Re: [PATCH v5 1/2] lib: add crc64 calculation routines

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On 12/29/18 10:58 上午, NeilBrown wrote:
> On Thu, Jul 26 2018, Andrew Morton wrote:
> 
>> On Thu, 26 Jul 2018 13:33:51 +0800 Coly Li <colyli@xxxxxxx>
>> wrote:
>> 
>>> This patch adds the re-write crc64 calculation routines for
>>> Linux kernel. The CRC64 polynomial arithmetic follows ECMA-182
>>> specification, inspired by CRC paper of Dr. Ross N. Williams 
>>> (see http://www.ross.net/crc/download/crc_v3.txt) and other
>>> public domain implementations.
> 
> Hi Coly and Andrew,
> 
> This patch breaks compilation if linux headers files are not
> installed (reported at
> https://github.com/gnubee-git/GnuBee_Docs/issues/75). Following
> fixes it.
> 
> Thanks, NeilBrown
> 

Hi Neil,

Thanks for the fix. I add by Acked-by.

Coly Li


> From: NeilBrown <neil@xxxxxxxxxx> Subject: [PATCH] lib: don't
> depend on linux headers being installed.
> 
> gen_crc64table requires linux include files to be installed in
> /usr/include/linux.  This is a new requrement so hosts that could
> previously build the kernel, now cannot.
> 
> gen_crc64table makes this requirement by including <linux/swab.h>, 
> but nothing from that header is actaully used.
> 
> So remove the #include, so that the linux headers no longer need to
> be installed.
> 
> Fixes: feba04fd2cf8 ("lib: add crc64 calculation routines") 
> Signed-off-by: NeilBrown <neil@xxxxxxxxxx>

Acked-by: Coly Li <colyli@xxxxxxx>

> --- lib/gen_crc64table.c | 2 -- 1 file changed, 2 deletions(-)
> 
> diff --git a/lib/gen_crc64table.c b/lib/gen_crc64table.c index
> 9011926e4162..094b43aef8db 100644 --- a/lib/gen_crc64table.c +++
> b/lib/gen_crc64table.c @@ -16,8 +16,6 @@ #include <inttypes.h> 
> #include <stdio.h>
> 
> -#include <linux/swab.h> - #define CRC64_ECMA182_POLY
> 0x42F0E1EBA9EA3693ULL
> 
> static uint64_t crc64_table[256] = {0};
> 

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