On Tue, Apr 10, 2018 at 12:46:24PM -1000, Joey Pabalinas wrote: > Recent changes to the min()/max() macros in include/linux/kernel.h > have added a lot of noise when compiling the kernel with Sparse checking > enabled. This mostly is due to the *huge* increase in the number of > sizeof(void) warnings, a larger number of which can safely be ignored. > > Add the -Wpointer-arith flag to enable/disable these warnings (along > with the warning when applying sizeof to function types as well as > warning about pointer arithmetic on these types exactly like the > GCC -Wpointer-arith flag) on demand; the warning itself has been disabled > by default to reduce the large influx of noise which was inadvertently > added by commit 3c8ba0d61d04ced9f8 (kernel.h: Retain constant expression > output for max()/min()). > > Update the manpage to document the new flag and add a validation case > for sizeof(void). > > CC: Kees Cook <keescook@xxxxxxxxxxxx> > CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> > CC: Martin Uecker <Martin.Uecker@xxxxxxxxxxxxxxxxxxxxx> > CC: Al Viro <viro@xxxxxxxxxxxxxxxxxx> > CC: Christopher Li <sparse@xxxxxxxxxxx> > CC: Joey Pabalinas <joeypabalinas@xxxxxxxxx> > CC: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx> > Signed-off-by: Joey Pabalinas <joeypabalinas@xxxxxxxxx> > Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx> Thanks, Acked-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-sparse" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
