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Groups > linux.kernel > #1534532
| From | Anatolij Gustschin <agust@denx.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v4 1/3] lib: add bitrev8x4() |
| Date | 2016-12-01 23:50 +0100 |
| Message-ID | <sJIkW-3mt-3@gated-at.bofh.it> (permalink) |
| References | <sJD1U-70r-15@gated-at.bofh.it> <sJD1U-70r-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, 1 Dec 2016 09:04:50 -0800
Joshua Clayton stillcompiling@gmail.com wrote:
...
>diff --git a/arch/arm/include/asm/bitrev.h b/arch/arm/include/asm/bitrev.h
>index ec291c3..6d2e9ca 100644
>--- a/arch/arm/include/asm/bitrev.h
>+++ b/arch/arm/include/asm/bitrev.h
>@@ -17,4 +17,9 @@ static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
> return __arch_bitrev32((u32)x) >> 24;
> }
>
>+static __always_inline __attribute_const__ u32 __arch_bitrev8x4(u32 x)
>+{
>+ __asm__ ("rbit %0, %1; rev %0, %0" : "=r" (x) : "r" (x));
return x;
>+}
otherwise you get
In function '__arch_bitrev8x4':
warning: no return statement in function returning non-void [-Wreturn-type]
--
Anatolij
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[PATCH v4 1/3] lib: add bitrev8x4() Joshua Clayton <stillcompiling@gmail.com> - 2016-12-01 18:10 +0100
Re: [PATCH v4 1/3] lib: add bitrev8x4() Anatolij Gustschin <agust@denx.de> - 2016-12-01 23:50 +0100
Re: [PATCH v4 1/3] lib: add bitrev8x4() Joshua Clayton <stillcompiling@gmail.com> - 2016-12-02 01:10 +0100
Re: [PATCH v4 1/3] lib: add bitrev8x4() Anatolij Gustschin <agust@denx.de> - 2016-12-02 09:00 +0100
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