On Mon, 2014-07-07 at 08:26 +0000, David Laight wrote: > From: Joe Perches > > Because gcc issues a complaint about any pointer format with %#p, > > remove the use of SPECIAL to prefix 0x to various pointer types. > > > > There are no uses in the kernel tree of %#p. > > I know you guys don't really care about them, but there might > be uses in out of tree drivers. > > With the change what is output for %#p ?
Linux's output of %#p for normal, non %p<foo> extension use, continues to be prefixed with 0x and zero filled. Prior to this proposed change: %#p uses a fixed width of sizeof(void *) * 2 + 2. %p uses a fixed with of sizeof(void *) * 2 Post: %#p uses a variable width of the minimum of sizeof(void *) * 2 to sizeof(void *) * 2 + 2 depending on the high order 2 bytes of the pointer value. There is no in-kernel tree code that uses %#p so it has no net effect. Personally, I prefer %#p uses the "+ 2" fixed width. The real benefit is removing the auto-prefixing of 0x when using the %pa extension to be consistent with other naked pointer output types. -- 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/
