Commit b2a3ad9c authored by Jeff Layton's avatar Jeff Layton Committed by Steve French

cifs: silence compiler warnings showing up with gcc-4.7.0

gcc-4.7.0 has started throwing these warnings when building cifs.ko.

  CC [M]  fs/cifs/cifssmb.o
fs/cifs/cifssmb.c: In function ‘CIFSSMBSetCIFSACL’:
fs/cifs/cifssmb.c:3905:9: warning: array subscript is above array bounds [-Warray-bounds]
fs/cifs/cifssmb.c: In function ‘CIFSSMBSetFileInfo’:
fs/cifs/cifssmb.c:5711:8: warning: array subscript is above array bounds [-Warray-bounds]
fs/cifs/cifssmb.c: In function ‘CIFSSMBUnixSetFileInfo’:
fs/cifs/cifssmb.c:6001:25: warning: array subscript is above array bounds [-Warray-bounds]

This patch cleans up the code a bit by using the offsetof macro instead
of the funky "&pSMB->hdr.Protocol" construct.
Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
parent b5efb978
......@@ -3892,13 +3892,12 @@ CIFSSMBSetCIFSACL(const int xid, struct cifs_tcon *tcon, __u16 fid,
int rc = 0;
int bytes_returned = 0;
SET_SEC_DESC_REQ *pSMB = NULL;
NTRANSACT_RSP *pSMBr = NULL;
void *pSMBr;
setCifsAclRetry:
rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, &pSMBr);
if (rc)
return (rc);
return rc;
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
......@@ -3926,9 +3925,8 @@ CIFSSMBSetCIFSACL(const int xid, struct cifs_tcon *tcon, __u16 fid,
pSMB->AclFlags = cpu_to_le32(aclflag);
if (pntsd && acllen) {
memcpy((char *) &pSMBr->hdr.Protocol + data_offset,
(char *) pntsd,
acllen);
memcpy((char *)pSMBr + offsetof(struct smb_hdr, Protocol) +
data_offset, pntsd, acllen);
inc_rfc1001_len(pSMB, byte_count + data_count);
} else
inc_rfc1001_len(pSMB, byte_count);
......@@ -5708,7 +5706,8 @@ CIFSSMBSetFileInfo(const int xid, struct cifs_tcon *tcon,
param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
offset = param_offset + params;
data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
data_offset = (char *)pSMB +
offsetof(struct smb_hdr, Protocol) + offset;
count = sizeof(FILE_BASIC_INFO);
pSMB->MaxParameterCount = cpu_to_le16(2);
......@@ -5977,7 +5976,7 @@ CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
u16 fid, u32 pid_of_opener)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
FILE_UNIX_BASIC_INFO *data_offset;
char *data_offset;
int rc = 0;
u16 params, param_offset, offset, byte_count, count;
......@@ -5999,8 +5998,9 @@ CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
offset = param_offset + params;
data_offset = (FILE_UNIX_BASIC_INFO *)
((char *)(&pSMB->hdr.Protocol) + offset);
data_offset = (char *)pSMB +
offsetof(struct smb_hdr, Protocol) + offset;
count = sizeof(FILE_UNIX_BASIC_INFO);
pSMB->MaxParameterCount = cpu_to_le16(2);
......@@ -6022,7 +6022,7 @@ CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
inc_rfc1001_len(pSMB, byte_count);
pSMB->ByteCount = cpu_to_le16(byte_count);
cifs_fill_unix_set_info(data_offset, args);
cifs_fill_unix_set_info((FILE_UNIX_BASIC_INFO *)data_offset, args);
rc = SendReceiveNoRsp(xid, tcon->ses, (char *) pSMB, 0);
if (rc)
......
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