Re: [uclinux-dist-devel] [GIT PULL] Blackfin updates for 3.11

[Steven Miao]

Hi Geert,

On Tue, Jul 16, 2013 at 1:28 AM, Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
> Hi Steven,
>
> On Tue, Jul 9, 2013 at 11:15 AM, Steven Miao <realmz6@xxxxxxxxxx> wrote:
>> Steven Miao (2):
>>       smp: refine bf561 smpboot code
>
> Unfortunately this landed too late in -next to notice:
>
> arch/blackfin/mach-common/smp.c:150:2: error: conversion to non-scalar
> type requested
> arch/blackfin/mach-common/smp.c:185:23: error: incompatible types when
> assigning to type 'atomic_t' from type 'int'
> arch/blackfin/mach-common/smp.c:186:24: error: incompatible types when
> assigning to type 'atomic_t' from type 'int'
> make[2]: *** [arch/blackfin/mach-common/smp.o] Error 1
>
> http://kisskb.ellerman.id.au/kisskb/buildresult/9115952/
>
> It's a bit embarrassing to break your own core code (with a patch that was
> submitted for public review in August 2012?).
>
> The last two can be trivially-fixed with the following
> (whitespace-damaged gmail)
> patch:
>
> --- a/arch/blackfin/mach-common/smp.c
> +++ b/arch/blackfin/mach-common/smp.c
> @@ -182,8 +182,8 @@ static void bfin_ipi_init(void)
>   struct ipi_data *bfin_ipi_data;
>   for_each_possible_cpu(cpu) {
>   bfin_ipi_data = &per_cpu(bfin_ipi, cpu);
> - bfin_ipi_data->bits = 0;
> - bfin_ipi_data->count = 0;
> + atomic_set(&bfin_ipi_data->bits, 0);
> + atomic_set(&bfin_ipi_data->count, 0);
>   }
>  }

Sorry, I should use atomic_ops to hanle atomic_t type.
>
> but the first one is non-trivial: using xchg() on atomic_t is a bit gross...
>
> 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
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