Re: [PATCH 1/8] hw/ppc: Clean up local variable shadowing in _FDT helper routine

[Harsh Prateek Bora <harshpb@linux.ibm.com>]

On 9/18/23 20:28, Cédric Le Goater wrote:
> this fixes numerous warnings of this type :
> 
>    In file included from ../hw/ppc/spapr_pci.c:43:
>    ../hw/ppc/spapr_pci.c: In function ‘spapr_dt_phb’:
>    ../include/hw/ppc/fdt.h:18:13: warning: declaration of ‘ret’ shadows a previous local [-Wshadow=compatible-local]
>       18 |         int ret = (exp);                                           \
>          |             ^~~
>    ../hw/ppc/spapr_pci.c:2355:5: note: in expansion of macro ‘_FDT’
>     2355 |     _FDT(bus_off = fdt_add_subnode(fdt, 0, phb->dtbusname));
>          |     ^~~~
>    ../hw/ppc/spapr_pci.c:2311:24: note: shadowed declaration is here
>     2311 |     int bus_off, i, j, ret;
>          |                        ^~~
> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>

Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>

> ---
>   include/hw/ppc/fdt.h | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/include/hw/ppc/fdt.h b/include/hw/ppc/fdt.h
> index a8cd85069fe0..b56ac2a8cbb5 100644
> --- a/include/hw/ppc/fdt.h
> +++ b/include/hw/ppc/fdt.h
> @@ -15,10 +15,10 @@
>   
>   #define _FDT(exp)                                                  \
>       do {                                                           \
> -        int ret = (exp);                                           \
> -        if (ret < 0) {                                             \
> -            error_report("error creating device tree: %s: %s",   \
> -                    #exp, fdt_strerror(ret));                      \
> +        int _ret = (exp);                                          \
> +        if (_ret < 0) {                                            \
> +            error_report("error creating device tree: %s: %s",     \
> +                    #exp, fdt_strerror(_ret));                     \
>               exit(1);                                               \
>           }                                                          \
>       } while (0)