Hi Geert, >>> net/bluetooth/mgmt.c: In function ‘read_local_oob_ext_data_complete’: >>> net/bluetooth/mgmt.c:6474: warning: ‘r256’ may be used uninitialized in >>> this function >>> net/bluetooth/mgmt.c:6474: warning: ‘h256’ may be used uninitialized in >>> this function >>> net/bluetooth/mgmt.c:6474: warning: ‘r192’ may be used uninitialized in >>> this function >>> net/bluetooth/mgmt.c:6474: warning: ‘h192’ may be used uninitialized in >>> this function >>> >>> While these are false positives, the code can be shortened by >>> pre-initializing the hash table pointers and eir_len. This has the side >>> effect of killing the compiler warnings. >> >> can you be a bit specific on which compiler version is this. I fixed one >> occurrence that seemed valid. However in this case the compiler seems to be >> just plain stupid. On a gcc 4.9, I am not seeing these for example. > > gcc 4.1.2. As there were too many false positives, these warnings were > disabled in later versions (throwing away the children with the bad water). > > If you don't like my patch, just drop it. I only look at newly > introduced warnings > of this kind anyway.
I really do not know what is the best solution here. This is a false positive. And I have been looking at this particular code for a warning that was valid, but we missed initially. But these warnings that you are fixing are clearly false positive. If this only happens with an old compiler version, I would tend to leave the code as is. Then again, what is the general preferred approach here? Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
