On Wed, 2015-11-25 at 02:46 -0800, Jeff Kirsher wrote: > On Tue, 2015-11-24 at 16:43 -0800, Joe Perches wrote: > > On Tue, 2015-11-24 at 16:04 -0800, Jeff Kirsher wrote: > > > From: Helin Zhang <helin.zh...@intel.com> > > > > > > Pointer of type void * shouldn't be used in arithmetic, which may > > > result in compilation error. Casting of (u8 *) can be added to fix > > > that. > > > > > > > void * arithmetic is used quite frequently in the kernel. > > > > What compiler emits an error? > > When you use the gcc -Wpointer-arith, it generates the warning.
make W=3 does that $ make help [...] make W=n [targets] Enable extra gcc checks, n=1,2,3 where 1: warnings which may be relevant and do not occur too often 2: warnings which occur quite often but may still be relevant 3: more obscure warnings, can most likely be ignored but I think it should be ignored. -- 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