Re: linux-next: boot messages from today's linux-next

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Stephen,

On Tue, May 29, 2018 at 2:23 PM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> Hi Mathieu,
>
> On Tue, 29 May 2018 13:56:48 +0200 Mathieu Malaterre <malat@xxxxxxxxxx> wrote:
>>
>> On Tue, May 29, 2018 at 1:02 PM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>> > Hi all,
>> >
>> > My qemu boots of today's powerpc linux-next kernel produced the following
>> > boot message differences:
>> >
>> > -Max number of cores passed to firmware: 2048 (NR_CPUS = 2048)
>> > +Max number of cores passed to firmware: u (NR_CPUS = 2048)
>> >
>> > Seemingly caused by commit
>> >
>> >   eae5f709a4d7 ("powerpc: Add __printf verification to prom_printf")
>>
>> My bad. Patch is pending (thanks Michael!):
>>
>> https://patchwork.ozlabs.org/patch/921948/
>
> Umm, that fixes some other messages, but not this particular one.

Here is what I tried to say:

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 4d62f561f272..72ebe5896c1d 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -379,6 +379,11 @@ static void __init prom_printf(const char *format, ...)
                        }
                        prom_print_dec(vs);
                        break;
+               case 'u':
+                       ++q;
+                       vs = va_arg(args, unsigned long);
+                       prom_print_dec(vs);
+                       break;
                case 'l':
                        ++q;
                        if (*q == 0)


> --
> Cheers,
> Stephen Rothwell
--
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