From b2a3ad9ca502169fc4c11296fa20f56059c7c031 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 26 Mar 2012 09:55:29 -0400 Subject: [PATCH] cifs: silence compiler warnings showing up with gcc-4.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifssmb.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 8fecc99be344..f52c5ab78f9d 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -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 @@ setCifsAclRetry: 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) -- 2.20.1