diff mbox series

[-next,1/2] cifs: Use helper macro SMB2_CREATE_TAG_POSIX

Message ID 20220826103927.2802716-2-zhangxiaoxu5@huawei.com (mailing list archive)
State New, archived
Headers show
Series Use help macro SMB2_CREATE_TAG_POSIX in cifs and ksmbd | expand

Commit Message

Zhang Xiaoxu Aug. 26, 2022, 10:39 a.m. UTC 
Posix tag already defined in fs/smbfs_common/smb2pdu.h, use
the helper macro SMB2_CREATE_TAG_POSIX here.

Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
---
 fs/cifs/smb2pdu.c | 43 +++----------------------------------------
 1 file changed, 3 insertions(+), 40 deletions(-)
diff mbox series

Patch

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 128e44e57528..0b0a30b8a114 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -520,23 +520,7 @@  build_posix_ctxt(struct smb2_posix_neg_context *pneg_ctxt)
 {
 	pneg_ctxt->ContextType = SMB2_POSIX_EXTENSIONS_AVAILABLE;
 	pneg_ctxt->DataLength = cpu_to_le16(POSIX_CTXT_DATA_LEN);
-	/* SMB2_CREATE_TAG_POSIX is "0x93AD25509CB411E7B42383DE968BCD7C" */
-	pneg_ctxt->Name[0] = 0x93;
-	pneg_ctxt->Name[1] = 0xAD;
-	pneg_ctxt->Name[2] = 0x25;
-	pneg_ctxt->Name[3] = 0x50;
-	pneg_ctxt->Name[4] = 0x9C;
-	pneg_ctxt->Name[5] = 0xB4;
-	pneg_ctxt->Name[6] = 0x11;
-	pneg_ctxt->Name[7] = 0xE7;
-	pneg_ctxt->Name[8] = 0xB4;
-	pneg_ctxt->Name[9] = 0x23;
-	pneg_ctxt->Name[10] = 0x83;
-	pneg_ctxt->Name[11] = 0xDE;
-	pneg_ctxt->Name[12] = 0x96;
-	pneg_ctxt->Name[13] = 0x8B;
-	pneg_ctxt->Name[14] = 0xCD;
-	pneg_ctxt->Name[15] = 0x7C;
+	memcpy(pneg_ctxt->Name, SMB2_CREATE_TAG_POSIX, 16);
 }
 
 static void
@@ -804,23 +788,7 @@  create_posix_buf(umode_t mode)
 		cpu_to_le16(offsetof(struct create_posix, Name));
 	buf->ccontext.NameLength = cpu_to_le16(16);
 
-	/* SMB2_CREATE_TAG_POSIX is "0x93AD25509CB411E7B42383DE968BCD7C" */
-	buf->Name[0] = 0x93;
-	buf->Name[1] = 0xAD;
-	buf->Name[2] = 0x25;
-	buf->Name[3] = 0x50;
-	buf->Name[4] = 0x9C;
-	buf->Name[5] = 0xB4;
-	buf->Name[6] = 0x11;
-	buf->Name[7] = 0xE7;
-	buf->Name[8] = 0xB4;
-	buf->Name[9] = 0x23;
-	buf->Name[10] = 0x83;
-	buf->Name[11] = 0xDE;
-	buf->Name[12] = 0x96;
-	buf->Name[13] = 0x8B;
-	buf->Name[14] = 0xCD;
-	buf->Name[15] = 0x7C;
+	memcpy(buf->Name, SMB2_CREATE_TAG_POSIX, 16);
 	buf->Mode = cpu_to_le32(mode);
 	cifs_dbg(FYI, "mode on posix create 0%o\n", mode);
 	return buf;
@@ -2114,11 +2082,6 @@  smb2_parse_contexts(struct TCP_Server_Info *server,
 	unsigned int next;
 	unsigned int remaining;
 	char *name;
-	static const char smb3_create_tag_posix[] = {
-		0x93, 0xAD, 0x25, 0x50, 0x9C,
-		0xB4, 0x11, 0xE7, 0xB4, 0x23, 0x83,
-		0xDE, 0x96, 0x8B, 0xCD, 0x7C
-	};
 
 	*oplock = 0;
 	data_offset = (char *)rsp + le32_to_cpu(rsp->CreateContextsOffset);
@@ -2140,7 +2103,7 @@  smb2_parse_contexts(struct TCP_Server_Info *server,
 			parse_query_id_ctxt(cc, buf);
 		else if ((le16_to_cpu(cc->NameLength) == 16)) {
 			if (posix &&
-			    memcmp(name, smb3_create_tag_posix, 16) == 0)
+			    memcmp(name, SMB2_CREATE_TAG_POSIX, 16) == 0)
 				parse_posix_ctxt(cc, buf, posix);
 		}
 		/* else {