On Fri, 2015-12-04 at 11:47 -0500, Jason Baron wrote: > When DYNAMIC_DEBUG is enabled we have this wrapper from > include/linux/dynamic_debug.h: > > if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) > <do debug stuff> > > So the compiler is not emitting the side-effects in this > case.
Huh? Do I misunderstand what you are writing? You are testing a variable that is not generally set so the call is not being performed in the general case, but the compiler can not elide the code. If the variable was enabled via the control file, the __dynamic_pr_debug would be performed with the use-after-free. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
