = cpu_to_le16(++neg_ctxt_cnt); neg_ctxt_cnt++;
ctxt_size += sizeof(struct smb2_compression_capabilities_context) + 2; ctxt_size += sizeof(struct smb2_compression_capabilities_context) + 2;
/* Round to 8 byte boundary */ /* Round to 8 byte boundary */
pneg_ctxt += round_up(sizeof(struct smb2_compression_capabilities_context) + 2, pneg_ctxt += round_up(sizeof(struct smb2_compression_capabilities_context) + 2,
@@ -886,7 +885,7 @@ static void assemble_neg_contexts(struct ksmbd_conn *conn,
ksmbd_debug(SMB, ksmbd_debug(SMB,
"assemble SMB2_POSIX_EXTENSIONS_AVAILABLE context\n"); "assemble SMB2_POSIX_EXTENSIONS_AVAILABLE context\n");
build_posix_ctxt((struct smb2_posix_neg_context *)pneg_ctxt); build_posix_ctxt((struct smb2_posix_neg_context *)pneg_ctxt);
rsp->NegotiateContextCount = cpu_to_le16(++neg_ctxt_cnt); neg_ctxt_cnt++;
ctxt_size += sizeof(struct smb2_posix_neg_context); ctxt_size += sizeof(struct smb2_posix_neg_context);
/* Round to 8 byte boundary */ /* Round to 8 byte boundary */
pneg_ctxt += round_up(sizeof(struct smb2_posix_neg_context), 8); pneg_ctxt += round_up(sizeof(struct smb2_posix_neg_context), 8);
@@ -898,10 +897,11 @@ static void assemble_neg_contexts(struct ksmbd_conn *conn,
"assemble SMB2_SIGNING_CAPABILITIES context\n"); "assemble SMB2_SIGNING_CAPABILITIES context\n");
build_sign_cap_ctxt((struct smb2_signing_capabilities *)pneg_ctxt, build_sign_cap_ctxt((struct smb2_signing_capabilities *)pneg_ctxt,
conn->signing_algorithm); conn->signing_algorithm);
rsp->NegotiateContextCount = cpu_to_le16(++neg_ctxt_cnt); neg_ctxt_cnt++;
ctxt_size += sizeof(struct smb2_signing_capabilities) + 2; ctxt_size += sizeof(struct smb2_signing_capabilities) + 2;
} }
rsp->NegotiateContextCount = cpu_to_le16(neg_ctxt_cnt);
inc_rfc1001_len(smb2_buf_len, ctxt_size); inc_rfc1001_len(smb2_buf_len, ctxt_size);
} }