linux-kernel - Re: Mark bitrevX() functions as const

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Message-ID: <20061211132540.GA4629@APFDCB5C>
Date:	Mon, 11 Dec 2006 22:25:40 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	David Howells <dhowells@...hat.com>
Cc:	torvalds@...l.org, akpm@...l.org, linux-kernel@...r.kernel.org
Subject: Re: Mark bitrevX() functions as const

On Mon, Dec 11, 2006 at 12:35:36PM +0000, David Howells wrote:
> diff --git a/include/linux/bitrev.h b/include/linux/bitrev.h
> index 05e540d..032056b 100644
> --- a/include/linux/bitrev.h
> +++ b/include/linux/bitrev.h
> @@ -5,11 +5,11 @@ #include <linux/types.h>
>  
>  extern u8 const byte_rev_table[256];
>  
> -static inline u8 bitrev8(u8 byte)
> +static inline __attribute__((const)) u8 bitrev8(u8 byte)
>  {
>  	return byte_rev_table[byte];
>  }
>  
> -extern u32 bitrev32(u32 in);
> +extern __attribute__((const)) u32 bitrev32(u32 in);
>  
>  #endif /* _LINUX_BITREV_H */

__attribute_pure__ ?

-
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