Re: [PATCH] hw/intc/arm_gicv3_its: Avoid maybe-uninitialized error in get_vte()

[Alex Bennée]

Philippe Mathieu-Daudé <philmd@linaro.org> writes:

> Fix when using GCC v11.4 (Ubuntu 11.4.0-1ubuntu1~22.04) with CFLAGS=-Og:
>
>   [4/6] Compiling C object libcommon.fa.p/hw_intc_arm_gicv3_its.c.o
>   FAILED: libcommon.fa.p/hw_intc_arm_gicv3_its.c.o
>       inlined from ‘lookup_vte’ at hw/intc/arm_gicv3_its.c:453:9,
>       inlined from ‘vmovp_callback’ at hw/intc/arm_gicv3_its.c:1039:14:
>   hw/intc/arm_gicv3_its.c:347:9: error: ‘vte.rdbase’ may be used 
> uninitialized [-Werror=maybe-uninitialized]
>     347 |         trace_gicv3_its_vte_read(vpeid, vte->valid, vte->vptsize,
>         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>     348 |                                  vte->vptaddr, vte->rdbase);
>         |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~
>   hw/intc/arm_gicv3_its.c: In function ‘vmovp_callback’:
>   hw/intc/arm_gicv3_its.c:1036:13: note: ‘vte’ declared here
>    1036 |     VTEntry vte;
>         |             ^~~
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro