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* [PATCH v1] net/sunrpc/cache: simplify code by using hex_pack_byte()
@ 2013-12-12 13:49 Andy Shevchenko
  2013-12-12 16:00 ` J. Bruce Fields
  0 siblings, 1 reply; 2+ messages in thread
From: Andy Shevchenko @ 2013-12-12 13:49 UTC (permalink / raw)
  To: netdev, David S. Miller, linux-nfs, Trond Myklebust; +Cc: Andy Shevchenko

hex_pack_byte() is a fast way to convert a byte in its ASCII representation. We
may use it instead of custom approach.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 net/sunrpc/cache.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index a72de07..0877db0 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -1111,9 +1111,7 @@ void qword_addhex(char **bpp, int *lp, char *buf, int blen)
 		*bp++ = 'x';
 		len -= 2;
 		while (blen && len >= 2) {
-			unsigned char c = *buf++;
-			*bp++ = '0' + ((c&0xf0)>>4) + (c>=0xa0)*('a'-'9'-1);
-			*bp++ = '0' + (c&0x0f) + ((c&0x0f)>=0x0a)*('a'-'9'-1);
+			bp = hex_byte_pack(bp, *buf++);
 			len -= 2;
 			blen--;
 		}
-- 
1.8.4.4


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH v1] net/sunrpc/cache: simplify code by using hex_pack_byte()
  2013-12-12 13:49 [PATCH v1] net/sunrpc/cache: simplify code by using hex_pack_byte() Andy Shevchenko
@ 2013-12-12 16:00 ` J. Bruce Fields
  0 siblings, 0 replies; 2+ messages in thread
From: J. Bruce Fields @ 2013-12-12 16:00 UTC (permalink / raw)
  To: Andy Shevchenko; +Cc: netdev, David S. Miller, linux-nfs, Trond Myklebust

On Thu, Dec 12, 2013 at 03:49:21PM +0200, Andy Shevchenko wrote:
> hex_pack_byte() is a fast way to convert a byte in its ASCII representation. We
> may use it instead of custom approach.

Thanks, I'll take that through the nfsd tree for 3.14.

--b.

> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  net/sunrpc/cache.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
> index a72de07..0877db0 100644
> --- a/net/sunrpc/cache.c
> +++ b/net/sunrpc/cache.c
> @@ -1111,9 +1111,7 @@ void qword_addhex(char **bpp, int *lp, char *buf, int blen)
>  		*bp++ = 'x';
>  		len -= 2;
>  		while (blen && len >= 2) {
> -			unsigned char c = *buf++;
> -			*bp++ = '0' + ((c&0xf0)>>4) + (c>=0xa0)*('a'-'9'-1);
> -			*bp++ = '0' + (c&0x0f) + ((c&0x0f)>=0x0a)*('a'-'9'-1);
> +			bp = hex_byte_pack(bp, *buf++);
>  			len -= 2;
>  			blen--;
>  		}
> -- 
> 1.8.4.4
> 
> --
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^ permalink raw reply	[flat|nested] 2+ messages in thread

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