From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Mon, 27 Apr 2015 09:12:25 +0000 (+0200)
Subject: s390/bpf: Adjust ALU64_DIV/MOD to match interpreter change
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~169^2~16
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=771aada9ace7e5dd837a69ef0bca08b5455b2d36;p=pandora-kernel.git

s390/bpf: Adjust ALU64_DIV/MOD to match interpreter change

The s390x ALU64_DIV/MOD has been implemented according to the eBPF
interpreter specification that used do_div(). This function does a 64-bit
by 32-bit divide. It turned out that this was wrong and now the interpreter
uses div64_u64_rem() for full 64-bit division.

So fix this and use full 64-bit division in the s390x eBPF backend code.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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