5.15-stable review patch. If anyone has any objections, please let me know.
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From: David Disseldorp ddiss@suse.de
[ Upstream commit 34e8ccf9ce24b6b2e275bbe35cd392e18fbbd369 ]
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: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ksmbd/smb2pdu.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
--- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -848,7 +848,6 @@ static void assemble_neg_contexts(struct "assemble SMB2_PREAUTH_INTEGRITY_CAPABILITIES context\n"); build_preauth_ctxt((struct smb2_preauth_neg_context *)pneg_ctxt, conn->preauth_info->Preauth_HashId); - rsp->NegotiateContextCount = cpu_to_le16(neg_ctxt_cnt); inc_rfc1001_len(smb2_buf_len, AUTH_GSS_PADDING); ctxt_size = sizeof(struct smb2_preauth_neg_context); /* Round to 8 byte boundary */ @@ -860,7 +859,7 @@ static void assemble_neg_contexts(struct "assemble SMB2_ENCRYPTION_CAPABILITIES context\n"); build_encrypt_ctxt((struct smb2_encryption_neg_context *)pneg_ctxt, conn->cipher_type); - rsp->NegotiateContextCount = cpu_to_le16(++neg_ctxt_cnt); + neg_ctxt_cnt++; ctxt_size += sizeof(struct smb2_encryption_neg_context) + 2; /* Round to 8 byte boundary */ pneg_ctxt += @@ -875,7 +874,7 @@ static void assemble_neg_contexts(struct /* Temporarily set to SMB3_COMPRESS_NONE */ build_compression_ctxt((struct smb2_compression_ctx *)pneg_ctxt, conn->compress_algorithm); - rsp->NegotiateContextCount = cpu_to_le16(++neg_ctxt_cnt); + neg_ctxt_cnt++; ctxt_size += sizeof(struct smb2_compression_ctx) + 2; /* Round to 8 byte boundary */ pneg_ctxt += round_up(sizeof(struct smb2_compression_ctx) + 2, @@ -887,7 +886,7 @@ static void assemble_neg_contexts(struct ksmbd_debug(SMB, "assemble SMB2_POSIX_EXTENSIONS_AVAILABLE context\n"); 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); /* Round to 8 byte boundary */ pneg_ctxt += round_up(sizeof(struct smb2_posix_neg_context), 8); @@ -899,10 +898,11 @@ static void assemble_neg_contexts(struct "assemble SMB2_SIGNING_CAPABILITIES context\n"); build_sign_cap_ctxt((struct smb2_signing_capabilities *)pneg_ctxt, conn->signing_algorithm); - rsp->NegotiateContextCount = cpu_to_le16(++neg_ctxt_cnt); + neg_ctxt_cnt++; ctxt_size += sizeof(struct smb2_signing_capabilities) + 2; }
+ rsp->NegotiateContextCount = cpu_to_le16(neg_ctxt_cnt); inc_rfc1001_len(smb2_buf_len, ctxt_size); }