On Mon, Dec 4, 2017 at 12:05 PM, kbuild test robot <fengguang.wu@xxxxxxxxx> wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git topic/phy-reset-v4 > head: 8999caba1f624814c0e3e2a6fabfdab70ae44e9e > commit: 8274c902dc09564722a4ef7e1364bb3f3f2f9f79 [1/4] phylib: Add device reset GPIO support > config: i386-randconfig-x076-201749 (attached as .config) > compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025 > reproduce: > git checkout 8274c902dc09564722a4ef7e1364bb3f3f2f9f79 > # save the attached .config to linux build tree > make ARCH=i386 > > Note: it may well be a FALSE warning. FWIW you are at least aware of it now. > http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings > > All warnings (new ones prefixed by >>): > > In file included from arch/x86/include/asm/processor.h:32:0, > from arch/x86/include/asm/cpufeature.h:5, > from arch/x86/include/asm/thread_info.h:53, > from include/linux/thread_info.h:38, > from arch/x86/include/asm/preempt.h:7, > from include/linux/preempt.h:81, > from include/linux/spinlock.h:51, > from include/linux/mmzone.h:8, > from include/linux/gfp.h:6, > from include/linux/slab.h:15, > from drivers/net/phy/mdio_bus.c:20: > drivers/net/phy/mdio_bus.c: In function 'mdiobus_register_device': >>> include/linux/err.h:31:9: warning: 'gpiod' may be used uninitialized in this function [-Wmaybe-uninitialized] > return (long) ptr; > ^~~~~~~~~~ > drivers/net/phy/mdio_bus.c:52:20: note: 'gpiod' was declared here > struct gpio_desc *gpiod; > ^~~~~ Thanks! Silly KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
