cifs: clean up some compiler warnings
New compiler warnings that I noticed when building a patchset based on recent Fedora kernel: fs/cifs/cifssmb.c: In function 'CIFSSMBSetFileSize': fs/cifs/cifssmb.c:4813:8: warning: variable 'data_offset' set but not used [-Wunused-but-set-variable] fs/cifs/file.c: In function 'cifs_open': fs/cifs/file.c:349:24: warning: variable 'pCifsInode' set but not used [-Wunused-but-set-variable] fs/cifs/file.c: In function 'cifs_partialpagewrite': fs/cifs/file.c:1149:23: warning: variable 'cifs_sb' set but not used [-Wunused-but-set-variable] fs/cifs/file.c: In function 'cifs_iovec_write': fs/cifs/file.c:1740:9: warning: passing argument 6 of 'CIFSSMBWrite2' from incompatible pointer type [enabled by default] fs/cifs/cifsproto.h:337:12: note: expected 'unsigned int *' but argument is of type 'size_t *' fs/cifs/readdir.c: In function 'cifs_readdir': fs/cifs/readdir.c:767:23: warning: variable 'cifs_sb' set but not used [-Wunused-but-set-variable] fs/cifs/cifs_dfs_ref.c: In function 'cifs_dfs_d_automount': fs/cifs/cifs_dfs_ref.c:342:2: warning: 'rc' may be used uninitialized in this function [-Wuninitialized] fs/cifs/cifs_dfs_ref.c:278:6: note: 'rc' was declared here Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
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