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(parent: dba14e1) | patch
lib: vsprintf: optimize division by 10000
authorGeorge Spelvin <linux@horizon.com>
Fri, 28 Sep 2012 00:20:13 +0000 (10:20 +1000)
committerStephen Rothwell <sfr@canb.auug.org.au>
Fri, 5 Oct 2012 04:01:19 +0000 (14:01 +1000)
commit9dcf1c4f1ab974871dfc0dc87e97fccf29656d7b
treef07a703fcf4a7cf8170bf66949945d361cf42bd5tree | snapshot
parentdba14e199be40b90dcb0b582e750c4decaa4675fcommit | diff
lib: vsprintf: optimize division by 10000

The same multiply-by-inverse technique can be used to convert division by
10000 to a 32x32->64-bit multiply.

Signed-off-by: George Spelvin <linux@horizon.com>
Cc: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
lib/vsprintf.c diff | blob | history
Linux kernel for KaRo TX COM modules