[rtl8191SU]# make 
make ARCH=i386 CROSS_COMPILE= -C /lib/modules/2.6.41.1-1.fc15.i686.PAE/build M=/ins/rtl8191SU  modules
make[1]: se ingresa al directorio `/usr/src/kernels/2.6.41.1-1.fc15.i686.PAE'
  CC [M]  /ins/rtl8191SU/cmd/rtl871x_cmd.o
In file included from /ins/rtl8191SU/include/drv_types.h:70:0,
                 from /ins/rtl8191SU/cmd/rtl871x_cmd.c:24:
/ins/rtl8191SU/include/rtl871x_cmd.h:107:25: error: el campo ‘event_tasklet’ tiene tipo de dato incompleto
In file included from /ins/rtl8191SU/include/drv_types.h:72:0,
                 from /ins/rtl8191SU/cmd/rtl871x_cmd.c:24:
/ins/rtl8191SU/include/rtl871x_xmit.h:355:24: error: el campo ‘xmit_tasklet’ tiene tipo de dato incompleto
In file included from /ins/rtl8191SU/include/drv_types.h:73:0,
                 from /ins/rtl8191SU/cmd/rtl871x_cmd.c:24:
/ins/rtl8191SU/include/rtl871x_recv.h:204:24: error: el campo ‘recv_tasklet’ tiene tipo de dato incompleto
make[2]: *** [/ins/rtl8191SU/cmd/rtl871x_cmd.o] Error 1
make[1]: *** [_module_/ins/rtl8191SU] Error 2
make[1]: se sale del directorio `/usr/src/kernels/2.6.41.1-1.fc15.i686.PAE'
make: *** [modules] Error 2

==============================================================
Additional info: I've:
kernel = 2.6.41.1-1.fc15.i686.PAE
cpu= AMD Athlon(tm) 64 X2 Dual Core Processor 5200+
gcc versión 4.6.1 20110908 (Red Hat 4.6.1-9) 
###
Driver from REALTEK web home...With kernel-PAE-2.6.40.6-0.fc15.i686 and previous versions all OK...but with kernel-PAE-2.6.41.1-1.fc15.i686 and kernel 3.0 (Fedora 16) start the problems.