Re: [PATCH] ARM: Use udiv/sdiv for __aeabi_{u}idiv library functions

From: Stephen Boyd
Date: Fri Nov 08 2013 - 13:53:17 EST


On 11/08/13 08:52, Russell King - ARM Linux wrote:
> On Fri, Nov 08, 2013 at 10:58:42AM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
>> On 11:20 Thu 07 Nov , Stephen Boyd wrote:
>>> @@ -381,6 +384,13 @@ static void __init cpuid_init_hwcaps(void)
>>> elf_hwcap |= HWCAP_IDIVT;
>>> }
>>>
>>> +#ifdef CONFIG_THUMB2_KERNEL
>> if (IS_ENABLED(CONFIG_THUMB2_KERNEL) && elf_hwcap & HWCAP_IDIVT)
>>> + if (elf_hwcap & HWCAP_IDIVT)
>>> +#else
>>> + if (elf_hwcap & HWCAP_IDIVA)
>>> +#endif
> Take another look, and you'll see the change that you're suggesting is
> wrong. Instead, the following may be a more reasonable suggestion as
> a suitable replacement:
>
> if (elf_hwcap & (IS_ENABLED(CONFIG_THUMB2_KERNEL) ?
> HWCAP_IDIVT : HWCAP_IDIVA))

I can use IS_ENABLED() but I'd prefer a local variable to make it
simpler in the conditional.

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