On Tue, Sep 18, 2018 at 04:03:37PM +0300, Dan Carpenter wrote: > On Tue, Sep 18, 2018 at 08:31:22PM +0800, Gao Xiang wrote: > > (I have no clang environment to build kernel yet... :( I will try later, but I have no idea why it happens, > > and it seems a false warning). > > > > Thanks, > > Gao Xiang > > > > > > > > Or is gcc just being "dumb" here? What about clang, have you tried > > > building it with that compiler as well? > > Yeah. Gcc is wrong. Gcc used to be extra conservative and missed a > bunch of bugs, but I guess now they're going in to opposite direction? > > Smatch gets this correct, but you have to rebuild the cross function DB > twice to make the warning go away. It could be because it starts out > with the old vle_get_logical_extent_head() information so it thinks it > knows how that function works. Ok, thanks for checking (both of you). Just initialize the variable to keep gcc from printing foolish warnings. thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
