On Mon, Jan 05, 2009 at 04:52:02PM -0500, Steven Rostedt wrote: > > On Mon, 5 Jan 2009, Sam Ravnborg wrote: > > > > > > > Probably the same issue. The problem is that the first use of a variable > > > is in the OR section of an if statement that does a return. > > > > > > if (x || !(y = init_me()) > > > return; > > > > > > use_me(y); > > > > > > > More warnings: > > fs/partitions/check.c: In function `rescan_partitions': > > fs/partitions/check.c:511: warning: 'state' might be used uninitialized in this function > > > > => follow same pattern > > > > fs/compat_ioctl.c: In function `ppp_sock_fprog_ioctl_trans': > > fs/compat_ioctl.c:859: warning: 'fptr32' might be used uninitialized in this function > > fs/compat_ioctl.c: In function `do_fontx_ioctl': > > fs/compat_ioctl.c:1082: warning: 'data' might be used uninitialized in this function > > fs/compat_ioctl.c: In function `do_atmif_sioc': > > fs/compat_ioctl.c:1302: warning: 'data' might be used uninitialized in this function > > fs/compat_ioctl.c: In function `do_atm_ioctl': > > fs/compat_ioctl.c:1272: warning: 'data' might be used uninitialized in this function > > fs/compat_ioctl.c: In function `mtd_rw_oob': > > fs/compat_ioctl.c:1421: warning: 'data' might be used uninitialized in this function > > fs/compat_ioctl.c: In function `do_usbdevfs_discsignal': > > fs/compat_ioctl.c:1650: warning: 'uctx' might be used uninitialized in this function > > > > This is: > > if (get_user(flen, &u_fprog32->len) || > > get_user(fptr32, &u_fprog32->filter)) > > return -EFAULT; > > Is this all sparc cross compiler? I'm trying to reproduce it on x86 with > no avail :-( > > I would like to test other ways to change the macro, but to do so, I need > to get a compiler that will produce the warnings that you see. What > version of gcc are you using? I used crosstool to build a 3.4.5 gcc: set -ex TARBALLS_DIR=$HOME/downloads RESULT_TOP=/opt/crosstool export TARBALLS_DIR RESULT_TOP GCC_LANGUAGES="c" export GCC_LANGUAGES eval `cat sparc64.dat gcc-3.4.5-glibc-2.3.6-tls.dat` sh all.sh --notest It is running on a 32 bit target. processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 10 cpu MHz : 851.970 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1704.50 clflush size : 32 Sam -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
